Commit Graph

51 Commits

Author SHA1 Message Date
Simon Charette 0cf85e6b07 Refs #29908 -- Optimized known related objects assignment.
Since CPython implements a C level attrgetter(*attrs) it even outperforms the
most common case of a single known related object since the resulting attribute
values tuple is built in C.
2018-11-17 18:56:11 -05:00
Simon Charette 75dfa92a05 Fixed #29908 -- Fixed setting of foreign key after related set access if ForeignKey uses to_field.
Adjusted known related objects handling of target fields which relies on
from and to_fields and has the side effect of fixing a bug bug causing
N+1 queries when using reverse foreign objects.

Thanks Carsten Fuchs for the report.
2018-11-08 19:51:15 -05:00
oliver 1299421cad Fixed #29725 -- Removed unnecessary join in QuerySet.count() and exists() on a many-to-many relation. 2018-10-15 11:01:57 -04:00
Alexandr Tatarinov 7410618528 Fixed #29447 -- Made RelatedManager.set() pass bulk argument to clear(). 2018-06-25 13:04:46 -04:00
Paulo 265506bbc3 Refs #28834 -- Moved ancestor field cached value fallback to related fields descriptor. 2018-05-14 21:17:02 -04:00
Stefan R. Filipek a5a2ceeb45 Fixed #27629 -- Added router.allow_relation() calls for assignments between unsaved model instances. 2018-05-10 20:42:44 -04:00
Jon Dufresne 8b21878357 Refs #28723 -- Fixed stale prefetch_related cache after add/remove.
Regression in 514b2c989a.
2018-02-05 11:02:57 -05:00
Mike Hansen 514b2c989a Fixed #28723 -- Fixed RelatedManager's prefetch_related() cache name. 2017-11-02 10:06:00 -04:00
Paulo fcfcf8aae4 Fixed #28742 -- Fixed AttributeError crash when assigning None to cached reverse relations. 2017-10-30 14:02:03 -04:00
Simon Charette d4fb742094 Refs #28575 -- Made RelatedObjectDoesNotExist classes pickable.
Thanks to Rachel Tobin for the initial __qualname__ work and tests.
2017-10-18 21:43:53 -04:00
Simon Charette 0a69479b6c Fixed outdated comment in RelatedObjectDoesNotExist. 2017-10-18 20:31:47 -04:00
Simon Charette 9dd405973c Corrected examples in related field descriptor docstrings.
Using lowercased model class names suggested that accessing the attribute
from instances of the class returned an instance of the descriptor, but
this is only the case when accessed from the model class.
2017-10-13 16:06:08 -04:00
Paulo fea9cb46aa Fixed #28375 -- Fixed KeyError crash on reverse prefetch of a model with OneToOneField primary key to a non-pk field. 2017-08-21 16:14:13 -04:00
Paulo bfb746f983 Refs #16043 -- Refactored internal fields value cache.
* Removed all hardcoded logic for _{fieldname}_cache.
* Added an internal API for interacting with the field values cache.

Thanks carljm and MarkusH for support.
2017-08-10 12:06:02 -04:00
Sergey Fedoseev 38988f289f Avoided creation of temporary sets. 2017-07-29 10:16:43 -04:00
Paulo Alvarado c432927160 Fixed #26362 -- Fixed update of the inherited id field of an object when its parent changes. 2017-06-26 12:11:20 -04:00
Tim Graham 5a52d932ef Replaced Model._get_pk_val() with pk property.
Model.pk was added after _get_pk_val() and many places weren't simplified.
2017-06-05 15:20:34 -04:00
Jon Dufresne 2c69824e5a Refs #23968 -- Removed unnecessary lists, generators, and tuple calls. 2017-06-01 19:08:59 -04:00
Tim Graham 59ab1b2683 Fixed #28210 -- Fixed Model._state.adding on MTI parent model after saving child model.
Regression in 38575b007a.
2017-05-19 13:22:17 -04:00
Tim Graham 584e10c76e Fixed #28166 -- Fixed Model._state.db on MTI parent model after saving child model.
Regression in 38575b007a.
2017-05-03 12:14:15 -04:00
Vytis Banaitis 8838d4dd49 Refs #23919 -- Replaced kwargs.pop() with keyword-only arguments. 2017-02-01 11:41:56 -05:00
chillaranand d6eaf7c018 Refs #23919 -- Replaced super(ClassName, self) with super(). 2017-01-25 12:23:46 -05:00
Simon Charette 9695b14982 Refs #23919 -- Removed str() conversion of type and method __name__. 2017-01-19 11:31:07 -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
Tim Graham 631f4ab061 Removed Manager.use_for_related_fields and Meta.manager_inheritance_from_future.
Per deprecation timeline. Refs ed0ff913c6.
2017-01-17 20:52:04 -05:00
Tim Graham ed251246cc Refs #25550 -- Removed support for direct assignment to the reverse side of a related set. 2017-01-17 20:52:01 -05:00
Andrey Kuzminov b8741c0058 Refs #18823 -- Corrected field name in an m2m manager error message. 2016-12-23 09:31:26 -05:00
InvalidInterrupt 98359109eb Fixed #17002 -- Allowed using a ManyToManyField through model that inherits another. 2016-12-07 17:50:51 -05:00
Yoong Kang Lim d30febb4e5 Fixed #26706 -- Made RelatedManager modification methods clear prefetch_related() cache. 2016-08-05 13:32:27 -04:00
Tim Graham 5fa4370543 Refs #25550 -- Corrected deprecation message for assigning M2M relations. 2016-07-30 20:50:09 -04:00
Julien Hartmann f4afb85d7e Fixed #26749 -- Preserved behavior of use_for_related_field during deprecation. 2016-07-11 13:30:44 -04:00
Tim Graham 908c26b079 Fixed typos in db/models/fields/related_descriptors.py 2016-06-07 08:53:05 -04:00
Paulo 1a2a7cc01e Fixed typo in db/models/fields/related_descriptors.py 2016-06-07 08:50:06 -04:00
Paulo 3e9f769fd1 Refs #15250 -- Added docstring for ForwardOneToOneDescriptor. 2016-06-07 07:22:32 -04:00
Paulo 38575b007a Fixed #15250 -- Avoided extra query on some multi-table inheritance queries.
Thanks marekw2143 for the initial patch and carljm for support.
2016-06-03 10:18:24 -04:00
Loïc Bistuer ed0ff913c6 Fixed #10506, #13793, #14891, #25201 -- Introduced new APIs to specify models' default and base managers.
This deprecates use_for_related_fields.

Old API:

class CustomManager(models.Model):
    use_for_related_fields = True

class Model(models.Model):
    custom_manager = CustomManager()

New API:

class Model(models.Model):
    custom_manager = CustomManager()

    class Meta:
        base_manager_name = 'custom_manager'

Refs #20932, #25897.

Thanks Carl Meyer for the guidance throughout this work.
Thanks Tim Graham for writing the docs.
2016-05-17 12:07:22 +07:00
Ville Skyttä 575a9a791e Normalized "an SQL" spelling. 2016-05-03 19:30:48 -04:00
Tim Graham df8d8d4292 Fixed E128 flake8 warnings in django/. 2016-04-08 09:51:06 -04:00
Simon Charette c92123cc1d Fixed #26226 -- Made related managers honor the queryset used for prefetching their results.
Thanks Loïc for the suggested improvements and Tim for the review.
2016-03-02 16:10:18 -05:00
ZachLiuGIS 04e13c8913 Fixed #26179 -- Removed null assignment check for non-nullable foreign key fields. 2016-02-11 10:07:39 -05:00
Anssi Kääriäinen 353aecbf8c Fixed #26153 -- Reallowed Q-objects in ForeignObject.get_extra_descriptor_filter(). 2016-02-11 08:59:43 -05:00
userimack 60586dd737 Fixed #26125 -- Fixed E731 flake warnings. 2016-01-25 14:23:43 -05:00
Tim Graham 9c5e272860 Fixed #25550 -- Deprecated direct assignment to the reverse side of a related set. 2015-10-27 07:57:15 -04:00
Tim Graham 0b5d32faca Fixed #25611 -- Standardized descriptor signatures. 2015-10-26 11:31:16 -04:00
Simon Charette 6c9f37ea9e Fixed #18012 -- Propagated reverse foreign keys from proxy to concrete models.
Thanks to Anssi for the review.
2015-10-12 12:14:26 -04:00
Tim Graham 384ddbec1b Fixed #14368 -- Allowed setting a reverse OneToOne relation to None. 2015-10-09 10:20:53 -04:00
Aymeric Augustin e542e81b39 Renamed descriptor classes for related objects.
The old names were downright confusing. Some seemed to mean the opposite
of what the class actually did.

The new names follow a consistent nomenclature:

    (Forward|Reverse)(ManyToOne|OneToOne|ManyToMany)Descriptor.

I mentioned combinations that do not exist in the docstring in order to
help people who would search for them in the code base.
2015-09-21 22:20:42 +02:00
Aymeric Augustin 2409a4241a Added comments in related instances descriptors. 2015-09-21 22:06:04 +02:00
Aymeric Augustin 497d915299 Documented related models descriptors.
Changed the poll / choices example to a more obvious parent / children.
I think that reduces the cognitive load.
2015-09-21 22:06:03 +02:00