current community

more stack exchange communities

Stack Exchange
tour help
Take the 2-minute tour ×
Drupal Answers is a question and answer site for Drupal developers and administrators. It's 100% free, no registration required.
up vote 0 down vote favorite

I am trying to send a value in JavaScript variable to Drupal. I am calling an external js file in hook_nodeapi(). I want to send a value from this external js file to Drupal, and want to use this value in Drupal in hook_block.
For example

hook_nodeapi() {
  // call(external.js)
}
external.js
var sendData =10;

hook_block
{
  case view:
  // need to access sendData value
}

I tried this using cookies, but I think that is not the best way. How can this be done?

share|improve this question
1  
take a look at drupal.org/node/305747 –  austin Dec 27 '12 at 16:12
add comment

3 Answers

up vote 0 down vote

Let's look at what the client can do as an alternative to setting a cookie:

  1. Make an AJAX request that lets the server store the variable.
  2. Add the variable name and value to the query string of every internal link and to every form submission (not just the next one).

I do not see any benefits of Solution 1, that justifies the extra HTTP request. Especially, you cannot circumvent the necessity for the user to have Cookies enabled, because the value must be stored close to the user and Drupal uses Cookies exclusively to determine the session (and thus the user).

Solution 2 allows for different values within the same session. If this is not one of your requirements, I consider this solution too much of a hassle.

share|improve this answer
 
Nice analysis. But your conclusion is flawed: Adding a query parameter to all links and form-submissions is a lot more complex: What about other AJAX-requests? What about the time it takes the browser to walk through all links? … All in all the first option seems to be less complex, more reliable. The JavaScript wants to tell the server something so it should do it right away. –  zwirbeltier Jul 28 '12 at 13:43
 
I know solution 2 is complicated. That's why I did not endorse it. When I say "benefits of solution 1", I mean benefits compared to settings a cookie. –  Oswald Jul 28 '12 at 15:10
 
Ok sorry for the misunderstanding. –  zwirbeltier Jul 29 '12 at 12:17
add comment
up vote 0 down vote

You can check below code to get base path value from js variable.

$settings = drupal_add_js(null, null);

$base_path = $settings['settings']['data'][0]['basePath'];

drupal_add_js() function will return the array of the javascript varaible. You can trace the array in php and can get the value of required variable.

share|improve this answer
add comment
up vote -3 down vote

You can make use of drupal_add_js

drupal_add_js(array('myModule' => array('key' => 'value')), 'setting');

Add settings ('setting'): Adds settings to Drupal's global storage of JavaScript settings. Per-page settings are required by some modules to function properly. All settings will be accessible at Drupal.settings.

share|improve this answer
2  
This sends a value from the server to the client. yashbinani wants to send a value from the client to the server. –  Oswald Jun 13 '12 at 23:34
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.