=item 9
-L<Appendices|Catalyst::Manual::Tutorial::Appendicies>
+L<Appendices|Catalyst::Manual::Tutorial::Appendices>
=back
pulled from the Catalyst Subversion repository in one step with the
following command:
- svn checkout http://dev.catalyst.perl.org/repos/Catalyst/trunk/examples/Tutorial@4609 .
- IMPORTANT: Does not work yet. Will be completed for final version.
+ svn co http://dev.catalyst.perl.org/repos/Catalyst/tags/examples/Tutorial/MyApp/5.7/CatalystBasics MyApp
=head1 CREATE A CATALYST PROJECT
Catalyst provides a number of helper scripts that can be used to quickly
flesh out the basic structure of your application. All Catalyst projects
-begin with the C<catalyst.pl> helper.
+begin with the C<catalyst.pl> helper (see L<Catalyst::Helper|Catalyst::Helper>
+for more information on helpers). Also note that as of Catalyst 5.7000,
+you will not have the helper scripts unless you install both
+L<Catalyst::Runtime|Catalyst::Runtime> and L<Catalyst::Devel|Catalyst::Devel>.
In the case of this tutorial, use the Catalyst C<catalyst.pl> script to
initialize the framework for an application called C<MyApp>:
following should be appended to the logging output of the development
server:
- [info] *** Request 1 (0.008/s) [2822] [Mon Jul 3 12:42:43 2006] ***
+ [info] *** Request 1 (0.043/s) [6003] [Fri Jul 7 13:32:53 2006] ***
[debug] "GET" request for "/" from "127.0.0.1"
- [info] Request took 0.154781s (6.461/s)
+ [info] Request took 0.067675s (14.777/s)
.----------------------------------------------------------------+-----------.
| Action | Time |
+----------------------------------------------------------------+-----------+
- | /default | 0.069475s |
- | /end | 0.085305s |
+ | /default | 0.002844s |
+ | /end | 0.000207s |
'----------------------------------------------------------------+-----------'
Press Ctrl-C to break out of the development server.
$c->stash->{books} = [$c->model('MyAppDB::Book')->all];
# Set the TT template to use. You will almost always want to do this
- # in your action methods.
+ # in your action methods (actions methods respond to user input in
+ # your controllers).
$c->stash->{template} = 'books/list.tt2';
}
L<http://www.masonbook.com>) and L<HTML::Template|HTML::Template>
(L<http://html-template.sourceforge.net>).
-=head2 Create a Catalyst View Using C<TTSITE>
+=head2 Create a Catalyst View Using C<TTSite>
When using TT for the Catalyst view, there are two main helper scripts:
B<TIP>: When troubleshooting TT it can be helpful to enable variable
C<DEBUG> options. You can do this in a Catalyst environment by adding
a C<DEBUG> line to the C<__PACKAGE__->config> declaration in
-C<MyApp/View/TT.pm>:
+C<lib/MyApp/View/TT.pm>:
__PACKAGE__->config({
CATALYST_VAR => 'Catalyst',
portion of the name shown in the TT docs and convert to lower case
for use inside Catalyst).
+B<NOTE:> Please be sure to disable TT debug options before
+continuing the tutorial (especially the 'undef' option -- leaving
+this enabled will conflict with several of the conventions used
+by this tutorial and TTSite to leave some variables undefined
+on purpose).
+
=head2 Using C<RenderView> for the Default View
end action" to your application class (C<MyApp.pm>) or Root.pm
(C<MyApp/Controller/Root.pm>). These examples should be easily
converted to L<RenderView|Catalyst::Action::RenderView> by simply adding
-C<ActionClass('RenderView')> to the C<sub end> definition. If end sub is
-defined in your application class (C<MyApp.pm>), you should also migrate
-it to C<MyApp/Controller/Root.pm>.
+the attribute C<:ActionClass('RenderView')> to the C<sub end>
+definition. If end sub is defined in your application class
+(C<MyApp.pm>), you should also migrate it to
+C<MyApp/Controller/Root.pm>.
=item *
It also allowed you to add "dump_info=1" (precede with "?" or "&"
depending on where it is in the URL) to I<force> the debug screen at the
end of the Catalyst request processing cycle. However, it was more
-difficult to extend the C<RenderView> mechanism, and is now deprecated.
+difficult to extend than the C<RenderView> mechanism, and is now
+deprecated.
=item *
<td>
[% # First initialize a TT variable to hold a list. Then use a TT FOREACH -%]
[% # loop in 'side effect notation' to load just the last names of the -%]
- [% # authors into the list. Note that we make a bogus assignment to the -%]
- [% # 'unused' vbl to avoid printing the size of the list after each push. -%]
+ [% # authors into the list. Note that the 'push' TT vmethod does not -%]
+ [% # a value, so nothing will be printed here. But, if you have something -%]
+ [% # in TT that does return a method and you don't want it printed, you -%]
+ [% # can: 1) assign it to a bogus value, or 2) use the CALL keyword to -%]
+ [% # call it and discard the return value. -%]
[% tt_authors = [ ];
- unused = tt_authors.push(author.last_name) FOREACH author = book.authors %]
+ tt_authors.push(author.last_name) FOREACH author = book.authors %]
[% # Now use a TT 'virtual method' to display the author count in parens -%]
([% tt_authors.size %])
- [% # Use another vmethod to join & print the names with comma separators -%]
+ [% # Use another TT vmethod to join & print the names & comma separators -%]
[% tt_authors.join(', ') %]
</td>
</tr>
Kennedy Clark, C<hkclark@gmail.com>
Please report any errors, issues or suggestions to the author. The
-most recent version of the Catlayst Tutorial can be found at
+most recent version of the Catalyst Tutorial can be found at
L<http://dev.catalyst.perl.org/repos/Catalyst/trunk/Catalyst-Runtime/lib/Catalyst/Manual/Tutorial/>.
Copyright 2006, Kennedy Clark, under Creative Commons License
projects / catagits/Catalyst-Runtime.git / blobdiff