Codeigniter活动记录批量更新，其中where子句等于数组索引

Question

I have an array of post data ($data) in codeigniter that looks like the attached image.

And a database that looks like:

id: 3 val: 37.10119357072203

-

id: 4 val: -122.06634521484374

I want to insert the array value into the 'val' field based on the array key matching the database 'id' field. How do I do this using codeigniter's update_batch. My model is currently:

public function edit_config($data){
        $this->db->update_batch('extra_config', $data,'val');
    }

but I get the error:

One or more rows submitted for batch updating is missing the specified index.

---

Answer 1

You have to prepare your data its not normal not to touch it from the incoming request..

public function edit_config($data){
     $updateData = array();
     foreach($data['val'] as $key=>$value) {
         $updateData[] = array('id'=>$key, 'val'=>$value);
     }

     $this->db->update_batch('extra_config', $updateData,'id');
}