refactor: expand unreadable one-liner in `get_value`

frappe/database/database.py

@@ -387,13 +387,23 @@ class Database(object):
 			frappe.db.get_value("System Settings", None, "date_format")
 		"""
 
-		ret = self.get_values(doctype, filters, fieldname, ignore, as_dict, debug,
+		result = self.get_values(doctype, filters, fieldname, ignore, as_dict, debug,
 			order_by, cache=cache, for_update=for_update, run=run, pluck=pluck, distinct=distinct, limit=1)
 
 		if not run:
-			return ret
+			return result
+
+		if not result:
+			return None
+
+		row = result[0]
+
+		if len(row) > 1 or as_dict:
+			return row
+		else:
+			# single field is requested, send it without wrapping in containers
+			return row[0]
 
-		return ((len(ret[0]) > 1 or as_dict) and ret[0] or ret[0][0]) if ret else None
 
 	def get_values(self, doctype, filters=None, fieldname="name", ignore=None, as_dict=False,
 		debug=False, order_by="KEEP_DEFAULT_ORDERING", update=None, cache=False, for_update=False,