Download Catalyst - Accelerating Perl Web Application Development by Jonathan Rockway PDF

By Jonathan Rockway

Книга Catalyst - Accelerating Perl internet program improvement Catalyst - Accelerating Perl net software improvement Книги net дизайн/разработка Автор: Jonathan Rockway Год издания: 2007 Формат: pdf Издат.:Packt Publishing Страниц: two hundred Размер: three ISBN: 1847190952 Язык: Русский0 (голосов: zero) Оценка:Книгао хорошем веб-фреймворке написанном на Perl.

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As an example, /hello/foo/bar would put foo and bar in $args[0] and $args[1], respectively, and then call the action matching /hello. Next, let's test the application and make sure everything works so far. Save Hello. pl /hello/test. pl will print out some debugging information and then print "Matched MyApp::Controller::Hello in Hello" to the browser. If something else happens, make sure that you typed in your code correctly (a final listing to check against what appears at the end of this section).

To bulk up our database so that searching is more meaningful, we'll write a script to import CSV files into the address book. We will also add sessions to our application, so that data can persist between requests. Finally, we'll explore authentication and authorization by implementing page-level and record-level access control. Configuration Files The first new feature we'll add to our address book is the ability to be configured from an outside configuration file. This will allow us to easily change configurable aspects of our application without having to touch any of the application code.

Then, we add a message to the stash, and forward it to the list page (so the user can edit another person and see the new person along with the existing people). If the form hasn't been submitted yet, or the data's not valid, we transfer the firstname and lastname from the database to the form and let FormBuilder display the form (again). Although we transfer the database information to the form each time, the submitted form data will override the database data. This can be prevented by passing the force => 1 option to $c->form->field, in which case the database data will override the form data.

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