How can I get a view of favorite user documents by user in Couchdb map/reduce?
- by Jeremy Raymond
My Couchdb database as a main document type that looks something like:
{
"_id" : "doc1",
"type" : "main_doc",
"title" : "the first doc"
...
}
There is another type of document that stores user information. I want users to be able to tag documents as favorites. Different users can save the same or different documents as favorites. My idea was to introduce a favorite document to track this something like:
{
"_id" : "fav1",
"type" : "favorite",
"user_id" : "user1",
"doc_id" : "doc1"
}
It's easy enough to create a view with user_id as the key to get a list of their favorite doc IDs. E.g:
function(doc) {
if (doc.type == "favorite") {
emit(doc.user_id, doc.doc_id);
}
}
However I want to list of favorites to display the user_id, doc_id and title from the document. So output something like:
{ "key" : "user1", "value" : ["doc1", "the first doc"] }
