'require|max:50', 'cate_id' => 'require|integer|gt:0', 'cover' => 'max:255', 'summary' => 'max:255', 'author' => 'max:50', 'sort' => 'integer|egt:0', 'status' => 'in:0,1' ]; protected array $message = [ 'title.require' => '文章标题不能为空', 'title.max' => '文章标题最多50个字符', 'cate_id.require' => '分类ID不能为空', 'cate_id.integer' => '分类ID必须为整数', 'cate_id.gt' => '分类ID必须大于0', 'cover.max' => '封面路径最多255个字符', 'summary.max' => '简介最多255个字符', 'author.max' => '作者最多50个字符', 'sort.integer' => '排序必须为整数', 'sort.egt' => '排序不能小于0', 'status.in' => '状态值错误' ]; public function cate() { return $this->belongsTo(ArticleCates::class, 'cate_id'); } public function getCateNameAttr($value, $data) { return $this->cate ? $this->cate->title : ''; } }