controller.php

<?php
/**
 * Controllers extend this base controller class.
 * The core will use it to load the view, and it also 
 * offers some functionality to your controllers.
 */
class controller
{
	/**
	 * The core
	 * @var core
	 */
	public $core = null;
	
	/**
	 * The view this view will load later on.
	 * @var view
	 */
	public $view = null;
	
	public function controller($core)
	{
		$this->core = $core;
		$this->init();
		
		// Only do the following if we've been extended. (ie; not if someone used "new controller()"
		if(get_class($this) != 'controller' && get_class($this) != 'app')
		{
			if(class_exists('appView')) {
				$this->view = new appView($this);	
			}
			else
			{
				$this->view = new view($this);
			}
			$this->view->init();
			$app = (isset($core->uri[0]) ? $core->uri[0] : 'index');
			$page = 'index';
			if(isset($core->uri[1])) $page = $core->uri[1];
			$action = $page.'View';
			if(!method_exists($this, $action)) $action='defaultView';
			$this->core->pageDetails['view'] = '../app/'.$app.'/'.$app.($page=='index' ? '' : '-'.$page).'View.php';
			$this->$action();
		}
	}
	
	protected function defaultView()
	{
		// Override me with your own default view (optional).
		$page = (isset($this->core->uri[1]) ? $this->core->uri[1] : 'index');
		$page .= 'View()';
		$this->core->error("You need [ <b>$page</b> ] or [ <b>defaultView()</b> ] in this controller.");
	}
	
	public function init()
	{
		// Override me with your own constructor (optional).
	}
	
	/**
	 * Change which layout this page will display in.
	 */
	public function setLayout($layout)
	{
		$this->core->pageDetails['layout'] = $layout;
	}
	
	/**
	 * Set the page's title
	 */
	public function setTitle($title)
	{
		$this->core->pageDetails['title'] = $title;
	}
	
	/**
	 * Add another .js file to the head
	 */
	public function addJS($script, $version='')
	{
		if($version) $version = "?v=$version";
		$this->core->pageDetails['scripts'] .= "<script type='text/javascript' charset='ISO-8859-1' src='/js/{$script}.js{$version}'></script>\n";
	}
	
	/**
	 * Add inline JS to the head
	 */
	public function addInlineJS($script)
	{
		$this->core->pageDetails['scripts'] .= '<script type="text/javascript" charset="ISO-8859-1">'.$script.'</script>'."\n";
	}
	
	/**
	 * Add another .css file to the head
	 */
	public function addCSS($style)
	{
		$this->core->pageDetails['styles'] .= '<link rel="stylesheet" type="text/css" href="/css/'.$style.'.css" />'."\n";
	}
	
	/**
	 * Returns a newly instantiated table.
	 * @return table
	 */
	public function newTable($table)
	{
		$file = '../app/_tables/'.$table.'Table.php';
		if(!file_exists($file)) $this->core->error("Error including table. [<b> $file </b>] doesn't exist.");
		require_once($file);
		$table = $table.'Table';
		if(!class_exists($table)) $this->core->error("Error opening table. [<b> $file </b>] needs [<b> class $table extends table</b>].");
		return new $table($this);
	}

	/**
	 * Redirect to another page.
	 * Defaults to the current page (good for clearing POST)
	 */
	public function redirect($url=false)
	{
		// echo "Redirecting";
		// check nothings been printed yet
		if(ob_get_contents()) $this->core->error("Shouldn't redirect. There's output. [$url]");
		
		// Generate new URL
		if(!$url) $url = $_SERVER['REQUEST_URI'];
		
		$slash = ($url[0]=='/' ? '' : '/');
		
		$url = 'http://'.$_SERVER['HTTP_HOST'].$slash.$url;
		
		// send them to new url
		header("location:$url");
		exit;
	}
	
	/**
	 * Redirect back to the previous page (good for clearing POST)
	 */
	public function redirectBack()
	{	
		// check nothings been printed yet
		if(ob_get_contents()) $this->core->error("Shouldn't redirect. There's output.");
		
		$url = $_SERVER['HTTP_REFERER'];
		header("location:$url");
		exit;
	}
	
	/**
	 * Sets a note to be retrieved by a view's $this->getNotes() function.
	 */
	public function setNote($note='OK')
	{
		if(!session_id()) $this->core->error('You must use session_start(), or have "use_session" enabled in config.ini to use setNote().');
		$existingNote = isset_val($_SESSION['note']);
		if($existingNote) $note = $existingNote.'<br>'.$note;
		$_SESSION['note'] = $note;
	}
	
	
	/**
	 * Sets an error to be retrieved by a view's $this->getNotes() function.
	 */
	public function setError($error='Error')
	{
		if(!session_id()) $this->core->error('You must use session_start(), or have "use_session" enabled in config.ini to use setError().');
		$existingError = isset_val($_SESSION['error']);
		if($existingError) $error = $existingError.'<br>'.$error;
		$_SESSION['error'] = $error;
	}
	
	/**
	 * Pass me the path to the view. eg. /index/indexView.php
	 *
	 * @param unknown_type $view
	 */
	public function setView($view='')
	{
		$this->core->pageDetails['view'] = "../app$view";
	}
	
}