November 2015
Beginner to intermediate
840 pages
26h 30m
English
Content preview from Django Unleashed15.7.2 Data Migration for
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15.7.2 Data Migration for Site
To create a new data migration, we create an empty migration with a custom name, as shown in Example 15.33.
Example 15.33: Shell Code
$ ./manage.py makemigrations --empty --name=sites_data core Migrations for 'core': 0001_sites_data.py:
Our first goal is to determine what dependencies our migration has. The sites app has a single migration, defined in django/contrib/flatpages/migrations in the 0001_initial.py file. We therefore change our dependencies list in Example 15.34.
Example 15.34: Project Code
core/migrations/0001_sites_data.py in 40667a7881
36 class Migration(migrations.Migration): 37 38 dependencies = [ 39 ('sites', '0001_initial' ...
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