在Eloquent中更新自定义时间戳字段

Question

I want to update a custom timestamp field and therefore wrote this function

public function touchDelivery() {
    $this->delivery = $this->freshTimestamp();
    return $this->save();
}

public function pushSuccess($id) {
    return Message::where('id', '=', $id)->touchDelivery();
}

But when executing Laravel complains:

Call to undefined method Illuminate\Database\Query\Builder::touchDelivery()

Answer 1

I am guessing that this code is in your Eloquent file. There's problem with return Message::where('id', '=', $id)->touchDelivery();

First you need to get all the messages and then for each messages, you need to call the method. Something like this.

public function pushSuccess($id) {
   $messages = Message::where('id', '=', $id)->get();
   foreach($messages as $message)
         $message->touchDelivery();
   ...
}

Let me know if that works for you.