fix: dont hardcode search fields

FullTextSearch uses name and content
WebsiteSearch uses title and content

Tests were failing because of hardcoded fieldnames which can't be
overridden by inheriting class without rewriting search function.

Made a separate function for defining search fields.

frappe/search/full_text_search.py

@@ -23,6 +23,9 @@ class FullTextSearch:
 	def get_schema(self):
 		return Schema(name=ID(stored=True), content=TEXT(stored=True))
 
+	def get_fields_to_search(self):
+		return ["name", "content"]
+
 	def get_id(self):
 		return "name"
 
@@ -121,7 +124,7 @@ class FullTextSearch:
 		out = []
 
 		with ix.searcher() as searcher:
-			parser = MultifieldParser(["title", "content"], ix.schema, termclass=FuzzyTermExtended)
+			parser = MultifieldParser(self.get_fields_to_search(), ix.schema, termclass=FuzzyTermExtended)
 			parser.remove_plugin_class(FieldsPlugin)
 			parser.remove_plugin_class(WildcardPlugin)
 			query = parser.parse(text)

frappe/search/website_search.py

@@ -21,6 +21,9 @@ class WebsiteSearch(FullTextSearch):
 			title=TEXT(stored=True), path=ID(stored=True), content=TEXT(stored=True)
 		)
 
+	def get_fields_to_search(self):
+		return ["title", "content"]
+
 	def get_id(self):
 		return "path"