Merge pull request #8143 from open-sausages/pull/4/refactoring-upgrading-doc
The definitive upgrade guide to SilverStripe 4
This commit is contained in:
Ingo Schommer
GitHub
commit
41da6d74fb
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@ -1,26 +1,80 @@
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title: Upgrading
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introduction: Keep your SilverStripe installations up to date with the latest fixes, security patches and new features.
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introduction: Upgrade your project SilverStripe 4 and keep it up to date with the latest fixes, security patches and new features.
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# Upgrading to SilverStripe 4
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SilverStripe applications should be kept up to date with the latest security releases. Usually an update or upgrade to
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your SilverStripe installation means overwriting files, flushing the cache and updating your database schema.
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<div class="info" markdown="1">
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See our [upgrade notes and changelogs](/changelogs/4.0.0) for 4.0.0 specific information, bugfixes and API changes.
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## Understanding and planning your upgrade {#planning}
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How easy will it be to update my project? It's a fair question, and sometimes a difficult one to answer.
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* SilverStripe follows _semantic versioning_ (see our [release process](/contributing/release_process) for details).
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* "Major" releases introduces API change that may break your application.
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* "Minor" releases (x.y) introduces API changes in a backward compatible way and can mark some API as deprecated.
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* "Patch" releases (x.y.z) fix bugs without introducing any API changes.
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* If you've made custom branches of SilverStripe core, or any thirdparty module, upgrades are going to be more complex.
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* More custom features mean more work to re-test all of those features, and adapt to API changes in core.
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* Customisations of a well defined type - such as custom page types or custom blog widgets -
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are going to be easier to upgrade than customisations that modify deep system internals like rewriting SQL queries.
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### Overview of changes
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There are some fundamental changes in SilverStripe 4:
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* PHP 5.6 is now the minimum required version and up to PHP 7.2 is supported.
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* SilverStripe is now even more modular which allows you to remove functionality your project might not need.
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* Common functionality sets can now be installed via SilverStripe _recipes_.
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* SilverStripe modules can now be installed in the `vendor/` folder along with your regular PHP packages.
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* All classes are namespaced: You have to use these, but can decide if you namespace your project code.
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* PHP _traits_ replace a few core classes (e.g. `Object`) and make it easy to apply common patterns
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* Public files can now be served from a `public/` webroot for added security.
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* Versioning is more powerful through an "ownership" concept, and available for all DataObject classes.
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* Changes across objects can be collected in a "campaign" for batch publication.
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* GraphQL is now the favourite way of creating web services with SilverStripe.
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* Asset management has been completely redone with a brand new React-based UI, protected draft files and versioning.
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* Parts of the CMS UI are now build in React and Bootstrap instead of Entwine and custom CSS.
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* PSR-4 auto-loading is supported for modules and for your project code.
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[Learn more about major API changes introduced by SilverStripe 4](#list-of-major-api-changes),
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and dig into the changelogs for [4.0.0](/changelogs/4.0.0), [4.1.0](/changelogs/4.1.0) and [4.2.0](/changelogs/4.2.0).
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### Using recipes instead of requiring individual modules
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The SilverStripe CMS and SilverStripe Framework are becoming more modular. Many of the secondary features contained in SilverStripe CMS 3 and SilverStripe Framework 3 have been moved to separate modules.
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SilverStripe 4 introduces the concept of _recipes_. Recipes are a combination of modules to achieve a common pattern.
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Read the [Switching to recipes](#switching-to-recipes) section of this guide for more information about how recipes work.
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### Automating your upgrades using the SilverStripe Upgrader tool
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We've developed [an upgrader tool](https://github.com/silverstripe/silverstripe-upgrader) which you can use to help
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with the upgrade process. The upgrader is unlikely to completely upgrade your project, however it can take care of the most tedious part of the upgrade.
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It can also be use to upgrade your existing SilverStripe 4 project to a newer minor release.
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## Step 0 - Pre-requisites and background work {#step0}
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Before you begin the upgrade process, make sure you meet these pre-requisites.
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### Back up your files and database
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* Set up your codebase in your development environment.
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* Backup your database content.
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* Backup your codebase (use version control if possible).
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<div class="warning" markdown="1">
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Never update a website on the live server. Get it working on a development copy first!
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</div>
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## Composer
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### Install composer
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SilverStripe CMS is a modular system, and [Composer](http://getcomposer.org)
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is the default way to manage your modules ([instructions](/getting_started/composer)).
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We recommend using `recipe-cms` in your `composer.json` file to help you keep
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up to date and run `composer update`.
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SilverStripe 4 requires the use of [Composer](http://getcomposer.org) for dependency management ([details](/getting_started/composer)).
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We recommend using `recipe-cms` in your `composer.json` file to help you keep up to date and run `composer update`.
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```json
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{
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"require": {
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"silverstripe/recipe-cms": "^1"
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"silverstripe/recipe-cms": "^4"
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}
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}
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```
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@ -29,199 +83,1056 @@ This will also add extra dependencies, such as the `admin`, `asset-admin`, `repo
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modules.
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If you want more granular control over what gets installed,
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reading through the README documentation in the [recipe plugin repository](https://github.com/silverstripe/recipe-plugin)
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and also checking the `composer.json` files in [recipe-core](https://github.com/silverstripe/recipe-core) and
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check out the [recipe plugin repository](https://github.com/silverstripe/recipe-plugin)
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as well as the `composer.json` files in [recipe-core](https://github.com/silverstripe/recipe-core) and
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[recipe-cms](https://github.com/silverstripe/recipe-cms).
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For a description on how to handle issues with pre-existing composer installs or upgrading other modules, please read
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through the [Composer dependency update section](/changelogs/4.0.0#deps)
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## Manual upgrades
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### Install the upgrader tool (optional)
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Using the upgrader is not mandatory, but it can speed up the process.
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Although SilverStripe 4 can run in both PHP 5.6 and PHP 7, the upgrader itself requires PHP 7.
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To install the upgrader globally run this command.
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* Check if any modules (e.g. `blog` or `forum`) in your installation are incompatible and need to be upgraded as well.
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* Backup your database content.
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* Backup your webroot files.
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* Download the new release and uncompress it to a temporary folder.
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* Leave custom folders like *themes* in place.
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* Rename `app/code` folder to `app/src`, updating your `app/_config/app.yml` config to set the new project name.
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* Identify system folders in your webroot (`cms`, `framework` and any additional modules).
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* Delete existing system folders (or move them outside of your webroot).
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* Add a `private static $table_name = 'MyDataObject'` for any custom DataObjects in your code that are namespaced. This ensures that your database table name will be `MyDataObject` instead of `Me_MyPackage_Model_MyDataObject` (converts your namespace to the table_name).
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* Ensure you add [namespaces](http://php.net/manual/en/language.namespaces.php) to any custom classes in your `app/` folder. Your namespaces should follow the pattern of `Vendor\Package` with anything additional defined at your discretion. **Note:** The `Page` and `PageController` classes *must* be defined in the global namespace (or without a namespace).
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* Install the updated framework, CMS and any other modules you require by updating your `composer.json` configuration and running `composer update`. Some features have been split into their own modules, such as `asset-admin` and `errorpage`. Please refer to [`recipe-cms` composer.json](https://github.com/silverstripe/recipe-cms) and [`recipe-core` composer.json](https://github.com/silverstripe/recipe-core) for a list of recommended modules to include.
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* Check if you need to adapt your code to changed PHP APIs. For more information please refer to [the changelog](/changelogs/4.0.0). There is an upgrader tool available to help you with most of the changes required (see below).
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* Visit http://yoursite.com/dev/build/?flush=1 to rebuild the website database.
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* Check if you have overwritten any core templates or styles which might need an update.
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```bash
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composer global require silverstripe/upgrader
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```
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<div class="warning" markdown="1">
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Never update a website on the live server without trying it on a development copy first!
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Add your global composer bin directory to your path. On *nix system, this directory is normally located at `$HOME/.composer/vendor/bin`. On Windows system, this directory is normally located at `C:\Users\<COMPUTER NAME>\AppData\Roaming\Composer\vendor\bin`. You can find the exact location by running this command:
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```bash
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composer global config bin-dir
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```
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On *nix system, the following command will add your global composer bin directory to your path if `bash` is your default shell environment:
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```bash
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echo 'export PATH=$PATH:~/.composer/vendor/bin/' >> ~/.bash_profile
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```
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Each command in the upgrader has somewhat different arguments. However, most of them accept these two options:
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* `--write` which tells the upgrader to apply changes to your code base
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* `--root-dir` which can be use to explicitly specify the root of your project — if not specified the current working directory is assume to be the root of the project.
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You can run `upgrade-code help` to get more information about the upgrader or `upgrade-code help command-name` to information about a specific command.
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<div class="info" markdown="1">
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Sample upgrader commands in this guide assume your working directory is the root of your SilverStripe project. You'll need to use the `--root-dir` flag if that's not the case.
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</div>
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## Environment variables file changed to dotenv
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### Running all the upgrader commands in this guide in on line
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SilverStripe 4 requires the use of `.env` and no longer supports using `_ss_environment.php` for your
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environment configuration.
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You'll need to move your constants to a new `.env` file before SilverStripe will build successfully.
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For further details about the `.env` migration, read through the
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[`_ss_environment.php` changed to `.env` section](/changelogs/4.0.0#env)
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If you have installed the upgrader tool, you can use the `environment` command to generate a valid `.env` file from your
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existing `_ss_environment.php` file.
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The upgrader comes with an `all` command. This command will attempt to run all the upgrader commands in the same order as this guide. This is unlikely to work on your first try, but can be a good way to get started without going through this entire guide.
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```bash
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upgrade-code all --namespace="App\\Web" --psr4
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```
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cd ~/my-project-root
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* `--recipe-core-constraint` defines your SilverStripe release version (optional, will default to the most recent stable release).
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* `--namespace` allows you to specify how your project will be namespaced (optional).
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* `--psr4` allows you to specify that your project structure respect the PSR-4 standard and to use sub-namespaces.
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* `--skip-add-namespace` allows you to skip the `add-namespace` command.
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* `--skip-reorganise` allows you to skip the `reorganise` command.
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* `--skip-webroot` allows you to skip the `webroot` command.
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### Branching your project
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Setting a dedicated branch in your source control system to track your upgrade work can help you manage your upgrade. If you're upgrading a big project, you should consider creating individual branches or commits for each step.
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## Step 1 - Upgrade your dependencies {#step1}
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The first step is to update your dependencies' constraints in your `composer.json` file to require the latest version of modules.
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### Automatically upgrade dependencies with the `recompose` upgrader command
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If you've installed the upgrader, you can use the `recompose` command to help you upgrade your dependencies. This command will try to:
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* upgrade your PHP constraint
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* upgrade core SilverStripe modules to their version 4 equivalent
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* switch to recipes where possible
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* find SilverStripe 4 compatible versions of third party modules.
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Take for example the following SilverStripe 3 `composer.json` file.
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```json
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{
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"name": "app/cms-website",
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"description": "The Example website project.",
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"license": "BSD-3",
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"require": {
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"php": ">=5.3.3",
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"silverstripe/cms": "3.6.5@stable",
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"silverstripe/framework": "3.6.5@stable",
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"silverstripe/reports": "3.6.5@stable",
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"silverstripe/siteconfig": "3.6.5@stable",
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"dnadesign/silverstripe-elemental": "^1.8.0"
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}
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}
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```
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You can upgrade the `composer.json` file with this command:
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```bash
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upgrade-code recompose --write
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```
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You can add a `--recipe-core-constraint` flag to target a specific version of `silverstripe/recipe-core`. By default, the project will be upgraded to the latest stable version. You can use the `--strict` option if you want to use more conservative version constraints. Omit the `--write` flag to preview your changes.
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Your upgraded `composer.json` file will look like this.
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```json
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{
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"name": "app/cms-website",
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"description": "The Example website project.",
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"license": "BSD-3",
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"require": {
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"dnadesign/silverstripe-elemental": "^2.1",
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"php": ">=5.6",
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"silverstripe/recipe-cms": "^4.1"
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}
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}
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```
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If the `recompose` command can't find a compatible version for one of your module, it will keep this dependency in your `composer.json` file with its existing constraint.
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[Continue to Step 2](#step2)
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### Manually upgrading your dependencies
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The instruction in this section assumed you'll be editing your `composer.json` file in a text editor.
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#### Switching to recipes
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Where possible, we recommend you use recipes.
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If your SilverStripe 3 project requires the `silverstripe/cms` module, replace that dependency with `silverstripe/recipe-cms`. The version constraint for `silverstripe/recipe-cms` must match your targeted version of SilverStripe:
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* `~4.0.0` to upgrade to SilverStripe 4.0
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* `~4.1.0` to upgrade to SilverStripe 4.1
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* `~4.2.0` to upgrade to SilverStripe 4.2
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* and so on.
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If your SilverStripe 3 project requires the `silverstripe/framework` module without `silverstripe/cms`, replace `silverstripe/framework` with `silverstripe/recipe-core`. The version constraint for `silverstripe/recipe-core` must match your targeted version of SilverStripe:
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* `~4.0.0` to upgrade to SilverStripe 4.0
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* `~4.1.0` to upgrade to SilverStripe 4.1
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* `~4.2.0` to upgrade to SilverStripe 4.2
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* and so on.
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The following modules are implicitly required by `silverstripe/recipe-core`. They can be removed from your `composer.json` dependencies if you are using `silverstripe/recipe-core` or `silverstripe/recipe-cms`.
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* `silverstripe/framework`
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* `silverstripe/config`
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* `silverstripe/assets`
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The following modules are implicitly required by `silverstripe/recipe-cms`. They can be removed from your `composer.json` dependencies if you are using `silverstripe/recipe-cms`.
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* `silverstripe/admin`
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* `silverstripe/asset-admin`
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* `silverstripe/campaign-admin`
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* `silverstripe/cms`
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* `silverstripe/errorpage`
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* `silverstripe/reports`
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* `silverstripe/graphql`
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* `silverstripe/siteconfig`
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* `silverstripe/versioned`
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* `silverstripe/recipe-core`
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|
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Take for example the following SilverStripe 3 `composer.json`.
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```json
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{
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"name": "app/cms-website",
|
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"require": {
|
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"silverstripe/cms": "3.6.5@stable",
|
||||
"silverstripe/framework": "3.6.5@stable",
|
||||
"silverstripe/reports": "3.6.5@stable",
|
||||
"silverstripe/siteconfig": "3.6.5@stable"
|
||||
}
|
||||
}
|
||||
```
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|
||||
After switching to SilverStripe 4 recipes, the `composer.json` file should look like this.
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```json
|
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{
|
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"name": "app/cms-website",
|
||||
"require": {
|
||||
"silverstripe/recipe-cms": "~4.1.0"
|
||||
}
|
||||
}
|
||||
```
|
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|
||||
#### Explicitly defining your dependencies
|
||||
If you would rather explicitly define your dependencies, you can do so. Update the `silverstripe/framework` constraint and `silverstripe/cms` constraint to match your targeted minor version of SilverStripe 4. If you use `silverstripe/reports` and `silverstripe/siteconfig`, update their constraints as well.
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||||
|
||||
In most cases, you'll also want to require the same modules as the equivalent recipes. If you don't, your users will likely lose some features after the upgrade is completed.
|
||||
|
||||
Take for example the following SilverStripe 3 `composer.json`.
|
||||
```json
|
||||
{
|
||||
"name": "app/cms-website",
|
||||
"require": {
|
||||
"silverstripe/cms": "3.6.5@stable",
|
||||
"silverstripe/framework": "3.6.5@stable",
|
||||
"silverstripe/reports": "3.6.5@stable",
|
||||
"silverstripe/siteconfig": "3.6.5@stable"
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
After switching to SilverStripe 4 and explicitly defining your dependencies, the `composer.json` file should look like this.
|
||||
```json
|
||||
{
|
||||
"name": "app/cms-website",
|
||||
"require": {
|
||||
"silverstripe/cms": "~4.1.0",
|
||||
"silverstripe/framework": "~4.1.0",
|
||||
"silverstripe/reports": "~4.1.0",
|
||||
"silverstripe/siteconfig": "~4.1.0",
|
||||
"silverstripe/admin": "~1.1.0",
|
||||
"silverstripe/asset-admin": "~1.1.0",
|
||||
"silverstripe/campaign-admin": "~1.1.0",
|
||||
"silverstripe/errorpage": "~1.1.0",
|
||||
"silverstripe/graphql": "~1.1.0",
|
||||
"silverstripe/versioned": "~1.1.0"
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
#### Updating third party dependencies
|
||||
If you project requires third party modules, you'll need to adjust their associated constraint. This will allow you to retrieve a SilverStripe 4 compatible version of the module.
|
||||
|
||||
[Look up the module on Packagist](https://packagist.org/) to see if a SilverStripe 4 version is provided.
|
||||
|
||||
Take for example the following SilverStripe 3 `composer.json`.
|
||||
```json
|
||||
{
|
||||
"name": "app/cms-website",
|
||||
"require": {
|
||||
"silverstripe/framework": "3.6.5@stable",
|
||||
"silverstripe/cms": "3.6.5@stable",
|
||||
"dnadesign/silverstripe-elemental": "^1.8.0"
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
Looking at the [Packagist entry for `dnadesign/silverstripe-elemental`](https://packagist.org/packages/dnadesign/silverstripe-elemental#2.0.0), you can see that versions 2.0.0 and above of this module are compatible with SilverStripe 4. So you can update that constraint to `^2.0.0`.
|
||||
|
||||
Alternatively, you can set a very permissive constraint and let composer find a SilverStripe 4 compatible version. After you're done updating your dependencies, make sure you adjust your constraints to be more specific.
|
||||
|
||||
Once you've updated your third-party modules constraints, try updating your dependencies by running `composer update`. If composer can't resolve all your dependencies it will throw an error.
|
||||
|
||||
### Resolving conflicts
|
||||
|
||||
You'll likely have some conflicts to resolve, whether you've updated your dependencies with the upgrader or manually.
|
||||
|
||||
Running a `composer update` will tell you which modules are conflicted and suggested alternative combinations of modules that might work.
|
||||
|
||||
The most typical reason for a conflict is that the maintainer of a module hasn't released a version compatible with SilverStripe 4.
|
||||
|
||||
If the maintainer of the module is in the process of upgrading to SilverStripe 4, a development version of the module might be available. In some cases, it can be worthwhile to look up the repository of the module or to reach out to the maintainer.
|
||||
|
||||
<div class="info" markdown="1">
|
||||
If you're going to install development version of third party modules, you should consider adding the following entries to your `composer.json` file.
|
||||
|
||||
```json
|
||||
{
|
||||
// ...
|
||||
"minimum-stability": "dev",
|
||||
"prefer-stable": true,
|
||||
// ...
|
||||
}
|
||||
```
|
||||
</div>
|
||||
|
||||
To resolve a conflict you can either:
|
||||
* fork the affected module and upgrade it yourself. Don't forget to send a pull request to the original module!
|
||||
* Integrate the affected module into your project's codebase
|
||||
* Remove the module from your project, if it is not essential
|
||||
|
||||
To integrate a third party module in your project, remove it from your `composer.json` file and from your `.gitignore` file. Then track the module's codebase in your project source control. You'll need to upgrade the module's code to be compatible with SilverStripe 4.
|
||||
|
||||
<div class="info" markdown="1">
|
||||
If you're taking the time to upgrade a third party module, consider doing a pull request against the original project so other developers can benefit from your work or releasing your fork as a seperate module.
|
||||
|
||||
[Learn about how to publish a SilverStripe module](/developer_guides/extending/how_tos/publish_a_module)
|
||||
</div>
|
||||
|
||||
### Finalising your dependency upgrade
|
||||
|
||||
Once you've resolved all conflicts in your `composer.json` file, `composer update` will be able to run without errors.
|
||||
|
||||
This will install your new dependencies. You'll notice many of the folders in the root of your project will disappear. That's because SilverStripe 4 modules can be installed in the vendor folder like generic PHP packages.
|
||||
|
||||
If you've decided to use recipes, some generic files will be copied from the recipe into your project. The `extra` attribute in your `composer.json` file will be updated to keep track of those new files.
|
||||
|
||||
This is a good point to commit your changes to your source control system before moving on to the next step.
|
||||
|
||||
## Step 2 - Update your environment configuration {#env}{#step2}
|
||||
|
||||
The php configuration `_ss_environment.php` file has been replaced with a non-executable
|
||||
`.env` file. It follows a syntax similar to a `.ini` file for key/value pair assignment. Your `.env` file may be placed in your project root, or one level above your project root ([details](/getting_started/environment_management/))
|
||||
|
||||
### Automatically convert `_ss_environment.php` to `.env`
|
||||
|
||||
If you have installed the upgrader tool, you can use the `environment` command to generate a valid `.env` file from your existing `_ss_environment.php` file.
|
||||
|
||||
```bash
|
||||
upgrade-code environment --write
|
||||
```
|
||||
|
||||
Read the [upgrader `environment` command documentation](https://github.com/silverstripe/silverstripe-upgrader/blob/master/docs/en/environment.md)
|
||||
for more details.
|
||||
If your `_ss_environment.php` file contains unusual logic (conditional statements or loops), you will get a warning. `upgrade-code` will still try to convert the file, but you should double-check the output. Omit the `--write` flag to do a dry-run.
|
||||
|
||||
## Using the upgrader tool
|
||||
[Continue to "Cleaning up `mysite/_config.php`"](#env-config-cleanup)
|
||||
|
||||
We've developed [an upgrader tool](https://github.com/silverstripe/silverstripe-upgrader) which you can use to help
|
||||
with the upgrade process to SilverStripe 4. See the README documentation in the repository for more detailed
|
||||
instructions on how to use it.
|
||||
### Manually convert `_ss_environment.php` to `.env`
|
||||
|
||||
Create a `.env` file in the root of your project. Replace `define` statements from `_ss_environment.php` with `KEY=VALUE` pairs in `.env`.
|
||||
|
||||
### `index.php` and `.htaccess` rewrites
|
||||
Most SilverStripe 3 environment variables have been carried over to SilverStripe 4. See [Environment Management docs](/getting_started/environment_management/) for the full list of available variables. Your `.env` file can contain environment variables specific to your project as well.
|
||||
|
||||
The location of SilverStripe's "entry file" has changed. Your project and server environment will need
|
||||
to adjust the path to this file from `framework/main.php` to `public/index.php`.
|
||||
The global array `$_FILE_TO_URL_MAPPING` has been removed and replaced with the `SS_BASE_URL` environment variable. `SS_BASE_URL` expects an absolute url with an optional protocol. The following are values would be valid entries for `SS_BASE_URL`:
|
||||
* `http://localhost/`
|
||||
* `https://localhost/`
|
||||
* `//localhost/`
|
||||
|
||||
For more details, please read through the [`index.php` and `.htaccess` rewrites section](/changelogs/4.0.0#index-php-rewrites)
|
||||
For example, take the following `_ss_environment.php` file.
|
||||
```php
|
||||
<?php
|
||||
// Environment
|
||||
define('SS_ENVIRONMENT_TYPE', 'dev');
|
||||
define('SS_DEFAULT_ADMIN_USERNAME', 'admin');
|
||||
define('SS_DEFAULT_ADMIN_PASSWORD', 'password');
|
||||
$_FILE_TO_URL_MAPPING[__DIR__] = 'http://localhost';
|
||||
|
||||
After installing, run the upgrader doctor command:
|
||||
|
||||
```
|
||||
cd ~/my-project-root
|
||||
upgrade-code doctor
|
||||
// Database
|
||||
define('SS_DATABASE_CHOOSE_NAME', true);
|
||||
define('SS_DATABASE_CLASS', 'MySQLDatabase');
|
||||
define('SS_DATABASE_USERNAME', 'root');
|
||||
define('SS_DATABASE_PASSWORD', '');
|
||||
define('SS_DATABASE_SERVER', '127.0.0.1');
|
||||
```
|
||||
|
||||
This will ensure that your `.htaccess` and `index.php` are set to a reasonable default value for a clean installation.
|
||||
The equivalent `.env` file will look like this.
|
||||
```bash
|
||||
## Environment
|
||||
SS_ENVIRONMENT_TYPE="dev"
|
||||
SS_DEFAULT_ADMIN_USERNAME="admin"
|
||||
SS_DEFAULT_ADMIN_PASSWORD="password"
|
||||
SS_BASE_URL="http://localhost/"
|
||||
|
||||
### Renamed and namespaced classes
|
||||
|
||||
Nearly all core PHP classes in SilverStripe have been namespaced. For example, `DataObject` is now called `SilverStripe\ORM\DataObject`.
|
||||
|
||||
For a full list of renamed classes, check the `.upgrade.yml` definitions in each module.
|
||||
|
||||
After installing, run the upgrader upgrade command:
|
||||
```
|
||||
cd ~/my-project-root
|
||||
~/.composer/vendor/bin/upgrade-code upgrade ./app/src --write
|
||||
## Database
|
||||
SS_DATABASE_CHOOSE_NAME="true"
|
||||
SS_DATABASE_CLASS="MySQLDatabase"
|
||||
SS_DATABASE_USERNAME="root"
|
||||
SS_DATABASE_PASSWORD=""
|
||||
SS_DATABASE_SERVER="127.0.0.1"
|
||||
```
|
||||
|
||||
### Switching to new `app/src` structure
|
||||
### Cleaning up `mysite/_config.php` after your environment configuration upgrade {#env-config-cleanup}
|
||||
|
||||
The `reorganise` command can automatically rename the `mysite` and `code` folder for you. It will search your code and find any occurence of `mysite`. It won't replace those occurence with `app` however.
|
||||
Regardless if you've used the automated or manual path,
|
||||
you'll need to clean up your `mysite/_config.php` file after upgrading your environment file.
|
||||
|
||||
After installing, run the upgrader reorganise command:
|
||||
```
|
||||
cd ~/my-project-root
|
||||
~/.composer/vendor/bin/upgrade-code reorganise --write
|
||||
The global values `$database` and `$databaseConfig` have been deprecated. Your database configuration details should be stored in your `.env` file. If you want to keep your database configuration in `_config.php`, you can use the new `DB::setConfig()` api, however this is discouraged.
|
||||
|
||||
Requiring `conf/ConfigureFromEnv.php` is is no longer necessary. You should remove any references to it in `_config.php`.
|
||||
|
||||
The removal of the `_ss_environment.php` file means that conditional logic is no longer available in the environment
|
||||
variable set-up process. This encouraged bad practice and should be avoided. If you still require conditional logic early in the bootstrap, this is best placed in the `_config.php` files.
|
||||
|
||||
To access environment variables, use the `SilverStripe\Core\Environment::getEnv()` method. To define environment variables, use the `SilverStripe\Core\Environment::setEnv()` method.
|
||||
|
||||
### Finalising your environment upgrade
|
||||
It's inadvisable to track your `.env` file in your source control system as it might contain sensitive information.
|
||||
|
||||
You should ignore the `.env` file by adding an entry to your `.gitignore` file. You can create a sample environment configuration by duplicating your `.env` file as `.env.sample`, and removing sensitive information from it. You can safely delete your legacy `_ss_environement.php` if you want.
|
||||
|
||||
This is a good point to commit your changes to your source control system before moving on to the next step.
|
||||
|
||||
## Step 3 - Namespacing your project (optional) {#step3}
|
||||
|
||||
Namespacing your code is an optional step. It is recommended and will help future-proof your code base.
|
||||
Read more about [PHP Namespaces](http://php.net/manual/en/language.namespaces.php)
|
||||
and the [PSR-4 Autoloader Standard](https://www.php-fig.org/psr/psr-4/).
|
||||
|
||||
### Before you start namespacing your codebase
|
||||
|
||||
You need to choose a root namespace for your project. We recommend following the `Vendor\Package` pattern.
|
||||
The `Page` and `PageController` classes *must* be defined in the global namespace (or without a namespace).
|
||||
|
||||
If you want your codebase to comply with the PSR-4 standard, make sure sub-directories of your code folder are using the _UpperCamelCase_ naming convention. For example, `mysite/code/page_types` should be renamed to `mysite/code/PageTypes`.
|
||||
|
||||
### Automatically namespacing your codebase with the upgrader
|
||||
|
||||
The `add-namespace` command of the [upgrader tool](https://github.com/silverstripe/silverstripe-upgrader/) provides a feature
|
||||
to namespace your codebase and to automatic update references to those classes.
|
||||
|
||||
```bash
|
||||
upgrade-code add-namespace "App\\Web" ./mysite/code --recursive --write
|
||||
```
|
||||
|
||||
## Migrating files
|
||||
This task will do the following:
|
||||
* Add the given namespace to all files in the code class, and subdirectories
|
||||
* All references to classes in any namespaced files will be safely retained with additional `use` directives added as necessary
|
||||
* A `mysite/.upgrade.yml` file will be created/updated to record the new fully qualified name of each class.
|
||||
This will be used in later steps to update references to the outdated class names in your own project code.
|
||||
|
||||
Since the structure of `File` dataobjects has changed, a new task `MigrateFileTask`
|
||||
By default, the same namespace will be applied to all your classes regardless of which directory they are in. If you want to apply different namespaces to different folders to be compliant with PSR-4, combine the `--recursive` with the `--psr4`. Your folder structure has to be PSR4 compliant for this to work. If you want to do a dry-run, omit the `--write` option to see a preview of all changed project files.
|
||||
|
||||
[Continue to Step 4](#step4)
|
||||
|
||||
### Manually namespacing your codebase
|
||||
|
||||
Go through each PHP file under `mysite/code` and add a `namespace` statement at the top, *with the exception of the files for `Page` or `PageController`*.
|
||||
|
||||
Take for example this SilverStripe 3 file located at `mysite/code/Products/ExplosiveTennisBall.php`.
|
||||
```php
|
||||
<?php
|
||||
|
||||
class ExplosiveTennisBall extends DataObject
|
||||
{
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
Assuming your root namespace is `App\Web`, the equivalent namespaced file will look like this.
|
||||
```php
|
||||
<?php
|
||||
namespace App\Web\Products;
|
||||
|
||||
class ExplosiveTennisBall extends DataObject
|
||||
{
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
If you intend to use the upgrader to update references to your namespaced classes, you'll need to create a `mysite/.upgrade.yml` file.
|
||||
```yaml
|
||||
mappings:
|
||||
ExplosiveTennisBall: App\Web\Products\ExplosiveTennisBall
|
||||
```
|
||||
|
||||
If you intend to manually update references to your namespaced classes, you'll need to go through each of your file to add `use` statements.
|
||||
|
||||
For example, if `mysite/code/ProductService.php` is using the `ExplosiveTennisBall` class, you'll need to add a use statement at the top of the file just after it's own namespace definition.
|
||||
```php
|
||||
<?php
|
||||
namespace App\Web;
|
||||
|
||||
use App\Web\Products\ExplosiveTennisBall;
|
||||
|
||||
class ProductService
|
||||
{
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
### Enable PSR-4 auto-loading in your `composer.json` file
|
||||
If you have namespaced your project and followed the PSR-4 convention, you have the option to enable PSR-4 auto-loading in your composer.json file.
|
||||
Enabling PSR-4 auto-loading is optional. It will provide better auto-loading of your classes in your development environment and will future proof your code.
|
||||
|
||||
For example, let's say you have defined the following namespaces for the following folders:
|
||||
* `App\Web` for your main application logic contained in `mysite/code`
|
||||
* `App\SubModule` for a secondary module contained in `sub-module/code`
|
||||
* `App\Web\Tests` for your application test suite contained in `mysite/tests`.
|
||||
|
||||
Your `autoload` section in your `composer.json` file should look like this:
|
||||
```json
|
||||
{
|
||||
// ...
|
||||
"autoload": {
|
||||
"psr-4": {
|
||||
"App\\Web\\": "mysite/code",
|
||||
"App\\SubModule\\": "sub-module/code"
|
||||
}
|
||||
},
|
||||
"autoload-dev": {
|
||||
"psr-4": {
|
||||
"App\\Web\\Tests\\": "mysite/tests"
|
||||
}
|
||||
},
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
Read the [Composer schema autoload documentation](https://getcomposer.org/doc/04-schema.md#autoload) for more information about configuring auto-loading in your project.
|
||||
|
||||
### Finalise your project namespacing
|
||||
All your classes should now be fully namespaced.
|
||||
|
||||
Note that applying a namespace to your project will also affect which template file SilverStripe tries to load when rendering certain objects.
|
||||
|
||||
For example, pretend you have a `RoadRunnerPage` class that extends `Page`. In SilverStripe 3, you would define a template for this page in `themes/example/templates/Layout/RoadRunnerPage.ss`. If you decide to move `RoadRunnerPage` to `App\Web\RoadRunnerPage`, you'll need to move the template to `themes/example/templates/App/Web/Layout/RoadRunnerPage.ss`.
|
||||
|
||||
This is a good point to commit your changes to your source control system before moving on to the next step.
|
||||
|
||||
## Step 4 - Update codebase with references to newly namespaced classes {#step4}
|
||||
|
||||
All core PHP classes in SilverStripe 4 have been namespaced. For example, `DataObject` is now called `SilverStripe\ORM\DataObject`. Your project codebase, config files and language files need be updated to reference those newly namespaced classes. This will include explicit references in your PHP code, but also string that contain the name of a class.
|
||||
If you've opted to namespace your own code in the previous step, those references will need to be updated as well.
|
||||
|
||||
### Automatically update namespaced references with the `upgrade` command
|
||||
|
||||
If you've installed the upgrader, you can use the `upgrade` command to update references to namespaced classes.
|
||||
|
||||
The `upgrade` command will update PHP files, YML configuration files, and YML language files.
|
||||
|
||||
Each core SilverStripe 4 module includes a `.upgrade.yml` that defines the equivalent fully qualified name of each class. Most third party SilverStripe modules that have been upgraded to be compatible with SilverStripe 4, also include a `.upgrade.yml`. If you've namespaced your own project, you'll need to provide your own `.upgrade.yml` file . If you've used the upgrader to namespace your project, that file will have been created for you.
|
||||
|
||||
The `upgrade` command will try to update some strings that reference the old name of some classes. In some cases this might not be what you want. You can tell the upgrader to skip specific strings by using the `@skipUpgrade` flag in your PHPDoc comment. For example:
|
||||
|
||||
```PHP
|
||||
/** @skipUpgrade */
|
||||
return Injector::inst()->get('ProductService');
|
||||
```
|
||||
|
||||
Execute the upgrade command with this command.
|
||||
|
||||
```bash
|
||||
upgrade-code upgrade ./mysite/ --write
|
||||
```
|
||||
|
||||
If you omit the `--write` flag you will get a preview of what change the upgrader will apply to your codebase. This can be helpful if you if you are tweaking your `.upgrade.yml` or if you are trying to identify areas where you should add a `@skipUpgrade` statement,
|
||||
|
||||
You can also tweak which rules to apply with the `--rule` flag: `code`, `config`, and `lang`. For example, the following command will only upgrade `lang` and `config` files:
|
||||
```bash
|
||||
upgrade-code upgrade ./mysite/ --rule=config --rule=lang
|
||||
```
|
||||
|
||||
The `upgrade` command can alter big chunks of your codebase. While it works reasonably well in most use case, you should not trust it blindly. You should take time to review all changes applied by the `upgrade` command and confirm you are happy with them.
|
||||
|
||||
[Continue to "Finalising namespace updates"](#namespace-finalise)
|
||||
|
||||
### Manually update namespaced references
|
||||
|
||||
If you decide to update your namespace references by hand, you'll need to go through the entire code base and update them all from the old non-namespaced SilverStripe classes to the new namespaced equivalent. If you are referencing classes from third party modules that have been namespaced, you'll need to update those as well.
|
||||
|
||||
#### Update explicit references to classes in your code
|
||||
|
||||
Wherever your code explicitly references a SilverStripe class, it will need to be updated to the new namespaced equivalent. You can either update the reference to use the fully qualified name of the class or you can add a `use` statement to your file.
|
||||
|
||||
For example take the following SilverStripe 3 class. `DataObject` and `FieldList` need to point to their namespace equivalents.
|
||||
|
||||
```php
|
||||
<?php
|
||||
namespace App\Web\Products;
|
||||
|
||||
class ExplosiveTennisBall extends DataObject
|
||||
{
|
||||
|
||||
public function getCMSFields()
|
||||
{
|
||||
return FieldList::create([]);
|
||||
}
|
||||
|
||||
}
|
||||
```
|
||||
|
||||
You can add `use` statements at the top of your file to reference the fully qualified name of `DataObject` and `FieldList`.
|
||||
|
||||
```php
|
||||
<?php
|
||||
namespace App\Web\Products;
|
||||
|
||||
use SilverStripe\ORM\DataObject;
|
||||
use SilverStripe\Forms\FieldList;
|
||||
|
||||
class ExplosiveTennisBall extends DataObject
|
||||
{
|
||||
// ...
|
||||
```
|
||||
|
||||
Alternatively, you can update the references to the fully qualified names.
|
||||
```php
|
||||
<?php
|
||||
namespace App\Web\Products;
|
||||
|
||||
class ExplosiveTennisBall extends SilverStripe\ORM\DataObject
|
||||
{
|
||||
|
||||
public function getCMSFields()
|
||||
{
|
||||
return SilverStripe\Forms\FieldList::create([]);
|
||||
}
|
||||
|
||||
}
|
||||
```
|
||||
|
||||
#### Update string references to classes
|
||||
|
||||
In many cases, SilverStripe expects to be provided the name of a class as a string. Typical scenarios include:
|
||||
* defining an `has_one` or `has_many` relationship on a DataObject
|
||||
* requesting an instance of class via the Injector
|
||||
* specifying managed models for a `ModelAdmin`.
|
||||
|
||||
Those string need to use the fully qualified name of their matching classes. Take for example the following class.
|
||||
|
||||
```php
|
||||
<?php
|
||||
namespace App\Web\Products;
|
||||
|
||||
use SilverStripe\ORM\DataObject;
|
||||
|
||||
class ExplosiveTennisBall extends DataObject
|
||||
{
|
||||
private static $has_one = [
|
||||
'Thumbnail' => 'Image'
|
||||
];
|
||||
|
||||
private static $has_many = [
|
||||
'Tags' => 'BlogPost'
|
||||
];
|
||||
|
||||
|
||||
public function getShippingCost()
|
||||
{
|
||||
return Injector::inst('ProductService')->calculateCost($this);
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
`Image`, `BlogPost`, and `ProductService` represent classes. Those strings need to be updated to specify the full namespace.
|
||||
|
||||
The best way of achieving this is to use the [`::class` PHP magic class constant](http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.class.class) which will return the fully qualified name of a class.
|
||||
|
||||
Our example could be update to:
|
||||
```php
|
||||
<?php
|
||||
namespace App\Web\Products;
|
||||
|
||||
use SilverStripe\ORM\DataObject;
|
||||
use SilverStripe\Assets\Image;
|
||||
use SilverStripe\Blog\Model\BlogPost;
|
||||
use App\Web\ProductService;
|
||||
|
||||
class ExplosiveTennisBall extends DataObject
|
||||
{
|
||||
private static $has_one = [
|
||||
'Thumbnail' => Image::class
|
||||
];
|
||||
|
||||
private static $has_many = [
|
||||
'Tags' => BlogPost::class
|
||||
];
|
||||
|
||||
|
||||
public function getShippingCost()
|
||||
{
|
||||
return Injector::inst(ProductService::class)->calculateCost($this);
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
Alternatively, you can spell out the full qualified name of each class in a string. For example, `'Image'` would become `'SilverStripe\\Assets\\Image'`. Note the use of the _double backslash_ — this is necessary because the backslash is an escape character.
|
||||
|
||||
#### Update references to classes in your YML config
|
||||
|
||||
YAML configuration files can reference SilverStripe classes. Those references also need to use the fully qualified name of each class.
|
||||
|
||||
Take for example the following SilverStripe 3 YAML configuration file.
|
||||
|
||||
```yaml
|
||||
Injector:
|
||||
ProductService:
|
||||
properties:
|
||||
RoadRunnerSpeed: 99999999
|
||||
CoyoteSpeed: 1
|
||||
|
||||
BlogPost:
|
||||
extensions:
|
||||
- HasOneExplosiveTennisBallExtension
|
||||
|
||||
Email:
|
||||
admin_email: no-reply@example.com
|
||||
```
|
||||
|
||||
In SilverStripe 4, this will become:
|
||||
```yaml
|
||||
SilverStripe\Core\Injector\Injector:
|
||||
App\Web\ProductService:
|
||||
properties:
|
||||
RoadRunnerSpeed: 99999999
|
||||
CoyoteSpeed: 1
|
||||
|
||||
SilverStripe\Blog\Model\BlogPost:
|
||||
extensions:
|
||||
- App\Web\Extensions\HasOneExplosiveTennisBallExtension
|
||||
|
||||
SilverStripe\Control\Email\Email:
|
||||
admin_email: no-reply@example.com
|
||||
```
|
||||
|
||||
#### Update references to classes in your language files
|
||||
|
||||
Translation keys are normally tied to classes. If you override SilverStripe's default translation or if you are localising your own project, you'll need to update those references to use the fully qualified name of each class.
|
||||
|
||||
For example, let's say you had the following translation file in `mysite/lang/eng.yml`.
|
||||
```yaml
|
||||
en:
|
||||
Member:
|
||||
SINGULARNAME: Coyote
|
||||
RoadRunner:
|
||||
SALUTATION: Beep Beep
|
||||
```
|
||||
|
||||
In SilverStripe 4, it would become:
|
||||
```yaml
|
||||
en:
|
||||
SilverStripe\Security\Member:
|
||||
SINGULARNAME: Coyote
|
||||
App\Web\RoadRunner:
|
||||
SALUTATION: Beep Beep
|
||||
```
|
||||
|
||||
### Finalising namespace updates {#namespace-finalise}
|
||||
You'll need to perform the following steps manually, even if you've used the automated rewrite of namespaces.
|
||||
|
||||
DataObject database tables will default to use a namespaced name. For example, if you have a class under `App\Web\Products\ExplosiveTennisBall` that extends `DataObject`, the matching table in your database will be called `App_Web_Products_ExplosiveTennisBall`.
|
||||
You can define a `private static $table_name` property on your DataObjects to use more convenient table names.
|
||||
For example, `private static $table_name = 'ExplosiveTennisBall';`.
|
||||
|
||||
In your PHP code, calls to the `_t()` method should be updated to use the full namespace of the target class.
|
||||
|
||||
```php
|
||||
<?php
|
||||
|
||||
# Old SilverStripe 3 way
|
||||
$translation = _t('CMSMain.ACCESS', "Access to ''{title}'' section", ['title' => 'Products']);
|
||||
|
||||
# New SilverStripe 4
|
||||
use SilverStripe\CMS\Controllers\CMSMain;
|
||||
// ...
|
||||
$translation = _t(CMSMain::class .'.ACCESS', "Access to ''{title}'' section", ['title' => 'Products']);
|
||||
```
|
||||
|
||||
If you're calling `_t()` to retrieve a translation for the current class, you can also use `__CLASS__` or `self::class`. For example:
|
||||
```php
|
||||
<?php
|
||||
namespace App\Web\Services;
|
||||
|
||||
class ProductService
|
||||
{
|
||||
public function getTranslation()
|
||||
{
|
||||
# Those two lines are equivalent.
|
||||
$translation = _t(__CLASS__ . '.PRODUCT', 'Product');
|
||||
$translation = _t(self::class . '.PRODUCT', 'Product');
|
||||
return $translation;
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
<div class="warning" markdown="1">
|
||||
Avoid using `static::class` or `parent::class` to retrieve translated string. It will retrieve unpredictable values bases on the class inheritance.
|
||||
</div>
|
||||
|
||||
If your template files contain translatable strings, they also need to be updated to referenced the namespaced classes.
|
||||
For example, `<%t Member.SINGULARNAME 'Member' %>` would become `<%t SilverStripe\Security\Member.SINGULARNAME 'Member' %>`.
|
||||
|
||||
Your codebase should now be referencing valid SilverStripe 4 classes. This means that your classes can be loaded at runtime. However, your codebase will still be using an outdated API.
|
||||
This is a good point to commit your changes to your source control system before moving on to the next step.
|
||||
|
||||
## Step 5 - Updating your codebase to use SilverStripe 4 API {#step5}
|
||||
|
||||
This is the most intricate and potentially time-consuming part of the upgrade. It involves going through your entire codebase to remove references to deprecated APIs and update your project logic.
|
||||
|
||||
### Automatically update deprecated API references with the `inspect` command
|
||||
|
||||
The upgrader has an `inspect` command that can flag deprecated API usage, and in some cases, update your codebase to the SilverStripe 4 equivalent. This does require you to carefully review each change and warning to make sure the updated logic still work as intended. Even so, it is a huge time-saver compared to reviewing your code base manually.
|
||||
|
||||
Note that the `inspect` command loads your files with PHP interpreter. So basic syntax errors — for example, extending a class that does not exists — will cause an immediate failure. For this reason, you need to complete [Step 4 - Update codebase with references to newly namespaced classes](#step4) before running the `inspect` command.
|
||||
|
||||
```bash
|
||||
upgrade-code inspect ./mysite/ --write
|
||||
```
|
||||
|
||||
You can omit the `--write` flag if you just want to view the proposed changes without applying them. You can run the command on a specific subdirectory or file. This can be more manageable if you have a big project to go through.
|
||||
|
||||
Like the `upgrade` command, `inspect` gets its list of API changes from `.upgrade.yml` files. So you may get upgrade suggestions and substitution from third party modules. You can even include your own project specific changes in your `.upgrade.yml` if you want.
|
||||
|
||||
#### Sample output of the `inspect` command
|
||||
Here's some sample output of what you might get back the `inspect` command.
|
||||
|
||||
```bash
|
||||
upgrade-code inspect ./mysite/Models/Coyote.php
|
||||
|
||||
Running post-upgrade on "/var/www/SS_example/mysite/code/Models/Coyote.php"
|
||||
[2018-06-06 13:35:38] Applying ApiChangeWarningsRule to Coyote.php...
|
||||
modified: Coyote.php
|
||||
@@ -68,7 +68,7 @@
|
||||
{
|
||||
// Getting a reference to Coyote's list of crazy ideas
|
||||
- $manyManyRelation = $this->manyManyComponent('CrazyIdeas');
|
||||
+ $manyManyRelation = $this->getSchema()->manyManyComponent('CrazyIdeas');
|
||||
return $manyManyRelation;
|
||||
}
|
||||
|
||||
Warnings for Coyote.php:
|
||||
- Coyote.php:20 SS_Cache: Using symfony/cache now (https://docs.silverstripe.org/en/4/changelogs/4.0.0#cache)
|
||||
- Coyote.php:42 SilverStripe\Control\Director::setUrlParams(): Method removed
|
||||
- Coyote.php:71 SilverStripe\ORM\DataObject->manyManyComponent(): DataObject->manyManyComponent() moved to DataObjectSchema. Access through getSchema(). You must manually add static::class as the first argument to manyManyComponent()
|
||||
Changes not saved; Run with --write to commit to disk
|
||||
```
|
||||
|
||||
### Manually update deprecated API references
|
||||
|
||||
SilverStripe 4 introduces many API changes. To update deprecated API references manually, you have to go through each one of your project files.
|
||||
Read the changelogs for [4.0.0](/changelogs/4.0.0/), [4.1.0](/changelogs/4.1.0/) and [4.2.0](/changelogs/4.2.0/)
|
||||
for a comprehensive overview.
|
||||
|
||||
### Finalising the deprecated API update
|
||||
At this stage, your site should be using only SilverStripe 4 API logic.
|
||||
|
||||
You still have some minor clean up tasks and configuration tweaks to apply, but you're almost done.
|
||||
|
||||
This is a good point to commit your changes to your source control system before moving on to the next step.
|
||||
|
||||
## Step 6 - Update your entry point {#step6}
|
||||
The location of SilverStripe's _entry file_ has changed. Your project and server environment will need
|
||||
to adjust the path to this file from `framework/main.php` to `index.php`.
|
||||
|
||||
### Update your `index.php` file
|
||||
You can get a copy of the SilverStripe 4 `index.php` file at
|
||||
`vendor/silverstripe/recipe-core/public/index.php`.
|
||||
|
||||
If you've created your own `index.php` or modified version of `main.php`,
|
||||
you'll need to reconcile those changes with the `index.php` file you got from `recipe-core`.
|
||||
Otherwise, just use the generic `index.php` file `recipe-core` provides.
|
||||
|
||||
Copy your new `index.php` to your project's web root. Unlike SilverStripe 3, `index.php` must be present in your web root.
|
||||
|
||||
### Update your server configuration
|
||||
If you're using a `.htaccess` file or `web.config` file to handle your server configuration, you can get the generic SilverStripe 4 version of those file from
|
||||
`vendor/silverstripe/recipe-core/public`.
|
||||
|
||||
Just like `index.php`, if you've modified your server configuration file from the one that shipped with SilverStripe 3, you'll need to reconcile your changes into the version retrieve from `recipe-core`.
|
||||
|
||||
[Refer to the installation instruction for your platform](/getting_started/installation/) if your server configuration is not managed via a `.htaccess` or `web.config` file.
|
||||
|
||||
### Finalising the entry point upgrade
|
||||
|
||||
At this stage, you could in theory run your project in SilverStripe 4.
|
||||
|
||||
This is a good point to commit your changes to your source control system before moving on to the next step.
|
||||
|
||||
## Step 7 - Update project structure (optional) {#step7}
|
||||
SilverStripe 4 introduces a new recommended project structure ([details](/changelogs/4.2.0#app-folder-name)).
|
||||
Adopting the recommended project structure is optional, but will become mandatory in SilverStripe 5.
|
||||
|
||||
[Skip to Step 8](#step8)
|
||||
|
||||
### Automatically switch to the new structure with the `reorganise` command
|
||||
The reorganise command can automatically update your project to use the new recommended structure.
|
||||
|
||||
It will search your code and find any occurrence of `mysite`. It won't replace those occurrence with `app` however.
|
||||
|
||||
```bash
|
||||
upgrade-code reorganise --write
|
||||
```
|
||||
|
||||
Omit the `--write` flag if you just want to preview your changes
|
||||
|
||||
### Manually switch to the new structure
|
||||
|
||||
Simply rename your `mysite` fold to `app`. Then rename `app/code` to `app/src`.
|
||||
|
||||
### Finalising the reorganise structure
|
||||
|
||||
If you've implemented the new PSR-4 auto-loading logic in your `composer.json` file you'll need to update your namespace mapping.
|
||||
|
||||
For example, let's say you had the following autoload attribute in your `composer.json`.
|
||||
```json
|
||||
{
|
||||
// ...
|
||||
"autoload": {
|
||||
"classmap": [
|
||||
"mysite/code/Page.php",
|
||||
"mysite/code/PageController.php"
|
||||
],
|
||||
"psr-4": {
|
||||
"App\\Web\\": "mysite/code/"
|
||||
}
|
||||
},
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
It will become this:
|
||||
```json
|
||||
{
|
||||
// ...
|
||||
"autoload": {
|
||||
"classmap": [
|
||||
"app/src/Page.php",
|
||||
"app/src/PageController.php"
|
||||
],
|
||||
"psr-4": {
|
||||
"App\\Web\\": "app/src/"
|
||||
}
|
||||
},
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
You'll need to update the `project` attribute for your `ModuleManifest` in your `app/src/mysite.yml` file. It should now look something like this:
|
||||
```yaml
|
||||
SilverStripe\Core\Manifest\ModuleManifest:
|
||||
project: app
|
||||
```
|
||||
|
||||
At this stage, your project should be functional with the recommended project structure.
|
||||
Note, that if you've explicitly reference any static assets (images, css, js) under `mysite`, you'll need to rewrite those references.
|
||||
|
||||
This is a good point to commit your changes to your source control system before moving on to the next step.
|
||||
|
||||
## Step 8 - Switch to public web-root (optional){#step8}
|
||||
|
||||
SilverStripe 4.1 introduces the concept of _public web-root_ this allows you to move
|
||||
all publicly accessible assets under a `public` folder ([details](/changelogs/4.1.0#public-folder)).
|
||||
This has security benefits as it minimises the possibility that files that are not meant to be access directly get accidentally exposed.
|
||||
|
||||
This step is optional and requires SilverStripe 4.1 or greater. It will become mandatory in SilverStripe 5.
|
||||
|
||||
[Skip to Step 9](#step9)
|
||||
|
||||
### Automatically switch to the public web root
|
||||
|
||||
The `webroot` upgrader command will automatically move your files for you.
|
||||
|
||||
```bash
|
||||
upgrade-code webroot --write
|
||||
```
|
||||
|
||||
Omit the `--write` flag if you want to preview the change.
|
||||
|
||||
If you are using a modified `index.php`, `.htaccess`, or `web.config`, you will get a warning.
|
||||
|
||||
### Manually switch to using the public web root
|
||||
* Create a `public` folder in the root of your project
|
||||
* Move the following files and folder to your new public folder
|
||||
* `index.php`
|
||||
* `.htaccess`
|
||||
* `webconfig.php`
|
||||
* `assets`
|
||||
* Any `favicon` files
|
||||
* Other common files that should be accssible in your project webroot (example: `robots.txt`)
|
||||
* Delete the root `resources` directory if present.
|
||||
* Run the following command `composer vendor-expose` to make static assets files accessible via the `public` directory.
|
||||
|
||||
If you are upgrading from SilverStripe 4.0 to SilverStripe 4.1 (or above), you'll need to update `index.php` before moving it to the public folder. You can get a copy of the generic `index.php` file from `vendor/silverstripe/recipe-core/public`. If you've made modifications to your `index.php` file, you'll need to replicate those into the new `public/index.php` file.
|
||||
|
||||
### Finalising the web root migration
|
||||
You'll need to update your server configuration to point to the public directory rather than the root of your project.
|
||||
Update your `.gitignore` file so `assets` and `resources` are still ignored when located under the `public` folder.
|
||||
Your project should still be functional, although you may now be missing some static assets.
|
||||
|
||||
This is a good point to commit your changes to your source control system before moving on to the next step.
|
||||
|
||||
## Step 9 - Move away from hardcoded paths for referencing static assets {#step9}
|
||||
|
||||
SilverStripe 4 introduces a new way to reference static assets like images and css.
|
||||
This enable innovations like moving SilverStripe module [vendor folder](/changelogs/4.0.0#vendor-folder) or the [public web root](/changelogs/4.1.0#public-folder).
|
||||
|
||||
This change is mandatory if you've completed either
|
||||
[step 7](#step7) (update project structure) or [step 8](#step8) (switch to public web-root).
|
||||
If you have skipped these steps, it is strongly recommended, but not mandatory.
|
||||
|
||||
### Exposing your project static assets
|
||||
If you have folders under `app` or `mysite` that need to be accessible for your project's web root, you need to say so in your `composer.json` file by adding an entry under `extra.expose`.
|
||||
|
||||
For example, let's say you have `scripts`, `images` and `css` folders under `app`. You can expose them by adding this content to your `composer.json` file:
|
||||
```json
|
||||
{
|
||||
// ...
|
||||
"extra": {
|
||||
"branch-alias": {
|
||||
"4.x-dev": "4.2.x-dev"
|
||||
},
|
||||
"expose": [
|
||||
"app/scripts",
|
||||
"app/images",
|
||||
"app/css"
|
||||
]
|
||||
},
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
For the change to take affect, run the following command: `composer vendor-expose`.
|
||||
|
||||
### Referencing static assets in your PHP code
|
||||
Wherever you would have use an hardcoded path, you can now use the `projectname: path/to/file.css` syntax.
|
||||
|
||||
`projectname` is controlled by the `project` property of `SilverStripe\Core\Manifest\ModuleManifest` in your YML configuration. This configuration file should look like this:
|
||||
```yaml
|
||||
SilverStripe\Core\Manifest\ModuleManifest:
|
||||
project: app
|
||||
```
|
||||
|
||||
To add some javascript and css files to your requirements from your PHP code, you could use this syntax:
|
||||
```php
|
||||
use SilverStripe\View\Requirements;
|
||||
|
||||
# Load your own style and scripts
|
||||
Requirements::css('app: css/styles.css');
|
||||
Requirements::script('app: scripts/client.css');
|
||||
|
||||
# Load some assets from a module.
|
||||
Requirements::script('silverstripe/blog: js/main.bundle.js');
|
||||
```
|
||||
|
||||
You can `SilverStripe\Core\Manifest\ModuleLoader` to get the web path of file.
|
||||
```php
|
||||
ModuleLoader::getModule('app')->getResource('images/road-runner.jpg')->getRelativePath();
|
||||
```
|
||||
|
||||
You can use `SilverStripe\View\ThemeResourceLoader` to access files from your theme:
|
||||
```php
|
||||
$themeFolderPath = ThemeResourceLoader::inst()->getPath('simple');
|
||||
$themesFilePath = ThemeResourceLoader::inst()->findThemedResource('css/styles.css');
|
||||
```
|
||||
|
||||
For classes that expect icons, you can specify theme with:
|
||||
```php
|
||||
class ListingPage extends \Page
|
||||
{
|
||||
private static $icon = 'app: images/sitetree_icon.png';
|
||||
}
|
||||
|
||||
class MyCustomModelAdmin extends \SilverStripe\Admin\ModelAdmin
|
||||
{
|
||||
private static $menu_icon = 'app: images/modeladmin_icon.png';
|
||||
}
|
||||
```
|
||||
|
||||
### Referencing static assets in template files
|
||||
SS template files accept a similar format for referencing static assets. Go through your assets files and remove hardcoded references.
|
||||
|
||||
```html
|
||||
<img src="$ModulePath(app)/images/coyote.png" />
|
||||
<% require css("app: css/styles.css") %>
|
||||
```
|
||||
|
||||
### Finalising removal of hardcoded paths for referencing static assets
|
||||
|
||||
All your assets should be loading properly now.
|
||||
|
||||
This is a good point to commit your changes to your source control system before moving on to the next step.
|
||||
|
||||
|
||||
## Step 10 - Running your upgraded site for the first time {#step10}
|
||||
|
||||
You're almost across the finish line.
|
||||
|
||||
### Run a dev build
|
||||
Run a `dev/build` either on the command line or in your browser.
|
||||
|
||||
```bash
|
||||
./vendor/bin/sake dev/build
|
||||
```
|
||||
|
||||
This should migrate your existing data (non-destructively) to the new SilverStripe 4 structure.
|
||||
|
||||
#### Migrating files
|
||||
|
||||
Since the structure of the `File` DataObject has changed, a new task `MigrateFileTask`
|
||||
has been added to assist in migration of legacy files (see [file migration documentation](/developer_guides/files/file_migration)).
|
||||
|
||||
```
|
||||
$ ./vendor/bin/sake dev/tasks/MigrateFileTask
|
||||
```bash
|
||||
./vendor/bin/sake dev/tasks/MigrateFileTask
|
||||
```
|
||||
|
||||
## Upgrade tips
|
||||
### Any other script that needs running.
|
||||
|
||||
While there's some code we can automatically rewrite, other uses of changed SilverStripe APIs aren't that obvious.
|
||||
You can use our `inspect` to get some hints on where you need to review code manually.
|
||||
Hints will generally point to more detail about a specific upgrade in this guide.
|
||||
This task requires [the upgrader tool](https://github.com/silverstripe/silverstripe-upgrader).
|
||||
|
||||
```
|
||||
~/.composer/vendor/bin/upgrade-code inspect ./mysite
|
||||
```
|
||||
|
||||
These hints only cover a part of the upgrade work, but can serve as a good indicator for where to start.
|
||||
|
||||
If you've already had a look over the changelog, you will see that there are some fundamental changes that need to be implemented to upgrade from 3.x. Here's a couple of the most important ones to consider:
|
||||
|
||||
* PHP 5.6 is now the minimum required version (and up to PHP 7.1.x is supported!).
|
||||
* CMS CSS has been re-developed using Bootstrap 4 as a base.
|
||||
* SilverStripe code _should_ now be [PSR-2 compliant](http://www.php-fig.org/psr/psr-2/). While this is not a requirement, we strongly suggest you switch over now. You can use tools such as [`phpcbf`](https://github.com/squizlabs/PHP_CodeSniffer/wiki/Fixing-Errors-Automatically) to do most of it automatically.
|
||||
* We've also introduced some best practices for module development. [See the Modules article](/developer_guides/extending/modules) for more information.
|
||||
|
||||
## Additional tips easily missed
|
||||
|
||||
[Object class replaced by traits](/changelogs/4.0.0#object-replace)
|
||||
The `Object` class has been superceded by three traits:
|
||||
- `Injectable`: Provides `MyClass::create()` and `MyClass::singleton()`
|
||||
- `Configurable`: Provides `MyClass::config()`
|
||||
- `Extensible`: Provides all methods related to extensions (E.g. add_extension()).
|
||||
`$this->class` no longer recommended, should use `static::class` or `get_class($classObject)` instead.
|
||||
|
||||
[Rewrite literal table names](/changelogs/4.0.0#literal-table-names)
|
||||
Use `$table = SilverStripe\ORM\DataObject::getSchema()->tableForField($model, $field)` instead of `$model` directly.
|
||||
|
||||
[Rewrite literal class names](/changelogs/4.0.0#literal-class-names)
|
||||
For example, referencing the class name `'Member'` should be `Member::class` or if you're in YML config it should be `SilverStripe\Security\Member`.
|
||||
|
||||
[Template locations and references](/changelogs/4.0.0#template-locations)
|
||||
Templates require the folder path inside the templates folder, and Core templates are placed in paths following the class namespace, e.g. `FormField` is now `SilverStripe/Forms/FormField`.
|
||||
When using the `<% include %>` syntax, you can leave out the `Includes` folder in the path.
|
||||
|
||||
[Config settings should be set to `private static`](/changelogs/4.0.0#private-static)
|
||||
We no longer support `public static $config_item` on classes, it now needs to be `private static $config_item`.
|
||||
|
||||
[Module paths can't be hardcoded](/changelogs/4.0.0#module-paths)
|
||||
Modules may not be placed in a deterministic folder (e.g. `/framework`),
|
||||
you should use getters on the [Module](api:SilverStripe\Core\Manifest\Module) object instead.
|
||||
|
||||
Please see the changelogs for more details on ways that the getters on the `Module` object could be used.
|
||||
|
||||
[Adapt tooling to modules in vendor folder](#vendor-folder)
|
||||
SilverStripe modules are now placed in the `vendor` folder like many other composer package.
|
||||
|
||||
Modules need to declare which files need to be exposed via the new [vendor-plugin](https://github.com/silverstripe/vendor-plugin), using symlinks to link to files from the publically accessible `resources` folder.
|
||||
|
||||
[SS_Log replaced with PSR-3 logging](/changelogs/4.0.0#psr3-logging)
|
||||
SilverStripe 4 introduces [PSR-3](http://www.php-fig.org/psr/psr-3/) compatible logger interfaces. Services can access the logger using the LoggerInterface::class service.
|
||||
|
||||
Please see the changelogs for more details on how to implement logging.
|
||||
|
||||
[Upgrade `app/_config.php`](/changelogs/4.0.0#config-php)
|
||||
The globals `$database` and `$databaseConfig` are deprecated. You should upgrade your site `_config.php` files to use the [.env configuration](#env).
|
||||
`conf/ConfigureFromEnv.php` is no longer used, and references to this file should be deleted.
|
||||
|
||||
[Session object removes static methods](/changelogs/4.0.0#session)
|
||||
Session object is no longer statically accessible via `Session::inst()`. Instead, `Session` is a member of the current request.
|
||||
|
||||
[Extensions are now singletons](#extensions-singletons)
|
||||
This means that state stored in private/protected variables are now shared across all objects which use this extension.
|
||||
It is recommended to refactor the variables to be stored against the owner object.
|
||||
|
||||
[Explicit text casting on template variables](/changelogs/4.0.0#template-casting)
|
||||
Calling `$MyField` on a DataObject in templates will by default cast MyField as `Text` which means it will be safely encoded.
|
||||
You can change the casting for this by defining a casting config on the DataObject:
|
||||
```php
|
||||
private static $casting = [
|
||||
'MyField' => 'HTMLText'
|
||||
];
|
||||
```
|
||||
|
||||
|
||||
## Decision Helpers
|
||||
|
||||
How easy will it be to update my project? It's a fair question, and sometimes a difficult one to answer.
|
||||
|
||||
* "Micro" releases (x.y.z) are explicitly backwards compatible, "minor" and "major" releases can deprecate features and change APIs (see our [release process](/contributing/release_process) for details)
|
||||
* If you've made custom branches of SilverStripe core, or any thirdparty module, it's going to be harder to upgrade.
|
||||
* The more custom features you have, the harder it will be to upgrade. You will have to re-test all of those features, and adapt to API changes in core.
|
||||
* Customizations of a well defined type - such as custom page types or custom blog widgets - are going to be easier to upgrade than customisations that modify deep system internals like rewriting SQL queries.
|
||||
|
||||
## Related
|
||||
|
||||
* [Release Announcements](http://groups.google.com/group/silverstripe-announce/)
|
||||
* [Blog posts about releases on silverstripe.org](http://silverstripe.org/blog/tag/release)
|
||||
* [Release Process](../contributing/release_process)
|
||||
Some third party modules may include their own migration tasks. Take a minute to consult the release notes of your third party dependencies to make sure you have miss anything.
|
||||
|
|
|
|||
|
|
@ -3,209 +3,107 @@
|
|||
## Introduction
|
||||
|
||||
This version introduces many breaking changes, which in most projects can be managed through a combination
|
||||
of automatic upgrade processes as well as manual code review. This document reviews these changes and will
|
||||
guide developers in preparing existing 3.x code for compatibility with 4.0
|
||||
of automatic upgrade processes as well as manual code review. This changelogs described all API changes in detail.
|
||||
|
||||
For users upgrading to 4.1.0 please see the specific [4.1.0 upgrading guide](4.1.0.md).
|
||||
Read [Upgrading to SilverStripe 4](/upgrading/) for a detailed step-by-step guide on upgrading your SilverStripe 3 project to SilverStripe 4.
|
||||
It describes how to use an automated [upgrader tool](https://github.com/silverstripe/silverstripe-upgrader)
|
||||
to make the job easier.
|
||||
For users upgrading to later versions, please see the specific [4.1.0](4.1.0) and [4.2.0](4.2.0) changelogs.
|
||||
|
||||
## Overview {#overview}
|
||||
|
||||
* Minimum version dependencies have increased; PHP 5.5 and Internet Explorer 11 (or other modern browser)
|
||||
is required.
|
||||
### General
|
||||
|
||||
* Minimum version dependencies have increased; PHP 5.6 and Internet Explorer 11 (or other modern browser)
|
||||
are required.
|
||||
* All code has been migrated to follow the PSR-2 coding standard. Most significantly, all SilverStripe
|
||||
classes are now namespaced, and some have been renamed. This has major implications for
|
||||
arrangement of templates, as well as other references to classes via string literals or configuration.
|
||||
* All code earlier marked as deprecated for 4.0 has now been removed (check our
|
||||
[deprecation process](/contributing/release_process))
|
||||
* Core modules are installed in the `vendor/` folder by default (other modules can opt-in, see [guide](/developer_guides/extending/how_tos/publish_a_module))
|
||||
* **4.1.0 only** Support for public webroot folder `public/` ([details](4.1.0#public-folder))
|
||||
* All code has been migrated to follow the PSR-2 coding standard. Most significantly, all SilverStripe
|
||||
classes are now namespaced, and some have been renamed. This has major implications for
|
||||
arrangement of templates, as well as other references to classes via string literals or configuration.
|
||||
Automatic upgrading tools have been developed to cope with the bulk of these changes (see
|
||||
[upgrading notes](#upgrading)).
|
||||
* Object class has been replaced with traits ([details](#object-replace)).
|
||||
|
||||
### ORM
|
||||
|
||||
* [Better core support for Versioning](#changeset): Addition of campaigns to allow batches of related
|
||||
or inter-dependent objects to be published as a single "changeset".
|
||||
* [Record ownership and Campaigns](#ownership): Dependencies between versioned objects can be
|
||||
declared using the new ownership API, so that developers can ensure that relational consistency is
|
||||
maintained during publishing
|
||||
This new system can be managed via the new "Campaigns" CMS section ([blog post](https://www.silverstripe.org/blog/campaigns-in-silverstripe-4/))
|
||||
* [Rewrite literal table names](#literal-table-names):
|
||||
Use `$table = SilverStripe\ORM\DataObject::getSchema()->tableForField($model, $field)` instead of `$model` directly.
|
||||
|
||||
### Assets
|
||||
|
||||
* Asset storage has been abstracted, and a new concept of `DBFile` references via database column references
|
||||
now exists in addition to references via the existing `File` dataobject. File security and protected files
|
||||
are now a core feature ([details](#asset-storage))
|
||||
* Asset admin has been replaced with a purely ReactJS powered upgrade, and split out
|
||||
module called [asset-admin](https://github.com/silverstripe/silverstripe-asset-admin/).
|
||||
|
||||
### Framework
|
||||
|
||||
* [Object class replaced by traits](#object-replace):
|
||||
`Injectable`: Provides `MyClass::create()` and `MyClass::singleton()`.
|
||||
`Configurable`: Provides `MyClass::config()`.
|
||||
`Extensible`: Provides all methods related to extensions (E.g. add_extension()).
|
||||
`$this->class` no longer recommended, should use `static::class` or `get_class($classObject)` instead.
|
||||
* [Rewrite literal class names](#literal-class-names):
|
||||
For example, referencing the class name `'Member'` should be `Member::class` or if you're in YML config it should be `SilverStripe\Security\Member`.
|
||||
* [Config settings should be set to `private static`](#private-static):
|
||||
We no longer support `public static $config_item` on classes, it now needs to be `private static $config_item`.
|
||||
* [Module paths can't be hardcoded](#module-paths):
|
||||
Modules may not be placed in a deterministic folder (e.g. `/framework`),
|
||||
you should use getters on the [Module](api:SilverStripe\Core\Manifest\Module) object instead.
|
||||
* [Adapt tooling to modules in vendor folder](#vendor-folder)
|
||||
SilverStripe modules are now placed in the `vendor` folder like many other composer package.
|
||||
* [SS_Log replaced with PSR-3 logging](#psr3-logging)
|
||||
SilverStripe 4 introduces [PSR-3](http://www.php-fig.org/psr/psr-3/) compatible logger interfaces. Services can access the logger using the LoggerInterface::class service.
|
||||
* [Upgrade `mysite/_config.php`](#config-php)
|
||||
The globals `$database` and `$databaseConfig` are deprecated. You should upgrade your site `_config.php` files to use the [.env configuration](#env).
|
||||
`conf/ConfigureFromEnv.php` is no longer used, and references to this file should be deleted.
|
||||
* [Session object removes static methods](#session)
|
||||
Session object is no longer statically accessible via `Session::inst()`. Instead, `Session` is a member of the current request.
|
||||
* [Extensions are now singletons](#extensions-singletons)
|
||||
This means that state stored in private/protected variables are now shared across all objects which use this extension.
|
||||
It is recommended to refactor the variables to be stored against the owner object.
|
||||
* [Removed module path constants](#module-paths) (e.g. `FRAMEWORK_PATH`) and support for hardcoded file paths (e.g. `mysite/css/styles.css`)
|
||||
* [Replaced Zend_Translate](#i18n) with symfony/translation
|
||||
* [Replaced `Zend_Cache`](#cache) and the `Cache` API with a PSR-16 implementation (symfony/cache)
|
||||
* [`_ss_environment.php` files](/upgrading/#env) have been removed in favour of `.env` and "real" environment variables
|
||||
* [Behat support updated to v3](https://github.com/silverstripe/silverstripe-behat-extension)
|
||||
* Dependencies can managed via [recipe-plugin](https://github.com/silverstripe/recipe-plugin). See [recipe-core](https://github.com/silverstripe/recipe-core) and [recipe-cms](https://github.com/silverstripe/recipe-cms) as examples.
|
||||
* [Authentication](#custom-authenticators) has been upgraded to a modular approach using re-usable interfaces and easier to hook in to LoginHandlers
|
||||
* Renamed constant for temp folder from `TEMP_FOLDER` to `TEMP_PATH` for naming consistency with other path variables and constants
|
||||
|
||||
|
||||
### View
|
||||
|
||||
* [Template locations and references](#template-locations):
|
||||
Templates require the folder path inside the templates folder, and Core templates are placed in paths following the class namespace, e.g. `FormField` is now `SilverStripe/Forms/FormField`. When using the `<% include %>` syntax, you can leave out the `Includes` folder in the path.
|
||||
* Modules need to declare which files need to be exposed via the new [vendor-plugin](https://github.com/silverstripe/vendor-plugin),
|
||||
using symlinks to link to files from the publically accessible `resources` folder.
|
||||
* [Explicit text casting on template variables](#template-casting)
|
||||
Calling `$MyField` on a DataObject in templates will by default cast MyField as `Text` which means it will be safely encoded.
|
||||
* Template variable casting (e.g. `<h1>$Title</h1>`) is enforced by default, which will ensure safe HTML encode
|
||||
unless explicitly opted out ([details](#template-casting))
|
||||
* Themes are now configured to cascade, where you can specify a list of themes, and have the template engine
|
||||
search programatically through a prioritised list when resolving template and CSS file paths.
|
||||
* The `GDBackend` and `ImagickBackend` classes have been replaced by a unified `InterventionBackend` which uses the
|
||||
[intervention/image](https://github.com/intervention/image) library to power manipualations.
|
||||
|
||||
### CMS
|
||||
|
||||
* A new front-end development process has been developed for the construction of javascript based components,
|
||||
prominently featuring ReactJS to develop highly functional CMS content areas. A new standard form schema
|
||||
API has been developed to allow back-end PHP constructed forms to scaffold themselves within ReactJS
|
||||
powered sections.
|
||||
* CMS CSS has been re-developed using Bootstrap v4 as a base
|
||||
([blog post](https://www.silverstripe.org/blog/a-frameworks-framework-why-silverstripe-4-will-use-bootstrap/))
|
||||
* Asset admin has been replaced with a purely ReactJS powered upgrade, and split out
|
||||
module called [asset-admin](https://github.com/silverstripe/silverstripe-asset-admin/).
|
||||
* Versioning is now a much more powerful feature, with the addition of campaigns to allow batches of related
|
||||
or inter-dependent objects to be published as a single "changeset" ([details](#changeset)).
|
||||
* Dependencies between versioned objects can be
|
||||
declared using the new ownership API, so that developers can ensure that relational consistency is
|
||||
maintained during publishing ([details](#ownership))
|
||||
This new system can be managed via the new "Campaigns" CMS section ([blog post](https://www.silverstripe.org/blog/campaigns-in-silverstripe-4/))
|
||||
* Template variable casting (e.g. `<h1>$Title</h1>`) is enforced by default, which will ensure safe HTML encode
|
||||
unless explicitly opted out ([details](#template-casting))
|
||||
* Themes are now configured to cascade, where you can specify a list of themes, and have the template engine
|
||||
search programatically through a prioritised list when resolving template and CSS file paths.
|
||||
* Removed module path constants (e.g. `FRAMEWORK_PATH`) and support for hardcoded file paths (e.g. `mysite/css/styles.css`) ([details](#module-paths))
|
||||
* Replaced Zend_Translate with symfony/translation ([details](#i18n))
|
||||
* Replaced `Zend_Cache` and the `Cache` API with a PSR-16 implementation (symfony/cache) ([details](#cache))
|
||||
* `_ss_environment.php` files have been removed in favour of `.env` and "real" environment variables ([details](#env)).
|
||||
* Behat support updated to v3 (
|
||||
[details](https://github.com/silverstripe/silverstripe-behat-extension))
|
||||
* The `GDBackend` and `ImagickBackend` classes have been replaced by a unified `InterventionBackend` which uses the
|
||||
[intervention/image](https://github.com/intervention/image) library to power manipualations.
|
||||
* Dependencies can managed via [recipe-plugin](https://github.com/silverstripe/recipe-plugin). See [recipe-core](https://github.com/silverstripe/recipe-core) and [recipe-cms](https://github.com/silverstripe/recipe-cms) as examples.
|
||||
* Authentication has been upgraded to a modular approach using re-usable interfaces and easier to hook in to LoginHandlers ([details](#custom-authenticators)).
|
||||
* Core modules are installed in the `vendor/` folder by default (other modules can opt-in, see [guide](/developer_guides/extending/how_tos/publish_a_module))
|
||||
* Renamed constant for temp folder from `TEMP_FOLDER` to `TEMP_PATH` for naming consistency with other path variables and constants
|
||||
|
||||
## Upgrading Guide {#upgrading}
|
||||
|
||||
The below sections describe how to go about updating an existing site to be prepared for upgrade to 4.0.
|
||||
Most of these upgrading tasks will involve manual code review, although in some cases there are
|
||||
some automated processes that users can run.
|
||||
|
||||
### Composer dependency update {#deps}
|
||||
|
||||
As a first step, you need to update your composer dependencies.
|
||||
The easiest way is to start with a new `composer.json` file
|
||||
and gradually move over settings from your old one.
|
||||
This way you don't get dependency conflicts with potentially incompatible modules.
|
||||
|
||||
Backup your existing `composer.json` and overwrite it with the following content:
|
||||
|
||||
```json
|
||||
{
|
||||
"name": "myvendor/myproject",
|
||||
"require": {
|
||||
"silverstripe/recipe-cms": "^1.0"
|
||||
},
|
||||
"prefer-stable": true,
|
||||
"minimum-stability": "dev"
|
||||
}
|
||||
```
|
||||
|
||||
This composer file uses the new [recipe](https://github.com/silverstripe/recipe-plugin) approach
|
||||
which bundles all core dependencies in a meta package. If you want more granular control over what gets installed,
|
||||
reading through the README documentation in the [recipe plugin repo](https://github.com/silverstripe/recipe-plugin)
|
||||
and also checking the `composer.json` files in [recipe-core](https://github.com/silverstripe/recipe-core) and
|
||||
[recipe-cms](https://github.com/silverstripe/recipe-cms).
|
||||
|
||||
Now run a `composer update`. This will remove all existing modules from your local codebase
|
||||
since we replaced your project's `composer.json`. Now you can move your modules back
|
||||
one by one, checking for compatible versions on [packagist.org](http://packagist.org).
|
||||
|
||||
Note: If you have issues with a pre-existing composer install you can force a clean re-install with the
|
||||
below commands:
|
||||
|
||||
```bash
|
||||
rm -rf vendor/composer
|
||||
rm composer.lock
|
||||
composer update
|
||||
```
|
||||
|
||||
For modules with stable releases, simply set your composer constraints to the new version
|
||||
(with a [next significant release](https://getcomposer.org/doc/articles/versions.md#next-significant-release-operators) operator).
|
||||
|
||||
```diff
|
||||
{
|
||||
"require": {
|
||||
- "myvendor/compatible-module": "~2.0",
|
||||
+ "myvendor/compatible-module": "~3.0",
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
For modules with a compatible pre-release, use an explicit [stability constraints](https://getcomposer.org/doc/articles/versions.md#stability-constraints).
|
||||
This can be changed to a [next significant release](https://getcomposer.org/doc/articles/versions.md#next-significant-release-operators) operator
|
||||
once the module is stable.
|
||||
|
||||
```diff
|
||||
{
|
||||
"require": {
|
||||
- "myvendor/prerelease-module": "~2.0",
|
||||
+ "myvendor/prerelease-module": "~3.0@dev",
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
For modules that don't have a pre-release branch started, you should raise an issue on the repository asking for 4.0
|
||||
compatibility.
|
||||
For now, you should attempt to continue the upgrade without the module and temporarily disable its functionality.
|
||||
|
||||
### Manual upgrades
|
||||
|
||||
Please follow
|
||||
|
||||
### Environment variables file changed to dotenv {#env}
|
||||
|
||||
The php configuration `_ss_environment.php` file has been replaced in favour of a non-executable
|
||||
`.env` file, which follows a syntax similar to an `.ini` file for key/value pair assignment. Like
|
||||
the old php file, `.env` may be placed in either the web root, or one level above.
|
||||
|
||||
For example, if you have the below `_ss_environment.php` file, your `.env` would be rewritten as follows:
|
||||
|
||||
`_ss_environment.php`:
|
||||
|
||||
|
||||
```php
|
||||
// Environment
|
||||
define('SS_ENVIRONMENT_TYPE', 'dev');
|
||||
define('SS_DEFAULT_ADMIN_USERNAME', 'admin');
|
||||
define('SS_DEFAULT_ADMIN_PASSWORD', 'password');
|
||||
$_FILE_TO_URL_MAPPING[__DIR__] = 'http://localhost';
|
||||
|
||||
// Database
|
||||
define('SS_DATABASE_CHOOSE_NAME', true);
|
||||
define('SS_DATABASE_CLASS', 'MySQLDatabase');
|
||||
define('SS_DATABASE_USERNAME', 'root');
|
||||
define('SS_DATABASE_PASSWORD', '');
|
||||
define('SS_DATABASE_SERVER', '127.0.0.1');
|
||||
```
|
||||
|
||||
`.env`:
|
||||
|
||||
```bash
|
||||
## Environment
|
||||
SS_ENVIRONMENT_TYPE="dev"
|
||||
SS_DEFAULT_ADMIN_USERNAME="admin"
|
||||
SS_DEFAULT_ADMIN_PASSWORD="password"
|
||||
SS_BASE_URL="http://localhost/"
|
||||
|
||||
## Database
|
||||
SS_DATABASE_CHOOSE_NAME="true"
|
||||
SS_DATABASE_CLASS="MySQLDatabase"
|
||||
SS_DATABASE_USERNAME="root"
|
||||
SS_DATABASE_PASSWORD=""
|
||||
SS_DATABASE_SERVER="127.0.0.1"
|
||||
```
|
||||
|
||||
The removal of the `_ss_environment.php` file means that conditional logic is no longer available in the environment
|
||||
variable set-up process. This generally encouraged bad practice and should be avoided. If you still require conditional
|
||||
logic early in the bootstrap, this is best placed in the `_config.php` files.
|
||||
|
||||
Note also that `$_FILE_TO_URL_MAPPING` has been removed and replaced with `SS_BASE_URL` env var.
|
||||
This url must be an absolute url with an optional protocol. The following are valid, for example:
|
||||
|
||||
```
|
||||
SS_BASE_URL="http://localhost/"
|
||||
SS_BASE_URL="https://localhost/"
|
||||
SS_BASE_URL="//localhost/"
|
||||
```
|
||||
|
||||
The global values `$database` and `$databaseConfig` have been deprecated, as has `ConfigureFromEnv.php`
|
||||
which is no longer necessary.
|
||||
|
||||
To access environment variables you can use the `SilverStripe\Core\Environment::getEnv()` method.
|
||||
|
||||
See [Environment Management docs](/getting_started/environment_management/) for full details.
|
||||
|
||||
If you are not able to move your webserver away from using `_ss_environment.php` files, you can use
|
||||
[this example file](https://gist.github.com/robbieaverill/74fbfff6f438c94f6325107e4d7b2a45) and include it at the top
|
||||
of your `mysite/_config.php` file. This will export your constants as environment variables.
|
||||
|
||||
### Using the upgrader tool {#upgrader-tool}
|
||||
|
||||
We've developed [an upgrader tool](https://github.com/silverstripe/silverstripe-upgrader) which you can use to help
|
||||
with the upgrade process to SilverStripe 4. See the README documentation in the repository for more detailed
|
||||
instructions on how to use it.
|
||||
|
||||
## Detailed Changes
|
||||
|
||||
### `index.php` and `.htaccess` rewrites {#index-php-rewrites}
|
||||
|
||||
|
|
@ -219,79 +117,6 @@ please consult the [installation guides](getting_started/installation/).
|
|||
Since 4.0, URL rewrite capabilities are required,
|
||||
unless you use PHP's built-in webserver through [silverstripe/serve](https://github.com/silverstripe/silverstripe-serve).
|
||||
|
||||
The [upgrader tool](https://github.com/silverstripe/silverstripe-upgrader/) has a task runner which
|
||||
automates this process for you.
|
||||
|
||||
After installing, run the upgrader:
|
||||
|
||||
```
|
||||
cd ~/my-project-root
|
||||
upgrade-code doctor
|
||||
```
|
||||
|
||||
This will ensure that your `.htaccess` and `index.php` are set to a reasonable default value
|
||||
for a clean installation. If you have applied customisations to your `.htaccess`
|
||||
file (e.g. a custom `main.php`, HTTP header configuration, deny file access),
|
||||
you'll need to manually reapply these to the copied default file.
|
||||
|
||||
### Renamed and namespaced classes {#namespaced-classes}
|
||||
|
||||
Nearly all core PHP classes in SilverStripe have been namespaced. For example, `DataObject` is now called `SilverStripe\ORM\DataObject`.
|
||||
The below tasks describe how to upgrade an existing site to remain compatible with the newly upgraded classes.
|
||||
We have developed an [upgrader tool](https://github.com/silverstripe/silverstripe-upgrader/) to (semi-)automatically
|
||||
update your 3.x code to the new naming. Here's an example how to upgrade your `mysite` folder:
|
||||
|
||||
```
|
||||
cd ~/my-project-root
|
||||
~/.composer/vendor/bin/upgrade-code upgrade ./mysite --write
|
||||
```
|
||||
|
||||
If you want to do a dry-run, omit the `--write` option to see a preview of a diff of
|
||||
all changed project files.
|
||||
|
||||
This will resolve the majority of upgrading work, but we strongly recommend reviewing the diff
|
||||
running some regression testing on your functionality. SilverStripe core classes can be referenced
|
||||
in your PHP files, but also in YAML configuration and SilverStripe templates.
|
||||
For a full list of renamed classes, check the `.upgrade.yml` definitions in each module.
|
||||
|
||||
The rename won't affect class-based permission codes or database table names.
|
||||
|
||||
### Migrate File DataObject {#migrate-file}
|
||||
|
||||
Since the structure of `File` dataobjects has changed, a new task `MigrateFileTask`
|
||||
has been added to assist in migration of legacy files (see [file migration documentation](/developer_guides/files/file_migration)).
|
||||
|
||||
```
|
||||
$ ./vendor/bin/sake dev/tasks/MigrateFileTask
|
||||
```
|
||||
|
||||
Any `File` in the database with an extension which is not in the `File.allowed_extensions` config will be considered
|
||||
invalid and deleted from the database during migration.
|
||||
|
||||
Any invalid file on the filesystem will not be deleted in the filesystem, but will no longer be recorded in the
|
||||
database, and should be cleaned up manually.
|
||||
|
||||
To disable deleting from the database, set the following config:
|
||||
|
||||
```yaml
|
||||
SilverStripe\Assets\FileMigrationHelper:
|
||||
delete_invalid_files: false
|
||||
```
|
||||
|
||||
### Get upgrade tips on your code {#inspect-hints}
|
||||
|
||||
While there's some code we can automatically rewrite, other uses of changed SilverStripe APIs aren't that obvious.
|
||||
You can use our heuristics to get some hints on where you need to review code manually.
|
||||
Hints will generally point to more detail about a specific upgrade in this guide.
|
||||
This task should be run *after* `upgrade-code upgrade`.
|
||||
|
||||
```
|
||||
~/.composer/vendor/bin/upgrade-code inspect ./mysite
|
||||
```
|
||||
|
||||
These hints only cover a part of the upgrade work,
|
||||
but can serve as a good indicator for where to start.
|
||||
|
||||
### Object class replaced by traits {#object-replace}
|
||||
|
||||
Object has been superseded by traits.
|
||||
|
|
@ -300,7 +125,7 @@ Object has been superseded by traits.
|
|||
- `Configurable`: Provides `MyClass::config()`
|
||||
- `Extensible`: Provides all methods related to extensions (E.g. add_extension()).
|
||||
|
||||
Upgrade subclass use
|
||||
Upgrade subclass use:
|
||||
|
||||
|
||||
```diff
|
||||
|
|
@ -319,7 +144,7 @@ Upgrade subclass use
|
|||
```
|
||||
|
||||
|
||||
Upgrade references to $this->class
|
||||
Upgrade references to `$this->class`:
|
||||
|
||||
```diff
|
||||
-$obj->class
|
||||
|
|
@ -329,14 +154,14 @@ Upgrade references to $this->class
|
|||
+static::class;
|
||||
```
|
||||
|
||||
Upgrade parse_class_spec()
|
||||
Upgrade `parse_class_spec()`:
|
||||
|
||||
```diff
|
||||
-$spec = Object::parse_class_spec($spec);
|
||||
+$spec = ClassInfo::parse_class_spec($spec);
|
||||
```
|
||||
|
||||
Upgrade create_from_string()
|
||||
Upgrade `create_from_string()`:
|
||||
|
||||
|
||||
```diff
|
||||
|
|
@ -616,15 +441,7 @@ SilverStripe\Core\Injector\Injector:
|
|||
`WebDesignGroup\ShopSite\Logging\ErrorPageFormatter` should be a class that
|
||||
implements the `Monolog\Formatter\FormatterInterface` interface.
|
||||
|
||||
### Upgrade `mysite/_config.php` {#config-php}
|
||||
|
||||
The globals `$database` and `$databaseConfig` are deprecated. You should upgrade your
|
||||
site `_config.php` files to use the [.env configuration](#env).
|
||||
|
||||
`conf/ConfigureFromEnv.php` is no longer used, and references to this file should be deleted.
|
||||
|
||||
If you need to configure database details in PHP you should configure these details via `.env` file,
|
||||
or alternatively (but less recommended) use the new `DB::setConfig()` api.
|
||||
### Replace $project with YAML config {#config-php}
|
||||
|
||||
The global `$project` is deprecated in favour of the configuration setting
|
||||
`SilverStripe\Core\Manifest\ModuleManifest.project`.
|
||||
|
|
@ -658,7 +475,6 @@ public function httpSubmission($data, $form, $request)
|
|||
}
|
||||
```
|
||||
|
||||
|
||||
In some places it may still be necessary to access the session object where no request is available.
|
||||
In rare cases it is still possible to access the request of the current controller via
|
||||
`Controller::curr()->getRequest()` to gain access to the current session.
|
||||
|
|
@ -1640,56 +1456,6 @@ will assist you with bringing yourself up to speed.
|
|||
Please note that before upgrading user code style it is necessary to run the standard upgrade path
|
||||
to fix references and usages of framework API.
|
||||
|
||||
#### Upgrading user-code to use namespaces
|
||||
|
||||
Upgrading code to use namespaces is quite a complex process, and as such we have provided
|
||||
several development tools and processes to help make the upgrade user friendly and as
|
||||
automated as possible.
|
||||
|
||||
#### Using the upgrader tool to automatically apply namespaces
|
||||
|
||||
The [upgrader tool](https://github.com/silverstripe/silverstripe-upgrader/) provides a feature
|
||||
to not only automatically namespace code, but will provide automatic upgrade of other code
|
||||
references to those classes.
|
||||
|
||||
Use the below to setup upgrader, and apply a namespace to a given code folder.
|
||||
|
||||
```
|
||||
composer global require silverstripe/upgrader
|
||||
cd ~/Project/Root
|
||||
~/.composer/vendor/bin/upgrade-code add-namespace "WebDesignGroup\ShopSite" ./mysite/code --recursive --write
|
||||
```
|
||||
|
||||
If you want to do a dry-run, omit the `--write` option to see a preview of a diff of
|
||||
all changed project files.
|
||||
|
||||
This task will do the following:
|
||||
|
||||
- Add the given namespace to all files in the code class, and subdirectories.
|
||||
- Sub-namespaces will be applied based on directory structure
|
||||
- All references to classes in any namespaced files will be safely retained with additional `use` directives
|
||||
added as necessary.
|
||||
- Register all namespaced classese in a mysite/.upgrade.yml file for migration of other code
|
||||
|
||||
This task will not do the following, and must be done manually:
|
||||
|
||||
- Adding `table_name` to any namespaced classes
|
||||
- Upgrade other references to namespaced classes outside of this folder
|
||||
- Migrate any database table records
|
||||
|
||||
Please see the following steps for more information.
|
||||
|
||||
#### Using the upgrader tool to update references to namespaced user classes
|
||||
|
||||
Once a project has been namespaced all newly renamed classes will have a mapping included in the `mysite/.upgrade.yml`
|
||||
file. If you have any user-code that references these, you may need to run the upgrader again (as you did did
|
||||
to upgrade your project to namespaced framework classe).
|
||||
|
||||
```
|
||||
composer global require silverstripe/upgrader
|
||||
cd ~/Project/Root
|
||||
~/.composer/vendor/bin/upgrade-code upgrade ./othercode --write
|
||||
```
|
||||
|
||||
#### Updating custom dataobjects to use existing table names
|
||||
|
||||
|
|
|
|||
|
|
@ -7,10 +7,12 @@
|
|||
|
||||
## Upgrading
|
||||
|
||||
Note: if you receive an error message about an undefined constant while
|
||||
upgrading with `composer`, re-running the command should solve the issue.
|
||||
Read [Upgrading to SilverStripe 4](/upgrading/) for a detailed step-by-step guide on upgrading your SilverStripe 3 project to SilverStripe 4.
|
||||
It describes how to use an automated [upgrader tool](https://github.com/silverstripe/silverstripe-upgrader)
|
||||
to make the job easier.
|
||||
Please also note the [4.0.0](4.0.0) and [4.2.0](4.2.0) changelogs for a complete list of changes.
|
||||
|
||||
### Upgrade `public/` folder (optional) {#public-folder}
|
||||
### Use `public/` folder (optional) {#public-folder}
|
||||
|
||||
This release allows the maintenance of a public webroot folder which separates all
|
||||
web-accessible files from protected project files (like the vendor folder
|
||||
|
|
|
|||
|
|
@ -7,10 +7,15 @@
|
|||
|
||||
## Upgrading {#upgrading}
|
||||
|
||||
Read [Upgrading to SilverStripe 4](/upgrading/) for a detailed step-by-step guide on upgrading your SilverStripe 3 project to SilverStripe 4.
|
||||
It describes how to use an automated [upgrader tool](https://github.com/silverstripe/silverstripe-upgrader)
|
||||
to make the job easier.
|
||||
Please also note the [4.0.0](4.0.0) and [4.1.0](4.1.0) changelogs for a complete list of changes.
|
||||
|
||||
### App folder name
|
||||
|
||||
The standard 'mysite' code naming convention has changed in 4.2. Although existing sites can continue
|
||||
to use 'app/code` to store their base project code, the recommendation and new default is to
|
||||
The standard 'mysite' code naming convention has changed. Although existing sites can continue
|
||||
to use 'mysite/code` to store their base project code, the recommendation and new default is to
|
||||
store code in `app/src`.
|
||||
|
||||
Additionally, we reinforce the recommendation to use psr-4 autoloading in your project to speed up
|
||||
|
|
@ -48,7 +53,8 @@ SilverStripe\Core\Manifest\ModuleManifest:
|
|||
|
||||
- Ensure you flush your site with `?flush=all`
|
||||
|
||||
Note: In 5.0 the app folder will be fixed to `app` and cannot be soft-coded via `mysite.yml`
|
||||
Follow our [step-by-step upgrading guide](/upgrading) to perform this change automatically through our `upgrade-code` tool.
|
||||
In 5.0 the app folder will be fixed to `app` and cannot be soft-coded via `mysite.yml`
|
||||
|
||||
### Disable session-based stage setting
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue