Re: RFC: Catalyst::Controller::REST::DBIC

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RFC: Catalyst::Controller::REST::DBIC
\ luke saunders (4 May 2008)
. \ Patrick Donelan (4 May 2008)
. . \ J. Shirley (4 May 2008)
. . . \ Zbigniew Lukasiak (4 May 2008)
. . . . \ J. Shirley (4 May 2008)
. . . . . \ Zbigniew Lukasiak (4 May 2008)
. . . . . . \ Christopher Laco (4 May 2008)
. . . . . . . \ J. Shirley (4 May 2008)
. . . . . . . \ Steve Atkins (4 May 2008)
. . . . . . . . \ Christopher Laco (4 May 2008)
. . . . . . . . \ Matt S Trout (5 May 2008)
. . . . . . \ J. Shirley (4 May 2008)
. . . . . . . \ Zbigniew Lukasiak (4 May 2008)
. . . . . . . \ Matt S Trout (5 May 2008)
. . . . . . . . \ J. Shirley (5 May 2008)
. . . . . . . . . \ Andrew Rodland (5 May 2008)
. . . . . . . . . . \ J. Shirley (5 May 2008)
. . . . . . . . . . . \ Zbigniew Lukasiak (5 May 2008)
. . . . . . . . . . . . \ J. Shirley (5 May 2008)
. . . . . . . . . . . \ luke saunders (5 May 2008)
. . . . . . . . . . . . \ J. Shirley (5 May 2008)
. . . . . . . . . . . . . \ Peter Karman (5 May 2008)
. . . . . . . . . . . . . . \ J. Shirley (5 May 2008)
. . . . . . . . . . . . . . \ luke saunders (5 May 2008)
. . . . . . . . . . . . . . . \ Peter Karman (6 May 2008)
. . . . . . . . . . . . . \ luke saunders (5 May 2008)
. . . . . . . . . . . . . . \ J. Shirley (5 May 2008)
. . . . . . . . . . . . . . . \ Peter Karman (5 May 2008)
. . . . . . . . . . . . . . . \ luke saunders (5 May 2008)
. . . . . . . . . . . . . . . . \ Ashley (5 May 2008)
. . . . . . . . . . . . . . . . \ Zbigniew Lukasiak (6 May 2008)
. . . . . . . . . \ Matt S Trout (5 May 2008)
. . . . . . . . . . \ J. Shirley (5 May 2008)
. . . \ luke saunders (4 May 2008)
. \ Aristotle Pagaltzis (4 May 2008)
. . \ Matt S Trout (4 May 2008)
. . . \ J. Shirley (4 May 2008)
. . . \ Patrick Donelan (5 May 2008)
. . . . \ luke saunders (5 May 2008)
. . . . . \ Matt S Trout (5 May 2008)
. . . . . . \ Patrick Donelan (6 May 2008)
. . . \ Aristotle Pagaltzis (5 May 2008)
. \ Zbigniew Lukasiak (4 May 2008)
. . \ luke saunders (4 May 2008)
. . . \ Zbigniew Lukasiak (4 May 2008)
. . . . \ luke saunders (4 May 2008)
. . . . . \ Zbigniew Lukasiak (4 May 2008)
. . . . . . \ luke saunders (4 May 2008)
. \ Jonathan Rockway (4 May 2008)
. . \ luke saunders (4 May 2008)
. \ Zbigniew Lukasiak (15 May 2008)
. . \ Mark Trostler (15 May 2008)
. . . \ Zbigniew Lukasiak (15 May 2008)
. . . . \ Aristotle Pagaltzis (15 May 2008)
. . . . . \ Zbigniew Lukasiak (16 May 2008)

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Subject:	Re: RFC: Catalyst::Controller::REST::DBIC
Group:	Catalyst
From:	Zbigniew Lukasiak
Date:	4 May 2008

On Sun, May 4, 2008 at 2:38 AM, luke saunders <luke.saunders> wrote:
> I have started to write a Catalyst base controller for REST style CRUD
> via DBIC. I have noticed that a number of other people have been
> working on or are thinking about working on something similar, most
> notabley J. Shirley who seems to be creating
> Catalyst::Controller::REST::DBIC::Item
> (http://dev.catalystframework.org/svnweb/Catalyst/browse/Catalyst-Controller-RES T-DBIC-Item/)
> and some chaps from a recent thread on this list (entitled
> "Dispatching with Chained vs HTTP method").
>
> Ideally I would like to merge J. Shirley's effort into mine (or visa
> versa) along with anything that anyone else has. Basically I want to
> avoid ending up with a load of modules that all do the same thing.
>
> My effort is heavily based on something mst wrote a while ago, and
> since then I've ended up writing something very similar for every
> project I've worked on which indicates it's worth OSing. Essentially
> it is used like so:
>
> package MyApp::Controller::API::REST::CD;
>
> use base qw/Catalyst::Controller::REST::DBIC/;
>
> ...
>
> __PACKAGE__->config
> ( action => { setup => { PathPart => 'cd', Chained =>
> '/api/rest/rest_base' } },
> class => 'RestTestDB::CD',
> create_requires => ['artist', 'title', 'year' ],
> update_allows => ['title', 'year']
> );
>
> And this gets you the following endpoints to fire requests at:
> /api/rest/cd/create
> /api/rest/cd/id/[cdid]/update
> /api/rest/cd/id/[cdid]/delete
> /api/rest/cd/id/[cdid]/add_to_rel/[relation]
> /api/rest/cd/id/[cdid]/remove_from_rel/[relation]
>
> The full source is here:
> http://lukesaunders.me.uk/dists/Catalyst-Controller-REST-DBIC-1.000000.tar.gz
>
> If you have a few moments please have a look, especially if you are
> working on something similar. Today I even wrote a test suite which
> has a test app and is probably the best place to look to see what it
> does.

I've been planning for a more REST-like update to InstantCRUD for a
long time. My approach is a bit different because for validation and
for generating form's HTML I use HTML::Widget. I believe validation
is important and separate enough to have a separate package (and I
don't want to reinvent the wheel - so I use what is available at
CPAN). I also choose to generate the HTML - because I believe there
is too much logic (classes for errors, options from the database,
subforms from the database - see below) in it for the simplistic
Template::Toolkit language - an elegant solution for that could be
also a TT plugin.

Now I am working on porting Instant to use Rose::HTML::Form instead of
HTML::Wiget - it will give it much more solid base.

One more difference in my approach is that the 'update' action will be
able to edit not just one row from the DB - but all the interrelated
records that together make a full object. This means also adding and
removing the related records - so I'll not have the add_to_rel
remove_from_rel actions.

There is also an effort by Peter Carman:
http://search.cpan.org/~karman/CatalystX-CRUD-0.25/lib/CatalystX/CRUD/REST.pm
- and I more or less agreed with Peter on some basics - so that
hopefully our code will be compatible and maybe even will form
together just one solution.

Finally I am waiting for the Moose port of Catalyst - so that all the
CRUD functionality could be just a Role instead of forcing the user to
'use base'.

>
> Note that it lacks:
> - list and view type methods which dump objects to JSON (or whatever)
> - clever validation - it should validate based on the DBIC column
> definitions but it doesn't
> - any auth - not sure if it should or not, but it's possible
>
> Also it doesn't distinguish between POST, PUT, DELETE and GET HTTP
> requests favouring instead entirely separate endpoints, but that's up
> for discussion.
>
> So, J. Shirley, do you have any interest in a merge? And others, do
> you have ideas and would you like to contribute?
>
> Thanks,
> Luke.
>
> _______________________________________________
> List: Catalyst
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>

--
Zbigniew Lukasiak
http://brudnopis.blogspot.com/

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