<?php
namespace App\Rules;
use App\Models\LessonTopic;
use Illuminate\Contracts\Validation\Rule;
class uniqueTopicInLesson implements Rule {
/**
* Create a new rule instance.
*
* @return void
*/
public function __construct($lesson_id, $topic_id = NULL) {
$this->lesson_id = $lesson_id;
$this->topic_id = $topic_id;
}
/**
* Determine if the validation rule passes.
*
* @param string $attribute
* @param mixed $value
* @return bool
*/
public function passes($attribute, $value) {
if ($this->topic_id == NULL) {
$count = LessonTopic::where('name', $value)->where('lesson_id', $this->lesson_id)->count();
return $count == 0;
}
$count = LessonTopic::where('name', $value)->where('lesson_id', $this->lesson_id)->whereNot('id', $this->topic_id)->count();
return $count == 0;
}
/**
* Get the validation error message.
*
* @return string
*/
public function message() {
return trans('topic_already_exists');
}
}