如何使用angularjs更新codeIgniter中的记录

Question

我创建了一个功能

<button data-toggle="modal" ng-click="edit(school.school_ID)" data-target="#edit-data" class="btn btn-primary">Edit</button>

传递给AngularJS控制器

$scope.edit = function(id)
{
    $http({
        method : 'GET',
        url: 'mycontroller/myfun',

    }).then(function(data){
            console.log(data);
    $scope.form = data;
    });
};

访问mycontroller / myfun

public function myfun(id)
    {
       $q = $this->db->get_where('tablename', array('school_ID' =>
        id));
        echo json_encode($q->row());
    }

问题在哪里