sub end : Private {
my ( $self, $c ) = @_;
- die "testing";
+ die "forced debug";
}
-If you're tired of removing and adding this all the time, you
-can easily add a condition. For example:
+If you're tired of removing and adding this all the time, you can add a
+condition in the C<end> action. For example:
+
+ sub end : Private {
+ my ( $self, $c ) = @_;
+ die "forced debug" if $c->req->params->{dump_info};
+ }
+
+Then just add to your query string C<"&dump_info=1">, or the like, to
+force debug output.
- die "Testing" if $c->params->{dump_info};
=head2 Disable statistics
1;
-Modify the $c->form() parameters to match your needs, and don't forget to copy
-the templates. ;)
+Modify the C<$c-E<gt>form()> parameters to match your needs, and don't
+forget to copy the templates into the template root. Can't find the
+templates? They were in the CRUD model distribution, so you can do
+B<look Catalyst::Model::CDBI::CRUD> from the CPAN shell to find them.
+
+Other Scaffolding modules are in development at the time of writing.
-=head2 Single file upload with Catalyst
+=head2 File uploads
+
+=head3 Single file upload with Catalyst
To implement uploads in Catalyst you need to have a HTML form similiar to
this:
<input type="submit" value="Send">
</form>
-It's very important not to forget C<enctype="multipart/form-data"> in form. Uploads will not work without this.
+It's very important not to forget C<enctype="multipart/form-data"> in
+the form.
Catalyst Controller module 'upload' action:
$c->stash->{template} = 'file_upload.html';
}
-=head2 Multiple file upload with Catalyst
+=head3 Multiple file upload with Catalyst
-Code for uploading multiple files from one form needs little changes compared
-to single file upload.
+Code for uploading multiple files from one form needs a few changes:
-Form goes like this:
+The form should have this basic structure:
<form action="/upload" method="post" enctype="multipart/form-data">
<input type="hidden" name="form_submit" value="yes">
<input type="submit" value="Send">
</form>
-Controller:
+And in the controller:
sub upload : Local {
my ($self, $c) = @_;
$c->stash->{template} = 'file_upload.html';
}
-C<for my $field ($c-E<gt>req->upload)> loops automatically over all file input
-fields and gets input names. After that is basic file saving code, just like in
-single file upload.
+C<for my $field ($c-E<gt>req->upload)> loops automatically over all file
+input fields and gets input names. After that is basic file saving code,
+just like in single file upload.
-Notice: C<die>ing might not be what you want to do, when an error occurs, but
-it works as an example. A better idea would be to store error C<$!> in
-$c->stash->{error} and show a custom error template displaying this message.
+Notice: C<die>ing might not be what you want to do, when an error
+occurs, but it works as an example. A better idea would be to store
+error C<$!> in $c->stash->{error} and show a custom error template
+displaying this message.
For more information about uploads and usable methods look at
-C<Catalyst::Request::Upload> and C<Catalyst::Request>.
+L<Catalyst::Request::Upload> and L<Catalyst::Request>.
=head2 Authentication with Catalyst::Plugin::Authentication::CDBI
There are (at least) two ways to implement authentication with this plugin:
1) only checking username and password;
-2) checking username, password and the roles the user has
+2) checking username, password, and the roles the user has
For both variants you'll need the following code in your MyApp package:
And this is all you need to do.
+=head2 Pass-through login (and other actions)
+
+An easy way of having assorted actions that occur during the processing
+of a request that are orthogonal to its actual purpose - logins, silent
+commands etc. Provide actions for these, but when they're required for
+something else fill e.g. a form variable __login and have a sub begin
+like so:
+
+ sub begin : Private {
+ my ($self, $c) = @_;
+ foreach my $action (qw/login docommand foo bar whatever/) {
+ if ($c->req->params->{"__${action}"}) {
+ $c->forward($action);
+ }
+ }
+ }
=head2 How to use Catalyst without mod_perl
just too slow. There's also an alternative to mod_perl that gives
reasonable performance named FastCGI.
-B<Using FastCGI>
+=head3 Using FastCGI
To quote from L<http://www.fastcgi.com/>: "FastCGI is a language
independent, scalable, extension to CGI that provides high performance
For more information see the FastCGI documentation, the C<FCGI> module
and L<http://www.fastcgi.com/>.
+
+=head2 Serving static content
+
+Serving static content in Catalyst can be somewhat tricky; this recipe
+shows one possible solution. Using this recipe will serve all static
+content through Catalyst when developing with the built-in HTTP::Daemon
+server, and will make it easy to use Apache to serve the content when
+your app goes into production.
+
+Static content is best served from a single directory within your root
+directory. Having many different directories such as C<root/css> and
+C<root/images> requires more code to manage, because you must separately
+identify each static directory--if you decide to add a C<root/js>
+directory, you'll need to change your code to account for it. In
+contrast, keeping all static directories as subdirectories of a main
+C<root/static> directory makes things much easier to manager. Here's an
+example of a typical root directory structure:
+
+ root/
+ root/content.tt
+ root/controller/stuff.tt
+ root/header.tt
+ root/static/
+ root/static/css/main.css
+ root/static/images/logo.jpg
+ root/static/js/code.js
+
+
+All static content lives under C<root/static> with everything else being
+Template Toolkit files. Now you can identify the static content by
+matching C<static> from within Catalyst.
+
+=head3 Serving with HTTP::Daemon (myapp_server.pl)
+
+To serve these files under the standalone server, we first must load the
+Static plugin. Install L<Catalyst::Plugin::Static> if it's not already
+installed.
+
+In your main application class (MyApp.pm), load the plugin:
+
+ use Catalyst qw/-Debug FormValidator Static OtherPlugin/;
+
+You will also need to make sure your end method does I<not> forward
+static content to the view, perhaps like this:
+
+ sub end : Private {
+ my ( $self, $c ) = @_;
+
+ $c->forward( 'MyApp::V::TT' )
+ unless ( $c->res->body || !$c->stash->{template} );
+ }
+
+This code will only forward to the view if a template has been
+previously defined by a controller and if there is not already data in
+C<$c-E<gt>res-E<gt>body>.
+
+Next, create a controller to handle requests for the /static path. Use
+the Helper to save time. This command will create a stub controller as
+C<lib/MyApp/C/Static.pm>.
+
+ $ script/myapp_create.pl controller Static
+
+Edit the file and add the following methods:
+
+ # serve all files under /static as static files
+ sub default : Path('/static') {
+ my ( $self, $c ) = @_;
+
+ # Optional, allow the browser to cache the content
+ $c->res->headers->header( 'Cache-Control' => 'max-age=86400' );
+
+ $c->serve_static; # from Catalyst::Plugin::Static
+ }
+
+ # also handle requests for /favicon.ico
+ sub favicon : Path('/favicon.ico') {
+ my ( $self, $c ) = @_;
+
+ $c->serve_static;
+ }
+
+You can also define a different icon for the browser to use instead of
+favicon.ico by using this in your HTML header:
+
+ <link rel="icon" href="/static/myapp.ico" type="image/x-icon" />
+
+=head3 Common problems
+
+The Static plugin makes use of the C<shared-mime-info> package to
+automatically determine MIME types. This package is notoriously
+difficult to install, especially on win32 and OSX. For OSX the easiest
+path might be to install Fink, then use C<apt-get install
+shared-mime-info>. Restart the server, and everything should be fine.
+
+Make sure you are using the latest version (>= 0.16) for best
+results. If you are having errors serving CSS files, or if they get
+served as text/plain instead of text/css, you may have an outdated
+shared-mime-info version. You may also wish to simply use the following
+code in your Static controller:
+
+ if ($c->req->path =~ /css$/i) {
+ $c->serve_static( "text/css" );
+ } else {
+ $c->serve_static;
+ }
+
+=head3 Serving with Apache
+
+When using Apache, you can completely bypass Catalyst and the Static
+controller by intercepting requests for the C<root/static> path at the
+server level. All that is required is to define a DocumentRoot and add a
+separate Location block for your static content. Here is a complete
+config for this application under mod_perl 1.x; variations, some of
+which could be simpler, are left as an exercise for the reader:
+
+ <Perl>
+ use lib qw(/var/www/MyApp/lib);
+ </Perl>
+ PerlModule MyApp
+
+ <VirtualHost *>
+ ServerName myapp.example.com
+ DocumentRoot /var/www/MyApp/root
+ <Location />
+ SetHandler perl-script
+ PerlHandler MyApp
+ </Location>
+ <LocationMatch "/(static|favicon.ico)">
+ SetHandler default-handler
+ </LocationMatch>
+ </VirtualHost>
+
+=head2 Forwarding with arguments
+
+Sometimes you want to pass along arguments when forwarding to another
+action. As of version 5.30, arguments can be passed in the call to
+C<forward>; in earlier versions, you can manually set the arguments in
+the Catalyst Request object:
+
+ # version 5.30 and later:
+ $c->forward('/wherever', [qw/arg1 arg2 arg3/]);
+
+ # pre-5.30
+ $c->req->args([qw/arg1 arg2 arg3/]);
+ $c->forward('/wherever');
+
+(See L<Catalyst::Manual::Intro#Flow_Control> for more information on
+passing arguments via C<forward>.)
+
+=head2 Configure your application
+
+You configure your application with the C<config> method in your
+application class. This can be hard-coded, or brought in from a
+separate configuration file.
+
+=head3 Using YAML
+
+YAML is a method for creating flexible and readable configuration
+files. It's a great way to keep your Catalyst application configuration
+in one easy-to-understand location.
+
+In your application class (e.g. C<lib/MyApp.pm>):
+
+ use YAML;
+ # application setup
+ __PACKAGE__->config( YAML::LoadFile(__PACKAGE__->config->{'home'} . '/myapp.yml') );
+ __PACKAGE__->setup;
+
+Now create C<myapp.yml> in your application home:
+
+ --- #YAML:1.0
+ # DO NOT USE TABS FOR INDENTATION OR label/value SEPARATION!!!
+ name: MyApp
+
+ # authentication; perldoc Catalyst::Plugin::Authentication::CDBI
+ authentication:
+ user_class: 'MyApp::M::MyDB::Customer'
+ user_field: 'username'
+ password_field: 'password'
+ password_hash: 'md5'
+ role_class: 'MyApp::M::MyDB::Role'
+ user_role_class: 'MyApp::M::MyDB::PersonRole'
+ user_role_user_field: 'person'
+
+ # session; perldoc Catalyst::Plugin::Session::FastMmap
+ session:
+ expires: '3600'
+ rewrite: '0'
+ storage: '/tmp/myapp.session'
+
+ # emails; perldoc Catalyst::Plugin::Email
+ # this passes options as an array :(
+ email:
+ - SMTP
+ - localhost
+
+This is equivalent to:
+
+ # configure base package
+ __PACKAGE__->config( name => MyApp );
+ # configure authentication
+ __PACKAGE__->config->{authentication} = {
+ user_class => 'MyApp::M::MyDB::Customer',
+ ...
+ };
+ # configure sessions
+ __PACKAGE__->config->{session} = {
+ expires => 3600,
+ ...
+ };
+ # configure email sending
+ __PACKAGE__->config->{email} = [qw/SMTP localhost/];
+
+See also L<YAML>.
=head1 AUTHOR
Sebastian Riedel, C<sri@oook.de>
-Danijel Milicevic C<me@danijel.de>
-Viljo Marrandi C<vilts@yahoo.com>
+Danijel Milicevic, C<me@danijel.de>
+Viljo Marrandi, C<vilts@yahoo.com>
+Marcus Ramberg, C<mramberg@cpan.org>
+Jesse Sheidlower, C<jester@panix.com>
+Andy Grundman, C<andy@hybridized.org>
Marcus Ramberg C<mramberg@cpan.org>
+Chisel Wright C<pause@herlpacker.co.uk>
=head1 COPYRIGHT
projects / catagits/Catalyst-Runtime.git / blobdiff