在应用程序产品可以购买两次或更多

Question

已购买的提醒项目未显示，用户可以使用同一帐户再次购买该产品。卸载后他被指控两次。为什么没有显示“已购买商品”的提醒？

我正在使用离子1.x和plugin

这是我使用的代码：

var productIds = ["ch.tapsy.colosseo"];

  var spinner = '<ion-spinner icon="dots" class="spinner-stable"></ion-spinner><br/>';

  $scope.loadProducts = function() {

      console.log("loaded inapp products");


    if ($state.current.name === "info") {
      $http({
        method: "GET",
        url: "http://domain.ch/pois.php"
      }).then(function mySucces(response) {
        console.log("success");
      }, function myError(response) {
        $scope.errorinapp = "yes";
      });
    } else {
      $http({
        method: "GET",
        url: "http://domain.ch/pois.php"
      }).then(function mySucces(response) {
        console.log("success");
      }, function myError(response) {
        $state.go("inappe")
      });
    }

    $ionicLoading.show({
      template: spinner + 'Loading...'
    });
    inAppPurchase
      .getProducts(productIds)
      .then(function(products) {
        $ionicLoading.hide();
        $scope.products = products;
      })
      .catch(function(err) {
        $ionicLoading.hide();
        console.log(err);
      });
  };


  $scope.buy = function(productId) {
      console.log("buy clicked");

    $ionicLoading.show({
      template: spinner + 'Acquisto in corso...'
    });
    inAppPurchase
      .buy(productId)
      .then(function(data) {
        console.log(JSON.stringify(data));
        console.log('consuming transactionId: ' + data.transactionId);
        return inAppPurchase.consume(data.type, data.receipt, data.signature);
      })
      .then(function() {
        localStorage.setItem('sold', 'true');
        save("isUnlocked", true);
        $ionicLoading.hide();
        if (state == "l2") {
          $state.go("12")
        }
        if (state == "l1") {
          $state.go("11")
        }
        if (state == "l5") {
          $state.go("15")
        }
      })
      .catch(function(err) {
        $ionicLoading.hide();
        console.log(err);
      });

  };

  $scope.restore = function() {


    console.log("IT WORKS");


    $ionicLoading.show({
      template: spinner + 'Ripristino degli acquisti in corso...'
    });
    inAppPurchase
      .restorePurchases()
      .then(function(purchases) {
        $ionicLoading.hide();
        console.log(purchases);
        if (!purchases.length) {
           console.log("Sorry, there's nothing to restore. You haven't purchased anything using this account before!");
         } else {
             localStorage.setItem('sold', 'true');
             save("isUnlocked", true);
             $state.go("12")
         }
      })
      .catch(function(err) {
        $ionicLoading.hide();
        console.log(err);
        $ionicPopup.alert({
          title: 'Something went wrong',
          template: 'Check your console log for the error details'
        });
      });
  };