我有一个特定的请求,建立用户之间的关联.这让我感到困惑,如何减少重复的关联,查询和结果？
起点看起来像这样？
// UsersTable
$this->belongsToMany('Users',[
'through' => 'Connections',]);
使用别名怎么样？
您的用户表：
class UsersTable extends Table
{
public function initialize(array $config)
{
$this->hasMany('ToConnections',[
'className' => 'Connections','foreignKey' => 'user_to'
]);
$this->hasMany('FromConnections','foreignKey' => 'user_from'
]);
}
}
和你的连接表：
class ConnectionsTable extends Table
{
public function initialize(array $config)
{
$this->belongsTo('ToUsers',[
'className' => 'Users','foreignKey' => 'user_to'
]);
$this->belongsTo('FromUsers','foreignKey' => 'user_from'
]);
}
}
然后,您可以根据需要使用contains()加载关联的模型.
$query = $conections->find()->contain([
'ToUsers','FromUsers'
]);
$recipients = TableRegistry::get('users');
$query = $recipients->find()->contain([
'ToConnections.FromUsers',]);
