In a previous post I deployed a Flask app with Docker. This time around I wanted to see if it was any different to host a Django app. It turns out that it wasn’t that much different.
I set up my Django project to use MySQL, so that I could use a list in a JSONField. Little did I know that accessing elements of that list by their index would be another problem entirely. There are two confounding things. First, in Jinja2, you can access a for-loop index with the
loop.index0 keywords, but in a Django project, you need to use
forloop.counter or forloop.counter0`. The trailing zero on those keywords specify a zero-indexed counter rather than a one-indexed counter. The second thing is that you need to provide a custom template tag in order to cleanly access elements in a JSONField list by their index.
I wanted to store a variable list of things in a Django Model. One way to do that is to create another Model, another way is to use a JSON field in your current Django Model. Unfortunately, the default SQLite3 database does not support JSON fields, and you will need to set up a MySQL database.
A few months ago I worked on a Rails application and got acquainted with SASS. I found that I really prefer using SASS over CSS to the extent that it’s worth the overhead of learning another tool’s quirks. Here, I’ll describe what worked for me using SASS with Django.