Drupal 8

Creating A Language Cascade In Drupal 8

From the pages of 'crazy things you can do with Drupal 8' comes this idea that I recently had to implement on a site. This was on a site that had implemented translations, but they needed something a little extra. The central idea was that if you visited a page on the site in a particular language, and that language didn't exist, then to try and give the user a similar language.

philipnorton42 Thu, 03/14/2019 - 14:52

Drupal 8 Messenger Service

For a long time the drupal_set_message() function has been a mainstay of Drupal development. You can use this function to print a message or an error response to a user. This is useful to do as it can be done almost anywhere before the final page rendering functions and will be printed into the same area of a Drupal page.

philipnorton42 Thu, 02/07/2019 - 14:22

Creating hook_init In Drupal 8

When developing sites in Drupal 7 I found the hook_init() hook was a good way of quickly testing certain things in code. By adding little blocks of code it was possible to build complex SQL queries, inspect internal configuration, or even test complex node interactions.

philipnorton42 Sun, 09/23/2018 - 20:39

Drupal 8: Poking A Hole In The Shield Module

The Shield module prevents access to a Drupal site by putting a Apache authentication system across the entire website. This means that to access the site you need a username and password.

This is useful in a number of different situations, but I use it most for protecting dev and staging sites from access. It's not the most complex authentication system in the world, but it's enough to prevent the embarrassment caused by having staging sites being spidered by search engines.

philipnorton42 Sat, 08/25/2018 - 16:44

Drupal 8 : How To Avoid Block Caching

I was struggling with a problem on a Drupal 8 project that was in development recently where a block used to show information to anonymous users was cached for the first user who saw it. This meant that the special message meant for the first user was then being seen by all subsequent users who visited that page. This only happened when page caching was turned on, but as it's best practice to do that I didn't want to turn that off just to solve one little problem.

Drupal 8: Detecting An Anonymous User

To find out if the current user is anonymous use the following.

\Drupal::currentUser()->isAnonymous();

This can be used as part of an if statement like this:

philipnorton42 Tue, 06/28/2016 - 09:38

Drupal 8: Get The Current Language

To get the currently selected language on a Drupal 8 site you need to run the following.

$language = \Drupal::languageManager()->getCurrentLanguage()->getId();

This will return the 2 character ISO language code for the language. So for English this would be "en".

To get the language name instead of the language code use this.

$language = \Drupal::languageManager()->getCurrentLanguage()->getName();

Drupal 8: Include A Twig Template

When creating re-usable theme templates in Drupal 8 it's quite easy to include that template by using the following snippet.

{% include directory ~ '/templates/parts/footer.html.twig' %}

This assumes that your footer.html.twig template file is kept in the same theme as the template you are working on. It's also good practice to add the template part to a directory called 'parts' or 'components' to separate them from the normal Drupal templates.

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