小编ImA*_*lay的帖子

我正在尝试创建一个仅包含特定组项的列表.例如,我自己在数据库控制台(包括组的键)中创建/编写了"fruits"节点和"groups"节点.

对Firebase来说相对较新,所以仍然试图将我的数据结构展平.

JSON(显示"水果"和"组")如下所示:

 {
  "fruits" : {
    "apple" : {
      "color" : "appleColorValueHere",
      "groups" : {
        "GroupABCKey" : true,
        "GroupXYZKey" : true
      },
      "origin" : "appleOriginValueHere",
      "size" : "appleSizeValueHere"
    },
    "orange" : {
      "color" : "orangeColorValueHere",
      "groups" : {
        "GroupABCKey" : true,
        "GroupXYZ" : true
      },
      "origin" : "orangeOriginValueHere",
      "size" : "orangeSizeValueHere"
    },
    "strawberry" : {
      "color" : "strawberryColorValueHere",
      "groups" : {
        "GroupJKLKey" : true
      },
      "origin" : "strawberryOriginValueHere",
      "size" : "strawberrySizeValueHere"
    }
  },
  "groups" : {
    "GroupABCKey" : { …