Hallo all,
I have written a couple of CouchDB map functions by now, which are being
used in production. All is fine there. The documents in my database are
JSON-serialized objects from a Java application. And I think I have come
to a point where this setup is breaking down.
I'll try to simplify my problem as much as possible. I have two types of
documents: group documents with type:"group" and program documents with
type: "program". Programs can be episodes of groups, and groups can be
members of other groups.
A bare-bones program document might look like this:
----
{
"_id": "program:101",
"_rev": "3-4139e2a50b76a736b676475f960596c0",
"episodeOf": [
{
"position": 26,
"reference": "group:3"
}
],
"type": "program"
}
----
The referenced group document might look like this:
----
{
"_id": "group:3",
"_rev": "1-0e7eff25b91e1e5d93ca19655c2afa69",
"memberOf": [
{
"position": 1,
"reference": "group:1"
}
],
"type": "group"
}
----
And the group document referenced in the above group document might be:
----
{
"_id": "group:1",
"_rev": "1-1899b6390756e2f121efbd85a04ea137",
"type": "group"
}
----
Now I need to gather all the program data for a group (say, all programs
that are an episode of 'group:3' or 'group:1'). Does this require
chained map/reduce (which is not in CouchDB yet, but seems to come up
more and more on this mailinglist) or is there another way to do this?
Nils.
