feat: Add "Accumulated Values in Group Company" checkbox to Budget Variance Report (#50608)

erpnext/accounts/report/budget_variance_report/budget_variance_report.js

@@ -17,6 +17,33 @@ frappe.query_reports["Budget Variance Report"] = {
 		return value;
 	},
 };
+
+frappe.query_reports["Budget Variance Report"].onload = function(report) {
+  let company = frappe.query_report.get_fileter_value("company");
+  if (!company) return;
+
+  frappe.call({
+    method: "frappe.client.get_value",
+    args: {
+      doctype: "Company",
+      filters: { name: company },
+      fieldname: "is_group",
+    },
+    callback: function(r) {
+      const filter = frappe.query_report.get_filter("accumulated_in_group_company");
+      if (!filter) return;
+
+      if (r.message && r.message.is_group) {
+        filter.df.hidden = 0;
+      } else {
+        filter.df.hidden = 1;
+        frappe.query_report.set_filter_value("accumulated_in_group_company", 0);
+      }
+      filter.refresh();
+    },
+  });
+};
+
 function get_filters() {
 	function get_dimensions() {
 		let result = [];
@@ -107,6 +134,13 @@ function get_filters() {
 			fieldtype: "Check",
 			default: 0,
 		},
+      {
+        fieldname: "accumulated_in_group_company",
+        label: __("Accumulated Values in Group Company"),
+        fieldtype: "Check",
+        default: 0,
+        hidden: 1,
+      },
 	];
 
 	return filters;

erpnext/accounts/report/budget_variance_report/budget_variance_report.py

@@ -10,6 +10,26 @@
 
 from erpnext.controllers.trends import get_period_date_ranges, get_period_month_ranges
 
+def get_companies_for_report(filters):
+    """Return list of companies for consolidated reporting."""
+    company = filters.get("company")
+
+    # If not consolidating -> return only the selected company
+    if not filters.get("accumulated_in_group_company"):
+        return [company]
+
+    # Consolidated -> get all child companies + parent
+    companies = frappe.get_all(
+            "Company",
+            filters={"parent_company": company},
+            pluck="name"
+            )
+    # Always include parent company
+    if company not in companies:
+        companies.append(company)
+
+    return companies
+
 
 def execute(filters=None):
 	if not filters:
@@ -24,6 +44,36 @@ def execute(filters=None):
 	period_month_ranges = get_period_month_ranges(filters["period"], filters["from_fiscal_year"])
 	cam_map = get_dimension_account_month_map(filters)
 
+    # consolidate dimension_account_month map accross companies
+    companies = get_companies_for_report(filters)
+	if filters.get("accumulated_in_group_company"):
+		consolidated_cam_map = {}
+		for comp in companies:
+			filters["company"] = comp
+			company_map = get_dimension_account_month_map(filters)
+
+			for dim, accounts in company_map.items():
+				if dim not in consolidated_cam_map:
+					consolidated_cam_map[dim] = {}
+				for acc, months in accounts.items():
+					if acc not in consolidated_cam_map[dim]:
+						consolidated_cam_map[dim][acc] = months
+					else:
+						# accumulate monthwise data
+						for year, mdata in months.items():
+							consolidated_cam_map[dim][acc].setdefault(year, {})
+							for month, vals in mdata.items():
+								consolidated_cam_map[dim][acc][year].setdefault(month, {})
+								for key in ("target", "actual"):
+									consolidated_cam_map[dim][acc][year][month][key] = \
+										consolidated_cam_map[dim][acc][year][month].get(key, 0) + vals.get(key, 0)
+								consolidated_cam_map[dim][acc][year][month]["variance"] = \
+									consolidated_cam_map[dim][acc][year][month]["target"] - consolidated_cam_map[dim][acc][year][month]["actual"]
+
+		cam_map = consolidated_cam_map
+	else:
+		cam_map = get_dimension_account_month_map(filters)
+
 	data = []
 	for dimension in dimensions:
 		dimension_items = cam_map.get(dimension)