tad80/optimisticlock

CakePHP behavior plugin to implement optimistic locking for RDBMS.

OptimisticLock

CakePHP behavior plugin to implement optimistic locking for RDBMS., _(*1)

Usage

Most simply, just load this behavior in your model., _(*2)

class Post extends AppModel {
    public $actsAs = array('OptimisticLock.OptimisticLock');
}

You can specify which field to compare and error message shown in Model::validationErrors. Default will be like this., _(*3)

class Post extends AppModel {
    public $actsAs = array(
        'OptimisticLock.OptimisticLock' => array(
            'field' => 'modified',
            'message' => 'Update conflict, another user has already updated the record. Please list and edit the record again.',
        ),
    );
}

Id and modified timestamp must be sent from your form., _(*4)

$this->Html->form->input('Post.id', array('type' => 'hidden'));
$this->Html->form->input('Post.modified', array('type' => 'hidden', 'name' => 'data[Post][opt_modified]'));