Use ddoc_cache and new fetch rpc format
diff --git a/src/couch_changes.erl b/src/couch_changes.erl
index 7547aef..0d418e8 100644
--- a/src/couch_changes.erl
+++ b/src/couch_changes.erl
@@ -229,9 +229,12 @@
FilterNameParts = string:tokens(FilterName, "/"),
case [?l2b(couch_httpd:unquote(Part)) || Part <- FilterNameParts] of
[DName, FName] ->
- {ok, DDoc} = open_ddoc(Db, <<"_design/", DName/binary>>),
+ DesignId = <<"_design/", DName/binary>>,
+ {ok, DDoc} = ddoc_cache:open_doc(fabric:dbname(Db), DesignId),
check_member_exists(DDoc, [<<"filters">>, FName]),
- {custom, Style, Req, DDoc, FName};
+ DIR = fabric_util:doc_id_and_rev(DDoc),
+ {fetch, Style, Req, DIR, FName};
+
[] ->
{default, Style};
_Else ->