I just finished the tutorial on CPAN a couple of weeks ago. A join is created shortly after your first code sample. 

        # Add a record to the join table for this book, mapping to 
        # appropriate author
        $book->add_to_book_authors({author_id => $author_id});
        # Note: Above is a shortcut for this:
        # $book->create_related('book_authors', {author_id => $author_
+id});
        
        # Assign the Book object to the stash for display in the view
        $c->stash->{book} = $book;

[download]

As for your second question. You need to show me what you have in the list subroutine for me to understand what is going on. Your template file is calling 'books/list' which means 'sub list' in Books.pm (you should have created that in the previous tutorial "More Catalyst Basics' In the tutorial on CPAN it looks like this: 

     
    sub list : Local {
        # Retrieve the usual Perl OO '$self' for this object. $c is th
+e Catalyst
        # 'Context' that's used to 'glue together' the various compone
+nts
        # that make up the application
        my ($self, $c) = @_;
    
        # Retrieve all of the book records as book model objects and s
+tore in the
        # stash where they can be accessed by the TT template
        $c->stash->{books} = [$c->model('DB::Books')->all];
        
        # Set the TT template to use.  You will almost always want to 
+do this
        # in your action methods (action methods respond to user input
+ in
        # your controllers).
        $c->stash->{template} = 'books/list.tt2';
    }

[download]

If you haven't been there yet you can find all the most updated chapters on CPAN here

-Actualize

In reply to Re: Catalyst: model & context object usage by actualize
in thread Catalyst: model & context object usage by marscld

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