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<?php
namespace Zotlabs\Web;
/**
* Base controller class for Modules.
*
* Modules should extend this class, and override the methods needed. Emtpy
* default implementations allow Modules to only override the methods they
* need.
*
* The methods defined by this class is invoked in order:
*
* - init()
* - post() -- only for POST requests
* - get()
*
* Modules which emit other serialisations besides HTML (XML,JSON, etc.) should
* do so within the module `init` and/or `post` functions and then invoke
* `killme()` to terminate further processing.
*/
abstract class Controller {
/**
* Initialize request processing.
*
* This method is called before any other request processing, and
* regardless of the request method. The theme is not yet loaded when
* this method is invoked.
*/
public function init() {
}
/**
* Process POST requests.
*
* This method is called if the incoming request is a POST request. It is
* invoked after the theme has been loaded. This method should not normally
* render HTML output, as processing will fall through to the GET processing
* if this method completes without error or stopping processing in other
* ways.
*/
public function post() {
}
/**
* Process GET requests or the body part of POST requests.
*
* This method is called directly for GET requests, and immediately after the
* `post()` method for POST requests.
*
* It will return the module content as a HTML string.
*
* @return string HTML content for the module.
*/
public function get() {
return '';
}
}
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