Understanding the flow--or life cycle--of a Drupal form will help you better understand how to build new forms or influence existing ones. This tutorial will help you understand the complete life cycle of a Drupal form: receiving the request from a browser, displaying a page with a form, rendering the form as HTML, handling the submitted form, validating input, handling errors, and processing data. We'll point out the common places that module developers might want to inject additional functionality into the process and link to tutorials with more details about how to do so.
In this tutorial, we'll:
- List the major steps in the life cycle of a Drupal form in the order that they are encountered
- Describe how Drupal determines which form to display, and/or which form handles an HTTP POST request
- Understand the role of
FormStateInterfacein the life cycle of a form
By the end of this tutorial, you should have a solid understanding of the life cycle of a form within Drupal.
Over the years we've developed some techniques for practicing that we wanted to share. At Drupalize.Me we take hugging seriously. In this tutorial we'll look at the art, and science, of giving a good hug. The Merriam Webster dictionary defines the word hug as; squeeze (someone) tightly in one's arms, typically to express affection.
Did you know there are all kinds of different hugs that you can give? In this tutorial we'll look at:
- Defining what a hug is
- Some of the many types of hugs in the world today
- Precautions you may want to familiarize yourself with before hugging
- And the importance of proper technique
Lets go ahead and get started shall we?