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Download A Programmer's Guide to Drupal by Jennifer Hodgdon PDF

By Jennifer Hodgdon

If you’re an internet programmer new to Drupal, this booklet indicates you which of them programming suggestions you could use—and that you may still avoid—when construction customized internet purposes with this content material administration framework. Drupal has its personal set of programming ideas that require a special technique, and plenty of programmers make blunders while hoping on talents they’ve used for different tasks. the ideas during this e-book assist you in the course of the transition through demonstrating which programming practices comply with the “Drupal way,” and which don’t.

If you’re conversant in Hypertext Preprocessor, you’ll fast find out how to reap the benefits of the strong Drupal API.
* Get an entire review of Drupal, together with Drupal center and add-on modules and topics
* examine Drupal’s uncomplicated programming ideas, corresponding to the facility to customise habit and output with hooks
* observe universal Drupal programming mistakes—and why hacking is one in all them
* discover particular parts the place you could placed your programming talents to paintings
* study programming assistance and instruments that can assist you ideal and debug your functions

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Additional resources for A Programmer's Guide to Drupal

Example text

This consists of the following components: • When you are defining a form array, each form element can be given a Boolean '#access' property—TRUE means the form element is displayed and usable, and FALSE means it is not accessible to the current user. When you are building a form, you can assign the result of a user_access() call to the '#access' property of an element, to programmatically show/hide form elements. • Assuming that you use the standard Drupal form functions to display and process the form, Drupal will protect against cross-site forgery form submissions by adding a unique token to the form and validating the token when the form is submitted.

Module file function mymodule_permission() { return array( // The array keys are the permissions' internal names. 'administer mymodule' => array( 'title' => t('Administer My Module settings'), // Human-readable name. '), ), // Define additional permissions by adding more array elements. ); } • In the Drupal user interface, site administrators can define roles, and grant one or more permissions to each role. A user account can then be assigned to one or more roles, which grants all of the roles’ permissions to that user account.

Principle: Drupal Code Is Tested and Documented | 31 A related effort in the Drupal project has been to improve the documentation of the code in Drupal core. The project has standards for in-code documentation, which in‐ clude the idea that each function, class, file, and constant should include a documen‐ tation header (these documentation headers are parsed to create the Drupal API refer‐ ence site). Most of the Drupal 7 code is reasonably well documented, and for the Drupal 8 development cycle, a standard was adopted to say that no change should be committed without its accompanying documentation being complete.

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