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< Erlang Web mailing list ~ [Erlangweb-users] Is it possible to use PostgreSQL in Erlang |
| fjanon |
 Posted: Tue Oct 13, 2009 3:30 am |
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Joined: 09 Oct 2009
Posts: 4
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Hi,
I would like to do a proof of concept project with Erlang Web, but I need Postgres. Is it possible to use Postgres from Erlang web?
Thanks
Fred
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| ngocdaothanh |
| Posted: Tue Oct 13, 2009 4:11 am |
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Joined: 06 Dec 2008
Posts: 43
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epgsql is a very good PostgreSQL driver for Erlang:
http://bitbucket.org/will/epgsql/overview/
On Tue, Oct 13, 2009 at 12:29 PM, Fred Janon <fjanon@gmail.com> wrote:
> Hi,
>
> I would like to do a proof of concept project with Erlang Web, but I need
> Postgres. Is it possible to use Postgres from Erlang web?
>
> Thanks
>
> Fred
>
>
> ------------------------------------------------------------------------------
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| michal |
| Posted: Thu Oct 15, 2009 8:46 am |
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Joined: 20 Jul 2006
Posts: 44
Location: London
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Hi,
On 13 Oct 2009, at 05:29, Fred Janon wrote:
> I would like to do a proof of concept project with Erlang Web, but I
> need Postgres. Is it possible to use Postgres from Erlang web?
Erlang Web supports Mnesia and CouchDB databases at the moment (both
being Erlang based), however there is already a layer of abstraction
that allows implementing interfaces of other databases as well.
The way it works is that all queries to the database should go through
the e_db.erl API. Then the database callback module is called. The
callback module can be configured in the project.conf file and can be
read using e_conf:dbms(). You can read more here http://wiki.erlang-web.org/DBMS
Using Postgres from Erlang Web would require developing a simple
e_db_postgres.erl call back module, from which you would call one of
the existing Postgres drivers for Erlang (see the other email in this
thread). If you would need some help with developing such callback
module, let us know.
Michal
--
Michal Slaski
http://www.erlang-consulting.com
------------------------------------------------------------------------------
Come build with us! The BlackBerry(R) Developer Conference in SF, CA
is the only developer event you need to attend this year. Jumpstart your
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ahead of the curve. Join us from November 9 - 12, 2009. Register now!
http://p.sf.net/sfu/devconference
_______________________________________________
Erlangweb-users mailing list
Erlangweb-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/erlangweb-users
http://www.erlang-web.org/
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