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24 Commits

Author SHA1 Message Date
Ed Morley bfd42392ab Simplified tests with assertDoesNotOptimize(). 2017-01-25 13:52:44 -05:00
Claude Paroz d7b9aaa366 Refs #23919 -- Removed encoding preambles and future imports 2017-01-18 09:55:19 +01:00
Ed Morley 7156a6c9c4 Fixed #27717 -- Allowed migration optimization across AlterModelOptions. 2017-01-10 18:38:48 -05:00
za 321e94fa41 Refs #27392 -- Removed "Tests that", "Ensures that", etc. from test docstrings. 2016-11-10 21:30:21 -05:00
Sergey Fedoseev 7fc4c1db62 Fixed #26710 -- Made CreateModel.references_model() take app_label into account. 2016-06-06 11:49:45 -04:00
James Robert 417e083e55 Fixed #26521 -- Validated CreateModel bases, fields and managers for duplicates. 2016-04-27 12:43:56 -04:00
Simon Charette 729e0b086d Fixed #24109 -- Allowed RunSQL and RunPython operations to be elided. 
Thanks to Markus Holtermann and Tim Graham for their review.
 2016-01-23 14:19:03 -05:00
Dražen Odobašić b1e33ceced Fixed #23395 -- Limited line lengths to 119 characters. 2015-09-12 11:40:50 -04:00
Flavio Curella c2e70f0265 Fixed #21127 -- Started deprecation toward requiring on_delete for ForeignKey/OneToOneField 2015-07-27 18:28:13 -04:00
Markus Holtermann e470f311d6 Fixed #24828 -- Allowed migration optimization across AlterFooTogether 
The idea behind this change is, that AlterUniqueTogether,
AlterIndexTogether and AlterOrderWithRespectTo can always be moved after
an Add/Alter/Rename/RemoveField operation if they don't refer to the
respective field and are not empty sets / None.

Combined with the optimizations of duplicate AlterUniqueTogether,
AlterIndexTogether, and AlterOrderWithRespectTo operations from
128caa1e16, these operations are optimized
in a later round of the optimizer.

Thanks Tim Graham for the review.
 2015-06-16 00:43:22 +02:00
Markus Holtermann 128caa1e16 Optimized duplicate AlterModelTable/AlterFooTogether/AlterOWRT 
Thanks Andrew Godwin for the review.
 2015-06-14 20:34:48 +02:00
Markus Holtermann 5bc412c35a Took AlterOrderWithRespectTo into account when optimizing migrations 
Thanks Andrew Godwin for the review.
 2015-06-14 20:34:34 +02:00
Simon Charette be67400b47 Refs #24652 -- Used SimpleTestCase where appropriate. 2015-05-20 13:46:13 -04:00
Tim Graham 0ed7d15563 Sorted imports with isort; refs #23860. 2015-02-06 08:16:28 -05:00
Markus Holtermann 1f03d2d924 Refs #23822 -- Made MigrationOptimizer aware of model managers 2015-01-07 17:33:04 -05:00
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