feat: flatten the nested columns of exported data

packages/server/src/services/Export/utils.ts

@@ -0,0 +1,27 @@
+import { flatMap } from 'lodash';
+/**
+ * Flattens the data based on a specified attribute.
+ * @param data - The data to be flattened.
+ * @param flattenAttr - The attribute to be flattened.
+ * @returns - The flattened data.
+ */
+export const flatDataCollections = (
+  data: Record<string, any>,
+  flattenAttr: string
+): Record<string, any>[] => {
+  return flatMap(data, (item) =>
+    item[flattenAttr].map((entry) => ({
+      ...item,
+      [flattenAttr]: entry,
+    }))
+  );
+};
+
+/**
+ * Gets the data accessor for a given column.
+ * @param col - The column to get the data accessor for.
+ * @returns - The data accessor.
+ */
+export const getDataAccessor = (col: any) => {
+  return col.group ? `${col.group}.${col.accessor}` : col.accessor;
+};