November 2015
Beginner to intermediate
840 pages
26h 30m
English
Content preview from Django Unleashed
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26.3.6 Using Migrations to Learn about Optimization
We could now jump into our views and begin optimizing our webpages there. Before we do, however, I want to draw your attention to our migration files.
By default, when you run tests (when, not if) Django creates a new database based on migrations files. Despite living in memory, this process can be quite time consuming. A fun exercise for learning to optimize code is to take the code in our migrations and attempt to speed them up. This exercise also provides the opportunity for us to use the Q object.
Info
It is possible to disable migrations during tests. If you have a large number of migrations, disabling them for your tests may be advisable.
When we programmed our Tag data migration in ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.