我有以下模型结构。
邮政
id、标题、文本等
标签
id,名称,posts_count,创建
标签帖子
id、tag_id、post_id、创建
标签型号:
public $hasAndBelongsToMany = array(
'Post' =>
array(
'className' => 'Post,
'joinTable' => 'tags_posts',
'foreignKey' => 'tag_id',
'associationForeignKey' => 'post_id',
'unique' => true,
'conditions' => '',
'fields' => '',
'order' => '',
'limit' => '',
'offset' => '',
'finderQuery' => ''
)
);
岗位型号:
public $hasAndBelongsToMany = array(
'Tag' =>
array(
'className' => 'Tag',
'joinTable' => 'tags_posts',
'foreignKey' => 'post_id',
'associationForeignKey' => 'tag_id',
'unique' => true,
'conditions' => '',
'fields' => '',
'order' => '',
'limit' => '',
'offset' => '',
'finderQuery' => ''
)
);
标签邮政模型:
public $belongsTo = array(
'Tag' => array(
'className' => 'Tag',
'foreignKey' => 'tag_id',
'conditions' => '',
'fields' => '',
'order' => '',
'counterCache' => 'posts_count'
),
'Post' => array(
'className' => 'Post',
'foreignKey' => 'post_id',
'conditions' => '',
'fields' => '',
'order' => ''
)
);
为什么 TagsPost 模型的 belongsTo 中的 counterCache 不起作用?如果发布了带有相关标签的帖子,我想增加标签模型中的posts_count,如果帖子被删除,我想减少。