Download Catalyst 5.8, the Perl MVC Framework: Build scalable and by Antano Solar John PDF

By Antano Solar John

The booklet is written in an exploratory variety: attempt whatever after which know the way it really works. it is going to consultant you thru the good points of Catalyst utilizing real-world examples and systematic code snippets. while you're a Perl Developer and wish to bolster your ability via figuring out internet software improvement utilizing MVC rules, then this ebook is for you.

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Additional resources for Catalyst 5.8, the Perl MVC Framework: Build scalable and extendable web applications using the Agile MVC framework

Example text

33 ] Creating a Catalyst Application Let us revise what just happened: my ( $self, $c, @args ) = @_; my $word = $args[0] || 'Default word'; $c->stash->{word} = $word; The first line receives all the arguments from the URL in @args. The second line assigns the first argument to a variable called word (or uses Default Word if there isn't a first argument). Finally, we put $word in the stash as word, so the [% word %] statement in our template can access that variable. The template that will be rendered is determined by the private name of your action.

8 is ported to Moose and the helper scripts for Catalyst were upgraded much later. Therefore, it is necessary for you to check if you have the latest helper scripts. We will discuss helper scripts later. pm) will have the following line: use Moose; If you don't see this line in your application package in the lib directory, then you will have to update the helper scripts. PL: This script generates a Makefile to build, test, and install your application. It can also contain a list of your application's CPAN dependencies and automatically install them.

We'll start with a skeleton similar to the application from the last chapter, but then we'll add some real logic to create a CRUD (create, retrieve, update, delete) interface to a database. We'll learn how to define forms that automatically generate and validate themselves and how to design a database schema. We'll also use a View that generates common pages for us, so we won't have to worry about stylesheets or tricky HTML for now. Environment setup Before we start writing our new application, we'll need to create a skeleton again.

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