Mailing-List: contact user-help@couchdb.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@couchdb.apache.org
Received-SPF: pass (athena.apache.org: domain of bichay@gmx.net designates
 213.165.64.23 as permitted sender)
From: Tom Bichay <bichay@gmx.net>
Content-Type: multipart/alternative; boundary=Apple-Mail-14--236351235
Subject: Continuous Feed usage with CouchDB
Date: Wed, 22 Sep 2010 15:10:10 +0200
Message-Id: <466FBFC0-E543-41F4-AD11-A8CD217F3C91@gmx.net>
To: user@couchdb.apache.org
Mime-Version: 1.0 (Apple Message framework v1081)

--Apple-Mail-14--236351235
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
	charset=us-ascii

Hi,

I am trying to implement a continuous _changes connection to couchdb =
(cloudant) with jQuery from a different domain (that's why I am using =
JSONP).

With:

$.ajax({
          url: =
"http://app264565.heroku.cloudant.com/geocha/_changes?filter=3Dchannel/mes=
sages_for&include_docs=3Dtrue&feed=3Dcontinuous&channel=3D"+geocha.channel=
Id,
          dataType: "jsonp",
          jsonp: "geocha.chat.stateChanged"
        });

where "geocha.chat.stateChanged" is my callback function, I would expect =
to get invoked each time the continuous connection gets a new object.

But it does not.

It connects correctly to the correct couchdb server and I can inspect =
the correct returned json (even when I am saving new documents), but I =
am not able to invoke any function for changes.
I tried to append an onreadystatechange event listener:

var connection =3D $.ajax({
          url: =
"http://app264565.heroku.cloudant.com/geocha/_changes?filter=3Dchannel/mes=
sages_for&include_docs=3Dtrue&feed=3Dcontinuous&channel=3D"+geocha.channel=
Id,
          dataType: "jsonp",
          jsonp: "geocha.chat.stateChanged"
        });

connection.onreadystatechange =3D geocha.chat.stateChanged;

But as a JSONP-Connection is not a real XMLHttpRequest object that is =
not possible.


Does anyone know what is wrong with my code?

I tried heaps of different things ($.get, $.getJSON, $.jsonp plugin). =
But it is always the same problem.

I just need a way to invoke a function for each new arriving json.

Thanks
Tom
--=20
BICHAY IT [bi:shay]
IT | Consulting | Development
Tom Bichay
Freelancer

Kammachergasse 2
89073 Ulm
0151 - 20669066
tom@bichay.de | bichay@gmx.net
www.bichay.de


--Apple-Mail-14--236351235--