如何插入多个ID并保存在数据库中

Question

I'm using Laravel 7 and trying to make a automation system.
For send Letters, I have to be able to choose a few receivers.

Here is Letter table:

As you can see, I have recieve_id .
I can get IDs, but I don't know how to save IDs in my database.

This is my select:

<select class="col-12 border mt-2 pt-2" multiple="multiple" name="recieve_id[]">
  @foreach($users as $user)
    <option value="{{ $user->id }}">{{ $user->name }}</option>
  @endforeach
</select>

This is my Controller:

Letter::create([
  'indicator_id' => $request['indicator_id'],
  'sender_id' => auth()->user()->id,
  'recieve_id' => $request['recieve_id'],
  'title' => $request['title'],
  'image' => 'default.png',
  'description' => $request['description'],
  'date' => $request['date'],
  'text' => $request['text'],
]);
return redirect(route('Letter.index'));

Edit:

Here is Table structure:

Edit 2:

Here is my destory function for letters: Destory Function

Answer 1

If I am understanding your question right, the code you have written in the controller is not working well or not creating database entry. Is it right?

If yes, then can you provide me with the table structure you are using for Letter as well as the migration you have written for that particular table?

I am not sure but it seems like you are passing an array $reciever_id instead of string and/or JSON string.

Also, if the table in the screenshot you provided, is to be used as the log, then I would suggest to iterate through $receiver_id and make a separate entry for each of the receiver if possible. This could be a better approach I think.

EDIT: After reading your comment, I am modifying my answer as below: In that case, you should either handle the request with foreach loop as below:

$receiver_ids = $request->receive_ids
foreach($receiver_ids as $receiver_id)
{
    Letter::create([
        'indicator_id' => $request['indicator_id'],
        'sender_id' => auth()->user()->id,
        'recieve_id' => $receiver_id,
        'title' => $request['title'],
        'image' => 'default.png',
        'description' => $request['description'],
        'date' => $request['date'],
        'text' => $request['text'],
    ]);
}

Put this code in your controller. And let me know.