ne0que

Hi there,

I used this topic for creating my own plugin. Everything works so far, but when i go to the main page on my sandbox.. i see the hello world post. When i click on it, i am in the ‘hello world’ post, but the title and the content has been replaced by the plugin page post.

If you download this code and put it as memberlist.php in your plugin folder of your sandbox you will see what i mean.

This is really weird. This is the code, i know it is not documented very well, but the class name says enough. I want to create a ‘memberlist’ page where i output all the members in a (paged) list. I start documenting the class when everything works.

<?php
/*
Plugin Name: Mallona Memberlist
Description: ~
Version: 1.0
Author: Dominique de Graaff
Author URI: mailto:d.degraaff@mallona.nl
*/
if (!class_exists('Memberlist_Plugin'))
{
  class Memberlist_Plugin
  {
    public $_name;
    public $page_title;
    public $page_name;
    public $page_id;

    public function __construct()
    {
      $this->_name      = 'memberlist';
      $this->page_title = 'Memberlist';
      $this->page_name  = $this->_name;
      $this->page_id    = '0';

      register_activation_hook(__FILE__, array($this, 'activate'));
      register_deactivation_hook(__FILE__, array($this, 'deactivate'));
      register_uninstall_hook(__FILE__, array($this, 'uninstall'));

      add_filter('parse_query', array($this, 'query_parser'));
      add_filter('the_posts', array($this, 'page_filter'));
    }

    public function activate()
    {
      global $wpdb;      

      delete_option($this->_name.'_page_title');
      add_option($this->_name.'_page_title', $this->page_title, '', 'yes');

      delete_option($this->_name.'_page_name');
      add_option($this->_name.'_page_name', $this->page_name, '', 'yes');

      delete_option($this->_name.'_page_id');
      add_option($this->_name.'_page_id', $this->page_id, '', 'yes');

      $the_page = get_page_by_title($this->page_title);

      if (!$the_page)
      {
        // Create post object
        $_p = array();
        $_p['post_title']     = $this->page_title;
        $_p['post_content']   = "This text may be overridden by the plugin. You shouldn't edit it.";
        $_p['post_status']    = 'publish';
        $_p['post_type']      = 'page';
        $_p['comment_status'] = 'closed';
        $_p['ping_status']    = 'closed';
        $_p['post_category'] = array(1); // the default 'Uncatrgorised'

        // Insert the post into the database
        $this->page_id = wp_insert_post($_p);
      }
      else
      {
        // the plugin may have been previously active and the page may just be trashed...
        $this->page_id = $the_page->ID;

        //make sure the page is not trashed...
        $the_page->post_status = 'publish';
        $this->page_id = wp_update_post($the_page);
      }

      delete_option($this->_name.'_page_id');
      add_option($this->_name.'_page_id', $this->page_id);
    }

    public function deactivate()
    {
      $this->deletePage();
      $this->deleteOptions();
    }

    public function uninstall()
    {
      $this->deletePage(true);
      $this->deleteOptions();
    }

    public function query_parser($q)
    {
      if(isset($q->query_vars['page_id']) AND (intval($q->query_vars['page_id']) == $this->page_id ))
      {
        $q->set($this->_name.'_page_is_called', true);
      }
      elseif(isset($q->query_vars['pagename']) AND (($q->query_vars['pagename'] == $this->page_name) OR ($_pos_found = strpos($q->query_vars['pagename'],$this->page_name.'/') === 0)))
      {
        $q->set($this->_name.'_page_is_called', true);
      }
      else
      {
        $q->set($this->_name.'_page_is_called', false);
      }
    }

    function page_filter($posts)
    {
      global $wp_query;

      if($wp_query->get($this->_name.'_page_is_called'))
      {
        $posts[0]->post_title = __('Memberlist');
        $posts[0]->post_content = 'The contents';
      }
      return $posts;
    }

    private function deletePage($hard = false)
    {
      global $wpdb;

      $id = get_option($this->_name.'_page_id');
      if($id && $hard == true)
        wp_delete_post($id, true);
      elseif($id && $hard == false)
        wp_delete_post($id);
    }

    private function deleteOptions()
    {
      delete_option($this->_name.'_page_title');
      delete_option($this->_name.'_page_name');
      delete_option($this->_name.'_page_id');
    }
  }
}
$memberlist = new Memberlist_Plugin();
?>

And what do you guys mean by ‘not’ using a page, but just a blank post. Do you have a little example for me that explains this?

By the way, i’m on 3.0 now (if that does matter)

Thanks!