sql - Laravel:使用代码块在客户对象上设置字段时出现 SQL 错误

Question

我收到以下错误。

SQLSTATE[HY000]: General error: 1364 Field 'code' doesn't have a default value (SQL: insert into coupons (updated_at, created_at) values (2019-12-23 14:06:02, 2019-12-23 14:06:02))

我做了一些调试，发现它来自以下代码块，但无法说出原因。

if ($customer && is_null($customer->referral_code)) {
    $coupon = new Coupon;
    $coupon->generateReferralCoupon($customer);
    $coupon->save();
    $customer->referral_code = $coupon->code;
    $customer->save();
}

添加 referral_code 的迁移如下。

class AddReferralInfoToShopUsersTable extends Migration
{
    public function up()
    {
        Schema::table('shop_users', function (Blueprint $table) {
            $table->text('referral_code')->nullable();
            $table->integer('referral_uses')->nullable();
            $table->integer('referral_revenue')->nullable();
            $table->index(['referral_code']);
        });
    }
}

Answer 1

查看错误代码，您似乎错过了对 code 属性的分配，或者您尚未将 code 放入 Coupon 模型中的可填充数组中.

很可能是这样:

$coupon->generateReferralCoupon($customer);

你应该使用:

$coupon->code = $coupon->generateReferralCoupon($customer);