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Intermediate Perl

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Dave Cross
Dave Cross

Slides from Intermediate Perl course. November 2009.

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Intermediate Perl Dave Cross Magnum Solutions Ltd [email_address]
What We Will Cover ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What We Will Cover ,[object Object],[object Object],[object Object],[object Object],[object Object]
Schedule ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Resources ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Types of Variable
Types of Variable ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lexical Variables ,[object Object],[object Object],[object Object],[object Object],[object Object]
Lexical Variables ,[object Object],[object Object],[object Object]
Packages ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Package Variables ,[object Object],[object Object],[object Object],[object Object]
Package Variables ,[object Object],[object Object],[object Object]
Declaring Package Vars ,[object Object],[object Object],[object Object],[object Object]
Lexical or Package ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
local ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
local Example ,[object Object],[object Object],[object Object],[object Object],[object Object]
Strict and Warnings
Coding Safety Net ,[object Object],[object Object],[object Object],[object Object],[object Object]
use strict ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
use strict 'refs' ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
use strict 'refs' (cont) ,[object Object],[object Object],[object Object],[object Object],[object Object]
use strict 'subs' ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
use strict 'vars' ,[object Object],[object Object],[object Object],[object Object]
use warnings ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Allowing Warnings ,[object Object],[object Object],[object Object],[object Object],[object Object]
References
Introducing References ,[object Object],[object Object],[object Object],[object Object]
Creating References ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Creating References ,[object Object],[object Object],[object Object],[object Object]
Creating References ,[object Object],[object Object],[object Object]
Using Array References ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Using Hash References ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Using References ,[object Object],[object Object],[object Object]
Using References ,[object Object],[object Object],[object Object]
Why Use References? ,[object Object],[object Object]
Parameter Passing ,[object Object],[object Object]
Why Doesn't It Work? ,[object Object],[object Object],[object Object],[object Object],[object Object]
Another Attempt ,[object Object]
Complex Data Structures ,[object Object],[object Object],[object Object],[object Object],[object Object]
Complex Data Structures ,[object Object],[object Object],[object Object],[object Object],[object Object]
Complex Data Structures ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
More Data Structures ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
More Data Structures ,[object Object],[object Object]
Using an Array of Hashes ,[object Object]
Complex Data Structures ,[object Object],[object Object],[object Object],[object Object],[object Object]
Sorting
Sorting ,[object Object],[object Object],[object Object],[object Object]
Sort Order ,[object Object],[object Object],[object Object],[object Object],[object Object]
Sorting Blocks ,[object Object],[object Object],[object Object],[object Object],[object Object]
Sort Examples ,[object Object],[object Object],[object Object],[object Object]
Sorting Subroutines ,[object Object],[object Object]
Sorting Names ,[object Object],[object Object]
Sorting Names (cont) ,[object Object]
More Complex Sorts ,[object Object],[object Object],[object Object]
More Efficient Sorts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Put It All Together ,[object Object],[object Object],[object Object]
Schwartzian Transform ,[object Object],[object Object],[object Object]
Reusable Code
Why Write Modules? ,[object Object],[object Object],[object Object],[object Object]
Basic Module ,[object Object]
Using MyModule.pm ,[object Object]
Explaining MyModule.pm ,[object Object],[object Object],[object Object],[object Object],[object Object]
Packages Revisited ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Using Exporter ,[object Object],[object Object],[object Object],[object Object]
How Exporter Works ,[object Object],[object Object],[object Object],[object Object],[object Object]
Exporting Symbols ,[object Object],[object Object],[object Object],[object Object]
Exporting Symbol Sets ,[object Object],[object Object],[object Object],[object Object]
Why Use @EXPORT_OK? ,[object Object],[object Object],[object Object],[object Object]
Exporting Variables ,[object Object],[object Object],[object Object],[object Object]
Writing Modules The Easy Way ,[object Object],[object Object],[object Object],[object Object]
Object Orientation
OO Programming ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Object Oriented Perl ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
A Simple Object ,[object Object]
A Simple Object (cont) ,[object Object]
Using MyObject.pm ,[object Object]
Moose ,[object Object],[object Object],[object Object],[object Object]
Moose Example ,[object Object],[object Object]
Further Information ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Testing
Testing ,[object Object],[object Object],[object Object],[object Object],[object Object]
When to Run Tests ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Testing in Perl ,[object Object],[object Object],[object Object],[object Object]
Simple Test Program ,[object Object]
Simple Test Output ,[object Object]
Adding Test Names ,[object Object]
Output With Names ,[object Object]
Using prove ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Test Anything Protocol ,[object Object],[object Object],[object Object],[object Object]
TAP Output ,[object Object],[object Object],[object Object],[object Object]
More Testing Modules ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
More Information ,[object Object],[object Object],[object Object],[object Object],[object Object]
Dates and Times
Dates & Times ,[object Object],[object Object],[object Object],[object Object],[object Object]
Dates & Times on CPAN ,[object Object],[object Object],[object Object],[object Object],[object Object]
Perl DateTime Project ,[object Object],[object Object],[object Object],[object Object]
Using DateTime ,[object Object]
Using DateTime ,[object Object]
Arithmetic ,[object Object],[object Object],[object Object]
Arithmetic ,[object Object]
Formatting Output ,[object Object],[object Object]
Parsing & Formatting ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Alternative Calendars ,[object Object],[object Object],[object Object],[object Object],[object Object]
Calendar Examples ,[object Object],[object Object]
Templates
Templates ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Non-Web Templates ,[object Object],[object Object],[object Object],[object Object],[object Object]
DIY Templating ,[object Object],[object Object],[object Object]
DIY Templating ,[object Object],[object Object]
Templating Options ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Template Toolkit ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Good Book Too!
The Template Equation ,[object Object],[object Object],[object Object],[object Object]
Simple TT Example ,[object Object]
html.tt ,[object Object]
text.tt ,[object Object]
Adding New Formats ,[object Object],[object Object],[object Object]
Equation Revisited ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Databases
Databases ,[object Object],[object Object],[object Object],[object Object],[object Object]
How DBI Works ,[object Object],[object Object],[object Object],[object Object],[object Object]
Connecting to a DB ,[object Object],[object Object],[object Object],[object Object],[object Object]
Selecting Data ,[object Object],[object Object],[object Object],[object Object]
Selecting Data (cont) ,[object Object],[object Object],[object Object]
Selecting Data (cont) ,[object Object],[object Object],[object Object]
Other Select Functions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Some Caveats ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Insert, Update & Delete ,[object Object],[object Object],[object Object],[object Object]
Multiple Insertions ,[object Object],[object Object],[object Object]
Binding Data ,[object Object],[object Object],[object Object]
Binding Data (cont) ,[object Object],[object Object]
Unnamed Placeholders ,[object Object],[object Object],[object Object],[object Object]
Bind By Name ,[object Object]
Even Easier Binding ,[object Object],[object Object]
Downsides ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Some Tips ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Sample Code ,[object Object]
Not Writing SQL ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Object Relational Mapping ,[object Object],[object Object],[object Object],[object Object],[object Object]
Replacing SQL ,[object Object],[object Object],[object Object]
Replacing SQL ,[object Object],[object Object],[object Object]
ORM on CPAN ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Further Information ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
That's All Folks ,[object Object]

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Intermediate Perl