EE Monkee_patch

pi.example_plugin.php

<?php

$plugin_info = array(
	'pi_name' => 'example_plugin',
	'pi_version' => '0.1',
	'pi_author' => 'John Doe',
	'pi_author_url' => '',
	'pi_description' => '',
	'pi_usage' => '',
);


// ===========================================================
class example_plugin 
{
	private $db;

	// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	function example_function()
	{
		// store original db class
		$this->db = ee()->db;		
		// method overrides
		$overrides = array(
			'query'=>'_query_override',
		);
		// override db class
		ee()->db = new monkee_patch($this->db, $this, $overrides);

		// ... do stuff that calls the db class
		// ... the override query example just var_dumps the query

		// restore db class
		ee()->db = $this->db;
	}
	// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	function _query_override($query)
	{
		var_dump($query);
		// call original method
		return $this->db->query($query);
	}
}





// ===========================================================
// This allows to override functions from for example ee()->db
// Don't do this at home, here be dragons
class monkee_patch {
	private $monkee;
	private $monkee_caller;
	private $monkee_methods;
	// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	function __construct(&$original, &$caller, $methods)
	{
		// swap
		$this->monkee = $original;
		$this->monkee_caller = $caller;
		$this->monkee_methods = $methods;
	}
	// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	function __call($method, $args)
	{
		if (array_key_exists($method, $this->monkee_methods))
		{
			return call_user_func_array(array($this->monkee_caller, $this->monkee_methods[$method]), $args);
		}
		else
		{
			return call_user_func_array(array($this->monkee, $method), $args);
		}
	}
}


// end of file