Perhaps also take a look at the https://bloggr.exmer.com exampe to see CouchDB & PouchDB in action (https://github.com/broerse/ember-cli-blog)
On Thu, Apr 26, 2018 at 4:26 AM, 明 淨 <jinmin...@outlook.com> wrote: > > > Thank you, I will check Pouchdb. > > > > > > ________________________________ > From: Bill Stephenson <b...@cherrypc.com> > Sent: Thursday, April 26, 2018 9:37:42 AM > To: user@couchdb.apache.org > Subject: Re: Some questions about couchdb > > Hi Jinmin, > > > On Apr 25, 2018, at 7:11 PM, 明 淨 <jinmin...@outlook.com> wrote: > > > > What I'm thinking about is the following things: > > > > 1. If I store the info of a person as a document in couchdb, will update > of a few words in his/her self introduction cause the whole document to be > rewrite? also, I have to submit the whole document to make this a few words > update? Shall couchdb support field unit update in the future? > > In a nutshell yes, you will update the entire document but that’s easy. > You “get” the document as a JSON object and then update just the parts of > the object you want and then “put” the updated document object back in the > database. > > > > > 2. By default, a user of a database in couchdb can update all the > documents in the database, but usually in the real world, every document > has it's owner, and shouldn't be updated by users other than the owner. Is > there any mechanism in couchdb to support document unit authorization? > > With CouchDB you can set it up so every user has their own database that > only they can create, modify, and delete documents in. You can assign other > users “roles” and add them to a database's “Permissions” that allow them to > only read documents in a database as well. > > > > > 3. As replication is the basis of data sync across cluster nodes, so > will couchdb support field unit update in cluster data sync, not just > document unit? > > I don’t know the answer to this, but I do know you can replicate and sync > databases between more than one CouchDB server. You don’t need a cluster to > do that though. > > I will suggest you take a look at PouchDB too. The info on their site will > help you get a feel for some of the ways you can manage users and documents > and permissions and you can use PouchDB in your web browser offline without > a CouchDB server, and you can sync your web browser database with a remote > CouchDB server, or just use PouchDB with a remote CouchDB server. > > https://pouchdb.com > > Also check out their “Authentication” plugin page to learn more about how > you can manage users and database permissions on your CouchDB: > > https://github.com/pouchdb-community/pouchdb-authentication/blob/master/ > docs/recipes.md > > I hope this helps, > > Bill >
