mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
94 lines
2.7 KiB
Markdown
94 lines
2.7 KiB
Markdown
# Execution Pipeline
|
|
|
|
## Introduction
|
|
|
|
This page documents all the steps from an URL request to the delivered page.
|
|
|
|
## .htaccess and RewriteRule
|
|
|
|
Silverstripe uses **[mod_rewrite](http://httpd.apache.org/docs/2.0/mod/mod_rewrite.html)** to deal with page requests.
|
|
So instead of having your normal everyday `index.php` file which tells all, you need to look elsewhere.
|
|
|
|
The basic .htaccess file after installing SilverStripe look like this:
|
|
|
|
<file>
|
|
### SILVERSTRIPE START ###
|
|
|
|
<Files *.ss>
|
|
Order deny,allow
|
|
Deny from all
|
|
Allow from 127.0.0.1
|
|
</Files>
|
|
|
|
<IfModule mod_rewrite.c>
|
|
RewriteEngine On
|
|
|
|
RewriteCond %{REQUEST_URI} !(\.gif$)|(\.jpg$)|(\.png$)|(\.css$)|(\.js$)
|
|
|
|
RewriteCond %{REQUEST_URI} ^(.*)$
|
|
RewriteCond %{REQUEST_FILENAME} !-f
|
|
RewriteRule .* framework/main.php?url=%1&%{QUERY_STRING} [L]
|
|
</IfModule>
|
|
### SILVERSTRIPE END ###
|
|
</file>
|
|
|
|
The `<Files>` section denies direct access to the template files from anywhere but the server itself.
|
|
|
|
The next section enables the rewriting engine and rewrites requests to `framework/main.php` if they meet the following
|
|
criteria:
|
|
|
|
* URI doesn't end in .gif, .jpg, .png, .css, or .js
|
|
* The requested file doesn't exist on the filesystem `framework/main.php` is called with the REQUEST_FILENAME (%1) as the `url` parameter and also appends the original
|
|
QUERY_STRING.
|
|
|
|
See the [mod_rewrite documentation](http://httpd.apache.org/docs/2.0/mod/mod_rewrite.html) for more information on how
|
|
mod_rewrite works.
|
|
|
|
|
|
## main.php
|
|
|
|
All requests go through `main.`php, which sets up the environment and then hands control over to `Director`.
|
|
|
|
## Director and URL patterns
|
|
|
|
main.php relies on `[api:Director]` to work out which controller should handle this request. `[api:Director]` will instantiate that
|
|
controller object and then call `[api:Controller::run()]`.
|
|
|
|
In general, the URL is build up as follows: `page/action/ID/otherID` - e.g. http://localhost/mypage/addToCart/12.
|
|
This will add an object with ID 12 to the cart.
|
|
|
|
When you create a function, you can access the ID like this:
|
|
|
|
:::php
|
|
public function addToCart ($request) {
|
|
$param = $request->allParams();
|
|
echo "my ID = " . $param["ID"];
|
|
$obj = MyProduct::get()->byID($param["ID"]);
|
|
$obj->addNow();
|
|
}
|
|
|
|
## Controllers and actions
|
|
|
|
`[api:Controller]`s are the building blocks of your application.
|
|
|
|
**See:** The API documentation for `[api:Controller]`
|
|
|
|
You can access the following controller-method with /team/signup
|
|
|
|
:::php
|
|
class Team extends DataObject {}
|
|
|
|
class Team_Controller extends Controller {
|
|
|
|
private static $allowed_actions = array('signup');
|
|
|
|
public function signup($id, $otherId) {
|
|
return $this->renderWith('MyTemplate');
|
|
}
|
|
|
|
}
|
|
|
|
## SSViewer template rendering
|
|
|
|
See [templates](/reference/templates) for information on the SSViewer template system.
|