Timestampable behavior

I'm not sure that I understand correctly for what purpose Behaviors in Models are used. However I suppose, that the Timestampable behavior are using for autofilling DATETIME fields during creating or updaing a row. Like that: ```php $user->createdat = date('Y-m-d H:i:s'); ``` If I understand it correctly I can remove this string (above) from controller and add this in model: ```php public function initialize() { $this->addBehavior(new Timestampable(array( 'beforeCreate' => array( 'field' => array('createdat', 'loginedat'), 'format' => 'Y-m-d H:i:s' ) ))); } ``` Also in controller: ```php $user = new Users(); $user->initialize(); // Don't forget to call it to register behavior ``` But I can't get this work. I just post signup form and get: createdat is required logined_at is required

Yes, here is a part of my scheme: ```sql CREATE TABLE IF NOT EXISTS users ( id int(11) unsigned NOT NULL AUTO_INCREMENT, username varchar(32) NOT NULL DEFAULT '', nickname varchar(32) NOT NULL, password varchar(64) NOT NULL, created_at datetime NOT NULL, logined_at datetime NOT NULL, karma tinyint(4) NOT NULL DEFAULT '0', role tinyint(1) NOT NULL DEFAULT '2', is_banned tinyint(1) DEFAULT NULL, PRIMARY KEY (id), UNIQUE KEY username (username,nickname) ) ENGINE=InnoDB DEFAULT CHARSET=utf8; ``` I also tried to change this two fields to accept NULL, and it inserts, but this fields was NULL instead of current timestamp formatted to DATESTAMP...

So how to trick, or maybe I don't understand something?


'initialize' is called automatically the first time the model is used, there is no need to call it manually.

As the column 'created_at' is marked as not null and you're assigning the value in the 'beforeCreate' event and the column needs a value, this event is not being called. You need to use 'beforeValidationOnCreate':

public function initialize()
        $this->addBehavior(new Timestampable(array(
            'beforeValidationOnCreate' => array(
                'field' => 'created_at',
                'format' => 'Y-m-d H:i:s'

Thank you! It works perfectly!


But what if i wanna use db-engine created_at TIMESTAMP NOT NULL DEFAULT NOW() ? What should i add to Model to support this? By default i've got created_at is required message

To let the database handle the created_at column use skipAttributes() on the model. Example:

public function initialize()
        // Ignore created_at column

It's also possible to ignore columns only on INSERT or UPDATE. See documentation for more.