Whenever your custom code outputs a render array, you need to use the #cache property to define the cacheability of the content. This includes providing information about any related context that informs Drupal about how the content varies, and tags that help Drupal know what circumstances might require the cached data to be invalidated. We can add #cache properties to the render arrays output by both the custom block, and the weather page controller, to ensure they are properly cached.
In this tutorial, we'll:
- Learn how to use the
#cacheproperty of a render array to provide cacheability data to Drupal. - Provide context about the data that's being displayed.
- Tell Drupal about any dependencies of the content.
By the end of this tutorial you should be able to use the #cache property to define the cacheability of the content contained in a render array.
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?