CakePHP可包含的订单条件不起作用

时间:2012-07-24 21:03:30

标签: cakephp containable

我遇到一个非常简单的订购查询问题。我有一个Post模型和一个带有HABTM关系的Tag模型,我正在尝试返回所有帖子的列表,其中包含分配给它们的特定标记,按帖子创建日期排序。

$this->set('data', $this->Post->Tag->find('all', array(
    'conditions' => array('Tag.id' => 1),
    'contain' => array('Post' => array(
        'order' => 'Post.created_date desc'
    ))
)));

虽然这会返回帖子列表,但不按日期排序。

启用调试后,似乎正在使用以下查询:

SELECT `Post`.`id`, `Post`.`title`, `Post`.`created_date`, `PostsTag`.`post_id`, `PostsTag`.`tag_id`
FROM `database`.`posts` AS `Post`
JOIN `database`.`posts_tags` AS `PostsTag` ON (`PotsTag`.`tag_id` = 1 AND `PostsTag`.`post_id` = `Post`.`id`)

帖子代码模型:

class Post extends AppModel {
    public $name = 'Post';
    public $hasAndBelongsToMany = array('Tag');
}

标签代码模型:

class Tag extends AppModel {
    public $name = 'Tag';
    public $hasAndBelongsToMany = array('Post');
}

对此问题的任何帮助都将非常感激 - 我正在使用CakePHP 2.1。如果它有任何区别。

3 个答案:

答案 0 :(得分:3)

如何在标签模型中定义订单属性? 比如说。

var $hasAndBelongsToMany = array(
    'Post' => array(
        'order' => 'Post.created_date'
    )
);

答案 1 :(得分:1)

我认为“订单”不应该在“包含”内。 试试:

$this->set('data', $this->Post->Tag->find('all', array(
    'conditions' => array('Tag.id' => 1),
    'contain' => array('Post'),
    'order' => 'Post.created_date desc'
)));

或只是:

 $this->set('data', $this->Post->Tag->find('all', array(
        'conditions' => array('Tag.id' => 1),
        'order' => 'Post.created_date desc'
 )));

答案 2 :(得分:0)

阅读本文: -

http://www.jamesfairhurst.co.uk/posts/view/adding_tags_to_a_cakephp_app_hasAndBelongsToMany/

http://edivad.wordpress.com/2007/04/19/cakephp-hasandbelongstomany-habtm/

//试试这个

CREATE TABLE `tags` (
  `id` int(11) NOT NULL auto_increment,
  `tag` varchar(100) NOT NULL,
  `created` datetime NOT NULL,
  `modified` datetime NOT NULL,
  PRIMARY KEY  (`id`)
);


CREATE TABLE `posts_tags` (
  `post_id` int(11) NOT NULL,
  `tag_id` int(11) NOT NULL
);


//Creating the Models and Relationships

class Tag extends AppModel {
    var $name = 'Tag';
    var $hasAndBelongsToMany = array('Post'=>array('className'=>'Post'));
}

class Post extends AppModel {
    var $name = 'Post';
    var $hasMany = array('Comment'=>array('className'=>'Comment'));
    var $hasAndBelongsToMany = array('Tag'=>array('className'=>'Tag'));
}