Commit Graph

449 Commits

Author SHA1 Message Date
Ville Skyttä 03db5fddfd Fixed typos in docs, comments, and exception messages. 2019-04-18 09:33:53 +02:00
Matthias Kestenholz ea071870f9 Fixed #30280 -- Restored Model.get_FIELD_display()'s coercion of lazy strings.
Reverted cc79c7ee63.
2019-03-22 12:30:10 -04:00
Matt Westcott 58ad030d05 Fixed #30254 -- Allowed model metaclasses to access the attribute dict in __init__().
Regression in a68ea23101.
2019-03-14 21:05:23 -04:00
Mariusz Felisiak f69c7bbdce
Refs #29408 -- Cosmetic edits for validation of related fields and lookups in model Meta.ordering.
Follow up to 440505cb2c.
2019-03-01 19:38:21 +01:00
Hasan Ramezani 440505cb2c Fixed #29408 -- Added validation of related fields and lookups in model Meta.ordering. 2019-03-01 17:09:33 +01:00
Simon Charette 8d2dcc47cd Fixed #30106 -- Made order_with_respect_to updates use QuerySet.bulk_update(). 2019-01-21 17:02:20 -05:00
Paveł Tyślacki b69f8eb04c Fixed #30062 -- Added support for unique conditional constraints. 2019-01-12 09:50:20 -05:00
Sergey Fedoseev a68ea23101 Fixed #29970, #30041 -- Made ModelBase.__new__() pass attrs without contribute_to_class() to type.__new__(). 2018-12-22 18:11:24 -05:00
Simon Charette db13bca60a Fixed #29641 -- Added support for unique constraints in Meta.constraints.
This constraint is similar to Meta.unique_together but also allows
specifying a name.

Co-authored-by: Ian Foote <python@ian.feete.org>
2018-11-13 17:57:27 -05:00
Tim Graham f77fc56c96
Fixed #29896 -- Fixed incorrect Model.save() cache relation clearing for foreign keys that use to_field.
Regression in ee49306176.
2018-10-28 22:54:02 -04:00
Florian Apolloner bc7dd8490b Fixed #21171 -- Avoided starting a transaction when a single (or atomic queries) are executed.
Checked the following locations:

 * Model.save(): If there are parents involved, take the safe way and use
   transactions since this should be an all or nothing operation.

   If the model has no parents:

    * Signals are executed before and after the previous existing
      transaction -- they were never been part of the transaction.

    * if `force_insert` is set then only one query is executed -> atomic
      by definition and no transaction needed.

    * same applies to `force_update`.

    * If a primary key is set and no `force_*` is set Django will try an
      UPDATE and if that returns zero rows it tries an INSERT. The first
      case is completly save (single query). In the second case a
      transaction should not produce different results since the update
      query is basically a no-op then (might miss something though).

 * QuerySet.update(): no signals issued, single query -> no transaction
   needed.

 * Model/Collector.delete(): This one is fun due to the fact that is
   does many things at once.

   Most importantly though: It does send signals as part of the
   transaction, so for maximum backwards compatibility we need to be
   conservative.

   To ensure maximum compatibility the transaction here is removed only
   if the following holds true:

     * A single instance is being deleted.
     * There are no signal handlers attached to that instance.
     * There are no deletions/updates to cascade.
     * There are no parents which also need deletion.
2018-10-17 12:19:02 +02:00
Jon Dufresne cc79c7ee63 Refs #27795 -- Removed force_text() in Model._get_FIELD_display(). 2018-08-31 10:59:57 -04:00
Simon Willison 586a9dc429 Fixed #26352 -- Made system check allow ManyToManyField to target the same model if through_fields differs. 2018-08-22 12:07:29 -04:00
Ming Qin cfb4845f06 Fixed #29625 -- Made Model.refresh_from_db() clear prefetch related caches. 2018-08-20 12:01:42 -04:00
Ramiro Morales b5c7cb4d33 Fixed #29653 -- Fixed missing related_query_name reverse accessor if GenericRelation is declared on an abstract base model.
Regression in 4ab027b944.

Thanks Lauri Kainulainen for the report.
2018-08-10 12:17:26 -04:00
François Dupayrat 861638a307 Fixed #29568 -- Prevented unnecessary UPDATE queries creating child models. 2018-07-20 08:59:15 -04:00
Ian Foote 952f05a6db Fixed #11964 -- Added support for database check constraints. 2018-07-10 15:32:33 -04:00
Tim Graham e7185a6514 Refs #29516 -- Reverted inadvertent change in Model.__init__(). 2018-06-25 09:39:16 -04:00
Federico Bond 4c36414323 Fixed #29517 -- Rephrased error message when passing incorrect kwarg to model constructor 2018-06-25 09:30:58 +02:00
Carlton Gibson 21fd8041c1
Refs #29358 -- Corrected wording in primary key check message. 2018-05-03 15:28:37 +02:00
Hasan Ramezani 816b8d9518 Fixed #29358 -- Added a system check to prohibit models with more than one primary_key field. 2018-05-03 09:08:29 +02:00
robwa 4ab027b944 Fixed #28988 -- Fixed queries when a GenericRelation is used with multi-table inheritance. 2018-03-12 22:42:48 -04:00
Дилян Палаузов f427ffcccb Fixed #29093 -- Simplified a few lines in ModelBase.__new__(). 2018-01-31 10:22:56 -05:00
Jon Dufresne 136bf5c214 Fixed #29076 -- Made Model.refresh_from_db() clear cached relationships even if the related id doesn't change. 2018-01-30 10:43:53 -05:00
Дилян Палаузов d7b2aa24f7 Fixed #28982 -- Simplified code with and/or. 2018-01-03 20:12:23 -05:00
shanghui cc6bcc6ff5 Fixed #28867 -- Added system check for a model property that clashes with a related field accessor. 2018-01-03 10:34:31 -05:00
Simon Charette f5a989e603 Fixed #28974 -- Made refresh_from_db() hint routers about its instance. 2018-01-02 09:42:24 -05:00
Tim Graham d065c92678
Fixed #28918 -- Fixed Model.refresh_from_db() for instances hidden by the default manager. 2017-12-30 18:00:36 -05:00
hui shang f1aa58479c Fixed #28714 -- Added system checks for invalid model field names in Meta.indexes.
Thanks Gabriel for the report and Adam Johnson for the review.
2017-12-27 18:56:24 -05:00
Дилян Палаузов 4c599ece57 Fixed #28930 -- Simplified code with any() and all(). 2017-12-26 17:11:15 -05:00
Nick Pope d13a9e44de Fixed #28909 -- Simplified code using tuple/list/set/dict unpacking. 2017-12-11 07:08:45 -05:00
Дилян Палаузов d2afa5eb23 Fixed #28860 -- Removed unnecessary len() calls. 2017-12-04 10:35:23 -05:00
Paulo ee49306176 Fixed #27710 -- Made Model.save() invalidate cached, stale relations after a primary key assignment. 2017-11-09 11:40:34 -05:00
k 399a8db33b Fixed #28695 -- Allowed models to use __init_subclass__(). 2017-10-13 21:29:12 -04:00
Simon Charette 216eda103b Refs #28575 -- Removed unnecessary code for model exception pickling.
Setting __qualname__ is sufficient for pickling of DoesNotExist and
and MultipleObjectsReturned to work correctly.
2017-10-13 15:45:12 -04:00
Rachel Tobin 6c92f711ea Refs #28575 -- Allowed pickling Model.DoesNotExist and MultipleObjectsReturned classes. 2017-10-13 09:16:09 -04:00
Paulo a7b5ad8b19 Fixed #27846 -- Made Model.refresh_from_db() clear cached relations. 2017-10-12 17:04:10 -04:00
Mariusz Felisiak fb02ebe889 Fixed #28597 -- Fixed crash with the name of a model's autogenerated primary key in an Index's fields. 2017-09-18 14:06:00 -04:00
Sergey Fedoseev 5b1c389603 Refs #23919 -- Replaced usage of django.utils.functional.curry() with functools.partial()/partialmethod(). 2017-09-06 13:11:18 -04:00
Dima Kudosh 093fd479d6 Fixed #28335 -- Allowed query expressions in Meta.ordering. 2017-09-05 19:10:20 -04:00
Sergey Fedoseev 5cc7462067 Refs #28459 -- Optimized ModelState instantiation. 2017-08-11 15:41:04 -04:00
Nerl~ 97cb3bd16d Fixed #28456 -- Allowed customizing Model pickling by overriding __getstate__(). 2017-08-11 15:27:25 -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 78f7f68021 Refs #28459 -- Improved performance of Model.from_db() when fields are deferred. 2017-08-02 09:16:36 -04:00
Sergey Fedoseev aadd3aeb2b Avoided creating temporary lists for obtaining the first item. 2017-07-31 11:02:23 -04:00
Tim Graham 3d0a0ecd2c Refs #23919 -- Removed support for broken Model.__str__() in Model.__repr__().
Returning invalid bytestrings in __str__() is unlikely in Python 3.
2017-06-11 15:52:19 -04:00
Collin Anderson 1a49b89470 Fixed #27953 -- Added instance's pk to Model.__str__(). 2017-06-09 13:42:53 -04:00
Jon Dufresne 0c3c37a376 Fixed #28282 -- Fixed class-based indexes name for models that only inherit Model. 2017-06-08 09:36:12 -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
Jon Dufresne 21046e7773 Fixed #28249 -- Removed unnecessary dict.keys() calls.
iter(dict) is equivalent to iter(dict.keys()).
2017-05-27 19:08:46 -04:00
Jon Dufresne 7be94e0335 Replaced set |= operator with update() to avoid temporary set. 2017-04-27 08:16:19 -04:00
Tim Graham 3d19d1428a Fixed #27915 -- Allowed Meta.indexes to be defined in abstract models.
Thanks Markus Holtermann for review.
2017-03-21 10:53:21 -04:00
Claude Paroz 8346680e1c Refs #27795 -- Removed unneeded force_text calls
Thanks Tim Graham for the review.
2017-03-04 18:18:21 +01:00
Anton Samarchyan 60e52a047e Refs #27656 -- Updated django.db docstring verbs according to PEP 257. 2017-02-28 09:17:27 -05:00
Claude Paroz c651331b34 Converted usage of ugettext* functions to their gettext* aliases
Thanks Tim Graham for the review.
2017-02-07 09:04:04 +01:00
Tim Graham 29f607927f Fixed spelling of "nonexistent". 2017-02-03 08:01:45 -05:00
chillaranand d6eaf7c018 Refs #23919 -- Replaced super(ClassName, self) with super(). 2017-01-25 12:23:46 -05:00
Claude Paroz 042b7350a0 Refs #23919 -- Removed unneeded str() calls 2017-01-20 14:13:55 +01:00
Claude Paroz dc8834cad4 Refs #23919 -- Removed unneeded force_str calls 2017-01-20 08:44:31 +01:00
Simon Charette cecc079168 Refs #23919 -- Stopped inheriting from object to define new style classes. 2017-01-19 08:39:46 +01:00
Aymeric Augustin eb422e476f Refs #23919 -- Removed obsolete __ne__() methods.
__ne__() defaults to the opposite of __eq__() on Python 3
when it doesn't return NotImplemented.
2017-01-18 21:44:00 -05:00
Claude Paroz 2b281cc35e Refs #23919 -- Removed most of remaining six usage
Thanks Tim Graham for the review.
2017-01-18 21:33:28 +01:00
Claude Paroz 7b2f2e74ad Refs #23919 -- Removed six.<various>_types usage
Thanks Tim Graham and Simon Charette for the reviews.
2017-01-18 20:18:46 +01:00
Claude Paroz c716fe8782 Refs #23919 -- Removed six.PY2/PY3 usage
Thanks Tim Graham for the review.
2017-01-18 16:21:28 +01:00
Claude Paroz f3c43ad1fd Refs #23919 -- Removed python_2_unicode_compatible decorator usage 2017-01-18 13:44:34 +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
Adam Chainz d2a26c1a90 Optimized Model instantiation a bit.
* Avoid some unnecessary attribute lookups, e.g. access signals directly rather than from module
* Alias some repeat accesses inside the method to use the slightly faster local lookups
* Use tuple to iterate remaining kwargs as it's faster to construct
* Cache Field.get_default() to avoid running through all the logic on every call
* Use a cached list of the properties on the model class to avoid repeat isinstance() calls
2016-12-15 13:42:44 -05:00
Tim Graham dd99e69fa8 Refs #27025 -- Fixed Python 3.6 deprecation warning for empty model super() calls.
https://bugs.python.org/issue23722

Thanks Nick Coghlan for advice and review.
2016-12-05 19:37:23 -05:00
Adam Chainz 6252fd6314 Fixed #27532 -- Deprecated Model._meta.has_auto_field 2016-11-25 13:24:11 -05:00
Adam Chainz 92bbef8b9e Improved the way Model.save() skips the auto_field.
Identity comparison is quicker than isinstance(), and it avoids coupling
between Model and AutoField.
2016-11-24 06:01:36 -05:00
Quentin Fulsher f62abfc03d Fixed #27295 -- Added a system check to prohibit model names that start or end with an underscore or contain double underscores. 2016-11-22 10:14:10 -05:00
Adam Chainz 74742aa956 Fixed #27512 -- Removed unused code in Model.__init__(). 2016-11-20 19:39:32 -05:00
Adam Chainz 9d4246419c Refs #26207 -- Removed obsolete comments about deferred model classes. 2016-11-20 18:22:13 -05:00
Adam Chainz cc1f6f26b6 Fixed #27514 -- Tested Model.__init__ excessive number of fields. 2016-11-20 13:21:59 -05:00
Ramin Farajpour Cami 967be82443 Fixed E305 flake8 warnings. 2016-11-14 12:30:46 -05:00
Nick Pope f1664a2734 Replaced '__' with LOOKUP_SEP constant. 2016-10-11 11:14:06 -04:00
Akshesh 6a8372e6ec Fixed #26808 -- Added Meta.indexes for class-based indexes.
* Added the index name to its deconstruction.
* Added indexes to sqlite3.schema._remake_table() so that indexes
  aren't dropped when _remake_table() is called.

Thanks timgraham & MarkusH for review and advice.
2016-08-05 18:12:51 -04:00
Andrew Nester baff4dd37d Fixed #25292 -- Fixed crash in ManyToManyField.through_fields check. 2016-06-30 08:53:38 -04:00
Jon Dufresne 267dc4addd Fixed #4136 -- Made ModelForm save empty values for nullable CharFields as NULL.
Previously, empty values were saved as strings.
2016-06-13 09:14:36 -04:00
Marti Raudsepp b9ae662c97 Fixed #26620 -- Made Model.refresh_from_db() fail when passed unknown kwargs. 2016-05-18 09:27:23 -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
Loïc Bistuer 3a47d42fa3 Fixed #20932, #25897 -- Streamlined manager inheritance. 2016-05-17 02:29:22 +07:00
Aron Podrigal 85ef98dc6e Fixed #24305 -- Allowed overriding fields on abstract models.
Fields inherited from abstract base classes may be overridden like
any other Python attribute. Inheriting from multiple models/classes
with the same attribute name will follow the MRO.
2016-05-16 07:32:21 -04:00
Michal Petrucha 8a47ba679d Refs #16508 -- Made Model.__init__() aware of virtual fields.
It's no longer necessary for GenericForeignKey (and any other virtual fields)
to intercept the field's values using the pre_init signal.
2016-05-03 09:06:26 -04:00
Anssi Kääriäinen 7f51876f99 Fixed #26207 -- Replaced dynamic classes with non-data descriptors for deferred instance loading. 2016-04-29 13:06:32 -04:00
Michal Petrucha c339a5a6f7 Refs #16508 -- Renamed the current "virtual" fields to "private".
The only reason why GenericForeignKey and GenericRelation are stored
separately inside _meta is that they need to be cloned for every model
subclass, but that's not true for any other virtual field. Actually,
it's only true for GenericRelation.
2016-04-13 10:10:53 -04:00
Tim Graham df8d8d4292 Fixed E128 flake8 warnings in django/. 2016-04-08 09:51:06 -04:00
Tim Graham 2cd2d18851 Fixed W503 flake8 warnings. 2016-04-04 17:14:26 -04:00
Akshesh 49f95cc0a0 Fixed #11560 -- Allowed proxy model multiple-inheritance from the same concrete base model. 2016-03-30 13:06:27 -04:00
Simon Charette 67cf5efa31 Fixed #26413 -- Fixed a regression with abstract model inheritance and explicit parent links.
Thanks Trac alias trkjgrdg for the report and Tim for investigation and review.
2016-03-28 21:11:37 -04:00
Tim Graham 004ba0f99e Removed unneeded hint=None/obj=None in system check messages. 2016-02-12 13:01:25 -05:00
Tim Graham 10a162809f Refs #24007 -- Removed an apps.populate() call in model unpickling that can cause deadlocks. 2016-02-08 08:28:48 -05:00
Joshua Phillips 16baec5c8a Fixed #25910 -- Rejected read-only property names in model constructors. 2016-01-22 13:27:11 -05:00
Varun Sharma 692d055890 Fixed #25984 -- Corrected RuntimeError message in ModelBase.__new__(). 2015-12-24 16:44:58 -05:00
Tim Graham 54e2e688e1 Fixed #25715 -- Fixed Model.refresh_from_db() with ForeignKey w/on_delete=SET_NULL. 2015-11-21 10:34:01 -05:00
Simon Charette 4cd5d846d4 Fixed #25730 -- Made Model.__str__() always return str instances.
Thanks to Kevin Turner for the report and Tim for the review.
2015-11-11 12:18:52 -05:00
Simon Charette a82e21b0f9 Refs #18012 -- Removed the now unused proxied_children model option.
Thanks to Tim for the review.
2015-10-12 12:14:27 -04:00
Raphael Merx f5a33e4840 Fixed #25296 -- Prevented model related object cache pollution when create() fails due to an unsaved object. 2015-09-19 20:49:13 -04:00