使用Kohana 3的ORM模型时,从相关模型的字段中获取数据的最佳方法是什么?例如,我有一个员工,他有一个公司,并且有很多任务。我将如何从公司模型和分配模型中的字段获取数据(即以has_one和has_many关系)?Kohana 3:从ORM模型获取相关数据
编辑:根据要求,这里是有问题的模型。
用户模型
class Model_User extends ORM {
protected $_table_name = 'user';
protected $_primary_key = 'id';
protected $_primary_val = 'username';
protected $_has_many = array(
'task' => array(
'model' => 'task',
'foreign_key' => 'user',
),
);
protected $_belongs_to = array(
'company' => array(
'model' => 'company',
'foreign_key' => 'company'
),
);
任务模型
class Model_Task extends ORM {
protected $_table_name = 'tasks';
protected $_primary_key = 'id';
protected $_primary_val = 'name';
protected $_belongs_to = array(
'project' => array(
'model' => 'project',
'foreign_key' => 'project'
),
'user' => array(
'model' => 'user',
'foreign_key' => 'user'
),
);
公司型号
class Model_Company extends ORM {
protected $_table_name = 'companies';
protected $_primary_key = 'id';
protected $_primary_val = 'name';
protected $_has_many = array(
'user' => array(
'model' => 'user',
'foreign_key' => 'company'
),
);
}
代码投掷的错误,从控制器
$users = ORM::factory('user')->find_all();
$list = array();
foreach($users as $user) {
$list[$user->id] = array(
'username' => $user->username,
'email' => $user->email,
'company' => $user->company->name //error:Trying to get property of non-object
)
}
啊,我看出来:“foreign_key” =>“公司”在Model_User。你不能同时使用外键和关系。 – biakaveron 2010-10-06 05:34:54