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--- components-depending-on-the_page [2012/10/31 15:54]
127.0.0.1 external edit
+++ components-depending-on-the_page [2017/02/28 00:50]
Timbow [Several Pages Each with Different Components]
@@ Line 1: / Line 1: @@
-====== Components Depending On The Page ======
+======Components Depending On The Page ======
+=====Component Only on One Page=====
 If you would like a component to be displayed on only one page, that can be done by adding the following code to your theme's **template.php** file:
 <code><?php if (return_page_slug()=='PAGE') get_component('COMPNAME'); ?></code>
@@ Line 5: / Line 6: @@
 Don't forget to replace **PAGE** with your **page's slug** and **COMPNAME** with the **component's name**.
-====== Components Depending On The Parent Page ======
+=====Several Pages Each with Different Components=====
+Say you have three pages with the slugs //index//, //about//, //contact// and sidebars as components named //peter//, //paul// and //mary// you would edit your template to replace <code><?php get_component(sidebar); ?></code> with
+<code>
+<?php if (return_page_slug()=='index') {get_component('peter');}
+ elseif (return_page_slug()=='about') {get_component('paul');}
+else {get_component('mary');} ?> </code>
+which in English reads
+  **If** the page slug is //index// insert the component //peter//, **otherwise if** the page slug is //about// insert the component //paul// and **otherwise** just insert the component //mary//.
+===== Components Depending On The Parent Page =====
 Now If you want a component to be displayed on pages of a specific parent page, you can do it in a similar way:
 <code><?php if (get_parent(0)=='PAGE') get_component('COMPNAME'); ?></code>
@@ Line 12: / Line 23: @@
-====== Exluding components ======
+===== Excluding components =====
-If you would like to exclude a component from a page you could do that by **replacing** "**==**" with "**!=**" in the code above.
+If you would like to exclude a component from a page you could do that by replacing "**==**" with "**!=**" in the code above.
+=====A System for Different Components on Different Pages=====
+The Components might contain a header image, sidebar content, tagline text, anything. If you only want one page to be different it might be simplest to just make a duplicate page template, but if you want them different on each of several pages here is how.
+The following text needs to be in a functions.php file in your theme folder:
+<file php><?php
+if (!function_exists('component_exists')) {
+    function component_exists($id) {
+        global $components;
+        if (!$components) {
+             if (file_exists(GSDATAOTHERPATH.'components.xml')) {
+                $data = getXML(GSDATAOTHERPATH.'components.xml');
+                $components = $data->item;
+            } else {
+                $components = array();
+            }
+        }
+        $exists = FALSE;
+        if (count($components) > 0) {
+            foreach ($components as $component) {
+                if ($id == $component->slug) {
+                    $exists = TRUE;
+                    break;
+                }
+            }
+        }
+        return $exists;
+    }
+}
+?></file>
+Make a component which will be the default component and call it say //default//. Make components for specific pages and name them to include the page slug of the page into which they are to be inserted, so name them say //content-about// and //content-contact//. Then call the component in your page template as follows:
+<code php>
+<?php  if (component_exists('content-'.get_page_slug(false)))
+	  {get_component('content-'.get_page_slug(false));}
+     else {get_component('default');}	?></code>
+======Links======
+Back to the GetSimple Wiki [[:start|Contents Page]]
+===How to Have Different sidebars===
+[[http://mvlcek.bplaced.net/how-to/sidebars/]]

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