Setting up a Drupal 8 site for a multi-site environment with a common configuration isn't too hard, it just requires a little bit of forethought and some planning to get things right. You need to have a default configuration in mind, and then think about how each site can override this configuration in different ways. I have seen it done wrong a few times recently and once you go down the wrong path, getting things back in line again can be a difficult.
Drupal 8's comment system has the ability to be threaded so that users can reply directly to other users comments and create threads of conversation. I have always found this difficult to use and difficult to read so I wanted to turn it off when I set up this site. The only issue I had was I could turn off the threading but couldn't alter the ordering of the comments.
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.
For the past few months I have been organising an unconference event with †he other organisers of the North West Drupal User Group (NWDUG). An unconference is just like a normal conference, with the exception of the sessions. All of the sessions are selected on the day and then presented by the delegates. Thankfully, everything came together and on November the 4th at MadLab in Manchester we had 55 people show up for the day. Once we introduced the day and got some sessions on the wall we started out.
DrupalCamp London 2017 was held on the 4th and 5th of March at the newly refurbished main hall of City, University of London. The new facilities are really nice and keep the conference in the same area, but they aren't too small that it feels cramped.
The European DrupalCon was held in Dublin from 26th - 30th September and I went along with a couple of colleagues to learn a few things about Drupal. I have been back from the conference for a few days now, and I wanted to write down some of the highlights of the conference in a blog post. There is a lot going on at DrupalCon and with 2000+ people, 3 full days of sessions, 2 tutorial days, multiple parties and over 10,000 cups of coffee consumed there is too much to write about here.
I was recently asked to implement a feature on a Drupal site where all nodes of a certain type would redirect to a main listing page if that node had been unpublished. The problem in doing this is that if a post is unpublished then Drupal will issue an access denied response quite early on in the boot process. When the menu item is loaded it goes through an access callback which sees that the post is unpublished and issues an access denied before anything else can happen. So in this situation you can't use things like Rules to redirect users as the rule is never triggered.
DrupalCamp London, now in it's 4th year, was held of the weekend of the 4th, 5th and 6th of March at The University of London campus in London. Myself and a few other developers from Manchester headed down for the weekend to attend. I wasn't able to attend the CXO day on the 4th, but we were all in attendance for the camp event.
When overriding theme functions in Drupal 7 you would normally copy the theme function into the template.php and alter it to suit your needs. This isn't always convenient though, especially if you are trying to abstract functionality into modules and not have code in your theme layer that is reliant on module code. If you add theme override functions to your module files then they won't do anything as Drupal isn't looking for them there and won't pick them up.
Or, how you can render a Drupal page with an entirely different template.
I recently had a requirement where I needed to get Drupal to render a single page of HTML that was entirely separate from the normal page layout of a site. This was actually part of an API callback, but this got me involved in looking at how delivery callbacks work in Drupal 7. It isn't necessary to create a new theme just for the job of rendering a single page with some custom HTML, especially as Drupal has mechanisms to provide this built in.