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author | Thomas Goirand <thomas@goirand.fr> | 2014-07-03 15:13:48 +0800 |
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committer | Thomas Goirand <thomas@goirand.fr> | 2014-07-03 15:13:48 +0800 |
commit | 45918ff19633304a0e2a4d389a958bee46c03eff (patch) | |
tree | 8fb81a4a9bb21ef113fa14eeaec41ee8ceb1c1cb /docs | |
parent | 80628cd9bde3d8ffc989541a9171a569a5101dc0 (diff) | |
parent | 87f8cc0cc0d2f48f489c81b8c93e8ab6de6cff26 (diff) | |
download | factory-boy-45918ff19633304a0e2a4d389a958bee46c03eff.tar factory-boy-45918ff19633304a0e2a4d389a958bee46c03eff.tar.gz |
Merge tag '2.4.1' into debian/unstable
Release of factory_boy 2.4.1
Diffstat (limited to 'docs')
-rw-r--r-- | docs/changelog.rst | 44 | ||||
-rw-r--r-- | docs/examples.rst | 18 | ||||
-rw-r--r-- | docs/fuzzy.rst | 40 | ||||
-rw-r--r-- | docs/ideas.rst | 3 | ||||
-rw-r--r-- | docs/introduction.rst | 41 | ||||
-rw-r--r-- | docs/orms.rst | 97 | ||||
-rw-r--r-- | docs/recipes.rst | 62 | ||||
-rw-r--r-- | docs/reference.rst | 243 |
8 files changed, 428 insertions, 120 deletions
diff --git a/docs/changelog.rst b/docs/changelog.rst index 4917578..7d77f7f 100644 --- a/docs/changelog.rst +++ b/docs/changelog.rst @@ -2,6 +2,50 @@ ChangeLog ========= +.. _v2.4.1: + +2.4.1 (2014-06-23) +------------------ + +*Bugfix:* + + - Fix overriding deeply inherited attributes (set in one factory, overridden in a subclass, used in a sub-sub-class). + +.. _v2.4.0: + +2.4.0 (2014-06-21) +------------------ + +*New:* + + - Add support for :attr:`factory.fuzzy.FuzzyInteger.step`, thanks to `ilya-pirogov <https://github.com/ilya-pirogov>`_ (:issue:`120`) + - Add :meth:`~factory.django.mute_signals` decorator to temporarily disable some signals, thanks to `ilya-pirogov <https://github.com>`_ (:issue:`122`) + - Add :class:`~factory.fuzzy.FuzzyFloat` (:issue:`124`) + - Declare target model and other non-declaration fields in a ``class Meta`` section. + +*Deprecation:* + + - Use of ``FACTORY_FOR`` and other ``FACTORY`` class-level attributes is deprecated and will be removed in 2.5. + Those attributes should now declared within the :class:`class Meta <factory.FactoryOptions>` attribute: + + For :class:`factory.Factory`: + + * Rename :attr:`~factory.Factory.FACTORY_FOR` to :attr:`~factory.FactoryOptions.model` + + * Rename :attr:`~factory.Factory.FACTORY_FOR` to :attr:`~factory.FactoryOptions.model` + * Rename :attr:`~factory.Factory.ABSTRACT_FACTORY` to :attr:`~factory.FactoryOptions.abstract` + * Rename :attr:`~factory.Factory.FACTORY_STRATEGY` to :attr:`~factory.FactoryOptions.strategy` + * Rename :attr:`~factory.Factory.FACTORY_ARG_PARAMETERS` to :attr:`~factory.FactoryOptions.inline_args` + * Rename :attr:`~factory.Factory.FACTORY_HIDDEN_ARGS` to :attr:`~factory.FactoryOptions.exclude` + + For :class:`factory.django.DjangoModelFactory`: + + * Rename :attr:`~factory.django.DjangoModelFactory.FACTORY_DJANGO_GET_OR_CREATE` to :attr:`~factory.django.DjangoOptions.django_get_or_create` + + For :class:`factory.alchemy.SQLAlchemyModelFactory`: + + * Rename :attr:`~factory.alchemy.SQLAlchemyModelFactory.FACTORY_SESSION` to :attr:`~factory.alchemy.SQLAlchemyOptions.sqlalchemy_session` + .. _v2.3.1: 2.3.1 (2014-01-22) diff --git a/docs/examples.rst b/docs/examples.rst index aab990a..ee521e3 100644 --- a/docs/examples.rst +++ b/docs/examples.rst @@ -56,14 +56,16 @@ And now, we'll define the related factories: class AccountFactory(factory.Factory): - FACTORY_FOR = objects.Account + class Meta: + model = objects.Account username = factory.Sequence(lambda n: 'john%s' % n) email = factory.LazyAttribute(lambda o: '%s@example.org' % o.username) class ProfileFactory(factory.Factory): - FACTORY_FOR = objects.Profile + class Meta: + model = objects.Profile account = factory.SubFactory(AccountFactory) gender = factory.Iterator([objects.Profile.GENDER_MALE, objects.Profile.GENDER_FEMALE]) @@ -112,12 +114,9 @@ We can now use our factories, for tests: def test_get_profile_stats(self): profiles = [] - for _ in xrange(4): - profiles.append(factories.ProfileFactory()) - for _ in xrange(2): - profiles.append(factories.FemaleProfileFactory()) - for _ in xrange(2): - profiles.append(factories.ProfileFactory(planet='Tatooine')) + profiles.extend(factories.ProfileFactory.batch_create(4)) + profiles.extend(factories.FemaleProfileFactory.batch_create(2)) + profiles.extend(factories.ProfileFactory.batch_create(2, planet="Tatooine")) stats = business_logic.profile_stats(profiles) self.assertEqual({'Earth': 6, 'Mars': 2}, stats.planets) @@ -131,8 +130,7 @@ Or for fixtures: from . import factories def make_objects(): - for _ in xrange(50): - factories.ProfileFactory() + factories.ProfileFactory.batch_create(size=50) # Let's create a few, known objects. factories.ProfileFactory( diff --git a/docs/fuzzy.rst b/docs/fuzzy.rst index b94dfa5..1480419 100644 --- a/docs/fuzzy.rst +++ b/docs/fuzzy.rst @@ -73,7 +73,7 @@ FuzzyChoice FuzzyInteger ------------ -.. class:: FuzzyInteger(low[, high]) +.. class:: FuzzyInteger(low[, high[, step]]) The :class:`FuzzyInteger` fuzzer generates random integers within a given inclusive range. @@ -82,7 +82,7 @@ FuzzyInteger .. code-block:: pycon - >>> FuzzyInteger(0, 42) + >>> fi = FuzzyInteger(0, 42) >>> fi.low, fi.high 0, 42 @@ -98,12 +98,18 @@ FuzzyInteger int, the inclusive higher bound of generated integers + .. attribute:: step + + int, the step between values in the range; for instance, a ``FuzzyInteger(0, 42, step=3)`` + might only yield values from ``[0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42]``. + + FuzzyDecimal ------------ -.. class:: FuzzyDecimal(low[, high]) +.. class:: FuzzyDecimal(low[, high[, precision=2]]) - The :class:`FuzzyDecimal` fuzzer generates random integers within a given + The :class:`FuzzyDecimal` fuzzer generates random :class:`decimals <decimal.Decimal>` within a given inclusive range. The :attr:`low` bound may be omitted, in which case it defaults to 0: @@ -134,6 +140,32 @@ FuzzyDecimal int, the number of digits to generate after the dot. The default is 2 digits. +FuzzyFloat +---------- + +.. class:: FuzzyFloat(low[, high]) + + The :class:`FuzzyFloat` fuzzer provides random :class:`float` objects within a given inclusive range. + + .. code-block:: pycon + + >>> FuzzyFloat(0.5, 42.7) + >>> fi.low, fi.high + 0.5, 42.7 + + >>> fi = FuzzyFloat(42.7) + >>> fi.low, fi.high + 0.0, 42.7 + + + .. attribute:: low + + decimal, the inclusive lower bound of generated floats + + .. attribute:: high + + decimal, the inclusive higher bound of generated floats + FuzzyDate --------- diff --git a/docs/ideas.rst b/docs/ideas.rst index 914e640..f3c9e62 100644 --- a/docs/ideas.rst +++ b/docs/ideas.rst @@ -4,5 +4,6 @@ Ideas This is a list of future features that may be incorporated into factory_boy: -* **A 'options' attribute**: instead of adding more class-level constants, use a django-style ``class Meta`` Factory attribute with all options there +* When a :class:`Factory` is built or created, pass the calling context throughout the calling chain instead of custom solutions everywhere +* Define a proper set of rules for the support of third-party ORMs diff --git a/docs/introduction.rst b/docs/introduction.rst index 86e2046..d00154d 100644 --- a/docs/introduction.rst +++ b/docs/introduction.rst @@ -18,10 +18,11 @@ Basic usage ----------- -Factories declare a set of attributes used to instantiate an object, whose class is defined in the FACTORY_FOR attribute: +Factories declare a set of attributes used to instantiate an object, whose class is defined in the ``class Meta``'s ``model`` attribute: - Subclass ``factory.Factory`` (or a more suitable subclass) -- Set its ``FACTORY_FOR`` attribute to the target class +- Add a ``class Meta:`` block +- Set its ``model`` attribute to the target class - Add defaults for keyword args to pass to the associated class' ``__init__`` method @@ -31,7 +32,8 @@ Factories declare a set of attributes used to instantiate an object, whose class from . import base class UserFactory(factory.Factory): - FACTORY_FOR = base.User + class Meta: + model = base.User firstname = "John" lastname = "Doe" @@ -56,7 +58,8 @@ A given class may be associated to many :class:`~factory.Factory` subclasses: .. code-block:: python class EnglishUserFactory(factory.Factory): - FACTORY_FOR = base.User + class Meta: + model = base.User firstname = "John" lastname = "Doe" @@ -64,7 +67,8 @@ A given class may be associated to many :class:`~factory.Factory` subclasses: class FrenchUserFactory(factory.Factory): - FACTORY_FOR = base.User + class Meta: + model = base.User firstname = "Jean" lastname = "Dupont" @@ -88,7 +92,8 @@ This is achieved with the :class:`~factory.Sequence` declaration: .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = models.User + class Meta: + model = models.User username = factory.Sequence(lambda n: 'user%d' % n) @@ -104,7 +109,8 @@ This is achieved with the :class:`~factory.Sequence` declaration: .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = models.User + class Meta: + model = models.User @factory.sequence def username(n): @@ -121,7 +127,8 @@ taking the object being built and returning the value for the field: .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = models.User + class Meta: + model = models.User username = factory.Sequence(lambda n: 'user%d' % n) email = factory.LazyAttribute(lambda obj: '%s@example.com' % obj.username) @@ -146,7 +153,8 @@ taking the object being built and returning the value for the field: .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = models.User + class Meta: + model = models.User username = factory.Sequence(lambda n: 'user%d' % n) @@ -168,7 +176,8 @@ and update them with its own declarations: .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = base.User + class Meta: + model = base.User firstname = "John" lastname = "Doe" @@ -209,13 +218,14 @@ Non-kwarg arguments Some classes take a few, non-kwarg arguments first. -This is handled by the :data:`~factory.Factory.FACTORY_ARG_PARAMETERS` attribute: +This is handled by the :data:`~factory.FactoryOptions.inline_args` attribute: .. code-block:: python class MyFactory(factory.Factory): - FACTORY_FOR = MyClass - FACTORY_ARG_PARAMETERS = ('x', 'y') + class Meta: + model = MyClass + inline_args = ('x', 'y') x = 1 y = 2 @@ -251,7 +261,8 @@ Calling a :class:`~factory.Factory` subclass will provide an object through the .. code-block:: python class MyFactory(factory.Factory): - FACTORY_FOR = MyClass + class Meta: + model = MyClass .. code-block:: pycon @@ -265,6 +276,6 @@ Calling a :class:`~factory.Factory` subclass will provide an object through the <MyClass: X (saved)> -The default strategy can be changed by setting the class-level :attr:`~factory.Factory.FACTORY_STRATEGY` attribute. +The default strategy can be changed by setting the ``class Meta`` :attr:`~factory.FactoryOptions.strategy` attribute. diff --git a/docs/orms.rst b/docs/orms.rst index e50e706..2aa27b2 100644 --- a/docs/orms.rst +++ b/docs/orms.rst @@ -32,7 +32,7 @@ All factories for a Django :class:`~django.db.models.Model` should use the This class provides the following features: - * The :attr:`~factory.Factory.FACTORY_FOR` attribute also supports the ``'app.Model'`` + * The :attr:`~factory.FactoryOptions.model` attribute also supports the ``'app.Model'`` syntax * :func:`~factory.Factory.create()` uses :meth:`Model.objects.create() <django.db.models.query.QuerySet.create>` * :func:`~factory.Factory._setup_next_sequence()` selects the next unused primary key value @@ -42,6 +42,18 @@ All factories for a Django :class:`~django.db.models.Model` should use the .. attribute:: FACTORY_DJANGO_GET_OR_CREATE + .. deprecated:: 2.4.0 + See :attr:`DjangoOptions.django_get_or_create`. + + +.. class:: DjangoOptions(factory.base.FactoryOptions) + + The ``class Meta`` on a :class:`~DjangoModelFactory` supports an extra parameter: + + .. attribute:: django_get_or_create + + .. versionadded:: 2.4.0 + Fields whose name are passed in this list will be used to perform a :meth:`Model.objects.get_or_create() <django.db.models.query.QuerySet.get_or_create>` instead of the usual :meth:`Model.objects.create() <django.db.models.query.QuerySet.create>`: @@ -49,8 +61,9 @@ All factories for a Django :class:`~django.db.models.Model` should use the .. code-block:: python class UserFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = 'myapp.User' # Equivalent to ``FACTORY_FOR = myapp.models.User`` - FACTORY_DJANGO_GET_OR_CREATE = ('username',) + class Meta: + model = 'myapp.User' # Equivalent to ``model = myapp.models.User`` + django_get_or_create = ('username',) username = 'john' @@ -80,15 +93,21 @@ All factories for a Django :class:`~django.db.models.Model` should use the .. code-block:: python class MyAbstractModelFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = models.MyAbstractModel - ABSTRACT_FACTORY = True + class Meta: + model = models.MyAbstractModel + abstract = True class MyConcreteModelFactory(MyAbstractModelFactory): - FACTORY_FOR = models.MyConcreteModel + class Meta: + model = models.MyConcreteModel Otherwise, factory_boy will try to get the 'next PK' counter from the abstract model. +Extra fields +"""""""""""" + + .. class:: FileField Custom declarations for :class:`django.db.models.FileField` @@ -108,7 +127,8 @@ All factories for a Django :class:`~django.db.models.Model` should use the .. code-block:: python class MyFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = models.MyModel + class Meta: + model = models.MyModel the_file = factory.django.FileField(filename='the_file.dat') @@ -145,7 +165,8 @@ All factories for a Django :class:`~django.db.models.Model` should use the .. code-block:: python class MyFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = models.MyModel + class Meta: + model = models.MyModel the_image = factory.django.ImageField(color='blue') @@ -157,6 +178,44 @@ All factories for a Django :class:`~django.db.models.Model` should use the None +Disabling signals +""""""""""""""""" + +Signals are often used to plug some custom code into external components code; +for instance to create ``Profile`` objects on-the-fly when a new ``User`` object is saved. + +This may interfere with finely tuned :class:`factories <DjangoModelFactory>`, which would +create both using :class:`~factory.RelatedFactory`. + +To work around this problem, use the :meth:`mute_signals()` decorator/context manager: + +.. method:: mute_signals(signal1, ...) + + Disable the list of selected signals when calling the factory, and reactivate them upon leaving. + +.. code-block:: python + + # foo/factories.py + + import factory + import factory.django + + from . import models + from . import signals + + @factory.django.mute_signals(signals.pre_save, signals.post_save) + class FooFactory(factory.django.DjangoModelFactory): + class Meta: + model = models.Foo + + # ... + + def make_chain(): + with factory.django.mute_signals(signals.pre_save, signals.post_save): + # pre_save/post_save won't be called here. + return SomeFactory(), SomeOtherFactory() + + Mogo ---- @@ -200,7 +259,7 @@ factory_boy supports `MongoEngine`_-style models, through the :class:`MongoEngin * :func:`~factory.Factory.create()` builds an instance through ``__init__`` then saves it. - .. note:: If the :attr:`associated class <factory.Factory.FACTORY_FOR>` is a :class:`mongoengine.EmbeddedDocument`, + .. note:: If the :attr:`associated class <factory.FactoryOptions.model` is a :class:`mongoengine.EmbeddedDocument`, the :meth:`~MongoEngineFactory.create` function won't "save" it, since this wouldn't make sense. This feature makes it possible to use :class:`~factory.SubFactory` to create embedded document. @@ -214,7 +273,7 @@ SQLAlchemy Factoy_boy also supports `SQLAlchemy`_ models through the :class:`SQLAlchemyModelFactory` class. -To work, this class needs an `SQLAlchemy`_ session object affected to "FACTORY_SESSION" class attribute. +To work, this class needs an `SQLAlchemy`_ session object affected to the :attr:`Meta.sqlalchemy_session <SQLAlchemyOptions.sqlalchemy_session>` attribute. .. _SQLAlchemy: http://www.sqlalchemy.org/ @@ -229,7 +288,18 @@ To work, this class needs an `SQLAlchemy`_ session object affected to "FACTORY_S .. attribute:: FACTORY_SESSION - Fields whose SQLAlchemy session object are passed will be used to communicate with the database + .. deprecated:: 2.4.0 + See :attr:`~SQLAlchemyOptions.sqlalchemy_session`. + +.. class:: SQLAlchemyOptions(factory.base.FactoryOptions) + + In addition to the usual parameters available in :class:`class Meta <factory.base.FactoryOptions>`, + a :class:`SQLAlchemyModelFactory` also supports the following settings: + + .. attribute:: sqlalchemy_session + + SQLAlchemy session to use to communicate with the database when creating + an object through this :class:`SQLAlchemyModelFactory`. A (very) simple exemple: @@ -256,8 +326,9 @@ A (very) simple exemple: class UserFactory(SQLAlchemyModelFactory): - FACTORY_FOR = User - FACTORY_SESSION = session # the SQLAlchemy session object + class Meta: + model = User + sqlalchemy_session = session # the SQLAlchemy session object id = factory.Sequence(lambda n: n) name = factory.Sequence(lambda n: u'User %d' % n) diff --git a/docs/recipes.rst b/docs/recipes.rst index c1f3700..72dacef 100644 --- a/docs/recipes.rst +++ b/docs/recipes.rst @@ -26,7 +26,8 @@ use the :class:`~factory.SubFactory` declaration: from . import models class UserFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = models.User + class Meta: + model = models.User first_name = factory.Sequence(lambda n: "Agent %03d" % n) group = factory.SubFactory(GroupFactory) @@ -53,7 +54,8 @@ use a :class:`~factory.RelatedFactory` declaration: # factories.py class UserFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = models.User + class Meta: + model = models.User log = factory.RelatedFactory(UserLogFactory, 'user', action=models.UserLog.ACTION_CREATE) @@ -66,7 +68,7 @@ Example: Django's Profile """"""""""""""""""""""""" Django (<1.5) provided a mechanism to attach a ``Profile`` to a ``User`` instance, -using a :class:`~django.db.models.ForeignKey` from the ``Profile`` to the ``User``. +using a :class:`~django.db.models.OneToOneField` from the ``Profile`` to the ``User``. A typical way to create those profiles was to hook a post-save signal to the ``User`` model. @@ -75,7 +77,8 @@ factory_boy allows to define attributes of such profiles dynamically when creati .. code-block:: python class ProfileFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = my_models.Profile + class Meta: + model = my_models.Profile title = 'Dr' # We pass in profile=None to prevent UserFactory from creating another profile @@ -83,7 +86,8 @@ factory_boy allows to define attributes of such profiles dynamically when creati user = factory.SubFactory('app.factories.UserFactory', profile=None) class UserFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = auth_models.User + class Meta: + model = auth_models.User username = factory.Sequence(lambda n: "user_%d" % n) @@ -145,12 +149,14 @@ hook: # factories.py class GroupFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = models.Group + class Meta: + model = models.Group name = factory.Sequence(lambda n: "Group #%s" % n) class UserFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = models.User + class Meta: + model = models.User name = "John Doe" @@ -200,17 +206,20 @@ If more links are needed, simply add more :class:`RelatedFactory` declarations: # factories.py class UserFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = models.User + class Meta: + model = models.User name = "John Doe" class GroupFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = models.Group + class Meta: + model = models.Group name = "Admins" class GroupLevelFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = models.GroupLevel + class Meta: + model = models.GroupLevel user = factory.SubFactory(UserFactory) group = factory.SubFactory(GroupFactory) @@ -273,21 +282,48 @@ Here, we want: # factories.py class CountryFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = models.Country + class Meta: + model = models.Country name = factory.Iterator(["France", "Italy", "Spain"]) lang = factory.Iterator(['fr', 'it', 'es']) class UserFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = models.User + class Meta: + model = models.User name = "John" lang = factory.SelfAttribute('country.lang') country = factory.SubFactory(CountryFactory) class CompanyFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = models.Company + class Meta: + model = models.Company name = "ACME, Inc." country = factory.SubFactory(CountryFactory) owner = factory.SubFactory(UserFactory, country=factory.SelfAttribute('..country')) + + +Custom manager methods +---------------------- + +Sometimes you need a factory to call a specific manager method other then the +default :meth:`Model.objects.create() <django.db.models.query.QuerySet.create>` method: + +.. code-block:: python + + class UserFactory(factory.DjangoModelFactory): + class Meta: + model = UserenaSignup + + username = "l7d8s" + email = "my_name@example.com" + password = "my_password" + + @classmethod + def _create(cls, model_class, *args, **kwargs): + """Override the default ``_create`` with our custom call.""" + manager = cls._get_manager(model_class) + # The default would use ``manager.create(*args, **kwargs)`` + return manager.create_user(*args, **kwargs) diff --git a/docs/reference.rst b/docs/reference.rst index 53584a0..b0dda50 100644 --- a/docs/reference.rst +++ b/docs/reference.rst @@ -11,37 +11,54 @@ For internals and customization points, please refer to the :doc:`internals` sec The :class:`Factory` class -------------------------- -.. class:: Factory +.. class:: FactoryOptions + + .. versionadded:: 2.4.0 + + A :class:`Factory`'s behaviour can be tuned through a few settings. - The :class:`Factory` class is the base of factory_boy features. + For convenience, they are declared in a single ``class Meta`` attribute: + + .. code-block:: python - It accepts a few specific attributes (must be specified on class declaration): + class MyFactory(factory.Factory): + class Meta: + model = MyObject + abstract = False - .. attribute:: FACTORY_FOR + .. attribute:: model This optional attribute describes the class of objects to generate. If unset, it will be inherited from parent :class:`Factory` subclasses. - .. attribute:: ABSTRACT_FACTORY + .. versionadded:: 2.4.0 + + .. attribute:: abstract This attribute indicates that the :class:`Factory` subclass should not be used to generate objects, but instead provides some extra defaults. It will be automatically set to ``True`` if neither the :class:`Factory` - subclass nor its parents define the :attr:`~Factory.FACTORY_FOR` attribute. + subclass nor its parents define the :attr:`~FactoryOptions.model` attribute. + + .. warning:: This flag is reset to ``False`` When a :class:`Factory` subclasses + another one if a :attr:`~FactoryOptions.model` is set. + + .. versionadded:: 2.4.0 - .. attribute:: FACTORY_ARG_PARAMETERS + .. attribute:: inline_args Some factories require non-keyword arguments to their :meth:`~object.__init__`. - They should be listed, in order, in the :attr:`FACTORY_ARG_PARAMETERS` + They should be listed, in order, in the :attr:`inline_args` attribute: .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = User - FACTORY_ARG_PARAMETERS = ('login', 'email') + class Meta: + model = User + inline_args = ('login', 'email') login = 'john' email = factory.LazyAttribute(lambda o: '%s@example.com' % o.login) @@ -53,22 +70,25 @@ The :class:`Factory` class <User: john> >>> User('john', 'john@example.com', firstname="John") # actual call - .. attribute:: FACTORY_HIDDEN_ARGS + .. versionadded:: 2.4.0 + + .. attribute:: exclude While writing a :class:`Factory` for some object, it may be useful to have general fields helping defining others, but that should not be - passed to the target class; for instance, a field named 'now' that would + passed to the model class; for instance, a field named 'now' that would hold a reference time used by other objects. - Factory fields whose name are listed in :attr:`FACTORY_HIDDEN_ARGS` will + Factory fields whose name are listed in :attr:`exclude` will be removed from the set of args/kwargs passed to the underlying class; they can be any valid factory_boy declaration: .. code-block:: python class OrderFactory(factory.Factory): - FACTORY_FOR = Order - FACTORY_HIDDEN_ARGS = ('now',) + class Meta: + model = Order + exclude = ('now',) now = factory.LazyAttribute(lambda o: datetime.datetime.utcnow()) started_at = factory.LazyAttribute(lambda o: o.now - datetime.timedelta(hours=1)) @@ -83,6 +103,67 @@ The :class:`Factory` class >>> OrderFactory(now=datetime.datetime(2013, 4, 1, 10)) <Order: started 2013-04-01 09:00:00, paid 2013-04-01 09:10:00> + .. versionadded:: 2.4.0 + + + .. attribute:: strategy + + Use this attribute to change the strategy used by a :class:`Factory`. + The default is :data:`BUILD_STRATEGY`. + + + +.. class:: Factory + + .. note:: In previous versions, the fields of :class:`class Meta <factory.FactoryOptions>` were + defined as class attributes on :class:`Factory`. This is now deprecated and will be removed + in 2.5.0. + + .. attribute:: FACTORY_FOR + + .. deprecated:: 2.4.0 + See :attr:`FactoryOptions.model`. + + .. attribute:: ABSTRACT_FACTORY + + .. deprecated:: 2.4.0 + See :attr:`FactoryOptions.abstract`. + + .. attribute:: FACTORY_ARG_PARAMETERS + + .. deprecated:: 2.4.0 + See :attr:`FactoryOptions.inline_args`. + + .. attribute:: FACTORY_HIDDEN_ARGS + + .. deprecated:: 2.4.0 + See :attr:`FactoryOptions.exclude`. + + .. attribute:: FACTORY_STRATEGY + + .. deprecated:: 2.4.0 + See :attr:`FactoryOptions.strategy`. + + + **Class-level attributes:** + + .. attribute:: _meta + + .. versionadded:: 2.4.0 + + The :class:`FactoryOptions` instance attached to a :class:`Factory` class is available + as a :attr:`_meta` attribute. + + .. attribute:: _options_class + + .. versionadded:: 2.4.0 + + If a :class:`Factory` subclass needs to define additional, extra options, it has to + provide a custom :class:`FactoryOptions` subclass. + + A pointer to that custom class should be provided as :attr:`_options_class` so that + the :class:`Factory`-building metaclass can use it instead. + **Base functions:** @@ -162,7 +243,7 @@ The :class:`Factory` class The :meth:`_adjust_kwargs` extension point allows for late fields tuning. It is called once keyword arguments have been resolved and post-generation - items removed, but before the :attr:`FACTORY_ARG_PARAMETERS` extraction + items removed, but before the :attr:`~FactoryOptions.inline_args` extraction phase. .. code-block:: python @@ -189,19 +270,19 @@ The :class:`Factory` class Subclasses may fetch the next free ID from the database, for instance. - .. classmethod:: _build(cls, target_class, *args, **kwargs) + .. classmethod:: _build(cls, model_class, *args, **kwargs) .. OHAI_VIM* This class method is called whenever a new instance needs to be built. - It receives the target class (provided to :attr:`FACTORY_FOR`), and + It receives the model class (provided to :attr:`~FactoryOptions.model`), and the positional and keyword arguments to use for the class once all has been computed. Subclasses may override this for custom APIs. - .. classmethod:: _create(cls, target_class, *args, **kwargs) + .. classmethod:: _create(cls, model_class, *args, **kwargs) .. OHAI_VIM* @@ -214,10 +295,11 @@ The :class:`Factory` class .. code-block:: python class BaseBackendFactory(factory.Factory): - ABSTRACT_FACTORY = True # Optional + class Meta: + abstract = True # Optional - def _create(cls, target_class, *args, **kwargs): - obj = target_class(*args, **kwargs) + def _create(cls, model_class, *args, **kwargs): + obj = model_class(*args, **kwargs) obj.save() return obj @@ -254,7 +336,7 @@ The :class:`Factory` class >>> SomeFactory._next_sequence 4 - Since subclasses of a non-:attr:`abstract <factory.Factory.ABSTRACT_FACTORY>` + Since subclasses of a non-:attr:`abstract <factory.FactoryOptions.abstract>` :class:`~factory.Factory` share the same sequence counter, special care needs to be taken when resetting the counter of such a subclass. @@ -293,7 +375,7 @@ factory_boy supports two main strategies for generating instances, plus stubs. but not persisted to any datastore. It is usually a simple call to the :meth:`~object.__init__` method of the - :attr:`~Factory.FACTORY_FOR` class. + :attr:`~FactoryOptions.model` class. .. data:: CREATE_STRATEGY @@ -316,7 +398,7 @@ factory_boy supports two main strategies for generating instances, plus stubs. when using the ``create`` strategy. That policy will be used if the - :attr:`associated class <Factory.FACTORY_FOR>` has an ``objects`` + :attr:`associated class <FactoryOptions.model` has an ``objects`` attribute *and* the :meth:`~Factory._create` classmethod of the :class:`Factory` wasn't overridden. @@ -337,7 +419,7 @@ factory_boy supports two main strategies for generating instances, plus stubs. .. data:: STUB_STRATEGY The 'stub' strategy is an exception in the factory_boy world: it doesn't return - an instance of the :attr:`~Factory.FACTORY_FOR` class, and actually doesn't + an instance of the :attr:`~FactoryOptions.model` class, and actually doesn't require one to be present. Instead, it returns an instance of :class:`StubObject` whose attributes have been @@ -359,7 +441,7 @@ factory_boy supports two main strategies for generating instances, plus stubs. .. class:: StubFactory(Factory) - An :attr:`abstract <Factory.ABSTRACT_FACTORY>` :class:`Factory`, + An :attr:`abstract <FactoryOptions.abstract>` :class:`Factory`, with a default strategy set to :data:`STUB_STRATEGY`. @@ -414,7 +496,8 @@ accept the object being built as sole argument, and return a value. .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User username = 'john' email = factory.LazyAttribute(lambda o: '%s@example.com' % o.username) @@ -449,7 +532,8 @@ return value of the method: .. code-block:: python class UserFactory(factory.Factory) - FACTORY_FOR = User + class Meta: + model = User name = u"Jean" @@ -487,7 +571,8 @@ This declaration takes a single argument, a function accepting a single paramete .. code-block:: python class UserFactory(factory.Factory) - FACTORY_FOR = User + class Meta: + model = User phone = factory.Sequence(lambda n: '123-555-%04d' % n) @@ -512,7 +597,8 @@ be the sequence counter - this might be confusing: .. code-block:: python class UserFactory(factory.Factory) - FACTORY_FOR = User + class Meta: + model = User @factory.sequence def phone(n): @@ -537,7 +623,8 @@ The sequence counter is shared across all :class:`Sequence` attributes of the .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User phone = factory.Sequence(lambda n: '%04d' % n) office = factory.Sequence(lambda n: 'A23-B%03d' % n) @@ -561,7 +648,8 @@ sequence counter is shared: .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User phone = factory.Sequence(lambda n: '123-555-%04d' % n) @@ -596,7 +684,8 @@ class-level value. .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User uid = factory.Sequence(int) @@ -631,7 +720,8 @@ It takes a single argument, a function whose two parameters are, in order: .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User login = 'john' email = factory.LazyAttributeSequence(lambda o, n: '%s@s%d.example.com' % (o.login, n)) @@ -655,7 +745,8 @@ handles more complex cases: .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User login = 'john' @@ -692,7 +783,8 @@ The :class:`SubFactory` attribute should be called with: .. code-block:: python class FooFactory(factory.Factory): - FACTORY_FOR = Foo + class Meta: + model = Foo bar = factory.SubFactory(BarFactory) # Not BarFactory() @@ -705,7 +797,8 @@ Definition # A standard factory class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User # Various fields first_name = 'John' @@ -714,7 +807,8 @@ Definition # A factory for an object with a 'User' field class CompanyFactory(factory.Factory): - FACTORY_FOR = Company + class Meta: + model = Company name = factory.Sequence(lambda n: 'FactoryBoyz' + 'z' * n) @@ -794,13 +888,15 @@ This issue can be handled by passing the absolute import path to the target .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User username = 'john' main_group = factory.SubFactory('users.factories.GroupFactory') class GroupFactory(factory.Factory): - FACTORY_FOR = Group + class Meta: + model = Group name = "MyGroup" owner = factory.SubFactory(UserFactory) @@ -828,7 +924,8 @@ That declaration takes a single argument, a dot-delimited path to the attribute .. code-block:: python class UserFactory(factory.Factory) - FACTORY_FOR = User + class Meta: + model = User birthdate = factory.Sequence(lambda n: datetime.date(2000, 1, 1) + datetime.timedelta(days=n)) birthmonth = factory.SelfAttribute('birthdate.month') @@ -854,13 +951,15 @@ gains an "upward" semantic through the double-dot notation, as used in Python im .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User language = 'en' class CompanyFactory(factory.Factory): - FACTORY_FOR = Company + class Meta: + model = Company country = factory.SubFactory(CountryFactory) owner = factory.SubFactory(UserFactory, language=factory.SelfAttribute('..country.language')) @@ -888,7 +987,8 @@ through the :attr:`~containers.LazyStub.factory_parent` attribute of the passed- .. code-block:: python class CompanyFactory(factory.Factory): - FACTORY_FOR = Company + class Meta: + model = Company country = factory.SubFactory(CountryFactory) owner = factory.SubFactory(UserFactory, language=factory.LazyAttribute(lambda user: user.factory_parent.country.language), @@ -966,7 +1066,8 @@ adequate value. .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User # CATEGORY_CHOICES is a list of (key, title) tuples category = factory.Iterator(User.CATEGORY_CHOICES, getter=lambda c: c[0]) @@ -987,7 +1088,8 @@ use the :func:`iterator` decorator: .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User @factory.iterator def name(): @@ -1030,7 +1132,8 @@ with the :class:`Dict` and :class:`List` attributes: .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User is_superuser = False roles = factory.Dict({ @@ -1066,7 +1169,8 @@ with the :class:`Dict` and :class:`List` attributes: .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User flags = factory.List([ 'user', @@ -1113,7 +1217,8 @@ For instance, a :class:`PostGeneration` hook is declared as ``post``: .. code-block:: python class SomeFactory(factory.Factory): - FACTORY_FOR = SomeObject + class Meta: + model = SomeObject @post_generation def post(self, create, extracted, **kwargs): @@ -1128,7 +1233,7 @@ When calling the factory, some arguments will be extracted for this method: - Any argument starting with ``post__XYZ`` will be extracted, its ``post__`` prefix removed, and added to the kwargs passed to the post-generation hook. -Extracted arguments won't be passed to the :attr:`~Factory.FACTORY_FOR` class. +Extracted arguments won't be passed to the :attr:`~FactoryOptions.model` class. Thus, in the following call: @@ -1142,7 +1247,7 @@ Thus, in the following call: ) The ``post`` hook will receive ``1`` as ``extracted`` and ``{'y': 3, 'z__t': 42}`` -as keyword arguments; ``{'post_x': 2}`` will be passed to ``SomeFactory.FACTORY_FOR``. +as keyword arguments; ``{'post_x': 2}`` will be passed to ``SomeFactory._meta.model``. RelatedFactory @@ -1184,7 +1289,8 @@ RelatedFactory .. code-block:: python class FooFactory(factory.Factory): - FACTORY_FOR = Foo + class Meta: + model = Foo bar = factory.RelatedFactory(BarFactory) # Not BarFactory() @@ -1192,13 +1298,15 @@ RelatedFactory .. code-block:: python class CityFactory(factory.Factory): - FACTORY_FOR = City + class Meta: + model = City capital_of = None name = "Toronto" class CountryFactory(factory.Factory): - FACTORY_FOR = Country + class Meta: + model = Country lang = 'fr' capital_city = factory.RelatedFactory(CityFactory, 'capital_of', name="Paris") @@ -1240,7 +1348,7 @@ PostGeneration .. class:: PostGeneration(callable) -The :class:`PostGeneration` declaration performs actions once the target object +The :class:`PostGeneration` declaration performs actions once the model object has been generated. Its sole argument is a callable, that will be called once the base object has @@ -1260,7 +1368,8 @@ as ``callable(obj, create, extracted, **kwargs)``, where: .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User login = 'john' make_mbox = factory.PostGeneration( @@ -1280,7 +1389,8 @@ A decorator is also provided, decorating a single method accepting the same .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User login = 'john' @@ -1316,7 +1426,7 @@ PostGenerationMethodCall .. attribute:: method_name - The name of the method to call on the :attr:`~Factory.FACTORY_FOR` object + The name of the method to call on the :attr:`~FactoryOptions.model` object .. attribute:: args @@ -1340,7 +1450,8 @@ attribute like below: .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User username = 'user' password = factory.PostGenerationMethodCall('set_password', @@ -1390,7 +1501,8 @@ factory during instantiation. .. code-block:: python class UserFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = User + class Meta: + model = User username = 'user' password = factory.PostGenerationMethodCall('set_password', @@ -1404,7 +1516,8 @@ example, if we declared the ``password`` attribute like the following, .. code-block:: python class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User username = 'user' password = factory.PostGenerationMethodCall('set_password', '', 'sha1') @@ -1467,7 +1580,8 @@ Lightweight factory declaration # This is equivalent to: class UserFactory(factory.Factory): - FACTORY_FOR = User + class Meta: + model = User login = 'john' email = factory.LazyAttribute(lambda u: '%s@example.com' % u.login) @@ -1486,7 +1600,8 @@ Lightweight factory declaration # This is equivalent to: class UserFactory(factory.django.DjangoModelFactory): - FACTORY_FOR = models.User + class Meta: + model = models.User login = 'john' email = factory.LazyAttribute(lambda u: '%s@example.com' % u.login) |