Learnings

<p>Easily build flexible frontend filters with django-find: </p>

<p>django-partial-index allows you to set partial/conditional indexes and partial unique constraints, which are useful for ensuring data integrity according to your business logic: </p>

<p>For you pass an HTML string to a Django Template you have to turn autoescape off </p>

<p>Using Django REST Framework to build your APIs and getting confused between javascript's camelCase and the API's snake_case pattern while developing your front-end client? converts your snake_case attributes to camelCase when using JSON format</p>

<p>Django Subquery + Count: </p>

<p>Django Pro-Tip – Slugs as primary keys: </p>

<p>If you want to add a unique non-nullable field to a table with existent rows, you'll need to a few extra steps because <strong>Django generates the value to populate existent rows only once</strong>. For the extra steps, check these instructions in #migrations-that-add-unique-fields</p>

<p>Subtests are the Best </p>

<p>How to use Google Social Login with Django </p>

<p>django-perf-rec is like Django's <code>assertNumQueries</code> on steroids! </p>

<p>Besides causing unexpected performance problems, a model default ordering in Django can cause problems to <code>values()</code>. Avoid default ordering! #interaction-with-default-ordering-or-order-by</p>

<p>Effective TDD: Tricks to speed up Django tests (up to 10x faster!) </p>

<p>A beginner’s guide to database locking and the lost update phenomena (examples in Hibernate, but relevant to Django!): </p>

<p>Modifying request session on tests </p>

<p>Easy way to generate class diagrams pictures in a Django project from console: </p>

<p>Django transaction.atomic is not a lock! </p>

<p>how to test Django migrations </p>

<p>On Django, you should NOT use <code>loaddata</code> management command directly in a data migration. It will use the current model state, not the historical one, therefore your migration will certainly BREAK in the future: </p>

<p>How to use custom user models </p>

<p>Django <code>Coalesce</code> implementation doesn't consider empty string as a null value, so if one desires to consider it null when coalescing fields one should use Conditional Expressions to achieve the desired result </p>

<p>I learned how to implement a form using DetailView through a FormMixin! This is a good material for beginners who are learning how to work with Class Based Views and need to implement a form. </p>

<p>Be aware when using <code>annotate</code> with <code>values</code>/<code>values_list</code> on Django because order matters #order-of-annotate-and-values-clauses</p>

<p>Django testing for beginners </p>

<p>This is a good link for people who are starting out with Django and want to learn about Class Based Views </p>