Drupal 8 Theming - Part 02 - Disable Cache, Enable Twig Debug

In this episode of Drupal 8 Theming we are going to learn how to disable Drupal 8 cache and enable Twig debug mode so that we can develop our theme without having to clear the cache all the time.

This all sounds very simple but as you will see in this video it's actually very convoluted if you want to do it the right way.

I will show you how to disable cache for Drupal 8 in your development environment so that you can easily disable it once the site goes live. Because of course you want all of that cache goodness for your production environment as it will make your site much faster.

You will also learn how to enable twig debug - one of the Drupal 8 killer features that will help us develop our theme by giving us helpful information about our templates, suggest template names and show us what information from the system we have available on the current page. All good stuff.

[krishnashakya]

For those who are struggling for configuring caching for Drupal 8.4.4
- Just copy the example.settings.local.php which is located outside of the files folder into files folder with settings.local.php
- uncomment = 'cache.backend.null';
- Again, uncomment = 'cache.backend.null';
It will work perfectly fine wether you are logged on or logged off

[lutherkarper]

This is a thousand times better than any other free tutorials that I've come across! Thank you!

[parijke]

One of the best tutorials.... clear to the point and covers things that others doesnt. I am a fan already

[amareshdhanavantri]

One of the best tutorials for Drupal theming

[jeremyantoine]

Ivan, this is fantastic! I have already done 3 other "Theming with Drupal 8" tutorials, and they basically all ended where your second video ends. I am extremely happy to see that you have so much more content to go. I am Brand-new to Drupal and you have turned a nightmare of finding adequate help in Drupal 8 theming, into a dream!!!! Thank you!

[phamthuan]

I'm a Drupal beginner and your tutorials is very clear for me. Thanks a lot :)

[alexisteo]

Sorry for the previous comment that I found the folder.
Your video is the best step-by-step so far. And I love how to put them in order and meanwhile you explained the why.(I love it.) Thank you so much for your great work.

[billk]

I can't believe you have to do all this just to disable caching. Drupal really making a great case for using Wordpress.

[carlosapariciodesan]

Thank you very much for your tutorials about Drupal 8. I've been working with previous versions, but Drupal 8 has a lot of new concepts and techniques, you explain perfectly and didactically!
Keep on going! :)

[vinaykumarg]

Awesome man !!
I really appreciate your efforts of research for the video, I was annoyed by this problem of clearing cache every tym, finally found the solution, keep up the good work :)

[HarryPujols]

Unbelievable that you have to go through so many hurdles to have a developer-ready environment to work in Drupal 8.

[Kaneda]

If you are using Lando. You have to do Lando rebuild after you changed all the settings. /core/rebuild.php doesn't work.

[JatinBhatti]

hello Ivan, you helps me alot to understand the drupal 8 theming structure
Thank you
All the best. :)

[sbarmiueenl]

This is extremely useful. Thank you so much for sharing

[AndriLindbergs]

Brilliant! Following this video saved me a few hours of searching the web. Thanks.
Very well done! I'm a fan already :)

[djwave]

In drupal8.5 it all seems a lot easier. By just copying the default.services.yml to services.yml and turn on the twig:debug, the auto reload is automatically turned on. So that saves going through all the steps explained in this video. Thank goodness, because it is a great video but a hassle for all these steps.

[jorgemontoyab]

This is really great stuff! Thank you for the concise explanation.

[bazaloo]

Thanks Ivan. Loving these videos! The disable of the cache only works when I'm logged in as admin. Whenever I log out and make changes to page.html.twig then refresh the page, the changes aren't reflected. You're video demonstrates the same thing so I think I'm on the right track but shouldn't it work all the time, whether or not I'm logged in?

[stephanegillot]

Thank you so much. Best theming tuto. keep up the good work !

[dejanprogtrens]

best tutorials for drupal8 theming, tnx man :) also have 2 question . First can you give me direction how i can make website layout from given wireframe (will be my first project so dont know where to start). And second which sublime theme are u using :) its awesome