check(); } public function rules(): array { return [ 'student_id' => ['nullable', 'integer', 'min:1'], 'guardian_id' => ['nullable', 'integer', 'min:1'], 'school_year' => ['nullable', 'string', 'max:20'], 'school_year_id' => ['prohibited'], 'family_id' => ['nullable', 'integer', 'min:1'], ]; } }