readme.md

Map/Reduce in PouchDB/CouchDB does have a "closed scope"--it's not the lamda it looks like.

Essentially, you don't query with the map/reduce...you build an index.

In CouchDB parlance, the map/reduce code is called a view. The thing it builds is an index. You then query the index using a...query. 😉

In CouchDB it's clearer than in PouchDB as you actually use query params to query an index (which lives at a URL, so it's more obviously a stored something or other that you're querying via HTTP).

In PouchDB, the first part of .query() works like a "save this view + build an index for it" action, the second part are the "query params" from CouchDB land.

Check the code again to see if it makes more sense.

gistfile1.txt

module.exports.getConversationsForUser = function (user, cb) {
  db.query(
    function (doc) {
      if (doc.author) {
        emit(doc.author)
      }
    },
    {include_docs: true, key: user.userId}
  ).then(function (response) {
    // response.doc should have the whole doc
    // response.key should === user.userId (because of the above query param)
    // response.value should === null
    // response.id should === doc._id
    console.log('response', response)
    cb(null, response)
  }).catch(function (err) {
    cb(err)
  })
}