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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.

Migrating cropped images

13th Mar 2023

One of our big Drupal 7 to Drupal 9 migration projects included bringing across image cropping functionality and data on a longstanding client's website. This site had used the Imagefield Crop module, but that was only for Drupal 7. We set up Image Widget Crop for the new site, which is better in a few ways but is also fundamentally different. The old site referenced the cropped images from content, only bringing in the originally-uploaded images for edit pages, to allow editors to adjust the cropping, which was then used wherever that image appeared on the frontend. But the new Image Widget Crop module allows configuring different crops for different situations.

The real challenge was in migrating the data! But we call ourselves Drupal experts, so of course we dug to find solutions. We found the following steps were necessary...

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Drupal 10 upgrade: Custom code upgrades

7th Mar 2023

This one is entirely on us, we wrote the custom code, which makes us responsible for maintaining it.

The upgrade status module gives us a nice report of each custom project and what changes it thinks are required to bring the code up to date to work with Drupal 10.

We really don't have a lot of custom module code, and the code that we do have is very simple, standard Drupal 8/9/10 stuff, so there are a couple of calls to taxonomy_term_load_multiple_by_name to remove, and an accessCheck to add to an entity query, but other than that our custom...

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Drupal 10 upgrade: File to media

2nd Mar 2023

We're continuing our series on upgrading this very website to Drupal 10...but our first proper bit of work to upgrade this site is essentially nothing to do with Drupal 10!

We built this site in the early days of Drupal 8 and Drupal core didn't really handle 'media' any differently to Drupal 7, but we wanted to try out some new modules that included having a library and drag&drop upload. However, these modules are an additional thing that we need to upgrade and have been pain in that sometimes the buttons don't appear, or they're buggy in other ways. Anyway...

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Drupal 10 upgrade: Defining the project scope

25th Feb 2023

Let's define the scope and goals of our project to upgrade this very website to Drupal 10.

Essentially, that's it: we want to upgrade this website to Drupal 10 so that we can benefit from security releases etc.
At the moment we want to do so with the minimum of effort, so I don't want to have to be writing lots and lots of code or changing fundamentally how the site works, but I am up for simplifying things if it gets us to a point where we have to maintain less code.

Since Drupal 9, major version upgrades now...

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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:

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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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