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sounder
 Post subject: Creating a plugin...
PostPosted: Wed Apr 25, 2012 2:54 pm 
Joomla! Apprentice
Joomla! Apprentice

Joined: Mon Jan 05, 2009 3:39 pm
Posts: 6
I have written some code that basically popup when the user gets to the end of an article and recommends another one to read that is similar in choice.

I have this code basically hacked into my system. I am planning on an upgrade and would like to stick this code into a plugin and make the whole thing modular.

I have followed the tutorials all day trying to get it to work..

Can someone help out here..? I dont think the function inside the plugin is even being called.

Best Regards,
Sounder
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madchris
 Post subject: Re: Creating a plugin...
PostPosted: Wed Apr 25, 2012 9:08 pm 
Joomla! Enthusiast
Joomla! Enthusiast

Joined: Thu Jan 11, 2007 6:00 am
Posts: 205
Location: New Hampshire - United States
First make sure the plugin is published.

I assume this is a plugin of type "content" and that it is for Joomla 2.5. Carefully check the class and function names. If you have this in the XML file:

Code:
<files>
      <filename plugin="my_joomla_plugin">my_joomla_plugin.php</filename>
      ...


In the file my_joomla_plugin.php you must have (with the capital M):

Code:

// no direct access
defined( '_JEXEC' ) or die( 'Restricted access' );

class plgContentMy_joomla_plugin extends JPlugin
{

...


The available functions you can put in your class for a content plugin in Joomla 2.5 include the following (note these are different than the function names used for Joomla 1.5):

onContentAfterDelete
onContentAfterDisplay
onContentAfterSave
onContentAfterTitle
onContentBeforeDelete
onContentBeforeDisplay
onContentBeforeSave
onContentChangeState
onContentPrepare
onContentPrepareData
onContentPrepareForm
onContentSearch
onContentSearch
onContentSearchAreas

The most commonly used function for replacing plugin tags in article content is probably onContentPrepare.

Code:

public function onContentPrepare($context, &$row, &$params, $page = 0)
{

   $row->text = str_replace('{some_plugin_tag}', 'some replacement text', $row->text);
   
}


_________________
http://www.madblanks.com - Quiz, survey, assessment, custom calculator, general purpose form extension
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