CouchDB Design Document

{
   "_id": "_design/eventsource",
   "_rev": "10-6871125abf6ffb2c2b34a43e08c9909c",
   "language": "javascript",
   "views": {
       "allEvents": {
           "map": "function(doc) {  if (doc.Events) {doc.Events.forEach(function(e) {   if (e.Event.Detail.AggregateId) {      emit(e.Event.Detail.AggregateId, e.Event);   }});  }}"
       }
   },
   "filters": {
       "eventsByType": "function(doc, req) { if (doc.Events) { doc.Events.forEach(function(e) {if (e.Event) {if (e.Event.Meta) {if (e.Event.Meta.Type == req.query.type) {return true;}}}});return false;}}"
   }
}

CouchDB Example Document to run the view against

{
   "_id": "a4f089ed-be93-4505-b7fc-91932f28cfea",
   "_rev": "1-68a8a520748e1a7d698104d02f03706a",
   "AggregateId": "fdc894e6-c15f-449c-b96e-9afc175e4129",
   "Events": [
       {
           "Event": {
               "Meta": {
                   "Type": "EventStore.Specifications.AggregateEvent"
               },
               "Detail": {
                   "AggregateId": "fdc894e6-c15f-449c-b96e-9afc175e4129"
               }
           }
       },
       {
           "Event": {
               "Meta": {
                   "Type": "EventStore.Specifications.AggregateEvent"
               },
               "Detail": {
                   "AggregateId": "fdc894e6-c15f-449c-b96e-9afc175e4129"
               }
           }
       }
   ]
}

Problem statement

UPDATE: A solution for my issue was provided by davisp on the couchdb irc channel.
It involved replacing the filter function with one that worked! :)
The return within the closure was not returning from the function, but was only returning from the closure.
Thanks to davisp.
The correct version of the function was posted by davisp here:
http://friendpaste.com/2KnwyZYFxix9vf8F2BGkBU?rev=613861393137





If I call the _changes feed with the filter in the design document then I don't get any results, even when the request argument supplied should return them.

So this:

/_changes?filter=eventsource/eventsByType&Type="EventStore.Specifications.AggregateEvent"

just return this:

{"results":[

],
"last_seq":98}

when I would expect a number of documents to be returned.

Any suggestions appreciated. As would be any general comment on the javascript.

Thanks