Add compatibility functions for working with database routers.

Review Request #9550 — Created Jan. 28, 2018 and submitted

Information

Django Evolution
master
ad50151...

Reviewers

We check the database router in order to determine if we want to handle
evolutions for a particular model. The code that does this today checks
for certain attributes on the router and then calls a function. However,
this isn't quite good enough, as the function signature even for
Django's migrations capability has changed twice.

We now have a couple compatibility functions that check whether models
are allowed to migrate (Django >= 1.7) or be synced to the database
(Django <= 1.6). These handle the different function signatures we have
to deal with.

Unit tests are not added in this change, but will be here as part of a
set of signature function test rewrites.

Unit tests pass on supported versions of Django.

david
  1. Ship It!
  2. 
      
chipx86
Review request changed

Status: Closed (submitted)

Change Summary:

Pushed to master (1aee097)
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