5.9 KiB
URL Variable Tools
Introduction
This page lists a number of "page options" , "rendering tools" or "special URL variables" that you can use to debug your SilverStripe applications. These are consumed in PHP using the $_REQUEST or $_GET superglobals throughout the SilverStripe core.
General Usage
Append the option and corresponding value to your URL in your browser's address bar. You may find the Firefox UrlParams extension useful in order to debug a POST requests (Like Forms).
http://yoursite.com/page?option_name=value
http://yoursite.com/page?option_1=value&option_2=value
Templates
| URL Variable | | Values | | Description | | ------------ | | ------ | | ----------- | | flush | | 1,all | | This will clear out all cached information about the page. This is used frequently during development - for example, when adding new PHP or SS files. See below for value descriptions. | | showtemplate | | 1 | | Show the compiled version of all the templates used, including line numbers. Good when you have a syntax error in a template. Cannot be used on a Live site without isDev. flush can be used with the following values: | | ?flush=1 | | | | Flushes the current page and included templates | | ?flush=all | | | | Flushes the entire template cache |
General Testing
| URL Variable | | Values | | Description |
| ------------ | | ------ | | ----------- |
| isDev | | 1 | | Put the site into development mode, enabling debugging messages to the browser on a live server. For security, you'll be asked to log in with an administrator log-in. Will persist for the current browser session. |
| isTest | | 1 | | See above. |
| debug | | 1 | | Show a collection of debugging information about the director / controller operation |
| debug_request | | 1 | | Show all steps of the request from initial [api:HTTPRequest] to [api:Controller] to Template Rendering |
Classes and Objects
| URL Variable | | Values | | Description | | ------------ | | ------ | | ----------- | | debugmethods | | 1 | | Shows all methods available when an object is constructed (useful when extending classes or using object extensions) | | debugfailover | | 1 | | Shows failover methods from classes extended |
Database
| URL Variable | | Values | | Description | | ------------ | | ------ | | ----------- | | showqueries | | 1 | | List all SQL queries executed | | previewwrite | | 1 | | List all insert / update SQL queries, and don't execute them. Useful for previewing writes to the database. |
Profiling
| URL Variable | | Values | | Description | | ------------ | | ------ | | ----------- | | debug_memory | | 1 | | Output the number of bytes of memory used for this | debug_memory | | 1 | | Output the number of bytes of memory used for this request | | debug_profile | | 1 | | Enable the profiler for the duration of the request | | profile_trace | | 1 | | Includes full stack traces, must be used with debug_profile |
Security Redirects
You can set an URL to redirect back to after a Security action. See the section on URL Redirections for more information and examples.
| URL Variable | | Values | | Description | | ------------ | | ------ | | ----------- | | BackURL | | URL | | Set to a relative URL string to use once Security Action is complete |
Building and Publishing URLS
| Site URL | | Action | | -------- | | ------ | | http://yoursite.com**/dev/build** | | Rebuild the entire database and manifest, see below for additional URL Variables | | http://yoursite.com**/admin/publishall/** | | Publish all pages on the site | | http://yoursite.com**/anypage/images/flush** | | Creates new images for the page by deleting the resized ones and going back to the original to create new resized one |
/dev/build
| URL Variable | | Values | | Description | | ------------ | | ------ | | ----------- | | quiet | | 1 | | Don't show messages during build | | dont_populate | | 1 | | Don't run requireDefaultRecords() on the models when building. This will build the table but not insert any records |