samples/blog/Post.php

   1 <?php
   2 /*
   3   +---------------------------------------------------------------------------------+
   4   | Copyright (c) 2010 ActiveMongo                                                  |
   5   +---------------------------------------------------------------------------------+
   6   | Redistribution and use in source and binary forms, with or without              |
   7   | modification, are permitted provided that the following conditions are met:     |
   8   | 1. Redistributions of source code must retain the above copyright               |
   9   |    notice, this list of conditions and the following disclaimer.                |
  10   |                                                                                 |
  11   | 2. Redistributions in binary form must reproduce the above copyright            |
  12   |    notice, this list of conditions and the following disclaimer in the          |
  13   |    documentation and/or other materials provided with the distribution.         |
  14   |                                                                                 |
  15   | 3. All advertising materials mentioning features or use of this software        |
  16   |    must display the following acknowledgement:                                  |
  17   |    This product includes software developed by César D. Rodas.                  |
  18   |                                                                                 |
  19   | 4. Neither the name of the César D. Rodas nor the                               |
  20   |    names of its contributors may be used to endorse or promote products         |
  21   |    derived from this software without specific prior written permission.        |
  22   |                                                                                 |
  23   | THIS SOFTWARE IS PROVIDED BY CÉSAR D. RODAS ''AS IS'' AND ANY                   |
  24   | EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED       |
  25   | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE          |
  26   | DISCLAIMED. IN NO EVENT SHALL CÉSAR D. RODAS BE LIABLE FOR ANY                  |
  27   | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES      |
  28   | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;    |
  29   | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND     |
  30   | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT      |
  31   | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS   |
  32   | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE                     |
  33   +---------------------------------------------------------------------------------+
  34   | Authors: César Rodas <crodas@php.net>                                           |
  35   +---------------------------------------------------------------------------------+
  36 */
  37
  38
  39 class PostModel extends ActiveMongo
  40 {
  41     static $validates_presence_of = array(
  42         'title',
  43         'uri',
  44         'author',
  45     );
  46
  47     static $validates_length_of = array(
  48         array('title', 'min' => 5, 'max' => 30),
  49     );
  50
  51     public $title;
  52     public $uri;
  53     public $author;
  54     public $comment;
  55     public $ts;
  56
  57     const LIMIT_PER_PAGE=20;
  58
  59     /**
  60      *  Return this collection name.
  61      *
  62      *  @return string
  63      */
  64     function getCollectionName()
  65     {
  66         return 'post';
  67     }
  68
  69     function before_validate(&$obj)
  70     {
  71         $obj['ts'] = new MongoTimestamp();
  72     }
  73
  74
  75     /**
  76      *  Author Filter.
  77      *
  78      *  Check if we save the Author _id,
  79      *  or it throws an exception.
  80      *
  81      *  @param mixed &$value    Current value
  82      *  @param mixed $old_value Past value, used on Update
  83      *
  84      *  @return bool
  85      */
  86     function author_filter(&$value, $old_value)
  87     {
  88         if (!$value instanceof MongoID) {
  89             throw new Exception("Invalid MongoID");
  90         }
  91         return true;
  92     }
  93
  94     /**
  95      *  Update Author information in the Posts. This function
  96      *  is trigger when a new Post is created or the Author
  97      *  has updated his/her profile.
  98      *
  99      *  @param MongoID $id  Author ID
 100      *
 101      *  @return void
 102      */
 103     function updateAuthorInfo(MongoID $id)
 104     {
 105         $author = new AuthorModel;
 106         $author->find($id);
 107
 108         $document = array(
 109             '$set' => array(
 110                 'author_name' => $author->name,
 111                 'author_username' => $author->username,
 112             ),
 113         );
 114
 115         $filter = array(
 116             'author' => $id,
 117         );
 118
 119         $this->_getCollection()->update($filter, $document, array('multiple' => true));
 120
 121         return true;
 122     }
 123
 124     /**
 125      *  A new post must have its author information
 126      *  on it. (to avoid multiple requests at render time).
 127      *
 128      *  @return void
 129      */
 130     function after_create()
 131     {
 132         $this->updateAuthorInfo($this->author);
 133     }
 134
 135     /**
 136      *  Simple abstraction to add a new comment,
 137      *  to avoid typo errors at coding time.
 138      */
 139     function add_comment($user, $email, $comment)
 140     {
 141         $this->comment[] = array(
 142             "user" => $user,
 143             "email" => $email,
 144             "comment" => $comment,
 145         );
 146         return true;
 147     }
 148
 149     function setup()
 150     {
 151         $this->addIndex(array('uri' => 1), array('unique'=> 1));
 152         $this->addIndex(array('author' => 1));
 153         $this->addIndex(array('ts' => -1));
 154     }
 155 }
 156
 157