python - 如何使用python合并包含数组的json对象？

Question

我有两个 json 文件，其中包含各种级别的属性。我想编写一个 python 脚本来替换现有属性并添加缺失的属性，但保留所有其他属性。

到目前为止，在我的尝试中，原始文件的整个“配置”数组都被覆盖，包括所有属性。我能找到的所有示例都显示了没有数组的对象的合并。任何帮助将不胜感激。

原文:

{
  "configurations": [
    {
      "this-needs-to-stay": {
        "properties": {
          "some_property": "EXISTING"
        }
      }
    },
    {
      "this-needs-to-be-updated": {
        "properties": {
          "this.would.stay": "EXISTING",
          "this.wont.be.overwritten": "EXISTING"
        }
      }
    }
  ],
  "other-values-1": [
    {
      "components": [
        {
          "name": "EXISTING"
        }
      ],
      "name": "somename"
    }
  ],
  "other-values-2": {
    "randomProperties": {
      "type": "random"
    },
    "and_so_on": "you_get_the_point"
  }
}

应添加到原始数据的其他数据:

{
  "configurations" : [
    {
      "this-would-be-added": {
        "properties": {
          "some-property": "ADDED"
        }
      }
    },
    {
      "this-needs-to-be-updated": {
        "properties": {
          "this.would.stay": "CHANGED",
          "this.would.be.added": "ADDED"
        }
      }
    }
  ]
}

结果是两者在属性级别上的合并:

{
  "configurations": [
    {
      "this-would-be-added": {
        "properties": {
          "some-property": "ADDED"
        }
      }
    },
    {
      "this-needs-to-stay": {
        "properties": {
          "some_property": "EXISTING"
        }
      }
    },
    {
      "this-needs-to-be-updated": {
        "properties": {
          "this.would.stay": "CHANGED",
          "this.would.be.added": "ADDED"
          "this.wont.be.overwritten": "EXISTING"
        }
      }
    }
  ],
  "other-values-1": [
    {
      "components": [
        {
          "name": "EXISTING"
        }
      ],
      "name": "somename"
    }
  ],
  "other-values-2": {
    "randomProperties": {
      "type": "random"
    },
    "and_so_on": "you_get_the_point"
  }
}

Answer 1

使用funcy.merge:

from funcy import merge

x, y = map(lambda d: {hash(frozenset(c.keys())):c for c in d}, (a['configurations'], b['configurations']))
merged = list(merge(x, y).values())

print(json.dumps(merged, indent=4))

结果:

[
    {
        "this-needs-to-stay": {
            "properties": {
                "some_property": "EXISTING"
            }
        }
    },
    {
        "this-needs-to-be-updated": {
            "properties": {
                "this.would.stay": "CHANGED",
                "this.would.be.added": "ADDED"
            }
        }
    },
    {
        "this-would-be-added": {
            "properties": {
                "some-property": "ADDED"
            }
        }
    }
]