access object properties with names like integers

[caravanpetrol]

HY
is it possible to parse a json object with the following structure ? :

{
    "Films":{
        "135024":{
            "title":"Title"
        },
        "9902":{
            "title":"Title"
        },
    },
}

[herom]

yes, that's totally possible 👍

I'd recommend to use something like the following as model-description

const modelDescription = {
  __namespace: "Films",
  __transferKeys: true
}

this description along with your example data would output:

{
  "135024": {"title": "Title"},
  "9902":  {"title": "Title"}
}

[caravanpetrol]

Thanks
what about passing through the key properties 135024, 9902 (like ignoring them) and being able to continue the convertion (as child model description) ?

[herom]

I'm not quite sure if I fully understand your case, could you make up a short example what you expect to be the transformerd output?

[herom]

If you want to "get rid of the key properties", probably a "computed property" in the child model description is what you want?

Just an example, as I assume you want to have the "title"-objects all together in an array type of thing:

const modelDescription = {
  __namespace: "Films",
  films (data) {
    const dataKeys = Object.keys(data);
   
    return dataKeys.map((key) => data[key]);
  }
}

the output would look like:

{
  films: [
    {"title": "Title"}, 
    {"title", "Title"}
  ]
}

if you want to work with the converted array, you could extend your model description with a child like this:

const modelDescription = {
  __namespace: "Films",
  films (data) {
    const dataKeys = Object.keys(data);
    return dataKeys.map((key) => data[key]);
  },
  __children: {
    films: {
      // more computed properties or transforms here....
    }
  }
}

[caravanpetrol]

Very interesting tip !
That's the point, but I dont see how to compute all keys...
altough a got an Error: <cherrypie> Child "films" declared in __children but not in parent model description!
In a structured json like this, I can't figure how to compute keys (transform all key names)

{
  "Films": 
    "135024": {
      "title": "Title",
      "sessions": [
          {
            "Date": "201803031100",
            "Url": "http://www..."
          },
          {
            "Date": "201803031300",
            "Url": "http://www..."
          },
      ],
    },
    "9902": {
      "title": "Title",
      "sessions": [
          {
            "Date": "201803031500",
            "Url": "http://www..."
          },
          {
            "Date": "201803031700",
            "Url": "http://www..."
          },
      ],
    },
  },
}

[herom]

so, this is your data-structure on the input - what do you expect to be output after transformation?

[caravanpetrol]

input : several different data-structured jsons with various properties to rename (but the one above is ok for the rest)
output (the full json merging all data) :

{
"places" : [ 
	{
		"id": "id",
		"otherprops": "...",
		"events": [
			{
				"title": "Title",
				"other property key to convert": "value",
				"sessions": [
					{
						"date": "xv",
						"other": "xcv",
					},
					{
						"date": "",
						"other": "...",
					}
				]
			}
			{
				"title": "Title",
				"other": "...",
				"sessions": [
					{
						"date": "",
						"other": "...",
					},
					{
						"date": "",
						"other": "...",
					}
				]
			}
		]
	},
	{
		// an other place from another json
	},
]
}

[caravanpetrol]

re-indent

{
  "places": [
    {
      "id": "id",
      "otherprops": "...",
      "events": [
        {
          "title": "Title",
          "other property key to convert": "value",
          "sessions": [
            {
              "date": "xv",
              "other": "xcv"
            },
            {
              "date": "",
              "other": "..."
            }
          ]
        },
        {
          "title": "Title",
          "other": "...",
          "sessions": [
            {
              "date": "",
              "other": "..."
            },
            {
              "date": "",
              "other": "..."
            }
          ]
        }
      ]
    },
    {
      "an other place from another json": "..."
    }
  ]
}