X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FCatalyst%2FManual%2FTutorial%2F02_CatalystBasics.pod;h=78158e6882a6a34b0455ecc91089cf5ee94f2c06;hb=ec3ef4ad2ba72cc751c8c5eccccb705602d87d09;hp=27f1dcd7bb228706b3d067ee23f742fcc69144bc;hpb=444d6b277933a652eb38bbeae072dbdfbe47c1c8;p=catagits%2FCatalyst-Manual.git

diff --git a/lib/Catalyst/Manual/Tutorial/02_CatalystBasics.pod b/lib/Catalyst/Manual/Tutorial/02_CatalystBasics.pod
index 27f1dcd..78158e6 100644
--- a/lib/Catalyst/Manual/Tutorial/02_CatalystBasics.pod
+++ b/lib/Catalyst/Manual/Tutorial/02_CatalystBasics.pod
@@ -188,13 +188,20 @@ Run the following command to start up the built-in development web
 server (make sure you didn't forget the "C<cd Hello>" from the 
 previous step):
 
-    $ script/hello_server.pl
+B<Note>: The "-r" argument enables reloading on code changes so you 
+don't have to stop and start the server when you update code. See 
+C<perldoc script/hello_server.pl> or C<script/hello_server.pl --help>
+for additional options you might find helpful. Most of the rest of the
+tutorial will assume that you are using "-r" when you start the development
+server, but feel free to manually start and stop it (use C<Ctrl-C> to
+breakout of the dev server) if you prefer. 
+
+    $ script/hello_server.pl -r
     [debug] Debug messages enabled
     [debug] Statistics enabled
     [debug] Loaded plugins:
     .----------------------------------------------------------------------------.
-    | Catalyst::Plugin::ConfigLoader  0.23                                       |
-    | Catalyst::Plugin::Static::Simple  0.21                                     |
+    | Catalyst::Plugin::ConfigLoader  0.27                                       |
     '----------------------------------------------------------------------------'
     
     [debug] Loaded dispatcher "Catalyst::Dispatcher"
@@ -221,11 +228,11 @@ previous step):
     .-------------------------------------+--------------------------------------.
     | Path                                | Private                              |
     +-------------------------------------+--------------------------------------+
-    | /                                   | /default                             |
     | /                                   | /index                               |
+    | /                                   | /default                             |
     '-------------------------------------+--------------------------------------'
     
-    [info] Hello powered by Catalyst 5.80013
+    [info] Hello powered by Catalyst 5.80020
     You can connect to your server at http://debian:3000
 
 Point your web browser to L<http://localhost:3000> (substituting a 
@@ -235,17 +242,19 @@ screen or an "Index" screen, you probably forgot to specify port 3000
 in your URL).  Information similar to the following should be appended 
 to the logging output of the development server:
 
-    [info] *** Request 1 (0.005/s) [20712] [Sun Oct 11 11:58:51 2009] ***
-    [debug] "GET" request for "/" from "172.0.0.1"
-    [info] Request took 0.007342s (136.203/s)
-    .----------------------------------------------------------------+-----------.
-    | Action                                                         | Time      |
-    +----------------------------------------------------------------+-----------+
-    | /index                                                         | 0.000491s |
-    | /end                                                           | 0.000595s |
-    '----------------------------------------------------------------+-----------'
+    [info] *** Request 1 (0.001/s) [23194] [Sat Jan 16 11:09:18 2010] ***
+    [debug] "GET" request for "/" from "127.0.0.1"
+    [debug] Path is "/"
+    [info] Request took 0.004851s (206.143/s)
+    .------------------------------------------------------------+-----------.
+    | Action                                                     | Time      |
+    +------------------------------------------------------------+-----------+
+    | /index                                                     | 0.000395s |
+    | /end                                                       | 0.000425s |
+    '------------------------------------------------------------+-----------'
 
-Press Ctrl-C to break out of the development server.
+B<Note>: Press C<Ctrl-C> to break out of the development server if 
+necessary.
 
 
 =head1 HELLO WORLD
@@ -256,9 +265,7 @@ The Root.pm controller is a place to put global actions that usually
 execute on the root URL. Open the C<lib/Hello/Controller/Root.pm> file in 
 your editor. You will see the "index" subroutine, which is 
 responsible for displaying the welcome screen that you just saw in 
-your browser. Later on you'll want to change that to something more 
-reasonable, such as a "404" message or a redirect, but for now just 
-leave it alone.
+your browser. 
 
     sub index :Path :Args(0) {
         my ( $self, $c ) = @_;
@@ -267,6 +274,9 @@ leave it alone.
         $c->response->body( $c->welcome_message );
     }
 
+Later on you'll want to change that to something more reasonable, such 
+as a "404" message or a redirect, but for now just leave it alone. 
+
 The "C<$c>" here refers to the Catalyst context, which is used to 
 access the Catalyst application. In addition to many other things, 
 the Catalyst context provides access to "response" and "request" 
@@ -275,14 +285,14 @@ L<Catalyst::Response|Catalyst::Response>, and
 L<Catalyst::Request|Catalyst::Request>) 
 
 C<$c-E<gt>response-E<gt>body> sets the HTTP response (see 
-L<Catalyst::Response|Catalyst::Response>), while C<$c-E<gt>welcome_message> 
-is a special method that returns the welcome message that you saw in 
-your browser.
+L<Catalyst::Response|Catalyst::Response>), while 
+C<$c-E<gt>welcome_message> is a special method that returns the 
+welcome message that you saw in your browser.
 
 The ":Path :Args(0)" after the method name are attributes which 
 determine which URLs will be dispatched to this method. (You might see 
 ":Private" if you are using an older version of Catalyst, but using 
-that with 'default' or 'index' is currently deprecated.  If so, you 
+that with "default" or "index" is currently deprecated.  If so, you 
 should also probably upgrade before continuing the tutorial.)
 
 Some MVC frameworks handle dispatching in a central place. Catalyst, 
@@ -303,21 +313,51 @@ C<create> method.
 Add the following subroutine to your C<lib/Hello/Controller/Root.pm> 
 file:
 
-    sub hello : Global {
+    sub hello :Global {
         my ( $self, $c ) = @_;
         
         $c->response->body("Hello, World!");
     }
 
+Once you restart the server, you will need to use the new address
+L<http://localhost:3000/hello> instead of L<http://localhost:3000/> to see the
+changes.
+
 B<TIP>: See Appendix 1 for tips on removing the leading spaces when
 cutting and pasting example code from POD-based documents.
 
 Here you're sending your own string to the webpage.
 
-Save the file, start the server (stop and restart it if it's still 
-running), and go to L<http://localhost:3000/hello> to 
-see "Hello, World!"  Also notice that a new action is listed under
-"Loaded Private actions" in the development server debug output.
+Save the file, and you should notice the following in your server output:
+
+    Saw changes to the following files:
+     - /home/me/Hello/lib/Hello/Controller/Root.pm (modify)
+    
+    Attempting to restart the server
+    ...
+    [debug] Loaded Private actions:
+    .----------------------+--------------------------------------+--------------.
+    | Private              | Class                                | Method       |
+    +----------------------+--------------------------------------+--------------+
+    | /default             | Hello::Controller::Root              | default      |
+    | /end                 | Hello::Controller::Root              | end          |
+    | /index               | Hello::Controller::Root              | index        |
+    | /hello               | Hello::Controller::Root              | hello        |
+    '----------------------+--------------------------------------+--------------'
+    
+    [debug] Loaded Path actions:
+    .-------------------------------------+--------------------------------------.
+    | Path                                | Private                              |
+    +-------------------------------------+--------------------------------------+
+    | /                                   | /index                               |
+    | /                                   | /default                             |
+    | /hello                              | /hello                               |
+    '-------------------------------------+--------------------------------------'
+    ...
+
+Go to L<http://localhost:3000/hello> to see "Hello, World!".   Also 
+notice that the newly defined 'hello' action is listed under "Loaded 
+Private actions" in the development server debug output.
 
 
 =head2 Hello, World! Using a View and a Template
@@ -331,9 +371,9 @@ Toolkit Template template file), the actual templates go under the
 
 To create a TT view, run:
 
-    $ script/hello_create.pl view TT TT
+    $ script/hello_create.pl view HTML TT
 
-This creates the C<lib/Hello/View/TT.pm> module, which is a subclass of 
+This creates the C<lib/Hello/View/HTML.pm> module, which is a subclass of 
 C<Catalyst::View::TT>. 
 
 =over 4
@@ -344,9 +384,11 @@ The "view" keyword tells the create script that you are creating a view.
 
 =item *
 
-The first "TT" tells the script to name the View module "TT.pm", which is a
-commonly used name for TT views.  (You can name it anything you want, such as
-"HTML.pm".)
+The first argument "HTML" tells the script to name the View module "HTML.pm",
+which is a commonly used name for TT views.  You can name it anything you want,
+such as "MyView.pm". If you have more than one view, be sure to set the
+default_view in Hello.pm (See L<Catalyst::View::TT|Catalyst::View::TT> for more
+details on setting this).
 
 =item *
 
@@ -355,12 +397,12 @@ indicating that you want to a Template Toolkit view.
 
 =back
 
-If you look at C<lib/Hello/View/TT.pm> you will find that it only 
+If you look at C<lib/Hello/View/HTML.pm> you will find that it only 
 contains a config statement to set the TT extension to ".tt".
 
-Now that the TT.pm "View" exists, Catalyst will autodiscover it and be 
+Now that the HTML.pm "View" exists, Catalyst will autodiscover it and be 
 able to use it to display the view templates using the "process" 
-method that it inherits from the C<Catalyst::View::TT class>.
+method that it inherits from the C<Catalyst::View::TT> class.
 
 Template Toolkit is a very full featured template facility, with 
 excellent documentation at L<http://template-toolkit.org/>, 
@@ -371,7 +413,7 @@ chapters of the tutorial).
 Create a C<root/hello.tt> template file (put it in the C<root> under 
 the C<Hello> directory that is the base of your application). Here is 
 a simple sample:
-  
+
     <p>
         This is a TT view template, called '[% template.name %]'.
     </p>
@@ -384,10 +426,10 @@ template file (C<hello.tt>).  The rest of the template is normal HTML.
 Change the hello method in C<lib/Hello/Controller/Root.pm> to the 
 following:
 
-    sub hello : Global {
+    sub hello :Global {
         my ( $self, $c ) = @_;
         
-        $c->stash->{template} = 'hello.tt';
+        $c->stash(template => 'hello.tt');
     }
 
 This time, instead of doing C<$c-E<gt>response-E<gt>body()>, you are 
@@ -400,9 +442,37 @@ default) view to be rendered (unless there's a C<$c-E<gt>response-
 E<gt>body()> statement). So your template will be magically displayed 
 at the end of your method.
 
-After saving the file, restart the development server, and look at 
-L<http://localhost:3000/hello> again. You should 
-see the template that you just made.
+After saving the file, the development server should automatically
+restart (again, the tutorial is written to assume that you are
+using the "-r" option -- manually restart it if you aren't), 
+and look at L<http://localhost:3000/hello> in your again. You 
+should see the template that you just made.
+
+B<TIP:> If you keep the server running with "-r" in a "background 
+window," don't let that window get totally hidden... if you have an 
+syntax error in your code, the debug server output will contain the 
+error information.
+
+B<Note:> You will probably run into a variation of the "stash"
+statement above that looks like:
+
+    $c->stash->{template} = 'hello.tt';
+
+Although this style is still relatively common, the approach we
+used previous is becoming more common because it allows you to
+set multiple stash variables in one line.  For example:
+
+    $c->stash(template => 'hello.tt', foo => 'bar', 
+              another_thing => 1);
+
+You can also set multiple stash values with a hashref:
+
+    $c->stash({template => 'hello.tt', foo => 'bar', 
+              another_thing => 1});
+
+Any of these formats work, but the C<$c-E<gt>stash(name =E<gt> value);>
+style is growing in popularity -- you may wish to use it all the 
+time (even when you are only setting a single value).
 
 
 =head1 CREATE A SIMPLE CONTROLLER AND AN ACTION
@@ -417,11 +487,11 @@ not much there.
 
 In C<lib/Hello/Controller/Site.pm>, add the following method:
 
-    sub test : Local {
+    sub test :Local {
         my ( $self, $c ) = @_;
     
-        $c->stash->{username} = "John";
-        $c->stash->{template} = 'site/test.tt';
+        $c->stash(username => 'John',
+                  template => 'site/test.tt');
     }
 
 Notice the "Local" attribute on the C<test> method. This will cause 
@@ -448,13 +518,13 @@ template file at that location. Include a line like:
 
     <p>Hello, [% username %]!</p>
 
-Bring up or restart the server.  Notice in the server output that 
-C</site/test> is listed in the Loaded Path actions. Go to 
-L<http://localhost:3000/site/test> in your browser.
-
 You should see your test.tt file displayed, including the name "John"
 that you set in the controller.
 
+Once the server automatically restarts, notice in the server 
+output that C</site/test> is listed in the Loaded Path actions. 
+Go to L<http://localhost:3000/site/test> in your browser.
+
 
 =head1 AUTHORS
 
@@ -465,5 +535,6 @@ Please report any errors, issues or suggestions to the author.  The
 most recent version of the Catalyst Tutorial can be found at
 L<http://dev.catalyst.perl.org/repos/Catalyst/Catalyst-Manual/5.80/trunk/lib/Catalyst/Manual/Tutorial/>.
 
-Copyright 2006-2008, Kennedy Clark & Gerda Shank, under Creative Commons License
+Copyright 2006-2010, Kennedy Clark, under the
+Creative Commons Attribution Share-Alike License Version 3.0
 (L<http://creativecommons.org/licenses/by-sa/3.0/us/>).