|string> */ public function rules(): array { $rules = [ 'warehouse_id' => 'required|integer|exists:warehouses,id', 'supplier_id' => 'required|integer|exists:suppliers,id', 'brand_id' => 'nullable|integer|exists:brands,id', 'expected_arrival' => 'required|date', 'shipping_method' => 'required|in:express,logistics,self', 'freight' => 'nullable|numeric|min:0', 'category' => 'nullable|string|max:50', 'remark' => 'nullable|string|max:500', ]; // 如果是创建草稿，只需要基础信息 if ($this->is('api/purchase-orders/draft')) { return $rules; } // 如果是更新采购单（添加商品），需要商品项 if ($this->isMethod('put') || $this->isMethod('patch')) { return array_merge($rules, [ 'items' => 'required|array|min:1', 'items.*.sku_code' => 'required|string|max:50', 'items.*.quantity' => 'required|integer|min:1', 'items.*.price' => 'required|numeric|min:0', ]); } return $rules; } /** * Get custom messages for validator errors. */ public function messages(): array { return [ 'warehouse_id.required' => '请选择仓库', 'supplier_id.required' => '请选择供应商', 'expected_arrival.required' => '请选择预计到货日期', 'shipping_method.required' => '请选择运输方式', 'items.required' => '请至少添加一个商品', 'items.*.sku_code.required' => '商品编码不能为空', 'items.*.quantity.required' => '商品数量不能为空', 'items.*.price.required' => '商品单价不能为空', ]; } }