Drupal Technical

Drupal depends on a cron system to execute period tasks in Drupal. This cron system in turn expects a call to the cron.php file from a client either as a Drupal shell request or as an http request to the Drupal site. The following outlines how to set up a cron job in an Amazon AWS server set up using the bitnami stack.

Some times we need to protect our site from public users and make it available only to selected number of users. For examply you might want to protect your alpha site from the public and from search engine bots. In such situations we protect our site with HTTP password. Follow the below steps for protecting your Drupal site with HTTP password. This was written for an Amazon AWS server but should work on most GNU/Linux servers.

When developing a website we might often come across situations where we have to limit the entry into each text fields to a certain type. One of the common scenarios we run into when developing Drupal websites is to limit text fields to accept only numbers as its input. If you want to know how to limit a text field to accept only numbers as input then read on to find out more.

In one of my recent Drupal projects I needed to add some extra classes to the body tag. Usually classes are added to the body tag in one of our template file namely html.tpl.php. The classes can be added via an implementation of hook_preprocess_html. Now let's see how it can be done.

If you are a Drupal Developer you will often encounter situations where you have to use the node_save() function to add a new node to your Drupal site. Drupal does not need you to specify the nid in the standard node object. However there will be situations where you need the nid of the saved node for performing additional operations. If you are looking to know how to get the nid from a newly added node using node_save() then read on.