我有2个表格用于“课程模型”中的“系列”和“课程”。我将课程与某个系列相关联,我创建了一个自定义验证规则,以防止在同一系列中重复在课程表中使用相同的Episode_number,并且效果很好,但是在更新时,我希望排除此课程。 / p>
这是我的课程表:
public function up()
{
Schema::create('lessons', function (Blueprint $table) {
$table->increments('id');
$table->unsignedInteger('series_id');
$table->string('title');
$table->text('description');
$table->unsignedInteger('episode_number');
$table->unsignedInteger('video_id')->unique();
$table->boolean('premium')->default(0);
$table->timestamps();
$table->unique(['series_id', 'episode_number']);
});
}
这是课程模型中的口才关系函数:
public function series()
{
return $this->belongsTo(Series::class);
}
这是我的自定义验证规则:
<?php
namespace App\Rules;
use Illuminate\Contracts\Validation\Rule;
use Illuminate\Support\Facades\DB;
class uniqueSeriesLessonValidation implements Rule
{
public $id;
/**
* Create a new rule instance.
*
* @return void
*/
public function __construct($id)
{
$this->id = $id;
}
/**
* Determine if the validation rule passes.
*
* @param string $attribute
* @param mixed $value
* @return bool
*/
public function passes($attribute, $value)
{
$count = DB::table('lessons')->where('episode_number', $value)
->where('series_id', $this->id)
->count();
if ($count === 0){
return true;
}
return false;
}
/**
* Get the validation error message.
*
* @return string
*/
public function message()
{
return 'The lesson title should not be repeated in the same series twice.';
}
}
这是我在创建新课程时的验证,可以很好地防止同一系列两次重复同一课程的Episode_number:
public function rules(Request $request)
{
return [
'title' => 'required',
'description' => 'required',
'episode_number' => ['required',new uniqueSeriesLessonValidation($request->series_by_id->id)],
'video_id' => 'required|unique:lessons|numeric'
];
}
这是我在更新课程时的验证,问题是:
public function rules(Request $request)
{
return [
'title' => 'required',
'description' => 'required',
'episode_number' => ['required',new uniqueSeriesLessonValidation($request->series_by_id->id),$request->lesson->id],
'video_id' => 'required'
];
}
答案 0 :(得分:0)
这是因为它认为$request->lesson->id
是一个单独的角色。如果您还想将该值传递给角色,请作为参数来执行。
new uniqueSeriesLessonValidation($request->series_by_id->id,$request->lesson->id)
答案 1 :(得分:0)
谢谢大家,我通过在更新时添加第二个参数来解决它,并且在接收到该参数时通过更改规则使创建为空