0
public function getGroups()
{
return $this->hasMany(Groups::className(), ['id' => 'employee_id'])
->viaTable('groups_of_employee', ['group_id' => 'id']);
}
观点:
<div class="site-index">
<?= GridView::widget([
'dataProvider' => $provider,
'columns' => [
'lastname',
'position',
'groups.name_of_group'
],
]);
?>
我写的代码它的工作原理没有错误,但场name_of_group是空的。错误在哪里?