memberCartRepository method
Implementation
@override
MemberCartRepository? memberCartRepository(String? appId) {
if ((appId != null) && (_memberCartRepository[appId] == null)) {
_memberCartRepository[appId] = MemberCartCache(MemberCartFirestore(
() => appRepository()!.getSubCollection(appId, 'membercart'), appId));
}
return _memberCartRepository[appId];
}