Download PDF by John K. VanDyk (auth.): Pro Drupal Development

By John K. VanDyk (auth.)

ISBN-10: 1430209895

ISBN-13: 9781430209898

ISBN-10: 1430209909

ISBN-13: 9781430209904

Widely praised for its in–depth assurance of Drupal internals, bestselling Pro Drupal Development has been up to date for Drupal 6 during this variation, and gives are much more methods of the exchange that can assist you additional your self as a certified Drupal developer.

Assuming you know the best way to set up and convey a customary install on-line, John okay. VanDyk promises every thing else you must customise your Drupal set up even if you notice healthy. Pro Drupal improvement, moment Edition delves deep into Drupal internals, displaying you the way to take complete good thing about its strong architecture.

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Htaccess files that secure the Drupal installation. Clean URLs—that s is, those devoid of question marks, ampersands, or other strange characters—are achieved using Apache’s mod_rewrite component. w3. org/Provider/Style/URI). Clean URLs are available on other web servers by using the web server’s URL rewriting capabilities. Drupal interfaces with the next layer of the stack (the database) through a lightweight database abstraction layer. This layer handles sanitation of SQL queries and makes it possible to use different vendors’ databases without refactoring your code.

So when the “Reset to defaults” button is clicked, Drupal deletes the current entry for the key annotate_limit_per_node from the variables table and uses the default value of 1. , annotate_limit_ per_node in the preceding example). Create the form element/variable key name from your module name plus a descriptive name, and use that name for both your form element and variable key. The “Annotations will be deleted” field is a little more complex, since it’s a radio button field. The #options for this field are the following: '#options' => array( t('Never'), t('Randomly'), t('After 30 days') ) When PHP gets an array with no keys, it implicitly inserts numeric keys, so internally the array is really as follows: '#options' => array( [0] => t('Never'), [1] => t('Randomly'), [2] => t('After 30 days') ) When we set the default value for this field, we use '#default_value' => variable_get('annotate_deletion', 0) // Default to Never which means, in effect, default to item 0 of the array, which is t('Never').

For convenience, save the node ID. $form['annotate']['nid'] = array( '#type' => 'value', '#value' => $node->nid, ); // Define a submit function. $form['annotate']['submit'] = array( '#type' => 'submit', '#value' => t('Update'), ); return $form; } The function takes two parameters. The first, $form_state, is passed automatically by Drupal to all form functions. We’ll ignore it for now; for details, see Chapter 10 where the form API is discussed in detail. The second parameter is the $node object that we passed into drupal_get_form() inside our nodeapi hook implementation previously.

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Pro Drupal Development by John K. VanDyk (auth.)

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