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34 Commits

Author SHA1 Message Date
Simon Charette 8a03445885 Removed in_between from Operation.reduce()'s signature. 
It isn't used since FieldOperation.references_model() takes into
account models referenced by the field it's operating on.
 2018-07-11 10:49:50 -04:00
Simon Charette 37cafbfb79 Fixed #27845 -- Allowed both right and left optimizations of operations. 
Thanks Raphael Gaschignard for the suggestion.
 2018-07-11 10:49:50 -04:00
Simon Charette d3a935f01f Refs #27768 -- Reversed order of optimized and in-between operations. 
Operations can only be optimized through if they don't reference any of the
state the operation they are compared against defines or alters, so it's
safe to reverse the order.
 2018-07-11 10:49:50 -04:00
Anton Samarchyan 60e52a047e Refs #27656 -- Updated django.db docstring verbs according to PEP 257. 2017-02-28 09:17:27 -05:00
Simon Charette cecc079168 Refs #23919 -- Stopped inheriting from object to define new style classes. 2017-01-19 08:39:46 +01:00
Claude Paroz d7b9aaa366 Refs #23919 -- Removed encoding preambles and future imports 2017-01-18 09:55:19 +01:00
Simon Charette 49f4c9f4c6 Fixed #26064 -- Moved operation reduction logic to their own class. 
Thanks to Markus Holtermann and Tim Graham for their review.
 2016-01-23 14:19:02 -05:00
Markus Holtermann c5eca74619 Sorted reduce methods in migration optimizer 
Thanks Tim Graham for the review.
 2015-06-16 00:46:04 +02:00
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 432623603c Changed reduce method lookup in migration optimizer to dict 
Thanks Andrew Godwin and Simon Charette for the review.
 2015-06-14 20:44:22 +02:00
Markus Holtermann 4a7d374fd5 Explicitly imported migration operations in optimizer 
Thanks Andrew Godwin for the review.
 2015-06-14 20:34:54 +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
Anssi Kääriäinen 8f30556329 Renamed Field.rel attribute to remote_field 
Field.rel is now deprecated. Rel objects have now also remote_field
attribute. This means that self == self.remote_field.remote_field.

In addition, made the Rel objects a bit more like Field objects. Still,
marked ManyToManyFields as null=True.
 2015-03-25 08:16:12 -04:00
Adam Taylor 039465a6a7 Fixed typos in code comments. 2015-01-20 12:18:03 -05:00
Markus Holtermann 1f03d2d924 Refs #23822 -- Made MigrationOptimizer aware of model managers 2015-01-07 17:33:04 -05:00
Markus Holtermann 12bf42ae0d Refs #22608 -- Optimized migration optimizer 
Moved list constants instantiation into optimizer's __init__.
 2015-01-07 08:54:46 -05:00
Ulrich Petri 391bb09bb0 Refs #22608 -- Optimized migration optimizer and migrate by caching calls to str.lower() 2015-01-07 08:54:46 -05:00
Berker Peksag c9178ef17a Limited lines to 119 characters in django/{contrib,db}. 
Refs #23395.
 2014-10-29 07:59:35 -04:00
Andrew Godwin b30d32ff24 Fixed #22875: Optimizer did not take through= into account. 2014-06-22 11:23:45 -07:00
Andrew Godwin 6e3ac5f474 Fixed #22847: Optimizer wasn't expecting unresolved FKs 2014-06-16 10:28:31 -07:00
Alex Gaynor d17a4cb037 Fixed several flake8 errors 2014-06-15 20:45:15 -04:00
Andrew Godwin c1276785f9 Fixed #22568: Better proxy model support in migrations 2014-06-15 16:01:49 -07:00
Tim Graham b5a54168f9 Fixed flake8 errors. 2014-06-06 08:29:27 -04:00
Andrew Godwin aa12ea05ce Rewrote migration autodetector to involve actual computer science. 
Fixes #22605, #22735; also lays the ground for some other fixes.
 2014-06-05 23:25:35 -07:00
Claude Paroz 12474dacef Added a bunch of missing unicode_literals 
Refs #22564.
 2014-05-06 09:13:07 +02:00
Rodolfo Carvalho 0d91225892 Fixed many typos in comments and docstrings. 
Thanks Piotr Kasprzyk for help with the patch.
 2014-03-03 07:38:09 -05:00
Loic Bistuer a2814846ca Fixed E124 pep8 warnings. 2013-12-10 15:12:48 -05:00
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 c347f78cc1 Fixed all E226 violations 2013-11-03 10:08:55 -08:00
Alex Gaynor 7548aa8ffd More attacking E302 violators 2013-11-02 13:12:09 -07:00
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