'required|string|max:50|unique:task_payments,payment_no', 'order_id' => 'required|integer', 'user_id' => 'required|integer', 'payment_transaction_id' => 'nullable|integer', 'amount' => 'required|numeric|min:0', 'pay_type' => 'required|integer|in:0,1,2', 'status' => 'required|integer|in:0,1,2', 'paid_at' => 'nullable|date', 'refund_at' => 'nullable|date', ]; } public function messages(): array { return [ 'payment_no.required' => '支付单号不能为空', 'payment_no.unique' => '支付单号已存在', 'order_id.required' => '订单不能为空', 'user_id.required' => '用户不能为空', 'amount.required' => '金额不能为空', 'pay_type.required' => '支付方式不能为空', 'status.required' => '状态不能为空', ]; } }