show all 1M with sorting twice in couchdb? - couchdb

Question

New to couchdb, I want to do a 1 to Many relationship with sorting
Category -> Documents
Would like to sort Category and sort Documents within each Category and hopefully get the result as an array.
I can sort either by Category or by Documents, but not both.
I would like to get something like this as the query result:
[{ name: 'category1',
position: 1,
type: 'category',
documents: [{ name: ..., type: ..., position: 1 },
{ name: ..., type: ..., position: 2 },
{ name: ..., type: ..., position: 3 }
}
{ name: 'category2',
position: 2,
type: 'category',
documents: [{ name: ..., type ..position: 1 },
{ name: ..., position: 2 },
{ name: ..., position: 3 }]
}]
I setup a view design and a map function like so (is this the correct approach?):
function(category) {
if (type == 'category') {
for (var d in category.documents) {
emit([category.position, category.documents[d].position??? ], {_id: category.documents[d], category: category })
}
}
Problems are...
1- category.documents[d].position wouldn't 'exist' yet so I can't simply do that.
2- the query results isn't formatted the way I would want. It would be rows of documents instead of rows of category with a array of document objects.

Answer 1

There are no relationships in CouchDB. The correct way would be to set the category a document belongs to directly on the document.
{
_id: ...,
name: ...,
type: ...,
category: 1,
position: 1
}

Answer 2

As pointed out by #OctavianDamiean, you should add a category field in the document. Then the map function becomes something like:
function(doc) {
if (doc.type === 'Document') {
emit([doc.category, doc.position], 1);
}
}
Querying with include_docs=true, you'll get:
[ { "key": ["category1", 1], "doc": { "name": "doc1.1", "type": "Document", "position": 1 } },
{ "key": ["category1", 2], "doc": { "name": "doc1.2", "type": "Document", "position": 2 } },
{ "key": ["category2", 1], "doc": { "name": "doc2.1", "type": "Document", "position": 1 } },
{ "key": ["category2", 2], "doc": { "name": "doc2.2", "type": "Document", "position": 2 } },
...
]