GenreAsInStyle¶
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class
database.models.GenreAsInStyle(*args, **kwargs)¶ Bases:
database.models.custom_base_model.CustomBaseModelRepresents a musical genre as in style (Classical, Blues, Pop)
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name¶ models.CharField – The name of this style
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musical_works¶ models.ManyToManyRel – References to the MusicalWorks of this style
Attributes Summary
idA wrapper for a deferred-loading field. musical_worksAccessor to the related objects manager on the forward and reverse sides of a many-to-many relation. nameA wrapper for a deferred-loading field. objectsMethods Summary
get_next_by_date_created(*[, field, is_next])get_next_by_date_updated(*[, field, is_next])get_previous_by_date_created(*[, field, is_next])get_previous_by_date_updated(*[, field, is_next])Attributes Documentation
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id¶ A wrapper for a deferred-loading field. When the value is read from this object the first time, the query is executed.
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musical_works Accessor to the related objects manager on the forward and reverse sides of a many-to-many relation.
In the example:
class Pizza(Model): toppings = ManyToManyField(Topping, related_name='pizzas')
Pizza.toppingsandTopping.pizzasareManyToManyDescriptorinstances.Most of the implementation is delegated to a dynamically defined manager class built by
create_forward_many_to_many_manager()defined below.
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name A wrapper for a deferred-loading field. When the value is read from this object the first time, the query is executed.
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objects= <django.db.models.manager.Manager object>¶
Methods Documentation
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get_next_by_date_created(*, field=<django.db.models.fields.DateTimeField: date_created>, is_next=True, **kwargs)¶
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get_next_by_date_updated(*, field=<django.db.models.fields.DateTimeField: date_updated>, is_next=True, **kwargs)¶
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get_previous_by_date_created(*, field=<django.db.models.fields.DateTimeField: date_created>, is_next=False, **kwargs)¶
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get_previous_by_date_updated(*, field=<django.db.models.fields.DateTimeField: date_updated>, is_next=False, **kwargs)¶
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