Template mechanism in Zend framework

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Templates are common in some open-source systems, such as discuz, ecshop, and Wordpress. The so-called template mechanism is to integrate the HTML of all the presentation LayersCodeAnd Related static files are placed under a topic folder, you can freely switch the topic appearance in the background. By default, templates are not supported in Zend framework. Generally, HTML files are placed under the views folder of the application or module. However, we can implement this function through simple modifications.

Create a frontcontroller plug-in

The topic is embodied in the view. The view is determined by the Web request. Therefore, we need to create a Front Controller plug-in. Of course, you can also place it in _ initview of Bootstrap, but you do not know the request controller in Bootstrap. Therefore, you cannot set the corresponding topic based on modlue, Controller, and action. Bootstrap Implementation Method

 1       Protected   Function _ Initview ()
 2 {
 3           $ View = New Zend_view ();
 4           $ View -> Setscriptpath (application_path.ds. 'view'. Ds. 'scripts ');
 5           $ View -> Addscriptpath (application_path.ds. 'themes'. Ds. 'default'. Ds. 'view ');
 6   
 7           $ Viewrenderer = Zend_controller_action_helperbroker: getstatichelper (
 8 'Viewrenderer'
 9 );
 10           $ Viewrenderer -> Setview ( $ View );
 11           Return   $ View ;
 12 }

First, register the plug-in application/Bootstrap. php In Bootstrap.

1 ClassBootstrapExtendsZend_application_bootstrap_bootstrap
2{
3Protected Function_ Initfrontcontrollerplugin ()
4{
5$ Front=$ This-> Bootstrap ('frontcontroller')-> getresource ('frontcontroller ');
6$ Front-> Registerplugin (NewApplication_plugin_theme ());
7}
8}
 

Application/plugins/theme. php

1   Class Application_plugin_theme Extends Zend_controller_plugin_abstract
 2 {
 3     Public   Function Routeshutdown ( $ Request )
 4 {
 5       $ Theme = New Stdclass;
6       $ Theme -> Foldername = 'simple ';
 7 Zend_registry: Set ('Theme ', $ Theme );
 8   
 9   
 10       $ Bootstrap = Zend_controller_front: getinstance ()-> getparam ('bootstrap ');
 11       $ View = $ Bootstrap -> Bootstrap ('view')-> getresource ('view ');
12       $ View -> Setbasepath (application_path. '/views /'. $ Theme -> Foldername );
 13   
 14       $ Layout = $ Bootstrap -> Bootstrap ('layout ')-> getresrouce ('layout ');
 15       $ Layout -> Setlayoutpath (application_path. '/layouts /'. $ Theme -> Foldername );
 16 }
17 }

For the following URL, the View File structure is as follows:

URL:/blog/viewall
Controller/Action: blogcontroller: viewallaction ()
Layout: Application/layouts/simple/layout. phtml
View: Application/views/simple/scripts/blog/viewall. phtml

Create view Assistant

We also need to use a lot of static files in the template, such as CSS, JS, and images. These images are usually stored in the public folder, to load the corresponding file in the view according to the topic name, we need to make a view Assistant
Application_view_helper_theme

1 ClassApplication_view_helper_theme
2{
3Public FunctionTheme ($ URL)
4{
5$ Theme= Zend_registry: Get ('Theme ');
6$ Baseurl= "/Themes /{$ Theme-> Foldername }";
7Return $ Baseurl.$ URL;
8}
9}
 

You can also put the theme name in the session.

1   $ Session = Zend_registry: Get ('zend _ session ');
 2   If (! Isset ( $ Session -> Theme ))
 3   $ Session -> Theme = 'simple ';
 4   
 5   //  Obtain it if needed, in viewhelper  
 6   $ Session = Zend_registry: Get ('zend _ session ');
 7   $ URL = $ Baseurl . $ Session -> Theme. $ Content ;

Use this assistant in the view

 
Echo'$ This-> Theme ('/images/smiley.gif'). '"alt =" Smiley "> ';