如何将限制过滤器应用于cubeJs 的timeDimension 属性？

Question

Below is the scenario where I'm trying to apply a limit of 2 using cubejs. Here is the json query for this :

{
    "measures": [
        "actors.actorscount"
    ],
    "timeDimensions": [
        {
            "dimension": "actors.createdAt",
            "granularity": "month",
            "dateRange": "Last quarter"
        }
    ],
    "dimensions": [
        "actors.genre"
    ],
    "filters": []
}

And after applying limit=2 to below query, I'm getting below bar-graph response:

{
        "measures": [
            "actors.actorscount"
        ],
            "timeDimensions": [
                {
                    "dimension": "actors.createdAt",
                    "granularity": "month",
                    "dateRange": "Last quarter"
                }
            ],
                "dimensions": [
                    "actors.genre"
                ],
                    "filters": [],
                    "limit":2
    }

and the current bar-graph I'm getting as :

Expecting bar-graph response after applying limit :

so, what should be done to get the correct bar-graph response?

Answer 1

Such result can be achieved in 2 steps:

First to get top 2 dimensions without time granularity:

{
    "measures": [
        "actors.actorscount"
    ],
    "timeDimensions": [
        {
            "dimension": "actors.createdAt",
            "dateRange": "Last quarter"
        }
    ],
    "dimensions": [
        "actors.genre"
    ],
    "order": { "actors.actorscount": "desc" },
    "limit": 2
}

Then use two top dimensions from first query result to get desired chart:

{
    "measures": [
        "actors.actorscount"
    ],
    "timeDimensions": [
        {
            "dimension": "actors.createdAt",
            "granularity": "month"
            "dateRange": "Last quarter"
        }
    ],
    "dimensions": [
        "actors.genre"
    ],
    "filters": [{
      "dimension": "actors.genre",
      "operator": "equals",
      "values": ["action", "comedy"]
    }]
}

Answer 2

The dimensions array contains only one value inside but it is having a comma after that value which is the wrong syntax. You have to fix this. (Remove the comma and your code will work).

Please remove the "limit" key-value pair from "timeDimensions" array and add it as independent key-value pair not under some property.