Tech Insights

<p>Visual explanation why refactoring should be part of new features, not backlog: </p>

<p>A Few Django ORM Mistakes </p>

<p>Use <code>pip list --not-required</code> to see your main packages without dependencies.</p>

<p>React patterns, techniques, tips and tricks </p>

<p>Applications age like fish, data ages like wine: </p>

<p>django-lazysignup allows users to interact with a site as if they were authenticated users, but without signing up: Useful to increase conversion.</p>

<p>Avoid Django's GenericForeignKey: </p>

<p>Django has Conditional View Processing tools for conditional requests (ETag If-match, If-modified-since): </p>

<p>django-sudo is an app to force users re-insert their passwords before doing dangerous actions: </p>

<p>readthedocs.org code is written in Django and it's open-source: </p>

<p>Useful library for serving files with Django: </p>

<p>Pretty and useful exceptions in Python, automatically: </p>

<p>Add recurring dates in your project with django-recurrence: </p>

<p>On Django, be careful when doing consecutive <code>queryset.update()</code>s. Each one executes a new <code>UPDATE ... WHERE</code> SQL query. There are cases where the second update might not change anything because the first one changed the rows already. Always check the original <code>queryset</code> filters/excludes to see if they are affected by the updates.</p>

<p>Async calls, like requests, should be triggered from <code>componentDidMount</code> instead of <code>componentWillMount</code> </p>

<p>Getting to know CSS Grid Layout! #.6hu4c9tvt</p>

<p>Using django.js? Be careful with <code>JS_CACHE_DURATION</code> setting! It defaults to 24 hours. This means your updates on URLs will be delayed on 1 day to the frontend! We recommend setting <code>JS_CACHE_DURATION</code> to <code>0</code>. Even better, use instead.</p>

<p>Should I use Grid or Flexbox? </p>

<p>How broken practices become standard </p>

<p>Cool example project on how to use and test react-form components </p>

<p>CSS Grid landed in the latest versions of Firefox and Chrome without a feature flag! </p>

<p>Avoid unsemantic HTML! Linting HTML using CSS: </p>

<p>Interesting React playbook </p>

<p>Use drf-url-filters to apply filters on DRF querysets using query params: </p>