Ad-hoc Plugin Example for Atlanta WordPress Developer Meetup - 2011-12-12

jills_properties.php

<?php
/*
 * Plugin Name: Jill's Properties
 * Description: Ad-hoc Plugin Example for Atlanta WordPress Developer Meetup - 2011-12-12
 * Author: Mike Schinkel
 * Author URI: http://about.me/mikeschinkel
 * Version: 0.1
 */
class Jills_Properties {
  static function on_load() {
    add_action( 'init', array( __CLASS__, 'init' ) );
    add_filter( 'the_content', array( __CLASS__, 'the_content' ) );
  }
  function the_content( $content ) {
    if ( 'jills_property' == get_post_type() ) {
      return $content . '<p>Call Jill NOW!!! 555-1212</p>';
    }
    return $content;
  }
  function init() {
    register_post_type( 'jills_property', array(
      'labels' => array(
        'name' => _x( 'Properties', 'jills_properties' ),
        'singular_name' => _x( 'Property', 'jills_properties' ),
        'add_new' => _x( 'Add New', 'jills_properties' ),
        'add_new_item' => _x( 'Add New Property', 'jills_properties' ),
        'all_items' => _x( 'Properties', 'jills_properties' ),
        'edit_item' => _x( 'Edit Property', 'jills_properties' ),
        'new_item' => _x( 'New Property', 'jills_properties' ),
        'view_item' => _x( 'View Property', 'jills_properties' ),
        'search_items' => _x( 'Search Properties', 'jills_properties' ),
        'not_found' => _x( 'No Properties found', 'jills_properties' ),
        'not_found_in_trash' => _x( 'No Properties found in Trash', 'jills_properties' ),
        'parent_item_colon' => _x( 'Parent Property', 'jills_properties' ),
        'menu_name' => _x( 'Properties', 'jills_properties' ),
      ),
      'public'     => true,
      'show_ui'   => true,
      'rewrite'   => array( 'slug' => 'properties' ),
      'supports'  => array(
        'title',
        'editor',
        'thumbnail',
      ),
    ));
  }
}
Jills_Properties::on_load();