perf: Cache accounting dimension filter map

erpnext/accounts/doctype/accounting_dimension_filter/accounting_dimension_filter.py

@@ -38,37 +38,40 @@ class AccountingDimensionFilter(Document):
 
 
 def get_dimension_filter_map():
-	filters = frappe.db.sql(
-		"""
-		SELECT
-			a.applicable_on_account, d.dimension_value, p.accounting_dimension,
-			p.allow_or_restrict, a.is_mandatory
-		FROM
-			`tabApplicable On Account` a, `tabAllowed Dimension` d,
-			`tabAccounting Dimension Filter` p
-		WHERE
-			p.name = a.parent
-			AND p.disabled = 0
-			AND p.name = d.parent
-	""",
-		as_dict=1,
-	)
-
-	dimension_filter_map = {}
-
-	for f in filters:
-		f.fieldname = scrub(f.accounting_dimension)
-
-		build_map(
-			dimension_filter_map,
-			f.fieldname,
-			f.applicable_on_account,
-			f.dimension_value,
-			f.allow_or_restrict,
-			f.is_mandatory,
+	if not frappe.flags.get("dimension_filter_map"):
+		filters = frappe.db.sql(
+			"""
+			SELECT
+				a.applicable_on_account, d.dimension_value, p.accounting_dimension,
+				p.allow_or_restrict, a.is_mandatory
+			FROM
+				`tabApplicable On Account` a, `tabAllowed Dimension` d,
+				`tabAccounting Dimension Filter` p
+			WHERE
+				p.name = a.parent
+				AND p.disabled = 0
+				AND p.name = d.parent
+		""",
+			as_dict=1,
 		)
 
-	return dimension_filter_map
+		dimension_filter_map = {}
+
+		for f in filters:
+			f.fieldname = scrub(f.accounting_dimension)
+
+			build_map(
+				dimension_filter_map,
+				f.fieldname,
+				f.applicable_on_account,
+				f.dimension_value,
+				f.allow_or_restrict,
+				f.is_mandatory,
+			)
+
+		frappe.flags.dimension_filter_map = dimension_filter_map
+
+	return frappe.flags.dimension_filter_map
 
 
 def build_map(map_object, dimension, account, filter_value, allow_or_restrict, is_mandatory):