book

Beginning Perl

by Curtis Ovid Poe

September 2012

Beginner

744 pages

15h 48m

English

Wrox

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Perl TodayGetting PerlThe Perl CommunityUsing perldocUsing a Terminal WindowCreating Hello, World!Summary
CPAN and METACPANCPAN ClientsSummary
What is Programming?A Few Things to Note Before Getting StartedScalarsArraysHashesSlicesContextScopeStrict, Warnings, and DiagnosticsPerl’s Built-in VariablesSummary
Using ScalarsArray and List FunctionsBuilt-in Hash FunctionsScoping KeywordsSummary
Using the if Statementfor/foreach loopsUsing while/until LoopsStatement Modifiersgiven/whenSummary
References 101Working with ReferencesSummary
Subroutine SyntaxReturning DataFAIL!Subroutine ReferencesPrototypesRecursionThings to Watch ForSummary

Basic MatchingAdvanced MatchingCommon Regular Expression IssuesSummary
Basic File HandlingDirectoriesUnicodeUseful ModulesSummary
Basic Sortingmap and grepPutting It All TogetherSummary
Namespaces and PackagesSubroutines in Other PackagesBEGIN, UNITCHECK, CHECK, INIT, and ENDPlain Old Documentation (POD)Creating and Installing ModulesSummary
What Are Objects? The Ævar the Personal ShopperThree Rules of Perl OOObjects – Another ViewA Brief RecapGotchasSummary
Understanding Basic Moose SyntaxAdvanced Moose SyntaxMoose Best PracticesSummary
Basic TestsUnderstanding Test::More Test FunctionsUsing Other Testing ModulesUnderstanding xUnit Style Using TestingSummary
A Brief Introduction to HTTPWeb ClientsSummary
Using the DBISelecting Basic DataSummary
The Command LineOther ProgramsSummary
Using CSV DataUnderstanding Basic XMLHandling DatesUnderstanding Your ProgramSummary
What Next?Understanding Object-Relational MappersUsing the Template ToolkitUsing Catalyst to Build AppsSummary

Content preview from Beginning Perl

Chapter 19 The Next Steps

WHAT YOU WILL LEARN IN THIS CHAPTER:

What this book covers... and what it leaves out
Using an DBIx::Class and other mappers to map relations
How to use the Template Toolkit
Building web applications with Catalyst

WROX.COM CODE DOWNLOAD FOR THIS CHAPTER

The wrox.com code downloads for this chapter are found at http://www.wrox.com/remtitle.cgi?isbn=1118013847 on the Download Code tab. The code for this chapter is divided into the following major examples:

lib/My/Schema.pm
lib/My/Schema/Result/License.pm
lib/My/Schema/Result/Media.pm
lib/My/Schema/Result/MediaType.pm
listing_19_1_dbic.pl
listing_19_2_letter.pl
templates/en/letter.tt2
templates/fr/letter.tt2

You’ve finally made it to the last chapter! (Be honest, you’ve skipped ahead and started reading this.) Chapters 1 through 11 gave you the skills you need to be an entry level Perl programmer (Chapter 17 helps there, too). Chapters 12 through 16 gave you the skills to take the next step in your Perl programming career. Chapter 18 covers a few skills that explain some common tasks you’ll encounter, and strong skills for understanding your code. This chapter introduces you to the skills that can take you to the next level.

WHAT NEXT?

It’s difficult to say that you truly understand a programming language until you understand the libraries for that language. Your author, for example, “knows” Java and has programmed in it from time to time, but he doesn’t actually know the common libraries for the language. ...