movie-night-api/app/Http/Requests/CreateInvitationRequest.php

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<?php
namespace App\Http\Requests;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Support\Facades\DB;
use Illuminate\Validation\Rule;
class CreateInvitationRequest extends FormRequest
{
/**
* Determine if the user is authorized to make this request.
*/
public function authorize(): bool
{
return true;
}
/**
* Get the validation rules that apply to the request.
*
* @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
*/
public function rules(): array
{
return [
'emails' => 'required|array',
'emails.*' => [
'required',
'email',
// They haven't been invited to the movie list
Rule::unique('invitations', 'email')
->where('movie_list_id', $this->input('movie_list_id')),
// The user isn't already a collaborator
Rule::notIn(
DB::table('movie_list_user')
->join('users', 'users.id', '=', 'movie_list_user.user_id')
->where('movie_list_id', $this->input('movie_list_id'))
->pluck('users.email')
->push($this->user()->email)
->toArray()
),
],
'movie_list_id' => 'required|exists:movie_lists,id',
];
}
public function messages()
{
return [
'emails.*.unique' => 'The email address is already invited to this movie list.',
'emails.*.not_in' => ':input is already a collaborator.',
];
}
}