Mongo：查询以获取满足多个条件的对象列表

Question

我在编写查询以从结构中获取一些数据时遇到问题。我必须使用多个条件进行查询。我的标准：ID，期限，价格，主题。 例如，使用以下命令查询我的结构：

条件：

 id: [ObjectId("234434")]
 term: "24"
 price: 80 // return only this data that have price lower than 80
 topics: ["topic1", "topic2", "topic3"]

这是我经过简化的数据库结构：

{
   "_id":{
      "$oid":"234434"
   },
   "name":"name1",
   "posts":[
      {
         "name":"post1",
         "price":{
            "$numberDouble":"17.5"
         },
         "term":"24",
         "topics":[
            {
               "name":"topic1",
               "desc":"desc"
            },
            {
               "name":"topic23423",
               "desc":"desc"
            }
         ],
         "extraPosts":[
            {
               "name":"extra post 1",
               "description":"desc extra ",
               "topics":[
                  {
                     "name":"topic2",
                     "desc":"desc"
                  },
                  {
                     "name":"topic566566",
                     "desc":"desc"
                  }
               ]
            },
            {
               "name":"extra post 2",
               "description":"desc extra ",
               "topics":[
                  {
                     "name":"topic3",
                     "desc":"desc"
                  },
                  {
                     "name":"topic56656566",
                     "desc":"desc"
                  }
               ]
            },
            {
               "name":"extra post 3",
               "description":"desc extra ",
               "topics":[
                  {
                     "name":"topic4324",
                     "desc":"desc"
                  },
                  {
                     "name":"topic56623456566",
                     "desc":"desc"
                  }
               ]
            }
         ]
      }
   ]
}

查询应返回所有带有搜索主题的帖子，如果没有帖子，则搜索extraPosts并返回包含搜索主题的主要和多余的帖子。 因此，首先通过按ID，按词条，按价格，最后按主题过滤来限制结构。 因此，在这种情况下，它应该返回：

{
   "_id":{
      "$oid":"234434"
   },
   "name":"name1",
   "posts":[
      {
         "name":"post1",
         "price":{
            "$numberDouble":"17.5"
         },
         "term":"24",
         "topics":[
            {
               "name":"topic1",
               "desc":"desc"
            },
            {
               "name":"topic23423",
               "desc":"desc"
            }
         ],
         "extraPosts":[
            {
               "name":"extra post 1",
               "description":"desc extra ",
               "topics":[
                  {
                     "name":"topic2",
                     "desc":"desc"
                  },
                  {
                     "name":"topic566566",
                     "desc":"desc"
                  }
               ]
            },
            {
               "name":"extra post 2",
               "description":"desc extra ",
               "topics":[
                  {
                     "name":"topic3",
                     "desc":"desc"
                  },
                  {
                     "name":"topic56656566",
                     "desc":"desc"
                  }
               ]
            }
         ]
      }
   ]
}

因为post1具有topic1，并且在extraPosts中搜索了所有主题：Extra post 1，extra post2。它不应该在post1中返回，extraPost的名称为：extra post 3，因为它不包含搜索到的主题之一。如果所有主题均不在发布中，并且不在他的其他帖子中，则不返回此帖子。如果所有topcs都在额外的帖子1和额外的帖子1中，并且在post1中没有搜索到的主题，它还应该返回带有extraPosts的post1：额外的帖子1，额外的帖子2。 在我的实际结构中，有许多带有id的对象和许多帖子。