Question

您好我正在构建一个带有rails和angular的应用程序。我继续在执行此代码时出现类型错误

$scope.makeTip = function(tip){
    data = {
      tip: { 
        bookies: tip.bookies, 
        user_id: $scope.currentUser.id
      }, 
      prediction: $scope.madePredictions
    },
    $http.post('/tips.json', data).success(function(data){
      console.log(data)
    });
  };
  $http.get('/predictions/fixtures_this_week').success(function(response){
    $scope.fixturesThisWeek = response.data;
  });

  //Updating the scores the dependent of on the type of bet id
  $scope.addPrediction = function(prediction, fixtureId) {
    data = {};
    data.fixtureId = fixtureId;
    data.predictionGoalsHomeTeam = prediction.scores.predictionGoalsHomeTeam[fixtureId];
    data.predictionGoalsAwayTeam = prediction.scores.predictionGoalsAwayTeam[fixtureId];
    data.typeOfBet = prediction.typeOfBetId[fixtureId];
    $scope.madePredictions.push(data);
    console.log($scope.madePredictions)
  }
}]);

但是我认为问题源于我的提示控制器中的方法，可能是在第4行

def create
    @tip = Tip.new(params[:tip])
    @tip.save
    @prediction = Prediction.find(params[:prediction][:fixtureId])
    @prediction.predictionGoalsHomeTeam = params[:prediction][:predictionGoalsHomeTeam]
    @prediction.predictionGoalsHomeTeam = params[:prediction][:predictionGoalsAwayTeam]
    @prediction.save
    @tip.predictions << @prediction
    respond_with(@tip)
  end

有没有人知道如何处理这种类型错误？

由于

Answer 1

一些错误..在你的create方法中，你连续两次分配@ prediction.predictionGoalsHomeTeam。

@prediction.predictionGoalsHomeTeam = params[:prediction][:predictionGoalsHomeTeam]
@prediction.predictionGoalsHomeTeam = params[:prediction][:predictionGoalsAwayTeam]

因此，您需要将最后一个更改为AwayTeam，因为这是您从params获得的。

你的主要问题是params [：prediction]是一个数组，所以Prediction.find(params[:prediction][:fixtureId])不会工作，因为你试图抓住那个不存在的数组的fixtureId。您需要遍历params[:prediction]并分别在@tip.predictions中存储每个对象。试试这个：

  def create
    @tip = Tip.new(params[:tip])
    @tip.save
    params[:prediction].each do |p|
      @prediction = Prediction.find(p[:fixtureId])
      @prediction.predictionGoalsHomeTeam = p[:predictionGoalsHomeTeam]
      @prediction.predictionGoalsAwayTeam = p[:predictionGoalsAwayTeam]
      @prediction.save
      @tip.predictions << @prediction
    end
    respond_with(@tip)
  end

TypeError - 没有将Symbol隐式转换为Integer

1 个答案: