Re: [Catalyst] how to implement Transactions (over different db tables) in a Catalyst project
Kakimoto I recommend you read this article http://blog.urth.org/2009/07/what-is-catalyst-really.html It might help you understand more when its a Catalyst Issue or a another component issue! And help you better trouble shoot your problems. Apparently Catalyst will help you send a request to the data model and return the request result to a view The content of the request and its semantic apparently from this conversation and the article is the Model responsibility So if the Model is Transaction capable, you will have transaction! Can transactions be implemented at the Catalyst/glue level, apparently Catalyst was not conceived to do so! I hope this helped! ___ List: Catalyst@lists.scsys.co.uk Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.uk/ Dev site: http://dev.catalyst.perl.org/
Re: [Catalyst] default : Local v. default : Path
On Mon, Jul 6, 2009 at 1:51 PM, Tomas Doranbobtf...@bobtfish.net wrote:
On 6 Jul 2009, at 18:14, Paul Makepeace wrote:
We just upgraded from 5.80005 to 5.80007 and default : Local is no longer
matching $controller/ (i.e. requires $controller/default)
I was curious what the difference is, and flagging it for anyone else.
Yes, sorry about that - it's a regression / correctness fix. 5.80005
considered anything called 'default' to be a default method, no matter what
attributes you have it - which was a huge pile of fail..
The incorrect behavior was:
sub default : Chained('/') PathPart('foobarbaz') Args(0) = became
/mycontrollernamespace/.*
The correct behavior is:
sub default : Local = asking for mycontrollernamespace/default
sub default : Private = asking to be last-case fallback for
mycontrollernamespace/.*
My app recently started failing with default : Private. IIRC at YAPC10
mst said this was a relic of bygone Catalyst days.
So what does default : Path actually _mean_? The docs say,
Path actions match things starting with a precise specified path, and
nothing else. and Empty Path definitions match on the namespace
only, exactly like :Global.
My reading of that is that :Path means *any* sub (not just default)
would match /$controller - is that right?
This is somewhat a regression on 5.7, and somewhat a fix - as we now
correctly handle priorities in all cases with default / Path actions,
allowing the most specific action to match in all cases.
FWIW, IMO,
http://search.cpan.org/~hkclark/Catalyst-Manual-5.8000/lib/Catalyst/Manual/Intro.pod#Built-in_special_actions
is a slightly odd place to be documenting in reference style the actions. Is
there another place? This is one of those things I keep expecting has a home
and then eventually finding back in the Manual's intro.
I totally agree. Please nominate where it should be (where did you look
hardest that it wasn't), and we'll put it there instead, with the
clarifications to the expected behavior you're about to make if it isn't
crystal as-is.. :)
I'll have a think and get back to you after my Vegas fuzz has cleared.
Thanks for the clear explanations!
Paul
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Re: [Catalyst] Themes, skins, templates and componentized UI?
On Mon, Jul 6, 2009 at 9:55 PM, Gunnar Strandgunnarstr...@yahoo.com wrote: Hi, I am a little new in the web design area. I'm trying to design an application where the view part must be simple to replace by whomever installs it, with elements of their own design. This would work comparable to themes or skins. I've done some googling, but I haven't got any obvious hits on this. The closest I _think_ is CatalystX::Usul, but I haven't really understood if that's what I'm looking for :-) Also, I would also want the person installing the application to be able to restructure the visual parts using components, where a component could for instance be a result ticker, main menu, member table or such. Perhaps in the way that Joomla does, but the components will be application specific. It's much a matter of deciding what components are present in which views and where. I imagine, for instance, a collection of widgets (button, drop-down-list, text field etc) which are reused in the TT templates. A component would then use these widgets as building blocks, populating them using data from the stash. A view (webpage) would be a template including one or more of these components. A theme could then override any widgets of choice to change the look-and-feel of the whole application instantly. Am I approaching this from the right direction and does anyone know if there exists a framework similar to this to use with Catalyst? Or should I perhaps go barking up the TT tree? ;-) I am working on CatalystX::Elements with the first one being Comments - I am not sure if it goes in the same direction - but it seems close. The main goal is providing Catalyst feature addons - that could be used as kind of scaffolding - that is they should be easy to assemble, implying they are rather simplistic, and later easy to be gradually replaced. For now I am not dealing with templates at all - the Comments element lets you to stash a form which knows how to render itself into HTML and can be inserted somewhere in the templates. I've posted about it at my blog: http://perlalchemy.blogspot.com/2009/06/catalystxcomments-rfc.html (also have a look at the comment). There is some code for it at: http://github.com/gshank/ravlog/tree/8b7ec1493324212cde91927c15fc54cd2c9db25d/lib/CatalystX (but now I've decided to change the name and add Elements - a play on the chemical metaphor of Catalyst). -- Zbigniew Lukasiak http://brudnopis.blogspot.com/ http://perlalchemy.blogspot.com/ ___ List: Catalyst@lists.scsys.co.uk Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.uk/ Dev site: http://dev.catalyst.perl.org/
[Catalyst] PLEASE HELP - Action attribute documentation confusing (Was: default : Local v. default : Path)
Paul Makepeace wrote: FWIW, IMO, http://search.cpan.org/~hkclark/Catalyst-Manual-5.8000/lib/Catalyst/Manual/Intro.pod#Built-in_special_actions is a slightly odd place to be documenting in reference style the actions. Is there another place? This is one of those things I keep expecting has a home and then eventually finding back in the Manual's intro. This also just came up in irc: 10:10 Altreus how about Catalyst::Manual::Actions, which exists 10:11 Altreus or at least a link from there to that so people who click on that looking for action types get a link 10:12 Veep tom: hmm. I just went through this... let me see... it felt like the tutorial started very basic and clear, and then these weird :Blah things starting showing up. Explaining each one as it shows up there might help. So it's obviously not well enough documented/explain and confusing in both the regular Catalyst docs and the tutorial. Does someone want to step up and get this sorted out? Newcomers preferred - you'll be better at working out what isn't covered, as you don't know it back to front. Cheers t0m ___ List: Catalyst@lists.scsys.co.uk Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.uk/ Dev site: http://dev.catalyst.perl.org/
Re: [Catalyst] Parse errors: Tests out of sequence - any ideas?
kakim...@tpg.com.au wrote: I tried searching on google but I just don't know what's causing this. Any ideas would be welcomed. Something in your test is emitting something that looks like TAP, and so confusing the TAP parser.. Cheers t0m ___ List: Catalyst@lists.scsys.co.uk Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.uk/ Dev site: http://dev.catalyst.perl.org/
Re: [Catalyst] Polymorphism?
Dave Rolsky wrote: As do Moose roles. I've found using roles in controllers incredibly helpful, since I often have similar/same process this data and invoke a -search method, where the only thing that varies is what is being searched and/or the way the results are being displayed. Unfortunately, combining multiple roles with method attributes onto the same class totally fails right now. So: with $_ for qw/ControllerRole1 ControllerRole2/; # Works with qw/ControllerRole1 ControllerRole2/; # Attributes fail to show up. This means that conflict resolution (one of the nicest features of roles) fails to work :/ I have fixes for this in the pipeline; as always, volunteers welcome to take them off my hands and finish them off if you want this before I get time... ;) Cheers t0m ___ List: Catalyst@lists.scsys.co.uk Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.uk/ Dev site: http://dev.catalyst.perl.org/
Re: [Catalyst] how to implement Transactions (over different db tables) in a Catalyst project
kakim...@tpg.com.au wrote: Sorry, after reading it again after the many responses to this thread, I realised it's ok. It's _NOT OK_, as you didn't get it first time. So it's obviously not clear *enough*. Please supply the DBIC list with a doc patch to make it more clear and explicit. Thanks t0m ___ List: Catalyst@lists.scsys.co.uk Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.uk/ Dev site: http://dev.catalyst.perl.org/
Re: [Catalyst] Polymorphism?
Thanks all for the thoughts and the link. I'll be sure to take some time and digest that. Re: method modifiers, that sounds like a really interesting solution. Roles seem very similar to me to Java interfaces. I really need to get more on board with understanding how Moose can best be utilized. I'm still very green. Plus the proliferation of object frameworks in Perl can leave you with analysis paralysis but things seem to be moving more that way in the Perl community especially with Perl 6 (somewhere?) on the horizon. I've got the new Apress Catalyst book on pre-order. Any other recommended reading resources? Cheers, Eric On Tue, Jul 7, 2009 at 5:48 AM, Tomas Doran bobtf...@bobtfish.net wrote: Dave Rolsky wrote: As do Moose roles. I've found using roles in controllers incredibly helpful, since I often have similar/same process this data and invoke a -search method, where the only thing that varies is what is being searched and/or the way the results are being displayed. Unfortunately, combining multiple roles with method attributes onto the same class totally fails right now. So: with $_ for qw/ControllerRole1 ControllerRole2/; # Works with qw/ControllerRole1 ControllerRole2/; # Attributes fail to show up. This means that conflict resolution (one of the nicest features of roles) fails to work :/ I have fixes for this in the pipeline; as always, volunteers welcome to take them off my hands and finish them off if you want this before I get time... ;) Cheers t0m ___ List: Catalyst@lists.scsys.co.uk Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.uk/ Dev site: http://dev.catalyst.perl.org/ ___ List: Catalyst@lists.scsys.co.uk Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.uk/ Dev site: http://dev.catalyst.perl.org/
[Catalyst] offset the URI of an existing Cat App
Hi
I have always written Cat Apps so they start at the '/' URI but now I
have been asked to 'offset' one so that:-
/becomes /foo
/userbecomes /foo/user
/admin/1 becames /foo/admin/1
etc.
I saw the __PACKAGE__-config-{namespace} that could be used but this
would still require an entry in each of my controllers. e.g.
package MyApp::Controller::Root;
...
__PACKAGE__-config-{namespace} = 'foo';
...
package MyApp::Controller::Admin;
...
__PACKAGE__-config-{namespace} = 'foo/admin';
...
etc. which strikes me as very unsatisfactory.
I think I must have missed something. Is there a single point where I
can make a change that will replicate through all my controllers? Can
anyone put me right?
Regards
Ian
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Re: [Catalyst] Polymorphism?
On Tue, Jul 7, 2009 at 6:11 AM, Eric Wright i...@rapidsynergy.com wrote: Thanks all for the thoughts and the link. I'll be sure to take some time and digest that. Re: method modifiers, that sounds like a really interesting solution. Roles seem very similar to me to Java interfaces. I really need to get more on board with understanding how Moose can best be utilized. I'm still very green. Plus the proliferation of object frameworks in Perl can leave you with analysis paralysis but things seem to be moving more that way in the Perl community especially with Perl 6 (somewhere?) on the horizon. I've got the new Apress Catalyst book on pre-order. Any other recommended reading resources? Cheers, Eric I'm going to be very opinionated for a moment, so the TIMTOWDI crowd can skip this message. Don't bother with other object frameworks. They really lack what makes Moose special. Moose is built on top of Class::MOP. That's the meta-object protocol which enables you to have a meta-layer and change the entire API that Moose itself builds on. This lets you do a tremendous amount of things with usually very little code. The learning curve is also not quite as steep as you would expect. Here's an anecdote to prove my case ;) The other day I wanted to update the behavior of an attribute. Someone pointed out attribute trait. I looked it up in the cookbook, and I was able to get exactly what I wanted by changing the definition of what that attribute was. By changing the definition of things, you can change what the instances of those things are very easily. Unfortunately my case was thwarted by some other things, so it didn't work exactly as intended... but it will :) Unless you have experience with Lisp or the like, you're not going to initially appreciate what Moose is. You'll think of it as a heavy-weight object API, but trust a random guy on the internet when he says it is worth it. The manual is an easy read and worth following, and here is a good presentation on Moose as well (lacks a little oompf without hearing Dieter's voice): http://weftsoar.net/~hdp/moose/ Regarding books, I'd say venture out to your local Perl Monger meetings and talk to them and borrow some of their books. That way you can sample it, and find out the books that speak to you and then you can purchase those. Thanks, -J ___ List: Catalyst@lists.scsys.co.uk Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.uk/ Dev site: http://dev.catalyst.perl.org/
Re: [Catalyst] offset the URI of an existing Cat App
Ian Docherty wrote: I think I must have missed something. Is there a single point where I can make a change that will replicate through all my controllers? Can anyone put me right? this is done completely at the deployment config level. There's nothing to modify in your actual code. How are you deploying the app? FastCGI? mod_perl? etc. -- Peter Karman . http://peknet.com/ . pe...@peknet.com gpg key: 37D2 DAA6 3A13 D415 4295 3A69 448F E556 374A 34D9 ___ List: Catalyst@lists.scsys.co.uk Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.uk/ Dev site: http://dev.catalyst.perl.org/
Re: [Catalyst] offset the URI of an existing Cat App
Octavian Râsnita wrote:
But if in the templates you use urls like:
a href=/user.../a
you need to change them to urls like:
a href=[% c.uri_for('/user') %].../a
There is an alternative to using uri_for in every link:
base href=[% c.request.base %]
...
a href=user/a
This method will work whether your deployment is at the base of the
domain, or a subdirectory.
We used this method so that we could run applications under user
directories:
http://dev.server.com/~someuser/app1/
But then on production have them run at the base of their domain.
http://app1.domain.com/
- Jim
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Re: [Catalyst] offset the URI of an existing Cat App
From: Ian Docherty catal...@iandocherty.com
Hi
I have always written Cat Apps so they start at the '/' URI but now I have
been asked to 'offset' one so that:-
/becomes /foo
/userbecomes /foo/user
/admin/1 becames /foo/admin/1
Hi,
If using mod_perl, instead of:
Location /
SetHandler perl-script
PerlResponseHandler MyApp
/Location
use:
Location /foo
SetHandler perl-script
PerlResponseHandler MyApp
/Location
And the application should work at the new location.
But if in the templates you use urls like:
a href=/user.../a
you need to change them to urls like:
a href=[% c.uri_for('/user') %].../a
If you use fastcgi, instead of:
FastCgiExternalServer /tmp/myapp.fcgi -socket /tmp/myapp.socket
Alias / /tmp/myapp.fcgi/
you could use:
FastCgiExternalServer /tmp/myapp.fcgi -socket /tmp/myapp.socket
Alias /foo /tmp/myapp.fcgi/
Note! I know these only from theory, because I always needed to use apps
only at /.
HTH.
Octavian
etc.
I saw the __PACKAGE__-config-{namespace} that could be used but this
would still require an entry in each of my controllers. e.g.
package MyApp::Controller::Root;
...
__PACKAGE__-config-{namespace} = 'foo';
...
package MyApp::Controller::Admin;
...
__PACKAGE__-config-{namespace} = 'foo/admin';
...
etc. which strikes me as very unsatisfactory.
I think I must have missed something. Is there a single point where I can
make a change that will replicate through all my controllers? Can anyone
put me right?
Regards
Ian
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Re: [Catalyst] offset the URI of an existing Cat App
From: Jim Spath jsp...@pangeamedia.com
Octavian Râsnita wrote:
But if in the templates you use urls like:
a href=/user.../a
you need to change them to urls like:
a href=[% c.uri_for('/user') %].../a
There is an alternative to using uri_for in every link:
base href=[% c.request.base %]
...
a href=user/a
This method will work whether your deployment is at the base of the
domain, or a subdirectory.
Thanks for remembering about base. I think that this technique won't work
if the links start with / though, like:
a href=/user/a
So, it is better to create the links using uri_for() from the beginning or
use only relative links...
Octavian
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Re: [Catalyst] offset the URI of an existing Cat App
Octavian Râsnita wrote:
From: Ian Docherty catal...@iandocherty.com
Hi
I have always written Cat Apps so they start at the '/' URI but now I
have been asked to 'offset' one so that:-
/becomes /foo
/userbecomes /foo/user
/admin/1 becames /foo/admin/1
Hi,
If using mod_perl, instead of:
Location /
SetHandler perl-script
PerlResponseHandler MyApp
/Location
use:
Location /foo
SetHandler perl-script
PerlResponseHandler MyApp
/Location
And the application should work at the new location.
Thanks, that did the trick. I was looking for something more complicated!
But if in the templates you use urls like:
a href=/user.../a
you need to change them to urls like:
a href=[% c.uri_for('/user') %].../a
If you use fastcgi, instead of:
FastCgiExternalServer /tmp/myapp.fcgi -socket /tmp/myapp.socket
Alias / /tmp/myapp.fcgi/
you could use:
FastCgiExternalServer /tmp/myapp.fcgi -socket /tmp/myapp.socket
Alias /foo /tmp/myapp.fcgi/
Note! I know these only from theory, because I always needed to use apps
only at /.
HTH.
Octavian
etc.
I saw the __PACKAGE__-config-{namespace} that could be used but this
would still require an entry in each of my controllers. e.g.
package MyApp::Controller::Root;
...
__PACKAGE__-config-{namespace} = 'foo';
...
package MyApp::Controller::Admin;
...
__PACKAGE__-config-{namespace} = 'foo/admin';
...
etc. which strikes me as very unsatisfactory.
I think I must have missed something. Is there a single point where I
can make a change that will replicate through all my controllers? Can
anyone put me right?
Regards
Ian
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Re: [Catalyst] offset the URI of an existing Cat App
Hi Ian -
I have always written Cat Apps so they start at the '/' URI but now I
have been asked to 'offset' one so that:-
/becomes /foo
/userbecomes /foo/user
/admin/1 becames /foo/admin/1
One approach is to modify $c-prepare_path, similar to:
http://dev.catalyst.perl.org/wiki/wikicookbook/urlpathprefixing
(The example was written for Catalyst 5.7 and will work with 5.8, but
there's probably a Moose-ier way to do the same in 5.8...)
Something like:
--
package MyApp;
use Catalyst::Runtime '5.70';
use base 'Catalyst';
__PACKAGE__-setup();
sub prepare_path
{
my $c = shift;
$c-NEXT::prepare_path(@_);
my @path_chunks = split m[/], $c-request-path, -1;
# Pull prefix off beginning of request path:
my $prefix = shift @path_chunks;
# Create modified request path from any remaining path chunks:
my $new_path = join('/', @path_chunks) || '/';
$c-request-path($new_path);
# Modify the path part of the request base
# to include the path prefix:
my $base = $c-request-base;
$base-path($base-path . $prefix/);
return;
}
--
So if the url was /foo/admin/1, the controllers will see a request for
/admin/1. Also, $c-uri_for('some/path') will generate
/foo/some/path.
HTH,
Larry
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Re: [Catalyst] Integrating with ASP.NET sessions and authentication
Going out on a limb here but it's probable that the .NET apps are authenticating to an Active Directory or Primary Domain Controller, a Windoze domain in any case. They should offer the LDAP protocol and you could use that for authentication. Session management will occur at your Catalyst Server depending on the Session handling mechanism used (derivatives of Catalyst::Plugin::Session::Store). If you are using your database with Catalyst::Plugin::Session::Store::DBIC (or Session::Store::DBI) you may be able to share sessions with their .NET apps, if of course, you are both able to store the session in a common database (unlikely). In any case, you need to figure out how the ASP.NET apps are keeping their sessions. Speculating, it is unlikely that the session info will be compatible with the 2 platforms, especially on any extra-data that apps may store in the sessions, because of the different serialization schemes that may be used. If you are using PostgreSql on your Catalyst Apps you may do some magic with something like DBI Link which could help you integrate the ASP.NET session handling mechanism to a pgsql table and handle your sessions directly from you Pg database with DBIC. Another option would be to have some ASP.NET expert to write up the sync mechanism to a DB table accessible by your Catalyst apps. A one-way session sync should not be that hard, for example, from .NET to the DB where your Cat Apps are running. The first step is finding out how the ASP.NET apps are keeping their sessions. Maybe write your own Catalyst::Plugin::Session::Store and have it work directly with the .NET stuff ? On Tue, Jul 7, 2009 at 12:59 PM, Robert Mahr...@pobox.com wrote: I was wondering if anyone has integrated a Catalyst application with ASP.NET session and authentication (for single sign-on if possible). My company recently go acquired and we've been told to integrate our systems with theirs (ASP.NET). I know next to nothing about how .NET works and was hoping someone had already done the heavy lifting for me :-). Cheers, Rob ___ List: Catalyst@lists.scsys.co.uk Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.uk/ Dev site: http://dev.catalyst.perl.org/ ___ List: Catalyst@lists.scsys.co.uk Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.uk/ Dev site: http://dev.catalyst.perl.org/
[Catalyst] Catalyst crashing hard with UTF-8 string
I'm uploading utf-8 news feed data through a web form, processing it and reporting back to the user errors that are encountered during a news feed parse. In those error reports I'm including snippets of the input data via TT, [% IF telluser.error %] p class = error [% FOREACH error_msg = telluser.error %] [% TRY %] [% error_msg %] [% CATCH %] Error printing message [% END%] br / [% END %] /p [% END %] It turns out that if a UTF-8 string is in error_msg the backend request completely dies (I get a Proxy Error Reason: Error reading from remote server), even with use Catalyst /-Debug/ and that [% TRY %] block. I know it's UTF-8 because Encode::is_utf8 says so, and warn $string is showing up in the terminal correctly. The string contains a right single quote (E2 80 99): If I do [% error_msg | html_entities %] it is successfully converted to rsquo;. Altho unfortunately so are the HTML tags... Something's definitely changed wrt to UTF-8 behavior since we did our big upgrade from Catalyst 5.7. Are there any 'known gotchas' I could check? At this point my debugging fu runs out--help appreciated on where to look next. Paul ___ List: Catalyst@lists.scsys.co.uk Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.uk/ Dev site: http://dev.catalyst.perl.org/
