Pie Chart

Hi, Please use this kind of filters in the query to fetch the data between 2 dates and then use the output data in the piechart.

    logicalExpression: a!queryLogicalExpression(
      operator: "AND",
      filters: {
        a!queryFilter(
          field: "startDate",
          operator: ">=",
          value: ri!backDate
        ),
        a!queryFilter(
          field: "startDate",
          operator: "<=",
          value: ri!date
        )
      }
    ),
   

can you provide full sample code

Here is the full code for your reference.

a!queryEntity(
  entity: /* PASS YOUR DATASTORE ENTITY CONSTANT*/,
  query: a!query(
    aggregation: a!queryAggregation(
      aggregationColumns: {
        a!queryAggregationColumn(
          field: "Surveyid",
          isGrouping: true
        ),
        a!queryAggregationColumn(
          field: "id",
          aggregationFunction: "COUNT"
        )
      }
    ),
    logicalExpression: a!queryLogicalExpression(
      operator: "AND",
      filters: {
        a!queryFilter(
          field: "startDate",
          operator: ">=",
          value: ri!backDate
        ),
        a!queryFilter(
          field: "startDate",
          operator: "<=",
          value: ri!date
        )
      }
    ),
    pagingInfo: a!pagingInfo(
      1,
      - 1
    )
  )
).data

I am getting this error

Interface Definition: Expression evaluation error at function a!queryLogicalExpression [line 16]: The a!queryFilter function has an invalid value for the "value" parameter. When the value of "operator" is ">=" "value" must not be null or empty. 

Please pass both the input dates properly in the test input. As I can see the error is because you are not passing one of the date value.

can you provide the code with pie chart field also inclued in it?

I have both the dates in same column

local!data is the data we get from the rule I have given above. 

 a!pieChartField(
                  label: "",
                  labelPosition: "ABOVE",
                  series: {
                    a!forEach(
                      items: local!data,
                      expression: a!chartSeries(label: local!info[fv!index], data: fv!item.id)
                    )
                  },
                  showDataLabels: true,
                  showTooltips: false,
                  showAsPercentage: true,
                  colorScheme: "CLASSIC",
                  style: "DONUT",
                  seriesLabelStyle: "ON_CHART",
                  height: "MEDIUM",
                  refreshAlways: true
                ),

local!data is the data we get from the rule I have given above. 

 a!pieChartField(
                  label: "",
                  labelPosition: "ABOVE",
                  series: {
                    a!forEach(
                      items: local!data,
                      expression: a!chartSeries(label: local!info[fv!index], data: fv!item.id)
                    )
                  },
                  showDataLabels: true,
                  showTooltips: false,
                  showAsPercentage: true,
                  colorScheme: "CLASSIC",
                  style: "DONUT",
                  seriesLabelStyle: "ON_CHART",
                  height: "MEDIUM",
                  refreshAlways: true
                ),

how to call the local!data