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be bypassed.
Backport of 81e1a35c364e5353d2bf99368ad30a4184fbb653 from master
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These cached properies were causing problems with pickling, and in
addition they were confusingly defined: field.rel.model._meta was
not the same as field.rel.opts.
Instead users should use field.rel.related_model._meta inplace of
field.rel.opts, and field.rel.to._meta in place of field.rel.to_opts.
Backport of f95122e541df5bebb9b5ebb6226b0013e5edc893 from master
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Backport of ea3168dc6ced391d848c511a14cfcecfeac9d401 from master
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Backport of 99a1bbf9853e0b06385d7f221a90828e6c060132 from master
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As suggested by Anssi. This has the slightly strange side effect of
passing the expression to Expression.convert_value has the expression
passed back to it, but it allows more complex patterns of expressions.
Backport of 32d4db66b9 from master
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Joint effort between myself, Josh, Anssi and Shai.
Conflicts:
django/db/models/query.py
tests/model_fields/models.py
Backport of 4755f8fc25331c739a6f932cc8aba0cc9e62e352 from master.
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Thanks Carl Meyer and Tim Graham for the reviews and to all involved
in the discussion.
Backport of 18c0aaa9123579375294fcc4a8ee7e3530176b88 from master
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Backport of de0241eb985c6dec978beda119fee353ef3e9604 from master
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Backport of 0ed7d155635da9f79d4dd67e4889087d3673c6da from master
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Backport of 2d7c27d3870e57edd1b2ac46b49f0a8804753a1e from master
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Backport of 0f54cf28c09a80254571487e3af93be2096cfdac from master
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The method is mainly intended for use with UUIDField. For UUIDField we
want to call the field's default even when primary key value is
explicitly set to None to match the behavior of AutoField.
Thanks to Marc Tamlyn and Tim Graham for review.
Backport of 8adc59038cdc6ce4f9170e4de2d716d940e136b3 from master
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An explicit `__exact` lookup in the related managers filters
was interpreted as a reference to a foreign `exact` field.
Thanks to Trac alias zhiyajun11 for the report, Josh for the investigation,
Loïc for the test name and Tim for the review.
Backport of eb4cdfbdd64a95b303eaaa40a070521aa58362fd from master
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Backport of f60973111806100d284d41c12206c04740063549 from master
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Several issues resolved here, following from a report that a base_field
of GenericIpAddressField was failing.
We were using get_prep_value instead of get_db_prep_value in ArrayField
which was bypassing any extra modifications to the value being made in
the base field's get_db_prep_value. Changing this broke datetime
support, so the postgres backend has gained the relevant operation
methods to send dates/times/datetimes directly to the db backend instead
of casting them to strings. Similarly, a new database feature has been
added allowing the uuid to be passed directly to the backend, as we do
with timedeltas.
On the other side, psycopg2 expects an Inet() instance for IP address
fields, so we add a value_to_db_ipaddress method to wrap the strings on
postgres. We also have to manually add a database adapter to psycopg2,
as we do not wish to use the built in adapter which would turn
everything into Inet() instances.
Thanks to smclenithan for the report.
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These refactorings making overriding some text based lookup names on
other fields (specifically `contains`) much cleaner. It also removes a
bunch of duplication in the contrib.postgres lookups.
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Refactored compiler SELECT, GROUP BY and ORDER BY generation.
While there, also refactored select_related() implementation
(get_cached_row() and get_klass_info() are now gone!).
Made get_db_converters() method work on expressions instead of
internal_type. This allows the backend converters to target
specific expressions if need be.
Added query.context, this can be used to set per-query state.
Also changed the signature of database converters. They now accept
context as an argument.
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Thanks to Russell Keith-Magee for mentoring this Google Summer of
Code 2014 project and everyone else who helped with the patch!
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Thanks Markus Holterman and Berker Peksag for review.
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Thanks Markus Holtermann for review.
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refs #22340.
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This reduces how frequently this logic is run significantly.
Thanks to Anssi for the suggestion.
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Use INTERVAL DAY(9) TO SECOND(6) for Durationfield on Oracle rather than
storing as a NUMBER(19) of microseconds.
There are issues with cx_Oracle which require some extra data
manipulation in the database backend when constructing queries, but it
handles the conversion back to timedelta objects cleanly.
Thanks to Shai for the review.
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A field for storing periods of time - modeled in Python by timedelta. It
is stored in the native interval data type on PostgreSQL and as a bigint
of microseconds on other backends.
Also includes significant changes to the internals of time related maths
in expressions, including the removal of DateModifierNode.
Thanks to Tim and Josh in particular for reviews.
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deconstruction."
This reverts commit 45bd7b3bd9008941580c100b9fc7361e3ff3ff0d.
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comprehension
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Thanks Jonathan Lindén for the initial patch, and Tim Graham
and Gabe Jackson for the suggestions.
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Usage of this method was removed pre 1.0 (c2ba59fc).
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Fixed issue with warning message displayed for unbound naive datetime
objects when USE_TZ is True. Adds unit test that demonstrates the issue
(discoverable when using a custom lookup in MySQL).
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Added update_or_create to RelatedManager, ManyRelatedManager and
GenericRelatedObjectManager.
Added missing get_or_create to GenericRelatedObjectManager.
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Validates that related_name is a valid Python id or ends with a '+' and
it's not a keyword. Without a check it passed silently leading to
unpredictable problems.
Thanks Konrad Świat for the initial work.
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Thanks Collin Anderson for the review.
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deconstruction.
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and ReverseSingleRelatedObjectDescriptor so they actually return QuerySet
instances.
Also ensured that SingleRelatedObjectDescriptor.get_queryset() accounts
for use_for_related_fields=True.
This cleanup lays the groundwork for #23533.
Thanks Anssi Kääriäinen for the review.
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