CodeIgniter Status Change

问题:

Onclick the status will be changed to Done & again On click it will be changed to Not Done.

I'm unable to complete the Controller and Model.

View.php :

<td>
    <?php if ($row->task_status == 'todo') {echo "Not Done";} ?>
    <?php if ($row->task_status == 'done') {echo "Done";} ?>
</td>

DB :

`task_status` enum('notdone','done') NOT NULL

model.php :

public function change_status($id, $status)
    {
        $this->db->where('id', $id);
        $this->db->update('table_name')
     }

controller:

public function change_status()
        {
            $status = array( 'task_status' =>);

            $this->model_users->change_status_model($status, $this->input->post('id'));

            redirect('main/members');
        }

回答1:

Set task_status column

public function change_status_model($task_status,$id)
{
    $this->db->set('task_status',$task_status)        
    $this->db->where('id', $id);
    $this->db->update('table_name')
 }