Question

我有用户和事件，以及events_users的共享表，以及设置到此连接表的用户/事件之间的HABTM。

用户架构
id, …, …

事件架构
id,
user_id {this is the Owner of the event}

events_users架构
id
user_id
event_id

用户模型

public $hasAndBelongsToMany = array(
    'Event' => array(
        'className' => 'Event',
        'joinTable' => 'events_users',
        'foreignKey' => 'user_id',
        'associationForeignKey' => 'event_id',
        'unique' => true,
        'conditions' => '',
        'fields' => '',
        'order' => '',
        'limit' => '',
        'offset' => '',
        'finderQuery' => '',
        'deleteQuery' => '',
        'insertQuery' => ''
    )
);

事件模型

var $hasAndBelongsToMany = array(
    …
    …

    'SharedUser' => array(
        'className' => 'User',
        'joinTable' => 'events_users',
        'foreignKey' => 'event_id',
        'associationForeignKey' => 'user_id',
        'unique' => true,
        'conditions' => '',
        'fields' => '',
        'order' => '',
        'limit' => '',
        'offset' => '',
        'finderQuery' => '',
        'deleteQuery' => '',
        'insertQuery' => ''
    )
);

它使用scaffolded add / edit表单创建了events_users db条目，但是当我尝试拉它时，我得到的是所有事件，而不仅仅是他们通过连接表“访问”的事件。当我查看一个事件时，它会自动神奇地向我显示使用此连接表的关联用户。

尝试拉取用户从users_controller“访问”的事件：

// this throws error of Unknown column 'EventUser.user_id' in 'where clause' (no matter what combination of pluralization or capitalization and underscore, ie EventUser, events_users, Events_Users)
$events = $this->User->Event->find('all', array('conditions'=> array('EventUser.user_id'=> $id))); 

// this throws error of Undefined property: UsersController::$EventUser 
$events = $this->User->Event->find('all', array('conditions'=> array('UsersEvents.user_id'=> $id))); 

// I would think this just gives the ones they "own", i have a user_id column in Event for the creator of event, but it returns empty
$events = $this->User->Event->find('all', array('conditions'=> array('user_id'=> $id)));  


// This gives me all events
$events = $this->User->Event->find('all');

Answer 1

$user = $this->User->find('first', array('conditions' => array('User.id' => $id));
debug($user['Event']);

可能contain只有Event模型，如果有更多内容附加到您不想要的用户模型。

HABTM只能单向工作

1 个答案: