小编Dav*_* C.的帖子

我需要删除嵌入在下面的Doc中的一个"答案"对象.我有我正在寻找答案的文字.我没有问题的索引或我需要深入研究数组的答案.

例如,我知道我试图深入研究的问题是"这是一个问题".我想删除的答案是"答案一".

你会怎么做呢？

以下是MongoDB Doc示例:(测验有问题;问题有答案)

{
    name: "Sample Quiz",
    categories: [
      { name: "testcategory1", description: "this is a test category" }
      ,{ name: "categoryTWO", description: "the second category" }
    ],

    questions: [

      { text: "This is a question."
        ,answers: [
          {text: "Answer One", affected_categories: "testcategory1"}
          ,{text: "Answer Two", affected_categories: "testcategory1"}
          ,{text: "Answer Three", affected_categories: "categoryTWO"}
        ]
      }

      ,{ text: "This is the second question."
        ,answers: [
          {text: "Mepho One", affected_categories: "testcategory1"}
          ,{text: "Answer Toodlydoo", affected_categories: "testcategory1"}
          ,{text: "Lehmen Sumtin", affected_categories: …