ExtractedFeature¶

class database.models.ExtractedFeature(*args, **kwargs)¶

Bases: database.models.custom_base_model.CustomBaseModel

Content-based data extracted from a SymbolicMusicFile.

Extracted with a Software. Must be a feature of one and only one SymbolicMusicFile. Must be a instance of a FeatureType.

instance_of_feature¶: models.ForeignKey – A reference to a FeatureType of object that is the type of this ExtractedFeature

value¶: ArrayField(models.FloatField) – An array of the value(s) of this ExtractedFeature. One dimensional have values with an 1-Dimensional array

extracted_with¶: models.ForeignKey – A reference to the Software that was used to extract this ExtractedFeature

feature_of¶: models.ForeignKey – A reference to to the SymbolicMusicFile from which this ExtractedFeature was extracted.

Attributes Summary

`code`	Get the code of this ExtractedFeature
`description`	Get the description of this ExtractedFeature
`extracted_with`	Accessor to the related object on the forward side of a many-to-one or one-to-one (via ForwardOneToOneDescriptor subclass) relation.
`extracted_with_id`	A wrapper for a deferred-loading field.
`feature_of`	Accessor to the related object on the forward side of a many-to-one or one-to-one (via ForwardOneToOneDescriptor subclass) relation.
`feature_of_id`	A wrapper for a deferred-loading field.
`group`	Get the group of this ExtractedFeature
`id`	A wrapper for a deferred-loading field.
`instance_of_feature`	Accessor to the related object on the forward side of a many-to-one or one-to-one (via ForwardOneToOneDescriptor subclass) relation.
`instance_of_feature_id`	A wrapper for a deferred-loading field.
`is_histogram`	Check if this ExtractedFeature is a histogram
`name`	Get the name of this ExtractedFeature
`objects`
`researchcorpus_set`	Accessor to the related objects manager on the forward and reverse sides of a many-to-many relation.
`value`	A wrapper for a deferred-loading field.

Methods Summary

`clean`()	Check if length of value is the same as the declared dimensions
`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])
`save`(args, *kwargs)	Call the max_and_min() method of FeatureType after saving

Attributes Documentation

code¶: Get the code of this ExtractedFeature

description¶: Get the description of this ExtractedFeature

extracted_with

Accessor to the related object on the forward side of a many-to-one or one-to-one (via ForwardOneToOneDescriptor subclass) relation.

In the example:

class Child(Model):
    parent = ForeignKey(Parent, related_name='children')

Child.parent is a ForwardManyToOneDescriptor instance.

extracted_with_id¶: A wrapper for a deferred-loading field. When the value is read from this object the first time, the query is executed.

feature_of

Accessor to the related object on the forward side of a many-to-one or one-to-one (via ForwardOneToOneDescriptor subclass) relation.

In the example:

class Child(Model):
    parent = ForeignKey(Parent, related_name='children')

Child.parent is a ForwardManyToOneDescriptor instance.

feature_of_id¶: A wrapper for a deferred-loading field. When the value is read from this object the first time, the query is executed.

group¶: Get the group of this ExtractedFeature

id¶: A wrapper for a deferred-loading field. When the value is read from this object the first time, the query is executed.

instance_of_feature

Accessor to the related object on the forward side of a many-to-one or one-to-one (via ForwardOneToOneDescriptor subclass) relation.

In the example:

class Child(Model):
    parent = ForeignKey(Parent, related_name='children')

Child.parent is a ForwardManyToOneDescriptor instance.

instance_of_feature_id¶: A wrapper for a deferred-loading field. When the value is read from this object the first time, the query is executed.

is_histogram¶

Check if this ExtractedFeature is a histogram

A ExtractedFeatures are histograms if their dimensions are more than 1.

name¶: Get the name of this ExtractedFeature

objects = <django.db.models.manager.Manager object>¶

researchcorpus_set¶

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.toppings and Topping.pizzas are ManyToManyDescriptor instances.

Most of the implementation is delegated to a dynamically defined manager class built by create_forward_many_to_many_manager() defined below.

value: A wrapper for a deferred-loading field. When the value is read from this object the first time, the query is executed.

Methods Documentation

clean() → None¶: Check if length of value is the same as the declared dimensions

get_next_by_date_created(*, field=<django.db.models.fields.DateTimeField: date_created>, is_next=True, **kwargs)¶

get_next_by_date_updated(*, field=<django.db.models.fields.DateTimeField: date_updated>, is_next=True, **kwargs)¶

get_previous_by_date_created(*, field=<django.db.models.fields.DateTimeField: date_created>, is_next=False, **kwargs)¶

get_previous_by_date_updated(*, field=<django.db.models.fields.DateTimeField: date_updated>, is_next=False, **kwargs)¶

save(*args, **kwargs) → None¶: Call the max_and_min() method of FeatureType after saving