我需要帮助合并AngularJS中的两个对象:)
我正在使用trakt.tv API(http://docs.trakt.apiary.io/)来提取历史数据。 这将返回用户观看的电影和剧集列表(请参阅:http://docs.trakt.apiary.io/#reference/sync/get-history)
正如您所看到的,它不包含特定电影或剧集的用户评分。 但有一种方法可以获得电影和电视节目的所有用户评级等。 (见http://docs.trakt.apiary.io/#reference/sync/get-ratings)
所以我想要做的是将用户电影/剧集评分与历史列表中的电影/剧集相匹配,但我无法理解它应该如何完成。
示例“历史”对象:
[
{
"id": 2008588422,
"watched_at": "2016-05-17T10:36:12.000Z",
"action": "watch",
"type": "movie",
"movie": {
"title": "Batman v Superman: Dawn of Justice",
"year": 2016,
"ids": {
"trakt": 129583,
"slug": "batman-v-superman-dawn-of-justice-2016",
"imdb": "tt2975590",
"tmdb": 209112
}
}
},
{
"id": 1995814508,
"watched_at": "2016-05-09T22:39:47.000Z",
"action": "checkin",
"type": "movie",
"movie": {
"title": "Dirty Grandpa",
"year": 2016,
"ids": {
"trakt": 188691,
"slug": "dirty-grandpa-2016",
"imdb": "tt1860213",
"tmdb": 291870
}
}
},
{
"id": 2005359787,
"watched_at": "2016-05-09T01:00:00.000Z",
"action": "watch",
"type": "episode",
"episode": {
"season": 6,
"number": 3,
"title": "Oathbreaker",
"ids": {
"trakt": 1989021,
"tvdb": 5579003,
"imdb": "tt4131606",
"tmdb": 1186952,
"tvrage": 1065908650
}
},
"show": {
"title": "Game of Thrones",
"year": 2011,
"ids": {
"trakt": 1390,
"slug": "game-of-thrones",
"tvdb": 121361,
"imdb": "tt0944947",
"tmdb": 1399,
"tvrage": 24493
}
}
}
]
示例“评级”对象:
[
{
"rated_at": "2016-05-17T10:36:28.000Z",
"rating": 7,
"type": "movie",
"movie": {
"title": "Batman v Superman: Dawn of Justice",
"year": 2016,
"ids": {
"trakt": 129583,
"slug": "batman-v-superman-dawn-of-justice-2016",
"imdb": "tt2975590",
"tmdb": 209112
}
}
},
{
"rated_at": "2016-04-05T15:55:36.000Z",
"rating": 8,
"type": "movie",
"movie": {
"title": "You Don't Mess With the Zohan",
"year": 2008,
"ids": {
"trakt": 5835,
"slug": "you-don-t-mess-with-the-zohan-2008",
"imdb": "tt0960144",
"tmdb": 10661
}
}
},
{
"rated_at": "2016-05-24T16:19:54.000Z",
"rating": 8,
"type": "episode",
"episode": {
"season": 6,
"number": 3,
"title": "Oathbreaker",
"ids": {
"trakt": 1989021,
"tvdb": 5579003,
"imdb": "tt4131606",
"tmdb": 1186952,
"tvrage": 1065908650
}
},
"show": {
"title": "Game of Thrones",
"year": 2011,
"ids": {
"trakt": 1390,
"slug": "game-of-thrones",
"tvdb": 121361,
"imdb": "tt0944947",
"tmdb": 1399,
"tvrage": 24493
}
}
}
]
通缉结果:
[
{
"id": 2008588422,
"rated_at": "2016-05-17T10:36:28.000Z",
"rating": 7,
"watched_at": "2016-05-17T10:36:12.000Z",
"action": "watch",
"type": "movie",
"movie": {
"title": "Batman v Superman: Dawn of Justice",
"year": 2016,
"ids": {
"trakt": 129583,
"slug": "batman-v-superman-dawn-of-justice-2016",
"imdb": "tt2975590",
"tmdb": 209112
}
}
},
{
"id": 1995814508,
"watched_at": "2016-05-09T22:39:47.000Z",
"action": "checkin",
"type": "movie",
"movie": {
"title": "Dirty Grandpa",
"year": 2016,
"ids": {
"trakt": 188691,
"slug": "dirty-grandpa-2016",
"imdb": "tt1860213",
"tmdb": 291870
}
}
},
{
"id": 2005359787,
"rated_at": "2016-05-24T16:19:54.000Z",
"rating": 8,
"watched_at": "2016-05-09T01:00:00.000Z",
"action": "watch",
"type": "episode",
"episode": {
"season": 6,
"number": 3,
"title": "Oathbreaker",
"ids": {
"trakt": 1989021,
"tvdb": 5579003,
"imdb": "tt4131606",
"tmdb": 1186952,
"tvrage": 1065908650
}
},
"show": {
"title": "Game of Thrones",
"year": 2011,
"ids": {
"trakt": 1390,
"slug": "game-of-thrones",
"tvdb": 121361,
"imdb": "tt0944947",
"tmdb": 1399,
"tvrage": 24493
}
}
}
]
基本上,评分数据应添加到历史对象内的相应电影和剧集中。
angular.merge或.extend没有给出想要的结果,这些看起来非常基本看文档(https://docs.angularjs.org/api/ng/function/angular.merge)
欢迎所有帮助! :)
由于
答案 0 :(得分:1)
在op的评论之后,ES6不是一个选项,我创建了一个与find
辅助方法相当的ES5,以模仿ES6的发现。
var merged = history.map(function (h) {
var x = find(ratings, function (r) {
return comparator(h, r);
});
return x ? angular.merge(h, x) : h;
});
/*
Utility fn to get array.find style behaviour
*/
function find(arr, fn) {
if (!Array.isArray(arr))
return undefined;
for(var i = 0; i < arr.length; i++){
if (fn(arr[i]))
return arr[i];
}
}
在我的评论中,我说你可以使用ES5的array.some
然而我撒了谎。如果单个匹配符合您的条件(适用于过滤器),some
将返回true,但我们需要实际对象。
幸运的是,ES6再次使用find为我们节省了费用; (您可以在ES5中使用过滤器,但这会为我们提供一个数组)
因此,这样的事情应该很容易。
let merged = history.map(h => {
let x = ratings.find(r => comparator(r, h));
return x ? angular.merge(h, x) : h;
});
function comparator(review, history) {
return review[review.type].ids.trakt === history[history.type].ids.trakt;
}
一如既往这是ES6所以IE也可能不会出现。您可以通过像babel这样的东西来运行ES6,转换成ES5,或者使用各种for loops
来完成上述所有操作。