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Subject: Re: [alpine-devel] Ideas for a new config framework, ACF2
From: Oliver Loch <grimeton@gmx.net>
In-Reply-To: <201212051939.19111.vkrishn4@gmail.com>
Date: Wed, 5 Dec 2012 17:01:06 +0100
Cc: Kaarle Ritvanen <kaarle.ritvanen@datakunkku.fi>,
 "alpine-devel@lists.alpinelinux.org" <alpine-devel@lists.alpinelinux.org>,
 acf@lists.alpinelinux.org
Message-Id: <88399884-A181-4082-A6DF-EEA0B2B374A5@gmx.net>
References: <20121129152317.69585a4f@ncopa-desktop.alpinelinux.org> <201212022211.23812.vkrishn4@gmail.com> <alpine.LFD.2.02.1212050955390.22932@kunkku.net> <201212051939.19111.vkrishn4@gmail.com>
To: vkrishn4@gmail.com


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Hi,

have a look at the FreeNAS WebUI. They used Django ( =
https://www.djangoproject.com/ ) together with DoJo ( =
http://www.dojotoolkit.org ).=20

If we use this setup we get a lot of stuff already working:

On the Django site, as the backend:

- Abstraction on multiple layers.  - There is no need to deal with the =
database backend. One defines types, and then uses them. Database layer =
is completely transparent.
- The main code that does everything is written as a module, that is =
then executed by Django for us. No need to write all the stuff around =
it.
- Views - every "module" also has views, which are used to generate the =
page shown to the user. It has a small language to be able to put the =
values in the right places.
- Every module that is written for Django, has it's own Types+Database, =
it's own main code and it's own views. It resides in it's own directory =
and does not interfere with any other plugin. Which breaks only the =
plugin and not the whole setup.
- It has it's own, builtin, webserver. It's not recommended for =
production use, but it's there ;) We could also run it as an FCGI =
backend connected to busybox' httpd.

With DoJo on the client side we get a fully working javascript framework =
that is know to work in Internet Explorer, Firefox, Chrome, Safari and =
Opera. We don't have to deal with anything on the client side. Only =
define the website, get the data in there and that's it. It also offers =
different GUIs for mobile devices like IPad, iPhone, Android, Windows =
Mobile and so on... So whatever we hit - it will work ;)

And it has a lot of nice plugins and views. Check out the website at =
www.dojotoolkit.org

There is even a Djang-DoJo Distribution, but it hasn't been update for a =
longer time, so imho we should do it on our own.

We can provide a working environment that nearly fits all needs to any =
plugin developer which can make the Distro become popular for embedded =
devices and such :)

But there are also downsides:

- Django is written in Python... Maybe there is something similar =
written in Perl/Lua/Tcl/$Poison.
- The size of Python is really big imho and I don't know if it works =
with embedded Python.
- The javascript framework can produce a lot of load at the client if we =
do nasty things like on-the-fly search updates and stuff.

However, just a suggestion :)

KR,

Oliver

Am 05.12.2012 um 15:09 schrieb "V.Krishn" <vkrishn4@gmail.com>:

> On Wednesday, December 05, 2012 01:27:09 PM you wrote:
>> On Sun, 2 Dec 2012, V.Krishn wrote:
>>> Can we know what frameworks/components are involved.
>>> Few that I could get from the thread:
>>> 1. bootstrap
>>> 2. backbonejs, requirejs
>>> 3. lua
>>> 4. minihttpd
>>> 5. json libs
>>> 6. sqlite
>>> 7. augeas
>>>=20
>>> Any thoughts on tir (lua+mongrel2+zeromq) ?
>>=20
>> I used Tir as part of the first prototype before writing the
>> proposal. This was in May, but afterward we decided to opt for full
>> client-side implementation for the web UI, whereas Tir seems to =
target
>> server-side web applications. Even for those, the value add was =
rather
>> thin, which is quite natural because the author advertises to use =
only
>> 1300 lines of code.
>=20
> Having a backed lua framework would be nice.
> Tir could be adopted/modified as a base.
>=20
>>=20
>> The proposal mentions Backbone.js, but after a second prototyping
>> round I feel that this library creates more problems than provides
>> solutions, at least in this context. Backbone's data model is rather
>> limited in comparison to what is proposed for the new ACF. For
>> example, Backbone does not support nested collections or collections
>> of primitive types. Circumventing these limitations provided to add
>> too much complexity both to the server and client implementation.
>>=20
>=20
> Choice of client-side js libs should not be a stress here.
> Rather module-specific adoption of other libs should be possible.
>=20
> Mongrel2 also involves zeromq, which has its own benefits.
>=20
> Also to be evaluated for tools/system to be used in ACF2 is "redis".
>=20
> --=20
> Regards.
> V.Krishn
>=20
>=20
> ---
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