Returns empty chart data structure for error states.

Processes data from an Ash resource for chart rendering.

Parameters

• resource - The Ash resource to query
• x_field - Field to use for X-axis/labels
• y_field - Field to use for Y-axis/values
• group_by - Optional field to group data by
• query_params - Additional filters for the query
• aggregate_function - How to aggregate data (:count, :sum, :avg, etc.)
• date_grouping - How to group date fields (:day, :week, :month, :year)
• chart_type - Type of chart being created

Returns

A map with the structure expected by Chart.js:

%{
  labels: ["Label 1", "Label 2", "Label 3"],
  datasets: [
    %{
      label: "Dataset Name",
      data: [10, 20, 30],
      backgroundColor: ["color1", "color2", "color3"],
      borderColor: ["color1", "color2", "color3"],
      borderWidth: 1
    }
  ]
}

Transforms a list of data into Chart.js format.

Examples

iex> data = [%{name: "A", value: 10}, %{name: "B", value: 20}]
iex> params = %{x_field: :name, y_field: :value}
iex> Tapir.DataHelper.transform_for_chart(data, params)
%{
  labels: ["A", "B"],
  datasets: [%{label: "Value", data: [10, 20], ...}]
}