Welcome to Enzed Online!

What does a Kyrgyz glacier have to do with an IT consultancy? Not a lot, but it does highlight one of the fundamental keys of engagement in web design: to pique curiosity on landing on your site to encourage reading on, you've generally got a couple of seconds to do that before the visitor's attention span runs out and they move on to the next attention grabber. Mostly though, it's there because Kyrgyzstan has some of the best and most undeveloped hiking I've ever come across. If you have a chance, go!

This website was created using Python, Django, and Wagtail CMS. On the tech blog, I'll be sharing plenty of experiences, pitfalls, and tips for anyone who might find this beneficial.

About me: I have 23 years of experience in IT across a broad range of industries and roles, mostly as a contractor and consultant, ultimately as head of IT for a leading international tourism company in New Zealand. In between, I love to travel, hike and photograph (the three happily go together), as well as experiment with different cuisines from around the world.

These days, you'll find me in the countryside close to Wellington. If you're an employer looking to fill a position in your team that you believe I'd be a good fit for, either on a project basis or on a more permanent basis, please visit my About page or contact me directly here. I have rights to work in New Zealand, the UK, Spain and Australia, and would be happy to consider other locations as well.

Tech Blog

Here, I'll be sharing insights from my professional experiences, studies in data science and web development, and explanations of how this site was built for anyone interested in learning.

Personal Blog

If technology isn't your thing, check out my other major passions: travel, hiking, photography, and world cuisine. I like to combine as many of these as I can whenever I get the opportunity ...

Latest Blog Posts


Wagtail Streamfields - Propagating the required Attribute on Nested Blocks

Wagtail Streamfields - Propagating the required Attribute on Nested Blocks

When adding blocks to a custom Wagtail StreamField StructBlock, whether or not those blocks are required may depend on the required status set in the StructBlock constructor kwargs.

Unlike Django form fields however, in Wagtail's Block class (from which all blocks derive), the required attribute is a read-only property. This means it can only be set in the class declaration rather than during instantiation.

This article presents a straightforward workaround, eliminating the necessity for extensive validation code in each affected block.
2024-02-20 05:09:11 UTC
Efficient Cascading Choices in Wagtail Admin: A Smart Chooser Panel Solution

Efficient Cascading Choices in Wagtail Admin: A Smart Chooser Panel Solution

In the Wagtail admin interface, handling cascading or dependent selections can be a challenge due to the absence of active controls. This tutorial unveils a practical solution by guiding you through the creation of a custom 'chooser' panel. This panel not only elegantly displays dependent elements grouped by their parent element, focusing on categories and subcategories, but also incorporates an intuitive partial match filter for swift and efficient selections.

Learn how to implement this custom chooser panel, providing a one-click method to effortlessly manage cascading selections, enhancing your Wagtail experience.
2024-01-27 00:39:51 UTC
Protecting Your Django Forms: Implementing Google reCAPTCHA V3 for Enhanced Security

Protecting Your Django Forms: Implementing Google reCAPTCHA V3 for Enhanced Security

Learn how to fortify your Django and Wagtail forms against spam and bots using Google reCAPTCHA V3. Discover seamless integration methods, explore the hCAPTCHA alternative, and enhance user experience while maintaining robust security.
2023-12-19 03:10:24 UTC
Crafting a Bootstrap Navbar: How to Create Sticky Items for Persistent Visibility in Collapsed Mode

Crafting a Bootstrap Navbar: How to Create Sticky Items for Persistent Visibility in Collapsed Mode

Explore the art of designing a Bootstrap navbar that goes beyond conventional boundaries. In this guide, discover the secrets to creating sticky items that remain visible even in collapsed mode. Elevate your web design with seamless navigation that ensures key elements are always at your users' fingertips.
2023-12-15 00:49:09 UTC
Unlocking Enhanced Navigation with Bootstrap: A Guide to Submenus in Dropdown Menus

Unlocking Enhanced Navigation with Bootstrap: A Guide to Submenus in Dropdown Menus

Bootstrap has a notable feature gap: it doesn't provide a native component for nesting dropdown buttons. In this article, we'll delve into the art of crafting submenus within Bootstrap dropdown menus. You'll gain insights into seamlessly incorporating them into navbar dropdown menus, handling both collapsed and expanded views. Elevate your web navigation with Bootstrap submenus!
2023-09-26 05:21:53 UTC
Creating Custom Django Form Widgets with Responsive Front-End Behaviour

Creating Custom Django Form Widgets with Responsive Front-End Behaviour

This article will take you through the process of creating custom Django form widgets with responsive front-end behaviour. Create a custom Django template and learn how augment an existing widget with additional HTML and embedded JavaScript. For Wagtail users, learn how to seamlessly integrate your custom widget into FieldPanels and StructBlocks.
2023-09-16 03:51:11 UTC
Creating Wagtail Streamfield StructBlocks with a Customised Editor Interface

Creating Wagtail Streamfield StructBlocks with a Customised Editor Interface

This article will take you through the process of creating custom Wagtail Streamfield StructBlocks. You will learn how to customize the editing interface with CSS and JavaScript to achieve responsive front-end behaviour.

I'll demonstrate the creation of a StructBlockAdapter and the registration of JavaScript using Telepath. Additionally, I'll give a real-world example, showing how to include a custom StructBlock as a component of a parent StructBlock.
2023-07-10 06:19:58 UTC
Importing Text From File Into a textarea HTML Form Field

Importing Text From File Into a textarea HTML Form Field

This article covers how to add the ability to read the contents of a text file into a textarea form field from the front end without need to upload anything to the server. We'll go through adding a file input button with file type filter, enabling drag/drop and setting up the necessary JavaScript to handle both events.

We'll tie this together by creating a custom FieldPanel in Wagtail's CMS and add some CSS to tidy things up.
2023-05-23 10:20:50 UTC
Wagtail - Creating Custom Choosers with Viewsets

Wagtail - Creating Custom Choosers with Viewsets

Wagtail has a number of basic views for common activities like generating / modifying model instances and chooser modals. Because these frequently involve several related views with shared properties, Wagtail also implements the concept of a viewset, which allows a group of views to be defined and their URLs to be registered with the admin app as a single operation.

This article demonstrates how to create a custom chooser modal for the User model and add responsive filtering to search for records based on a defined set of columns.
2023-04-18 11:23:46 UTC
Add Unaccent Support in PostgreSQL Search

Add Unaccent Support in PostgreSQL Search

PostgreSQL has a some pretty useful NLP search capabilities out of the box. However, PostgreSQL search backends will only load the character set native to the language you've set your backend to use. Accented words on an English site won't be searchable with unaccented terms for example.

I show a quick way to load the full extended character set into a custom backend and take you through how to verify that the search is indexing and returning results as desired from the command prompt. Finally, I'll use the custom backend for my Wagtail site search to return pages with unaccented queries.
2023-01-08 00:01:22 UTC
Wagtail: Extending the Draftail Editor Part 4 - Custom Lists

Wagtail: Extending the Draftail Editor Part 4 - Custom Lists

The fourth part of this series looks at creating custom lists in Draftail, including the limitations considering this is not currently a supported feature in the editor.

I'll show how to create custom list styles within those limitations, and also how you can use a custom list to apply styling around a group of consecutive blocks of the same type.
2022-12-29 19:06:17 UTC
Configuring a Dynamic Sitemap on Wagtail

Configuring a Dynamic Sitemap on Wagtail

A sitemap lists a website’s most important pages, making sure search engines can find and crawl them. It's important to keep your sitemap up to date for optimal SEO.

With a quick bit of coding, you can set your sitemap to be created dynamically on demand, ensuring it always reflects the latest content.

We'll go through adjusting the lastmod field, and add values for the changefreq and priority on site, class or page level.

I'll show you how to add support for xhtml alternate entries for multi-lingual sites using a custom view in place of the built-in Wagtail sitemap app.

Finally, I add a method to notify Google of updates automatically on page publish/delete.
2022-12-22 18:25:06 UTC