A Programmer's Guide to Drupal - download pdf or read online

By Jennifer Hodgdon

ISBN-10: 1449343317

ISBN-13: 9781449343316

If you’re an online programmer new to Drupal, this e-book exhibits you which of them programming ideas you could use—and that you should still avoid—when development customized net functions with this content material administration framework. Drupal has its personal set of programming ideas that require a distinct method, and plenty of programmers make error whilst counting on talents they’ve used for different initiatives. the ideas during this ebook assist you in the course of the transition by way of demonstrating which programming practices comply with the “Drupal way,” and which don’t.

If you’re conversant in Hypertext Preprocessor, you’ll fast easy methods to make the most of the strong Drupal API.
* Get an entire assessment of Drupal, together with Drupal middle and add-on modules and subject matters
* research Drupal’s uncomplicated programming ideas, akin to the facility to customise habit and output with hooks
* realize universal Drupal programming mistakes—and why hacking is one in all them
* discover particular parts the place you could placed your programming abilities to paintings
* examine programming guidance and instruments that will help you excellent and debug your functions

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Extra resources for A Programmer's Guide to Drupal

Sample text

Luckily, modules that define complex content permissions have APIs that make obeying the permissions feasible, without knowing the details of the permissions that are in place on a particular site. ) and the node content item you are operating on. And if you are writing a module that queries the database to make a node content item listing, such as a block that lists content satisfying some criteria, you need to add the node_access tag to your database query. This will ensure that only items the user has permission to view are returned by the query, without having to guess at what particular permissions modules might be in use.

When adding an administrative page for your module, put it in an appropriate section of the existing administrative user interface hierarchy of Drupal core, so people can find it easily. • Test your user interfaces and theme for accessibility. • Make sure that all information you present is available in text format (not just in images or diagrams), so screen reader users can access it. Search engines also only index text information, so making your site accessible in this way will also help its visibility in search engines.

The Notifications module can also be useful—it lets users subscribe to content updates on a site. Site navigation Novice Drupal programmers sometimes want to hardcode site navigation into their theme templates, because they have used this approach to ensure uniform naviga‐ tion on custom-built PHP/MySQL or pure HTML sites in the past. While this is certainly possible, it’s much better to use the core Menu module to manage site navigation. , and use CSS to style them ap‐ propriately. Drupal will automatically omit navigation items that are not accessible to whoever is viewing the site, and you will be able to manage the menus in the administrative user interface.

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A Programmer's Guide to Drupal by Jennifer Hodgdon


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