protected function prepareData()
{
$this->auth->insertRule(new AuthorRule());
$this->auth->createOperation('createPost', 'create a post');
$this->auth->createOperation('readPost', 'read a post');
$this->auth->createOperation('updatePost', 'update a post');
$this->auth->createOperation('deletePost', 'delete a post');
$task = $this->auth->createTask('updateOwnPost', 'update a post by author himself', 'isAuthor');
$task->addChild('updatePost');
$role = $this->auth->createRole('reader');
$role->addChild('readPost');
$role = $this->auth->createRole('author');
$role->addChild('reader');
$role->addChild('createPost');
$role->addChild('updateOwnPost');
$role = $this->auth->createRole('editor');
$role->addChild('reader');
$role->addChild('updatePost');
$role = $this->auth->createRole('admin');
$role->addChild('editor');
$role->addChild('author');
$role->addChild('deletePost');
$this->auth->assign('reader A', 'reader');
$this->auth->assign('author B', 'author');
$this->auth->assign('editor C', 'editor');
$this->auth->assign('admin D', 'admin');
$this->auth->assign('reader E', 'reader');
}