Cleaning up the save function

This screencast present little new information about writing Drupal modules, but shows some cleanup work for the Word list configuration page – allowing it to take care of unexpected data. Some Drupal specific topics included in this screencast:

• Using the t() function with replacements
• Using the Drupal equivalent of strlen (and other str functions)
• Seeing Coder react on bad code
• Discussion on where to add cleanup logic

code changes in wordlist.module function wordlist_save_list(array $words) { // Check if the list of words contain any empty strings, and remove them. $removed = 0; foreach ($words as $key => $word) { if (drupal_strlen($word) == 0) { unset($words[$key]); $removed++; } } // If any strings were removed, notify the user. if ($removed > 0) { drupal_set_message(t( 'Removed @number empty words.', array('@number' => $removed)) ); } // Store the words in the variables table. variable_set('wordlist_words', $words); }