cake模型笔记

Relationship	Association Type	Example
one to one	hasOne	A user has one profile.
one to many	hasMany	A user can have multiple recipes.
many to one	belongsTo	Many recipes belong to a user.
many to many	hasAndBelongsToMany	Recipes have, and belong to many ingredients.

四种关联关系。

一个例子

    /**
     * hasOne associations
     *
     * @var array
     */
    public $hasOne = array(
        'Engine' => array(
            'className' => 'Engine',
            'foreignKey' => 'user_id',
            'conditions' => '',
            'fields' => '',
            'order' => ''
        ),
        'TbAppkey' => array(
            'className' => 'TbAppkey',
            'foreignKey' => 'user_id',
            'conditions' => '',
            'fields' => '',
            'order' => ''
        ),
        'UserAccount' => array(
            'className' => 'UserAccount',
            'foreignKey' => 'user_id',
            'conditions' => '',
            'fields' => '',
            'order' => ''
        )
    );

    /**
     * belongsTo associations
     *
     * @var array
     */
    public $belongsTo = array(
        'UserGroup' => array(
            'className' => 'UserGroup',
            'foreignKey' => 'user_group_id',
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'type' => 'inner'
        ),
        'Domain' => array(
            'className' => 'Engine',
            'foreignKey' => 'domain_id',
            'dependent' => false,
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'limit' => '',
            'offset' => '',
            'exclusive' => '',
            'finderQuery' => '',
            'counterQuery' => '',
            'type' => 'inner'
        )
    );

    /**
     * hasMany associations
     *
     * @var array
     */
    public $hasMany = array(
        'Merchant' => array(
            'className' => 'Merchant',
            'foreignKey' => 'user_id',
            'dependent' => false,
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'limit' => '',
            'offset' => '',
            'exclusive' => '',
            'finderQuery' => '',
            'counterQuery' => ''
        ),
        'UserAccessPlatform' => array(
            'className' => 'UserAccessPlatform',
            'foreignKey' => 'user_id',
            'dependent' => false,
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'limit' => '',
            'offset' => '',
            'exclusive' => '',
            'finderQuery' => '',
            'counterQuery' => ''
        )
    );