X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=catagits%2FCatalyst-Manual.git;a=blobdiff_plain;f=lib%2FCatalyst%2FManual%2FIntro.pod;h=9eaaf37077d9708d91d2272d5d4dc8d044fb33b2;hp=f0895f503b893e1754b9b7cab816a3959ee60bb6;hb=54550e133a0ef80726b4fac78299b907f5f6948d;hpb=08cb655fc7727601466be297a251b56a4fed6e34

diff --git a/lib/Catalyst/Manual/Intro.pod b/lib/Catalyst/Manual/Intro.pod
index f0895f5..9eaaf37 100644
--- a/lib/Catalyst/Manual/Intro.pod
+++ b/lib/Catalyst/Manual/Intro.pod
@@ -357,7 +357,7 @@ Now we can create a DBIC::Schema model for this database.
 
     script/myapp_create.pl model MyModel DBIC::Schema MySchema create=static 'dbi:SQLite:/tmp/myapp.db'
 
-L<DBIx::Class::Schema::Loader> can automaticall load table layouts and
+L<DBIx::Class::Schema::Loader> can automatically load table layouts and
 relationships, and convert them into a static schema definition
 C<MySchema>, which you can edit later.
 
@@ -847,7 +847,7 @@ of the path is passed as arguments.
 Matches any URL beginning with> http://localhost:3000/my/controller/foo. The namespace and
 subroutine name together determine the path.
 
-=item * Namespace-level (C<:Global>)
+=item * Root-level (C<:Global>)
 
     package MyApp::Controller::Foo;
     sub foo : Global { }
@@ -855,8 +855,9 @@ subroutine name together determine the path.
 Matches http://localhost:3000/foo - that is, the action is mapped
 directly to the controller namespace, ignoring the function name.
 
-C<:Global> is equivalent C<:Local> one level higher in
-the namespace.
+C<:Global> always matches from root: it is sugar for C<:Path('/methodname')>.
+C<:Local> is simply sugar for C<:Path('methodname')>, which takes the package
+namespace as described above.
 
     package MyApp::Controller::Root;
     __PACKAGE__->config->{namespace}='';
@@ -887,7 +888,9 @@ C<:Args(0)> means that no arguments are taken.  Thus, the URL and path must
 match precisely.
 
 No :Args at all means that B<any number> of arguments are taken.  Thus, any
-URL that B<starts with> the controller's path will match.
+URL that B<starts with> the controller's path will match. Obviously, this means
+you cannot chain from an action that does not specify args, as the next action
+in the chain will be swallowed as an arg to the first!
 
 
 =item * Literal match (C<:Path>)
@@ -1262,9 +1265,9 @@ be reset.
         # now $c->req->args is back to what it was before
     }
 
-    sub check_message : Private {
-        my ( $self, $c ) = @_;
-        my $first_argument = $c->req->args->[0]; # now = 'test1'
+    sub check_message : Action {
+        my ( $self, $c, $first_argument ) = @_;
+        my $also_first_argument = $c->req->args->[0]; # now = 'test1'
         # do something...
     }
 
@@ -1276,14 +1279,11 @@ you will have to refer to the method by absolute path.
   $c->forward('/my/controller/action');
   $c->forward('/default'); # calls default in main application
 
-Here are some examples of how to forward to classes and methods.
-
-    # FIXME - Forwarding to a model is unusual, a better example would show
-    #         forwarding to render in TT which is useful for drawing sub-parts of pages..
+You can also forward to classes and methods.
 
     sub hello : Global {
         my ( $self, $c ) = @_;
-        $c->forward(qw/MyApp::Model::Hello say_hello/);
+        $c->forward(qw/MyApp::View:Hello say_hello/);
     }
 
     sub bye : Global {
@@ -1291,7 +1291,7 @@ Here are some examples of how to forward to classes and methods.
         $c->forward('MyApp::Model::Hello'); # no method: will try 'process'
     }
 
-    package MyApp::Model::Hello;
+    package MyApp::View::Hello;
 
     sub say_hello {
         my ( $self, $c ) = @_;
@@ -1303,6 +1303,28 @@ Here are some examples of how to forward to classes and methods.
         $c->res->body('Goodbye World!');
     }
 
+This mechanism is used by L<Catalyst::Action::RenderView> to forward
+to the C<process> method in a view class.
+
+It should be noted that whilst forward is useful, it is not the only way
+of calling other code in Catalyst. Forward just gives you stats in the debug
+screen, wraps the code you're calling in an exception handler and localises
+C<< $c->request->args >>.
+
+If you don't want or need these features then it's perfectly acceptable
+(and faster) to do something like this:
+
+    sub hello : Global {
+        my ( $self, $c ) = @_;
+        $c->stash->{message} = 'Hello World!';
+        $self->check_message( $c, 'test1' );
+    }
+    
+    sub check_message {
+        my ( $self, $c, $first_argument ) = @_;
+        # do something...
+    }
+
 Note that C<forward> returns to the calling action and continues
 processing after the action finishes. If you want all further processing
 in the calling action to stop, use C<detach> instead, which will execute
@@ -1310,7 +1332,6 @@ the C<detach>ed action and not return to the calling sub. In both cases,
 Catalyst will automatically try to call process() if you omit the
 method.
 
-
 =head3 Testing
 
 Catalyst has a built-in http server for testing or local