update

app/Http/Controllers/Api/V1/CouponController.php

@@ -15,7 +15,7 @@ class CouponController extends AuthController
 {
     public function couponList()
     {
-        $data = Coupon::orderBy('id', 'desc')->paginate();
+        $data = Coupon::where('position_type', 1)->where('num', '>', 0)->orderBy('id', 'desc')->paginate();
 
         return out($data);
     }
@@ -28,8 +28,16 @@ class CouponController extends AuthController
         ]);
         $user = $this->user;
 
+        $coupon = Coupon::select(['num', 'position_type'])->where('id', $req['coupon_id'])->first();
+        if ($coupon['num'] <= 0) {
+            return out(null, 10001, '该优惠券数量不足');
+        }
+        if ($coupon['position_type'] == 2) {
+            return out(null, 10002, '该优惠券不能领取');
+        }
+
         if (UserCoupon::where('user_id', $user['id'])->where('coupon_id', $req['coupon_id'])->exists()) {
-            return out(null, 10001, '您已经领取过该优惠券了');
+            return out(null, 10003, '您已经领取过该优惠券了');
         }
 
         $add = Coupon::select(['id as coupon_id', 'name', 'title', 'desc', 'rules', 'icon', 'type', 'usable_type', 'money', 'discount', 'min_consume_amount', 'max_reduce_amount', 'expire_type', 'effective_days', 'start_time', 'end_time'])->where('id', $req['coupon_id'])->first()->getOriginal();
@@ -41,6 +49,8 @@ class CouponController extends AuthController
         $add['expire_time'] = $expire_time;
         UserCoupon::create($add);
 
+        Coupon::where('id', $req['coupon_id'])->decrement('num');
+
         return out();
     }