javascript - PouchDB + Conflict Resolution -

i have simple question hard topic:

how conflict resolution work in pouchdb?

i looked @ documentation, googling, didn't help. so, how handle conflict management in application using pouchdb?

here's how in couchdb, can directly translate pouchdb terms since apis same.

you fetch document, using conflicts=true ask conflicts (get() {conflicts:true} in pouchdb):

http://localhost:5984/db1/foo?conflicts=true 

you receive doc this:

{ "_id":"foo", "_rev":"2-f3d4c66dcd7596419c76b2498b3ba21f", "notgonnawork":"this second db", "_conflicts":["2-c1592ce7b31cc26e91d2f2029c57e621"] } 

there conflict introduced database, , database's revision has (randomly) won. if used bi-directional replication, both databases provide same answer.

notice both revisions start "2-." indicates both second revision document, , both live @ same level of revision tree.

using revision id, fetch conflicting version (get() {rev=...} in pouchdb:

http://localhost:5984/db1/foo?rev=2-c1592ce7b31cc26e91d2f2029c57e621 

you receive:

{ "_id":"foo", "_rev":"2-c1592ce7b31cc26e91d2f2029c57e621", "notgonnawork":"this first database" } 

after presenting 2 conflicting versions user, can put (put()) third revision on top of both of these. third version can combine results, choose loser, or whatever want.

advanced reading:

• the couchdb docs on conflict resolution
• the couchdb wiki page on conflicts.
• understanding couchdb conflicts jan lenhardt