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The articles on this page are ComputerMinds' contribution to the Planet Drupal aggregated article feed.  Planet Drupal is intended to collate interesting and useful Drupal content from around the web.

Drupal 10 upgrade: Introduction

22nd Feb 2023

On 14th December 2022 Drupal 10 was released. We can't say we immediately set about the task of upgrading all our Drupal 9 sites, but we did start thinking and planning to move all our sites in 2023.

I thought it might be fun to take a look at how we do an upgrade and specifically the upgrade of this very website.

So over the next few weeks we'll be slowly getting this site ready and as up to date as possible before making the jump up to Drupal 10.

We've got a few challenges ahead, this site was originally...

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Allow editors to use HTML attributes by default

26th Oct 2022

Drupal provides an excellent sanitisation system to filter the HTML content that editors might create. Think of it like a series of traffic cops that filter different vehicles into different lanes. Some content is allowed through to its destination, some has to be transformed along the way, and some is simply blocked from displaying. Administrators can use the 'Limit allowed HTML tags and correct faulty HTML' option to configure which HTML elements and attributes they can use. This helps protect a site against nefarious HTML - whether it might be malicious or just ugly. Under Drupal 9, editors can't use...

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PhpStorm coding tip for Drupal services

29th Jun 2022

Here's a super simple tip to help you work with services for Drupal in PhpStorm (our favourite IDE). First, ensure you have enabled the Drupal Symfony Bridge and Symfony Support plugins; they're brilliant for auto-complete suggestions, and navigating around services, controllers, annotations and twig templates! I find it so helpful to be able to cmd+click (or ctrl+click) on a service name, whether in a YAML definition, or PHP code, and jump straight to the service class. But I'd noticed that PhpStorm often didn't recognise the method used after my code referred to a service like this:

\Drupal::service('my_service')
  ->something($id);
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Get Hook-ed on Object-Oriented Programming

15th Sep 2021

Does writing hooks make you sad because the code is too procedural? Are you keen to use the object-oriented programming approach that Drupal and its service container enable, wherever you possibly can? Read on if you answered yes to any of those questions.

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Migrating Drupal 7 Files into Drupal 8 / 9 Media entities

27th Jul 2021

This article assumes a basic knowledge of the building of custom modules, the Drupal 8 / 9 Migration system, and the processes behind creating customised migrations from a previous version of Drupal.

One of the more common components of any migration from a previous version of Drupal is the need to migrate files. In Drupal 7 there was a core ‘File’ entity type and on pretty much all of our clients' sites we would also have the contributed module File Entity enabled. This extended the core file functionality and gave the ability to add fields to the file entity, have...

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Custom node routes

20th Jul 2021

Sometimes it can be handy to have extra pages for a node (or any entity). For example:

  • To show different sets of information on separate pages for a single product, page, or thing.
  • So you can set different access requirements on each page for a node.
  • You want to block access to the ordinary route (e.g. node/123 and its aliased equivalent) for some reason, but you still want some other page to represent that node.

I've found a few people with that need on Drupal slack before, so I thought I'd write a guide because it's surprisingly...

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Entity Extra Field module: display blocks & views amongst fields

14th Jun 2021

I'm a fan of configuring things for display through Drupal's admin UI. It gives site builders confidence and power. What if you want to place blocks or views listings in amongst fields on pages of content? For example, to display:

  • A listing (view) of related content, such as accessories for a product
  • A standard contact block, advert, or some other calls to action in the middle of the content, exactly where the user is best 'caught' in their journey, rather than having to stick those in sidebars or after all the content fields.
  • Some specific value(s) pulled from fields on some indirectly related entity, through a token, such as details from a taxonomy term representing the 'section' that a page is in.
  • Consistent relevant links on user profiles to take people to common destinations

This is where the Entity Extra Field module (entity_extra_field) comes in. It supports embedding blocks, views or values to be replaced via tokens. So a site builder can set these up to be managed just like ordinary fields on the page (whether it's a node, term, paragraph, or any other type of content).

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Context-aware blocks

9th Jun 2021

Defining your own Drupal block plugins in custom code is really powerful, but sometimes you can feel limited by what those blocks have access to. Your block class is like a blank canvas that you know you'll be pulling data into, but how should you get that data from the surrounding page? Often you have to resort to fetching the entity for the current page out of its route parameters (e.g. on a node page), in order to get the values out of its fields that you want to display. Plugins can actually have a context passed to them directly...

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ComputerMinds are diversifying

1st Apr 2021

The last year has highlighted to us all how important it is for the global community to come together and solve problems. We rate ourselves highly at ComputerMinds, and figure it's time to share and stretch our abilities to the full. So I'm here on this special day to announce that we are branching out beyond just resolving bugs on websites, to fixing any kind of bugs in any problem space. There's so much market potential, we're really quite excited at the possibilities for bringing innovative solutions to the world!

Medical bugs

The ugliest bug of them all, COVID-19, has...

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Apply Drupal 9 compatibility patches with Composer

12th Jan 2021

Update! Since this article was written, a new 'lenient' composer endpoint has been created on Drupal.org to support using modules with Drupal 9 that haven't been marked as compatible with it yet. See the documentation, which boils down to adding a new common entry under 'repositories' in your composer.json, above the usual https://packages.drupal.org/8 one. The rest of this article is still useful for understanding how patching fits into composer's workflow.

The vast majority of community-contributed Drupal 8 modules now have releases that are compatible with Drupal 9, but what can you do if you need to use a module that...

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