Relay / GraphQL'如何解决'有效吗?

时间:2015-08-26 12:35:06

标签: javascript reactjs graphql relayjs graphql-js

我正在尝试使用Relay和GraphQL。当我在做模式时,我这样做:

let articleQLO = new GraphQLObjectType({
  name: 'Article',
  description: 'An article',
  fields: () => ({
    _id: globalIdField('Article'),
    title: {
      type: GraphQLString,
      description: 'The title of the article',
      resolve: (article) => article.getTitle(),
    },
    author: {
      type: userConnection,
      description: 'The author of the article',
      resolve: (article) => article.getAuthor(),
    },
  }),
  interfaces: [nodeInterface],
})

所以,当我要求这样的文章时:

{
  article(id: 1) {
    id,
    title,
    author
  }
}

它会对数据库进行3次查询吗?我的意思是,每个字段都有一个解析方法(getTitle,getAuthor ...),它向数据库发出请求。我做错了吗?

这是getAuthor的一个例子(我使用mongoose):

articleSchema.methods.getAuthor = function(id){
  let article = this.model('Article').findOne({_id: id})
  return article.author
}

0 个答案:

没有答案