领取优惠券

app/Controller/CouponController.php

@@ -79,7 +79,7 @@ class CouponController extends BaseController
                     'receive_type'          => $receiveType
                 ]
             )->first();
-            //TODO 会有超发情况
+
             $cr                        = new CouponRec;
             $cr->user_id               = $userId;
             $cr->system_coupon_user_id = $cp->id;
@@ -90,15 +90,22 @@ class CouponController extends BaseController
             $cr->status                = 0;
             $cr->update_time           = $now;
             $cr->receive_type          = $receiveType;
-            if ($test&&($cp->id%2)) {
+            if ($test && ($cp->id % 2)) {
                 $fail[] = $cp;
             } else {
-                if ($cr->save()) {
+                //TODO 会有超发情况
+                //如果优惠卷库存小于等于已领取的数量, 则返回领取失败的优惠券
+                if ($cp->inventory<=$cp->inventory_use||$cp->inventory<=($cp->inventory_use+$cr->number)){
+                    $fail[] = $cp;
+                }else{
+                    $cp->inventory_use += $cr->number;//记录已领取的数量
+                    if ($cr->save()&&$cp->save()) {
                         $success[] = $cp;
                     } else {
                         $fail[] = $cp;
                     }
                 }
+            }
 
         }