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POImplement Message System into cakephp 2.x
 

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  1. POImplement Message System into cakephp 2.x
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    <p>I am trying to implement a Message System (user to user) into my <code>cakephp</code> framework. Therefore i created the following tables:</p> <h2>Messages</h2> <ol> <li>id </li> <li>title</li> <li>body</li> <li>sender_id</li> <li>created </li> <li>response_on</li> </ol> <h2>Messages_Users</h2> <ol> <li>id</li> <li>message_id</li> <li>recipient_id</li> </ol> <p>The Messages_Users table is used to store the recipient of each sent message. Then created the corresponding models like this and set up the relationships between the Models.</p> <h2>Model for Message</h2> <pre><code>&lt;?php class Message extends Model{ public $hasMany = array( 'MessageUser'=&gt;array( 'className'=&gt;'MessagesUser', 'foreign Key'=&gt;'message_id') ); public $belongsTo = array ( 'User' =&gt;array( 'className'=&gt;'User', 'foreignKey'=&gt;'sender_id') ); public $hasAndBelongsTo = array( 'Message'=&gt;array( 'className'=&gt;'Message', 'foreignKey'=&gt;'response_on') ); </code></pre> <p>}</p> <h2>Model for MessageUser</h2> <pre><code> &lt;?php class MessageUser extends Model{ public $belongsTo = array ( 'User'=&gt;array( 'className'=&gt;'User', 'foreignKey'=&gt;'user_id'), array( 'Message'=&gt;array( 'className'=&gt;'Message', 'foreignKey'=&gt;'message_id') ) ); </code></pre> <h2>Model for User</h2> <pre><code>class User extends AppModel{ public $hasAndBelongsTo = array( 'Message'=&gt;array( 'joinTable' =&gt;'messages_users', 'className' =&gt;'Message', 'foreignKey' =&gt;'recipient_id', 'associationForeignKey' =&gt;'message_id') ); </code></pre> <p>Now i want to implement into my MessagesController a function inbox() which shows all messages stored in the database, whom are sent to the corresponding user. So my approach was putting the function into the MessagesController </p> <pre><code>public function inbox(){ $uid = $this-&gt;Auth-&gt;user('id'); $messages = $this-&gt;Message-&gt;find('all', array( 'conditions' =&gt; array( 'recipient_id' =&gt; $uid) ) ); </code></pre> <p>The function above should perform a join on the table messages and messages_users via the message_id and select the sets of data where the user_id of table messages_users is equal to the recipient_id.</p> <p>But all I get is an error saying that the column <code>recipient_id</code> was not found in the where clause. </p> <p>How do I instruct the find method to join these tables properly? I thought it would be enough to link the models, so the cake magic would take care of the rest.</p>
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