Parse platform 如何在beforeSave中获取object的objectId

客户提交一个新的配方。recipe对象包括一组菜系，这些菜系类似于此菜系所属的类别

在beforeSave Cloud Code函数中，我想在一个单独的表中创建包含菜谱和菜系的条目

换句话说，这些是我的表格：

烹饪：

配方：

菜谱：

当一个新菜谱出现时，我想获取它的烹饪ID并在CuisineRecipe表中创建条目

但是，在我的代码中，request.object.id返回undefined

我猜这可能是因为在保存之前它没有ID。但是，我尝试更改为afterSave，但仍然不起作用，即没有任何内容保存到DB

以下是我的云代码：

var _ = require('underscore');

Parse.Cloud.beforeSave("Recipe", function(request, response) {
    // CREATE CuisineRecipe ENTRIES

    //getCuisines
    var cuisines = request.object.get("cuisines");
    // FOR EACH cuisines
    var promise = Parse.Promise.as();
    _.each(cuisines, function(CuisineObj){
        console.log(CuisineObj.text);

        // Verify that Cuisine exists
        var CuisineQuery = new Parse.Query("CuisinePublic");
        CuisineQuery.equalTo("CuisineId", CuisineObj.text);
        promise = promise.then(function(){
            return CuisineQuery.find({
                success: function(results){
                    console.log("results: " + results);
                    // If results is 1, it exists, everything is good. Proceed to adding CuisineRecipe entry
                    if (results.length == 1){
                        var CuisineRecipe = Parse.Object.extend("CuisineRecipe");
                        var CuisineRecipe = new CuisineRecipe();
                        CuisineRecipe.set("CuisineId", CuisineObj.text);
                        CuisineRecipe.set("Cuisine", results[0].id);
                        CuisineRecipe.set("Recipe", request.object.id);
                        CuisineRecipe.save();
                    }
                },
                error: function(results){
                    console.log("Error");
                    console.log("results: " + results);
                }
            });
        });

        return promise;
    });
    promise.then(function(){
        response.success();
    });
});

---

我不一定了解您的不同类及其关系，但对于request.object.id，您需要指定类似request.object.getcuisines.id的类，我想获取正在保存的菜谱对象的id

objectId | name | ingredient | author |
---------------------------------------

objectId | cuisine | recipe |
-----------------------------

var _ = require('underscore');

Parse.Cloud.beforeSave("Recipe", function(request, response) {
    // CREATE CuisineRecipe ENTRIES

    //getCuisines
    var cuisines = request.object.get("cuisines");
    // FOR EACH cuisines
    var promise = Parse.Promise.as();
    _.each(cuisines, function(CuisineObj){
        console.log(CuisineObj.text);

        // Verify that Cuisine exists
        var CuisineQuery = new Parse.Query("CuisinePublic");
        CuisineQuery.equalTo("CuisineId", CuisineObj.text);
        promise = promise.then(function(){
            return CuisineQuery.find({
                success: function(results){
                    console.log("results: " + results);
                    // If results is 1, it exists, everything is good. Proceed to adding CuisineRecipe entry
                    if (results.length == 1){
                        var CuisineRecipe = Parse.Object.extend("CuisineRecipe");
                        var CuisineRecipe = new CuisineRecipe();
                        CuisineRecipe.set("CuisineId", CuisineObj.text);
                        CuisineRecipe.set("Cuisine", results[0].id);
                        CuisineRecipe.set("Recipe", request.object.id);
                        CuisineRecipe.save();
                    }
                },
                error: function(results){
                    console.log("Error");
                    console.log("results: " + results);
                }
            });
        });

        return promise;
    });
    promise.then(function(){
        response.success();
    });
});