Dependencies.php

<?php

abstract class Dependencies extends \Nette\Object
{

	/**
	 * Package version
	 */
	//const VERSION = 0; // 1.0.0

	/**
	 * Unique key generated by system for specific extension
	 */
	//const EXT_KEY = NULL;

	/**
	 * List of dependencies that must be met for appropriate behaviour
	 */
	protected $dependencies = array(
		//'dependencyKey' => array('>=', 'version');
	);

	private $init = False;



	public function __construct()
	{
		if( !defined(get_class($this).'::VERSION') OR !defined(get_class($this).'::EXT_KEY') ){
			throw new InvalidExtensionSetupException("Extension loader ".get_class($this)." has to have VERSION & EXT_KEY constants declared.");
		}

		// kontrola závislostí

		$this->init = True;
	}


	final public function isInitialized()
	{
		return $this->init;
	}


	final public function getVersion()
	{
		return constant(get_class($this).'::VERSION');
	}


	final public function getExtKey()
	{
		return constant(get_class($this).'::EXT_KEY');
	}
}