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I have written my custom module for Drupal 7. In my page_change.module file I have only:

<?php
    drupal_add_js(drupal_get_path('module', 'page_change') . '/page_change.js');
?>

In my page_change.js file I have only:

Drupal.behaviors.page_change = {
    attach: function (context) {
        console.log("text");
    }
};

As soon as I enable my module, Drupal doesn't load jquery.js. It does not even appear in html source in <head> section. When I disable my module, or delete the only line from page_change.module file everything works fine.

I have also tried to load my javascript file by adding

scripts[] = page_change.js

In my page_change.info file (and leaving page_change.module with only <?php ?>) but it doesn't seem to work either.

Why does that happen? What am I doing wrong? Am I missing something?

edit: I have even tried to add inline javascript by adding

drupal_add_js('console.log("text");', array('type' => 'inline', 'scope' => 'footer'));

and it writes text to console, but jquery.js is still missing.

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2 Answers

up vote 0 down vote

Your custom JS should be wrapped in:

(function($) {
  // custom Drupal behaviors here
})(jQuery);

Give that a shout.

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I do not use jQuery in my javascript. I've tried this, it doesn't help. Problem is that Drupal does not load jQuery when I add any javascript, not the javascript itself. Javascript works perfectly. –  Crazy Yoghurt Sep 12 at 17:32
up vote 0 down vote accepted

Ok, somehow I forced it to work, but I still have no idea why it hadn't work before.

I have changed my page_change.module contents to:

<?php
function page_change_preprocess_page(&$variables) {
    $file = drupal_get_path('module', 'page_change').'/page_change.js';
    $options = array(
      'weight' => 1000,
      'scope' => 'footer'
    );
    drupal_add_js($file, $options);
}
?>

then I disabled and enabled my module and miraculously it works.

If you have any idea why I had these problems, please post your answer.

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