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application/api/validate/GetCoupon.php

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+<?php
+// +----------------------------------------------------------------------
+// | likeshop100%开源免费商用商城系统
+// +----------------------------------------------------------------------
+// | 欢迎阅读学习系统程序代码，建议反馈是我们前进的动力
+// | 开源版本可自由商用，可去除界面版权logo
+// | 商业版本务必购买商业授权，以免引起法律纠纷
+// | 禁止对系统程序代码以任何目的，任何形式的再发布
+// | gitee下载：https://gitee.com/likeshop_gitee
+// | github下载：https://github.com/likeshop-github
+// | 访问官网：https://www.likeshop.cn
+// | 访问社区：https://home.likeshop.cn
+// | 访问手册：http://doc.likeshop.cn
+// | 微信公众号：likeshop技术社区
+// | likeshop团队 版权所有 拥有最终解释权
+// +----------------------------------------------------------------------
+// | author: likeshopTeam
+// +----------------------------------------------------------------------
+namespace app\api\validate;
+use think\Db;
+use think\Validate;
+
+class GetCoupon extends Validate{
+    protected $rule = [
+        'id'            => 'require|checkCoupon',
+    ];
+    protected $message = [
+        'id.require'    => '请选择优惠券',
+    ];
+    public function checkCoupon($value,$rule,$data){
+
+        $coupon = Db::name('coupon')->where(['id'=>$value,'status'=>1,'del'=>0,'get_type'=>1])->find();
+        if(!$coupon){
+            return '优惠券已下架';
+        }
+        $now = time();
+        if($coupon['send_time_start'] > $now || $coupon['send_time_end'] < $now){
+            return '未到领取时间';
+        }
+
+        //限量发放，验证是否达到数量
+        if($coupon['send_total_type'] == 2){
+            $total_coupon = Db::name('coupon_list')->where(['coupon_id'=>$value,'del'=>0])->count();
+            if($total_coupon >= $coupon['send_total']){
+                return '优惠券已领完';
+            }
+        }
+        //限制每人领取次数
+        if($coupon['get_num_type'] == 2){
+
+            $total_coupon = Db::name('coupon_list')->where(['user_id'=>$data['user_id'],'coupon_id'=>$value,'del'=>0])->count();
+            if($total_coupon >= $coupon['get_num']) {
+                return '您已达到领取次数了';
+            }
+
+        }
+        if($coupon['get_num_type'] == 3){
+            $today = date("Y-m-d");
+            $tomorrow = date("Y-m-d",strtotime("+1 day"));
+            $total_coupon = Db::name('coupon_list')->where(['user_id'=>$data['user_id'],'coupon_id'=>$value,'del'=>0])
+                ->whereTime('create_time', 'between',[$today,$tomorrow])
+                ->count();
+
+            if($total_coupon >= $coupon['get_num']) {
+                return '您已达到领取次数了';
+            }
+        }
+
+        return true;
+
+    }
+}