Commit Graph

9 Commits

Author SHA1 Message Date
Patryk Zawadzki 21e21c7bc2 Fixed #23844 -- Used topological sort for migration operation dependency resolution.
This removes the concept of equality between operations to guarantee
compatilibity with Python 3.

Python 3 requires equality to result in identical object hashes. It's
impossible to implement a unique hash that preserves equality as
operations such as field creation depend on being able to accept
arbitrary dicts that cannot be hashed reliably.

Thanks Klaas van Schelven for the original patch in
13d613f800.
2014-11-20 12:49:49 -05:00
Andrew Godwin b30d32ff24 Fixed #22875: Optimizer did not take through= into account. 2014-06-22 11:23:45 -07:00
Claude Paroz e520a73eee Harmonized some PEP 0263 coding preambles 2014-05-15 19:58:41 +02:00
Alex Gaynor e5b7045422 flake8 fixes 2013-11-06 20:00:48 -08:00
Andrew Godwin 106b019dc9 Massive migration optimiser improvements + RenameModel opn 2013-11-06 13:47:58 +00:00
Alex Gaynor f67e18f39e Fixed all E251 violations 2013-11-03 10:17:58 -08:00
Tim Graham 36ded01527 Fixed #21302 -- Fixed unused imports and import *. 2013-11-02 15:24:56 -04:00
Andrew Godwin 42f8666f6a Improve migration optimizer to be able to optimize through other ops 2013-10-16 11:09:33 +01:00
Andrew Godwin a80d9ab0fe Initial version of MigrationOptimizer and tests 2013-10-02 17:34:22 +01:00