"User control" with MVC PHP
I was wondering how to achieve an asp.net "user control" like functionality with PHP in a MVC framework, specifically CodeIgniter.
To explain better what I want, here's some guidance:
A .net user control is a file, with both aspx and code (c#/vb) that provides a functionality across every page that implement it (say, a shopping cart). It is easily added to a Master Page which is a container for every other pages in the site.
In MVC structure, a page is loaded by the controller, which loads the View. I understand I can load Views inside Views, but how to provide the controller code for "cross site views" without repeating it every main controller?
Example: I have a view that loads Categories from database into a select list and this view is on top of every page. As I shouldn't (and开发者_开发知识库 I'm not sure if it is even possible) access my Category model from the view, where do I put the code to load this data without having to repeat it in every function in every controller?
If you want to avoid duplicating code in each controller, then simply extend the CI_Controller class and do all of the setup in your new Controller class upon instantiation ... and have all of your normal controllers inherit from New_Controller.
As Sean said, if the functionality is at Controller level you should extend CI_Controller. May be some functionality should be at view level, so a loader view can be used to help you keep the global layout of every page and include the common features. that's something like:
[view] layout.php:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="es" lang="es">
<head>
<?php
$this->load->view('meta', $data);
?>
</head>
<body>
<div id="wrapper">
<?php
$this->load->view('header', $data);
?>
<div id="contents">
<?php include ('menu_izq.php'); ?>
<div id="page">
<?php $this->load->view($page, $data); ?>
<div class="clear"></div>
</div>
</div>
<div style="clear: both;"></div>
<?php $this->load->view('footer');?>
</div>
</body>
</html>
In your controller you should always load this view and pass in the parameter array the value of the contents real view, like in
$data['page'] = 'incidents'; // this is the real contents
$stylesheets[] = '/scripts/jscalendar-1.0/skins/aqua/theme.css';
$data['stylesheets'] = $stylesheets;
$scripts[] = '/scripts/jscalendar-1.0/calendar.js';
$scripts[] = 'https://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js';
$scripts[] = '/scripts/autoNumeric-1.4.1.js';
$scripts[] = '/scripts/autoLoader.js';
$data['scripts'] = $scripts;
$this->load->view('container',$data);
I have worked very little with master pages, mainly in Sharepoint but if you want a front.master page so to speak and then load all other pages within that context your best bet would be to create a new library as your view handler and pro grammatically design it to load the secondary view within the master.
A simple class consisting of:
class MasterViewTemplate
{
public $master = "v1.php";
private $data = array();
public function __set($key,$value)
{
$this->data[$key] = $value;
}
public function __get($key)
{
return $this->data[$key];
}
public function setMaster($master)
{
$this->master = $master;
}
public function display($page)
{
//Load the master file
//Load the inner $page file
//Inject the page contents into the master
}
}
IS this the kind of thing you was looking for.
Answering to my own question: i found something worth checking. it provides Multiple MVC triads: https://bitbucket.org/wiredesignz/codeigniter-modular-extensions-hmvc/wiki/Home
加载中,请稍侯......
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