fiftyone.core.odm.dataset¶

Documents that track datasets and their sample schemas in the database.

Copyright 2017-2023, Voxel51, Inc.
voxel51.com

Classes:

`ColorScheme`(args, *kwargs)	Description of a color scheme in the App.
`DatasetAppConfig`(args, *kwargs)	Dataset-specific settings that customize how a dataset is visualized in the App.
`DatasetDocument`(args, *values)	Backing document for datasets.
`KeypointSkeleton`(args, *kwargs)	Description of a keypoint skeleton.
`SampleFieldDocument`(args, *kwargs)	Description of a sample field.
`SidebarGroupDocument`(args, *kwargs)	Description of a sidebar group in the App.

class fiftyone.core.odm.dataset.SampleFieldDocument(*args, **kwargs)¶

Bases: fiftyone.core.odm.embedded_document.EmbeddedDocument

Description of a sample field.

Attributes:

`STRICT`
`db_field`	A unicode string field.
`description`	A unicode string field.
`embedded_doc_type`	A unicode string field.
`field_names`	An ordered tuple of the public fields of this document.
`fields`	A list field that wraps a standard `Field`, allowing multiple instances of the field to be stored as a list in the database.
`ftype`	A unicode string field.
`info`	A dictionary field that wraps a standard Python dictionary.
`name`	A unicode string field.
`subfield`	A unicode string field.

Methods:

`clean`()	Hook for doing document level data cleaning (usually validation or assignment) before validation is run.
`clear_field`(field_name)	Clears the field from the document.
`copy`()	Returns a deep copy of the document.
`fancy_repr`([class_name, select_fields, …])	Generates a customizable string representation of the document.
`field_to_mongo`(field_name)
`field_to_python`(field_name, value)
`from_dict`(d[, extended])	Loads the document from a BSON/JSON dictionary.
`from_field`(field)	Creates a `SampleFieldDocument` for a field.
`from_json`(s)	Loads the document from a JSON string.
`get_field`(field_name)	Gets the field of the document.
`get_text_score`()	Get text score from text query
`has_field`(field_name)	Determines whether the document has a field of the given name.
`iter_fields`()	Returns an iterator over the `(name, value)` pairs of the public fields of the document.
`merge`(doc[, merge_lists, merge_dicts, overwrite])	Merges the contents of the given document into this document.
`set_field`(field_name, value[, create])	Sets the value of a field of the document.
`to_dict`([extended])	Serializes this document to a BSON/JSON dictionary.
`to_field`()	Creates the `fiftyone.core.fields.Field` specified by this document.
`to_json`([pretty_print])	Serializes the document to a JSON string.
`to_mongo`(args, *kwargs)	Return as SON data ready for use with MongoDB.
`validate`([clean])	Ensure that all fields’ values are valid and that required fields are present.

Classes:

my_metaclass

alias of mongoengine.base.metaclasses.DocumentMetaclass

name¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

ftype¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

embedded_doc_type¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

subfield¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

fields¶

A list field that wraps a standard Field, allowing multiple instances of the field to be stored as a list in the database.

If this field is not set, its default value is [].

Parameters

field (None) – an optional Field instance describing the type of the list elements
description (None) – an optional description
info (None) – an optional info dict

db_field¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

description¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

info¶

A dictionary field that wraps a standard Python dictionary.

If this field is not set, its default value is {}.

Parameters

field (None) – an optional Field instance describing the type of the values in the dict
description (None) – an optional description
info (None) – an optional info dict

to_field()¶

Creates the fiftyone.core.fields.Field specified by this document.

Returns: a fiftyone.core.fields.Field

classmethod from_field(field)¶

Creates a SampleFieldDocument for a field.

Parameters: field – a fiftyone.core.fields.Field instance
Returns: a SampleFieldDocument

STRICT = False¶

clean()¶

Hook for doing document level data cleaning (usually validation or assignment) before validation is run.

Any ValidationError raised by this method will not be associated with a particular field; it will have a special-case association with the field defined by NON_FIELD_ERRORS.

clear_field(field_name)¶

Clears the field from the document.

Parameters: field_name – the field name
Raises: ValueError – if the field does not exist

copy()¶

Returns a deep copy of the document.

Returns: a SerializableDocument

fancy_repr(class_name=None, select_fields=None, exclude_fields=None, **kwargs)¶

Generates a customizable string representation of the document.

Parameters

class_name (None) – optional class name to use
select_fields (None) – iterable of field names to restrict to
exclude_fields (None) – iterable of field names to exclude
**kwargs – additional key-value pairs to include in the string representation

Returns

a string representation of the document

property field_names¶: An ordered tuple of the public fields of this document.

field_to_mongo(field_name)¶

field_to_python(field_name, value)¶

classmethod from_dict(d, extended=False)¶

Loads the document from a BSON/JSON dictionary.

Parameters

d – a dictionary
extended (False) – whether the input dictionary may contain serialized extended JSON constructs

Returns

a SerializableDocument

classmethod from_json(s)¶

Loads the document from a JSON string.

Returns: a SerializableDocument

get_field(field_name)¶

Gets the field of the document.

Parameters: field_name – the field name
Returns: the field value
Raises: AttributeError – if the field does not exist

get_text_score()¶: Get text score from text query

has_field(field_name)¶

Determines whether the document has a field of the given name.

Parameters: field_name – the field name
Returns: True/False

iter_fields()¶

Returns an iterator over the (name, value) pairs of the public fields of the document.

Returns: an iterator that emits (name, value) tuples

merge(doc, merge_lists=True, merge_dicts=True, overwrite=True)¶

Merges the contents of the given document into this document.

Parameters

doc – a SerializableDocument of same type as this document
merge_lists (True) – whether to merge the elements of top-level list fields rather than treating the list as a single value
merge_dicts (True) – whether to recursively merge the contents of top-level dict fields rather than treating the dict as a single value
overwrite (True) – whether to overwrite (True) or skip (False) existing fields

my_metaclass¶

alias of mongoengine.base.metaclasses.DocumentMetaclass Methods:

mro

Return a type’s method resolution order.

set_field(field_name, value, create=True)¶

Sets the value of a field of the document.

Parameters

field_name – the field name
value – the field value
create (True) – whether to create the field if it does not exist

Raises

ValueError – if field_name is not an allowed field name or does not exist and create == False

to_dict(extended=False)¶

Serializes this document to a BSON/JSON dictionary.

Parameters: extended (False) – whether to serialize extended JSON constructs such as ObjectIDs, Binary, etc. into JSON format
Returns: a dict

to_json(pretty_print=False)¶

Serializes the document to a JSON string.

Parameters: pretty_print (False) – whether to render the JSON in human readable format with newlines and indentations
Returns: a JSON string

to_mongo(*args, **kwargs)¶: Return as SON data ready for use with MongoDB.

validate(clean=True)¶

Ensure that all fields’ values are valid and that required fields are present.

Raises ValidationError if any of the fields’ values are found to be invalid.

class fiftyone.core.odm.dataset.SidebarGroupDocument(*args, **kwargs)¶

Bases: fiftyone.core.odm.embedded_document.EmbeddedDocument

Description of a sidebar group in the App.

Parameters

name – the name of the sidebar group
paths ([]) – the list of field or embedded.field.name paths in the group
expanded (None) – whether this group should be expanded by default

Attributes:

`STRICT`
`expanded`	A boolean field.
`field_names`	An ordered tuple of the public fields of this document.
`name`	A unicode string field.
`paths`	A list field that wraps a standard `Field`, allowing multiple instances of the field to be stored as a list in the database.

Methods:

`clean`()	Hook for doing document level data cleaning (usually validation or assignment) before validation is run.
`clear_field`(field_name)	Clears the field from the document.
`copy`()	Returns a deep copy of the document.
`fancy_repr`([class_name, select_fields, …])	Generates a customizable string representation of the document.
`field_to_mongo`(field_name)
`field_to_python`(field_name, value)
`from_dict`(d[, extended])	Loads the document from a BSON/JSON dictionary.
`from_json`(s)	Loads the document from a JSON string.
`get_field`(field_name)	Gets the field of the document.
`get_text_score`()	Get text score from text query
`has_field`(field_name)	Determines whether the document has a field of the given name.
`iter_fields`()	Returns an iterator over the `(name, value)` pairs of the public fields of the document.
`merge`(doc[, merge_lists, merge_dicts, overwrite])	Merges the contents of the given document into this document.
`set_field`(field_name, value[, create])	Sets the value of a field of the document.
`to_dict`([extended])	Serializes this document to a BSON/JSON dictionary.
`to_json`([pretty_print])	Serializes the document to a JSON string.
`to_mongo`(args, *kwargs)	Return as SON data ready for use with MongoDB.
`validate`([clean])	Ensure that all fields’ values are valid and that required fields are present.

Classes:

my_metaclass

alias of mongoengine.base.metaclasses.DocumentMetaclass

name¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

paths¶

A list field that wraps a standard Field, allowing multiple instances of the field to be stored as a list in the database.

If this field is not set, its default value is [].

Parameters

field (None) – an optional Field instance describing the type of the list elements
description (None) – an optional description
info (None) – an optional info dict

expanded¶

A boolean field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

STRICT = False¶

clean()¶

Hook for doing document level data cleaning (usually validation or assignment) before validation is run.

Any ValidationError raised by this method will not be associated with a particular field; it will have a special-case association with the field defined by NON_FIELD_ERRORS.

clear_field(field_name)¶

Clears the field from the document.

Parameters: field_name – the field name
Raises: ValueError – if the field does not exist

copy()¶

Returns a deep copy of the document.

Returns: a SerializableDocument

fancy_repr(class_name=None, select_fields=None, exclude_fields=None, **kwargs)¶

Generates a customizable string representation of the document.

Parameters

class_name (None) – optional class name to use
select_fields (None) – iterable of field names to restrict to
exclude_fields (None) – iterable of field names to exclude
**kwargs – additional key-value pairs to include in the string representation

Returns

a string representation of the document

property field_names¶: An ordered tuple of the public fields of this document.

field_to_mongo(field_name)¶

field_to_python(field_name, value)¶

classmethod from_dict(d, extended=False)¶

Loads the document from a BSON/JSON dictionary.

Parameters

d – a dictionary
extended (False) – whether the input dictionary may contain serialized extended JSON constructs

Returns

a SerializableDocument

classmethod from_json(s)¶

Loads the document from a JSON string.

Returns: a SerializableDocument

get_field(field_name)¶

Gets the field of the document.

Parameters: field_name – the field name
Returns: the field value
Raises: AttributeError – if the field does not exist

get_text_score()¶: Get text score from text query

has_field(field_name)¶

Determines whether the document has a field of the given name.

Parameters: field_name – the field name
Returns: True/False

iter_fields()¶

Returns an iterator over the (name, value) pairs of the public fields of the document.

Returns: an iterator that emits (name, value) tuples

merge(doc, merge_lists=True, merge_dicts=True, overwrite=True)¶

Merges the contents of the given document into this document.

Parameters

doc – a SerializableDocument of same type as this document
merge_lists (True) – whether to merge the elements of top-level list fields rather than treating the list as a single value
merge_dicts (True) – whether to recursively merge the contents of top-level dict fields rather than treating the dict as a single value
overwrite (True) – whether to overwrite (True) or skip (False) existing fields

my_metaclass¶

alias of mongoengine.base.metaclasses.DocumentMetaclass Methods:

mro

Return a type’s method resolution order.

set_field(field_name, value, create=True)¶

Sets the value of a field of the document.

Parameters

field_name – the field name
value – the field value
create (True) – whether to create the field if it does not exist

Raises

ValueError – if field_name is not an allowed field name or does not exist and create == False

to_dict(extended=False)¶

Serializes this document to a BSON/JSON dictionary.

Parameters: extended (False) – whether to serialize extended JSON constructs such as ObjectIDs, Binary, etc. into JSON format
Returns: a dict

to_json(pretty_print=False)¶

Serializes the document to a JSON string.

Parameters: pretty_print (False) – whether to render the JSON in human readable format with newlines and indentations
Returns: a JSON string

to_mongo(*args, **kwargs)¶: Return as SON data ready for use with MongoDB.

validate(clean=True)¶

Ensure that all fields’ values are valid and that required fields are present.

Raises ValidationError if any of the fields’ values are found to be invalid.

class fiftyone.core.odm.dataset.ColorScheme(*args, **kwargs)¶

Bases: fiftyone.core.odm.embedded_document.EmbeddedDocument

Description of a color scheme in the App.

Example:

import fiftyone as fo
import fiftyone.zoo as foz

dataset = foz.load_zoo_dataset("quickstart")

# Store a custom color scheme for a dataset
dataset.app_config.color_scheme = fo.ColorScheme(
    color_pool=["#ff0000", "#00ff00", "#0000ff", "pink", "yellowgreen"],
    fields=[
        {
            "path": "ground_truth",
            "fieldColor": "#ff00ff",
            "colorByAttribute": "label",
            "valueColors": [{"value": "dog", "color": "yellow"}],
        }
    ]
)
dataset.save()

Parameters

color_pool (None) – an optional list of colors to use as a color pool for this dataset
fields (None) –
an optional list of per-field custom colors. Each element should be a dict with the following keys:
- path (required): the fully-qualified path to the field you’re customizing
- fieldColor (optional): a color to assign to the field in the App sidebar
- colorByAttribute (optional): the attribute to use to assign per-value colors. Only applicable when the field is an embedded document
- valueColors (optional): a list of dicts specifying colors to use for individual values of this field

Attributes:

`STRICT`
`color_pool`	A list field that wraps a standard `Field`, allowing multiple instances of the field to be stored as a list in the database.
`field_names`	An ordered tuple of the public fields of this document.
`fields`	A list field that wraps a standard `Field`, allowing multiple instances of the field to be stored as a list in the database.

Methods:

`clean`()	Hook for doing document level data cleaning (usually validation or assignment) before validation is run.
`clear_field`(field_name)	Clears the field from the document.
`copy`()	Returns a deep copy of the document.
`fancy_repr`([class_name, select_fields, …])	Generates a customizable string representation of the document.
`field_to_mongo`(field_name)
`field_to_python`(field_name, value)
`from_dict`(d[, extended])	Loads the document from a BSON/JSON dictionary.
`from_json`(s)	Loads the document from a JSON string.
`get_field`(field_name)	Gets the field of the document.
`get_text_score`()	Get text score from text query
`has_field`(field_name)	Determines whether the document has a field of the given name.
`iter_fields`()	Returns an iterator over the `(name, value)` pairs of the public fields of the document.
`merge`(doc[, merge_lists, merge_dicts, overwrite])	Merges the contents of the given document into this document.
`set_field`(field_name, value[, create])	Sets the value of a field of the document.
`to_dict`([extended])	Serializes this document to a BSON/JSON dictionary.
`to_json`([pretty_print])	Serializes the document to a JSON string.
`to_mongo`(args, *kwargs)	Return as SON data ready for use with MongoDB.
`validate`([clean])	Ensure that all fields’ values are valid and that required fields are present.

Classes:

my_metaclass

alias of mongoengine.base.metaclasses.DocumentMetaclass

color_pool¶

A list field that wraps a standard Field, allowing multiple instances of the field to be stored as a list in the database.

If this field is not set, its default value is [].

Parameters

field (None) – an optional Field instance describing the type of the list elements
description (None) – an optional description
info (None) – an optional info dict

fields¶

A list field that wraps a standard Field, allowing multiple instances of the field to be stored as a list in the database.

If this field is not set, its default value is [].

Parameters

field (None) – an optional Field instance describing the type of the list elements
description (None) – an optional description
info (None) – an optional info dict

STRICT = False¶

clean()¶

Hook for doing document level data cleaning (usually validation or assignment) before validation is run.

Any ValidationError raised by this method will not be associated with a particular field; it will have a special-case association with the field defined by NON_FIELD_ERRORS.

clear_field(field_name)¶

Clears the field from the document.

Parameters: field_name – the field name
Raises: ValueError – if the field does not exist

copy()¶

Returns a deep copy of the document.

Returns: a SerializableDocument

fancy_repr(class_name=None, select_fields=None, exclude_fields=None, **kwargs)¶

Generates a customizable string representation of the document.

Parameters

class_name (None) – optional class name to use
select_fields (None) – iterable of field names to restrict to
exclude_fields (None) – iterable of field names to exclude
**kwargs – additional key-value pairs to include in the string representation

Returns

a string representation of the document

property field_names¶: An ordered tuple of the public fields of this document.

field_to_mongo(field_name)¶

field_to_python(field_name, value)¶

classmethod from_dict(d, extended=False)¶

Loads the document from a BSON/JSON dictionary.

Parameters

d – a dictionary
extended (False) – whether the input dictionary may contain serialized extended JSON constructs

Returns

a SerializableDocument

classmethod from_json(s)¶

Loads the document from a JSON string.

Returns: a SerializableDocument

get_field(field_name)¶

Gets the field of the document.

Parameters: field_name – the field name
Returns: the field value
Raises: AttributeError – if the field does not exist

get_text_score()¶: Get text score from text query

has_field(field_name)¶

Determines whether the document has a field of the given name.

Parameters: field_name – the field name
Returns: True/False

iter_fields()¶

Returns an iterator over the (name, value) pairs of the public fields of the document.

Returns: an iterator that emits (name, value) tuples

merge(doc, merge_lists=True, merge_dicts=True, overwrite=True)¶

Merges the contents of the given document into this document.

Parameters

doc – a SerializableDocument of same type as this document
merge_lists (True) – whether to merge the elements of top-level list fields rather than treating the list as a single value
merge_dicts (True) – whether to recursively merge the contents of top-level dict fields rather than treating the dict as a single value
overwrite (True) – whether to overwrite (True) or skip (False) existing fields

my_metaclass¶

alias of mongoengine.base.metaclasses.DocumentMetaclass Methods:

mro

Return a type’s method resolution order.

set_field(field_name, value, create=True)¶

Sets the value of a field of the document.

Parameters

field_name – the field name
value – the field value
create (True) – whether to create the field if it does not exist

Raises

ValueError – if field_name is not an allowed field name or does not exist and create == False

to_dict(extended=False)¶

Serializes this document to a BSON/JSON dictionary.

Parameters: extended (False) – whether to serialize extended JSON constructs such as ObjectIDs, Binary, etc. into JSON format
Returns: a dict

to_json(pretty_print=False)¶

Serializes the document to a JSON string.

Parameters: pretty_print (False) – whether to render the JSON in human readable format with newlines and indentations
Returns: a JSON string

to_mongo(*args, **kwargs)¶: Return as SON data ready for use with MongoDB.

validate(clean=True)¶

Ensure that all fields’ values are valid and that required fields are present.

Raises ValidationError if any of the fields’ values are found to be invalid.

class fiftyone.core.odm.dataset.KeypointSkeleton(*args, **kwargs)¶

Bases: fiftyone.core.odm.embedded_document.EmbeddedDocument

Description of a keypoint skeleton.

Keypoint skeletons can be associated with fiftyone.core.labels.Keypoint or fiftyone.core.labels.Keypoints fields whose points attributes all contain a fixed number of semantically ordered points.

The edges argument contains lists of integer indexes that define the connectivity of the points in the skeleton, and the optional labels argument defines the label strings for each node in the skeleton.

For example, the skeleton below is defined by edges between the following nodes:

left hand <-> left shoulder <-> right shoulder <-> right hand
left eye <-> right eye <-> mouth

Example:

import fiftyone as fo

# A skeleton for an object made of 7 points
skeleton = fo.KeypointSkeleton(
    labels=[
        "left hand" "left shoulder", "right shoulder", "right hand",
        "left eye", "right eye", "mouth",
    ],
    edges=[[0, 1, 2, 3], [4, 5, 6]],
)

Parameters

labels (None) – an optional list of label strings for each node
edges – a list of lists of integer indexes defining the connectivity between nodes

Attributes:

`STRICT`
`edges`	A list field that wraps a standard `Field`, allowing multiple instances of the field to be stored as a list in the database.
`field_names`	An ordered tuple of the public fields of this document.
`labels`	A list field that wraps a standard `Field`, allowing multiple instances of the field to be stored as a list in the database.

Methods:

`clean`()	Hook for doing document level data cleaning (usually validation or assignment) before validation is run.
`clear_field`(field_name)	Clears the field from the document.
`copy`()	Returns a deep copy of the document.
`fancy_repr`([class_name, select_fields, …])	Generates a customizable string representation of the document.
`field_to_mongo`(field_name)
`field_to_python`(field_name, value)
`from_dict`(d[, extended])	Loads the document from a BSON/JSON dictionary.
`from_json`(s)	Loads the document from a JSON string.
`get_field`(field_name)	Gets the field of the document.
`get_text_score`()	Get text score from text query
`has_field`(field_name)	Determines whether the document has a field of the given name.
`iter_fields`()	Returns an iterator over the `(name, value)` pairs of the public fields of the document.
`merge`(doc[, merge_lists, merge_dicts, overwrite])	Merges the contents of the given document into this document.
`set_field`(field_name, value[, create])	Sets the value of a field of the document.
`to_dict`([extended])	Serializes this document to a BSON/JSON dictionary.
`to_json`([pretty_print])	Serializes the document to a JSON string.
`to_mongo`(args, *kwargs)	Return as SON data ready for use with MongoDB.
`validate`([clean])	Ensure that all fields’ values are valid and that required fields are present.

Classes:

my_metaclass

alias of mongoengine.base.metaclasses.DocumentMetaclass

labels¶

A list field that wraps a standard Field, allowing multiple instances of the field to be stored as a list in the database.

If this field is not set, its default value is [].

Parameters

field (None) – an optional Field instance describing the type of the list elements
description (None) – an optional description
info (None) – an optional info dict

edges¶

A list field that wraps a standard Field, allowing multiple instances of the field to be stored as a list in the database.

If this field is not set, its default value is [].

Parameters

field (None) – an optional Field instance describing the type of the list elements
description (None) – an optional description
info (None) – an optional info dict

STRICT = False¶

clean()¶

Hook for doing document level data cleaning (usually validation or assignment) before validation is run.

Any ValidationError raised by this method will not be associated with a particular field; it will have a special-case association with the field defined by NON_FIELD_ERRORS.

clear_field(field_name)¶

Clears the field from the document.

Parameters: field_name – the field name
Raises: ValueError – if the field does not exist

copy()¶

Returns a deep copy of the document.

Returns: a SerializableDocument

fancy_repr(class_name=None, select_fields=None, exclude_fields=None, **kwargs)¶

Generates a customizable string representation of the document.

Parameters

class_name (None) – optional class name to use
select_fields (None) – iterable of field names to restrict to
exclude_fields (None) – iterable of field names to exclude
**kwargs – additional key-value pairs to include in the string representation

Returns

a string representation of the document

property field_names¶: An ordered tuple of the public fields of this document.

field_to_mongo(field_name)¶

field_to_python(field_name, value)¶

classmethod from_dict(d, extended=False)¶

Loads the document from a BSON/JSON dictionary.

Parameters

d – a dictionary
extended (False) – whether the input dictionary may contain serialized extended JSON constructs

Returns

a SerializableDocument

classmethod from_json(s)¶

Loads the document from a JSON string.

Returns: a SerializableDocument

get_field(field_name)¶

Gets the field of the document.

Parameters: field_name – the field name
Returns: the field value
Raises: AttributeError – if the field does not exist

get_text_score()¶: Get text score from text query

has_field(field_name)¶

Determines whether the document has a field of the given name.

Parameters: field_name – the field name
Returns: True/False

iter_fields()¶

Returns an iterator over the (name, value) pairs of the public fields of the document.

Returns: an iterator that emits (name, value) tuples

merge(doc, merge_lists=True, merge_dicts=True, overwrite=True)¶

Merges the contents of the given document into this document.

Parameters

doc – a SerializableDocument of same type as this document
merge_lists (True) – whether to merge the elements of top-level list fields rather than treating the list as a single value
merge_dicts (True) – whether to recursively merge the contents of top-level dict fields rather than treating the dict as a single value
overwrite (True) – whether to overwrite (True) or skip (False) existing fields

my_metaclass¶

alias of mongoengine.base.metaclasses.DocumentMetaclass Methods:

mro

Return a type’s method resolution order.

set_field(field_name, value, create=True)¶

Sets the value of a field of the document.

Parameters

field_name – the field name
value – the field value
create (True) – whether to create the field if it does not exist

Raises

ValueError – if field_name is not an allowed field name or does not exist and create == False

to_dict(extended=False)¶

Serializes this document to a BSON/JSON dictionary.

Parameters: extended (False) – whether to serialize extended JSON constructs such as ObjectIDs, Binary, etc. into JSON format
Returns: a dict

to_json(pretty_print=False)¶

Serializes the document to a JSON string.

Parameters: pretty_print (False) – whether to render the JSON in human readable format with newlines and indentations
Returns: a JSON string

to_mongo(*args, **kwargs)¶: Return as SON data ready for use with MongoDB.

validate(clean=True)¶

Ensure that all fields’ values are valid and that required fields are present.

Raises ValidationError if any of the fields’ values are found to be invalid.

class fiftyone.core.odm.dataset.DatasetAppConfig(*args, **kwargs)¶

Bases: fiftyone.core.odm.embedded_document.EmbeddedDocument

Dataset-specific settings that customize how a dataset is visualized in the App.

Parameters

media_fields (["filepath"]) – the list of sample fields that contain media and should be available to choose from the App’s settings menus
grid_media_field ("filepath") – the default sample field from which to serve media in the App’s grid view
modal_media_field ("filepath") – the default sample field from which to serve media in the App’s modal view
sidebar_mode (None) – an optional default mode for the App sidebar. Supported values are ("fast", "all", "best")
sidebar_groups (None) – an optional list of SidebarGroupDocument describing sidebar groups to use in the App
color_scheme (None) – an optional ColorScheme for the dataset
plugins ({}) –
an optional dict mapping plugin names to plugin configuration dicts. Builtin plugins include:
- "map": See the map plugin docs for supported options
- "point-cloud": See the 3D visualizer docs for supported options

Attributes:

`STRICT`
`color_scheme`	A field that stores instances of a given type of `fiftyone.core.odm.BaseEmbeddedDocument` object.
`field_names`	An ordered tuple of the public fields of this document.
`grid_media_field`	A unicode string field.
`media_fields`	A list field that wraps a standard `Field`, allowing multiple instances of the field to be stored as a list in the database.
`modal_media_field`	A unicode string field.
`plugins`	A dictionary field that wraps a standard Python dictionary.
`sidebar_groups`	A list field that wraps a standard `Field`, allowing multiple instances of the field to be stored as a list in the database.
`sidebar_mode`	A unicode string field.

Methods:

`clean`()	Hook for doing document level data cleaning (usually validation or assignment) before validation is run.
`clear_field`(field_name)	Clears the field from the document.
`copy`()	Returns a deep copy of the document.
`default_sidebar_groups`(sample_collection)	Generates the default `sidebar_groups` for the given collection.
`fancy_repr`([class_name, select_fields, …])	Generates a customizable string representation of the document.
`field_to_mongo`(field_name)
`field_to_python`(field_name, value)
`from_dict`(d[, extended])	Loads the document from a BSON/JSON dictionary.
`from_json`(s)	Loads the document from a JSON string.
`get_field`(field_name)	Gets the field of the document.
`get_text_score`()	Get text score from text query
`has_field`(field_name)	Determines whether the document has a field of the given name.
`is_custom`()	Determines whether this app config differs from the default one.
`iter_fields`()	Returns an iterator over the `(name, value)` pairs of the public fields of the document.
`merge`(doc[, merge_lists, merge_dicts, overwrite])	Merges the contents of the given document into this document.
`set_field`(field_name, value[, create])	Sets the value of a field of the document.
`to_dict`([extended])	Serializes this document to a BSON/JSON dictionary.
`to_json`([pretty_print])	Serializes the document to a JSON string.
`to_mongo`(args, *kwargs)	Return as SON data ready for use with MongoDB.
`validate`([clean])	Ensure that all fields’ values are valid and that required fields are present.

Classes:

my_metaclass

alias of mongoengine.base.metaclasses.DocumentMetaclass

media_fields¶

A list field that wraps a standard Field, allowing multiple instances of the field to be stored as a list in the database.

If this field is not set, its default value is [].

Parameters

field (None) – an optional Field instance describing the type of the list elements
description (None) – an optional description
info (None) – an optional info dict

grid_media_field¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

modal_media_field¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

sidebar_mode¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

sidebar_groups¶

A list field that wraps a standard Field, allowing multiple instances of the field to be stored as a list in the database.

If this field is not set, its default value is [].

Parameters

field (None) – an optional Field instance describing the type of the list elements
description (None) – an optional description
info (None) – an optional info dict

color_scheme¶

A field that stores instances of a given type of fiftyone.core.odm.BaseEmbeddedDocument object.

Parameters

document_type – the fiftyone.core.odm.BaseEmbeddedDocument type stored in this field
description (None) – an optional description
info (None) – an optional info dict

plugins¶

A dictionary field that wraps a standard Python dictionary.

If this field is not set, its default value is {}.

Parameters

field (None) – an optional Field instance describing the type of the values in the dict
description (None) – an optional description
info (None) – an optional info dict

static default_sidebar_groups(sample_collection)¶

Generates the default sidebar_groups for the given collection.

Examples:

import fiftyone as fo
import fiftyone.zoo as foz

dataset = foz.load_zoo_dataset("quickstart")

sidebar_groups = fo.DatasetAppConfig.default_sidebar_groups(dataset)
dataset.app_config.sidebar_groups = sidebar_groups
print(dataset.app_config)

Parameters: sample_collection – a fiftyone.core.collections.SampleCollection
Returns: a list of SidebarGroupDocument instances

is_custom()¶

Determines whether this app config differs from the default one.

Returns: True/False

STRICT = False¶

clean()¶

Hook for doing document level data cleaning (usually validation or assignment) before validation is run.

Any ValidationError raised by this method will not be associated with a particular field; it will have a special-case association with the field defined by NON_FIELD_ERRORS.

clear_field(field_name)¶

Clears the field from the document.

Parameters: field_name – the field name
Raises: ValueError – if the field does not exist

copy()¶

Returns a deep copy of the document.

Returns: a SerializableDocument

fancy_repr(class_name=None, select_fields=None, exclude_fields=None, **kwargs)¶

Generates a customizable string representation of the document.

Parameters

class_name (None) – optional class name to use
select_fields (None) – iterable of field names to restrict to
exclude_fields (None) – iterable of field names to exclude
**kwargs – additional key-value pairs to include in the string representation

Returns

a string representation of the document

property field_names¶: An ordered tuple of the public fields of this document.

field_to_mongo(field_name)¶

field_to_python(field_name, value)¶

classmethod from_dict(d, extended=False)¶

Loads the document from a BSON/JSON dictionary.

Parameters

d – a dictionary
extended (False) – whether the input dictionary may contain serialized extended JSON constructs

Returns

a SerializableDocument

classmethod from_json(s)¶

Loads the document from a JSON string.

Returns: a SerializableDocument

get_field(field_name)¶

Gets the field of the document.

Parameters: field_name – the field name
Returns: the field value
Raises: AttributeError – if the field does not exist

get_text_score()¶: Get text score from text query

has_field(field_name)¶

Determines whether the document has a field of the given name.

Parameters: field_name – the field name
Returns: True/False

iter_fields()¶

Returns an iterator over the (name, value) pairs of the public fields of the document.

Returns: an iterator that emits (name, value) tuples

merge(doc, merge_lists=True, merge_dicts=True, overwrite=True)¶

Merges the contents of the given document into this document.

Parameters

doc – a SerializableDocument of same type as this document
merge_lists (True) – whether to merge the elements of top-level list fields rather than treating the list as a single value
merge_dicts (True) – whether to recursively merge the contents of top-level dict fields rather than treating the dict as a single value
overwrite (True) – whether to overwrite (True) or skip (False) existing fields

my_metaclass¶

alias of mongoengine.base.metaclasses.DocumentMetaclass Methods:

mro

Return a type’s method resolution order.

set_field(field_name, value, create=True)¶

Sets the value of a field of the document.

Parameters

field_name – the field name
value – the field value
create (True) – whether to create the field if it does not exist

Raises

ValueError – if field_name is not an allowed field name or does not exist and create == False

to_dict(extended=False)¶

Serializes this document to a BSON/JSON dictionary.

Parameters: extended (False) – whether to serialize extended JSON constructs such as ObjectIDs, Binary, etc. into JSON format
Returns: a dict

to_json(pretty_print=False)¶

Serializes the document to a JSON string.

Parameters: pretty_print (False) – whether to render the JSON in human readable format with newlines and indentations
Returns: a JSON string

to_mongo(*args, **kwargs)¶: Return as SON data ready for use with MongoDB.

validate(clean=True)¶

Ensure that all fields’ values are valid and that required fields are present.

Raises ValidationError if any of the fields’ values are found to be invalid.

class fiftyone.core.odm.dataset.DatasetDocument(*args, **values)¶

Bases: fiftyone.core.odm.document.Document

Backing document for datasets.

Miscellaneous:

`DoesNotExist`
`MultipleObjectsReturned`

Attributes:

`STRICT`
`annotation_runs`	A dictionary field that wraps a standard Python dictionary.
`app_config`	A field that stores instances of a given type of `fiftyone.core.odm.BaseEmbeddedDocument` object.
`brain_methods`	A dictionary field that wraps a standard Python dictionary.
`classes`	A dictionary field that wraps a standard Python dictionary.
`created_at`	A datetime field.
`default_classes`	A `ListField` that stores class label strings.
`default_group_slice`	A unicode string field.
`default_mask_targets`	A `DictField` that stores mapping between integer keys or RGB string hex keys and string targets.
`default_skeleton`	A field that stores instances of a given type of `fiftyone.core.odm.BaseEmbeddedDocument` object.
`description`	A unicode string field.
`evaluations`	A dictionary field that wraps a standard Python dictionary.
`field_names`	An ordered tuple of the public fields of this document.
`frame_collection_name`	A unicode string field.
`frame_fields`	A field that stores a list of a given type of `fiftyone.core.odm.BaseEmbeddedDocument` objects.
`group_field`	A unicode string field.
`group_media_types`	A dictionary field that wraps a standard Python dictionary.
`id`	A field wrapper around MongoDB’s ObjectIds.
`in_db`	Whether the document has been inserted into the database.
`info`	A dictionary field that wraps a standard Python dictionary.
`last_loaded_at`	A datetime field.
`mask_targets`	A dictionary field that wraps a standard Python dictionary.
`media_type`	A unicode string field.
`name`	A unicode string field.
`objects`([q_obj])
`persistent`	A boolean field.
`pk`	Get the primary key.
`sample_collection_name`	A unicode string field.
`sample_fields`	A field that stores a list of a given type of `fiftyone.core.odm.BaseEmbeddedDocument` objects.
`saved_views`	A list field that wraps a standard `Field`, allowing multiple instances of the field to be stored as a list in the database.
`skeletons`	A dictionary field that wraps a standard Python dictionary.
`slug`	A unicode string field.
`tags`	A list field that wraps a standard `Field`, allowing multiple instances of the field to be stored as a list in the database.
`version`	A unicode string field.

Methods:

`cascade_save`(**kwargs)	Recursively save any references and generic references on the document.
`clean`()	Hook for doing document level data cleaning (usually validation or assignment) before validation is run.
`clear_field`(field_name)	Clears the field from the document.
`compare_indexes`()	Compares the indexes defined in MongoEngine with the ones existing in the database.
`copy`()	Returns a deep copy of the document.
`create_index`(keys[, background])	Creates the given indexes if required.
`delete`([signal_kwargs])	Delete the `Document` from the database.
`drop_collection`()	Drops the entire collection associated with this `Document` type from the database.
`ensure_index`(key_or_list[, background])	Ensure that the given indexes are in place.
`ensure_indexes`()	Checks the document meta data and ensures all the indexes exist.
`fancy_repr`([class_name, select_fields, …])	Generates a customizable string representation of the document.
`field_to_mongo`(field_name)
`field_to_python`(field_name, value)
`from_dict`(d[, extended])	Loads the document from a BSON/JSON dictionary.
`from_json`(s)	Loads the document from a JSON string.
`get_annotation_runs`()
`get_brain_methods`()
`get_evaluations`()
`get_field`(field_name)	Gets the field of the document.
`get_saved_views`()
`get_text_score`()	Get text score from text query
`has_field`(field_name)	Determines whether the document has a field of the given name.
`iter_fields`()	Returns an iterator over the `(name, value)` pairs of the public fields of the document.
`list_indexes`()	Lists all indexes that should be created for the Document collection.
`merge`(doc[, merge_lists, merge_dicts, overwrite])	Merges the contents of the given document into this document.
`modify`([query])	Perform an atomic update of the document in the database and reload the document object using updated version.
`register_delete_rule`(document_cls, …)	This method registers the delete rules to apply when removing this object.
`reload`(fields, *kwargs)	Reloads the document from the database.
`save`([upsert, validate, clean, safe])	Saves the document to the database.
`select_related`([max_depth])	Handles dereferencing of `DBRef` objects to a maximum depth in order to cut down the number queries to mongodb.
`set_field`(field_name, value[, create])	Sets the value of a field of the document.
`switch_collection`(collection_name[, …])	Temporarily switch the collection for a document instance.
`switch_db`(db_alias[, keep_created])	Temporarily switch the database for a document instance.
`to_dbref`()	Returns an instance of `DBRef` useful in __raw__ queries.
`to_dict`(*args[, no_dereference])	Serializes this document to a BSON/JSON dictionary.
`to_json`([pretty_print])	Serializes the document to a JSON string.
`to_mongo`(args, *kwargs)	Return as SON data ready for use with MongoDB.
`update`(**kwargs)	Performs an update on the `Document` A convenience wrapper to `update()`.
`validate`([clean])	Ensure that all fields’ values are valid and that required fields are present.

Classes:

my_metaclass

alias of mongoengine.base.metaclasses.TopLevelDocumentMetaclass

name¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

slug¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

version¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

created_at¶

A datetime field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

last_loaded_at¶

A datetime field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

sample_collection_name¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

frame_collection_name¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

persistent¶

A boolean field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

media_type¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

group_field¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

group_media_types¶

A dictionary field that wraps a standard Python dictionary.

If this field is not set, its default value is {}.

Parameters

field (None) – an optional Field instance describing the type of the values in the dict
description (None) – an optional description
info (None) – an optional info dict

default_group_slice¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

tags¶

A list field that wraps a standard Field, allowing multiple instances of the field to be stored as a list in the database.

If this field is not set, its default value is [].

Parameters

field (None) – an optional Field instance describing the type of the list elements
description (None) – an optional description
info (None) – an optional info dict

description¶

A unicode string field.

Parameters

description (None) – an optional description
info (None) – an optional info dict

info¶

A dictionary field that wraps a standard Python dictionary.

If this field is not set, its default value is {}.

Parameters

field (None) – an optional Field instance describing the type of the values in the dict
description (None) – an optional description
info (None) – an optional info dict

app_config¶

A field that stores instances of a given type of fiftyone.core.odm.BaseEmbeddedDocument object.

Parameters

document_type – the fiftyone.core.odm.BaseEmbeddedDocument type stored in this field
description (None) – an optional description
info (None) – an optional info dict

classes¶

A dictionary field that wraps a standard Python dictionary.

If this field is not set, its default value is {}.

Parameters

field (None) – an optional Field instance describing the type of the values in the dict
description (None) – an optional description
info (None) – an optional info dict

default_classes¶

A ListField that stores class label strings.

If this field is not set, its default value is [].

Parameters

description (None) – an optional description
info (None) – an optional info dict

mask_targets¶

A dictionary field that wraps a standard Python dictionary.

If this field is not set, its default value is {}.

Parameters

field (None) – an optional Field instance describing the type of the values in the dict
description (None) – an optional description
info (None) – an optional info dict

default_mask_targets¶

A DictField that stores mapping between integer keys or RGB string hex keys and string targets.

If this field is not set, its default value is {}.

Parameters

description (None) – an optional description
info (None) – an optional info dict

skeletons¶

A dictionary field that wraps a standard Python dictionary.

If this field is not set, its default value is {}.

Parameters

field (None) – an optional Field instance describing the type of the values in the dict
description (None) – an optional description
info (None) – an optional info dict

default_skeleton¶

A field that stores instances of a given type of fiftyone.core.odm.BaseEmbeddedDocument object.

Parameters

document_type – the fiftyone.core.odm.BaseEmbeddedDocument type stored in this field
description (None) – an optional description
info (None) – an optional info dict

sample_fields¶

A field that stores a list of a given type of fiftyone.core.odm.BaseEmbeddedDocument objects.

Parameters

document_type – the fiftyone.core.odm.BaseEmbeddedDocument type stored in this field
description (None) – an optional description
info (None) – an optional info dict

frame_fields¶

A field that stores a list of a given type of fiftyone.core.odm.BaseEmbeddedDocument objects.

Parameters

document_type – the fiftyone.core.odm.BaseEmbeddedDocument type stored in this field
description (None) – an optional description
info (None) – an optional info dict

saved_views¶

A list field that wraps a standard Field, allowing multiple instances of the field to be stored as a list in the database.

If this field is not set, its default value is [].

Parameters

field (None) – an optional Field instance describing the type of the list elements
description (None) – an optional description
info (None) – an optional info dict

annotation_runs¶

A dictionary field that wraps a standard Python dictionary.

If this field is not set, its default value is {}.

Parameters

field (None) – an optional Field instance describing the type of the values in the dict
description (None) – an optional description
info (None) – an optional info dict

brain_methods¶

A dictionary field that wraps a standard Python dictionary.

If this field is not set, its default value is {}.

Parameters

field (None) – an optional Field instance describing the type of the values in the dict
description (None) – an optional description
info (None) – an optional info dict

evaluations¶

A dictionary field that wraps a standard Python dictionary.

If this field is not set, its default value is {}.

Parameters

field (None) – an optional Field instance describing the type of the values in the dict
description (None) – an optional description
info (None) – an optional info dict

get_saved_views()¶

get_annotation_runs()¶

get_brain_methods()¶

get_evaluations()¶

to_dict(*args, no_dereference=False, **kwargs)¶

Serializes this document to a BSON/JSON dictionary.

Parameters: extended (False) – whether to serialize extended JSON constructs such as ObjectIDs, Binary, etc. into JSON format
Returns: a dict

exception DoesNotExist¶

Bases: mongoengine.errors.DoesNotExist

args¶

with_traceback()¶: Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

exception MultipleObjectsReturned¶

Bases: mongoengine.errors.MultipleObjectsReturned

args¶

with_traceback()¶: Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

STRICT = False¶

cascade_save(**kwargs)¶: Recursively save any references and generic references on the document.

clean()¶

Hook for doing document level data cleaning (usually validation or assignment) before validation is run.

Any ValidationError raised by this method will not be associated with a particular field; it will have a special-case association with the field defined by NON_FIELD_ERRORS.

clear_field(field_name)¶

Clears the field from the document.

Parameters: field_name – the field name
Raises: ValueError – if the field does not exist

classmethod compare_indexes()¶: Compares the indexes defined in MongoEngine with the ones existing in the database. Returns any missing/extra indexes.

copy()¶

Returns a deep copy of the document.

Returns: a SerializableDocument

classmethod create_index(keys, background=False, **kwargs)¶

Creates the given indexes if required.

Parameters

keys – a single index key or a list of index keys (to construct a multi-field index); keys may be prefixed with a + or a - to determine the index ordering
background – Allows index creation in the background

delete(signal_kwargs=None, **write_concern)¶

Delete the Document from the database. This will only take effect if the document has been previously saved.

Parameters

signal_kwargs – (optional) kwargs dictionary to be passed to the signal calls.
write_concern – Extra keyword arguments are passed down which will be used as options for the resultant getLastError command. For example, save(..., w: 2, fsync: True) will wait until at least two servers have recorded the write and will force an fsync on the primary server.

classmethod drop_collection()¶

Drops the entire collection associated with this Document type from the database.

Raises OperationError if the document has no collection set (i.g. if it is abstract)

classmethod ensure_index(key_or_list, background=False, **kwargs)¶

Ensure that the given indexes are in place. Deprecated in favour of create_index.

Parameters

key_or_list – a single index key or a list of index keys (to construct a multi-field index); keys may be prefixed with a + or a - to determine the index ordering
background – Allows index creation in the background

classmethod ensure_indexes()¶

Checks the document meta data and ensures all the indexes exist.

Global defaults can be set in the meta - see Defining documents

By default, this will get called automatically upon first interaction with the Document collection (query, save, etc) so unless you disabled auto_create_index, you shouldn’t have to call this manually.

Note

You can disable automatic index creation by setting auto_create_index to False in the documents meta data

fancy_repr(class_name=None, select_fields=None, exclude_fields=None, **kwargs)¶

Generates a customizable string representation of the document.

Parameters

class_name (None) – optional class name to use
select_fields (None) – iterable of field names to restrict to
exclude_fields (None) – iterable of field names to exclude
**kwargs – additional key-value pairs to include in the string representation

Returns

a string representation of the document

property field_names¶: An ordered tuple of the public fields of this document.

field_to_mongo(field_name)¶

field_to_python(field_name, value)¶

classmethod from_dict(d, extended=False)¶

Loads the document from a BSON/JSON dictionary.

Parameters

d – a dictionary
extended (False) – whether the input dictionary may contain serialized extended JSON constructs

Returns

a SerializableDocument

classmethod from_json(s)¶

Loads the document from a JSON string.

Returns: a SerializableDocument

get_field(field_name)¶

Gets the field of the document.

Parameters: field_name – the field name
Returns: the field value
Raises: AttributeError – if the field does not exist

get_text_score()¶: Get text score from text query

has_field(field_name)¶

Determines whether the document has a field of the given name.

Parameters: field_name – the field name
Returns: True/False

id¶: A field wrapper around MongoDB’s ObjectIds.

property in_db¶: Whether the document has been inserted into the database.

iter_fields()¶

Returns an iterator over the (name, value) pairs of the public fields of the document.

Returns: an iterator that emits (name, value) tuples

classmethod list_indexes()¶

Lists all indexes that should be created for the Document collection. It includes all the indexes from super- and sub-classes.

Note that it will only return the indexes’ fields, not the indexes’ options

merge(doc, merge_lists=True, merge_dicts=True, overwrite=True)¶

Merges the contents of the given document into this document.

Parameters

doc – a SerializableDocument of same type as this document
merge_lists (True) – whether to merge the elements of top-level list fields rather than treating the list as a single value
merge_dicts (True) – whether to recursively merge the contents of top-level dict fields rather than treating the dict as a single value
overwrite (True) – whether to overwrite (True) or skip (False) existing fields

modify(query=None, **update)¶

Perform an atomic update of the document in the database and reload the document object using updated version.

Returns True if the document has been updated or False if the document in the database doesn’t match the query.

Note

All unsaved changes that have been made to the document are rejected if the method returns True.

Parameters

query – the update will be performed only if the document in the database matches the query
update – Django-style update keyword arguments

my_metaclass¶

alias of mongoengine.base.metaclasses.TopLevelDocumentMetaclass Methods:

`get_auto_id_names`(new_class)	Find a name for the automatic ID field for the given new class.
`mro`	Return a type’s method resolution order.

objects(q_obj=None, **query) = []¶

property pk¶: Get the primary key.

classmethod register_delete_rule(document_cls, field_name, rule)¶: This method registers the delete rules to apply when removing this object.

reload(*fields, **kwargs)¶

Reloads the document from the database.

Parameters: *fields – an optional args list of specific fields to reload

save(upsert=False, validate=True, clean=True, safe=False, **kwargs)¶

Saves the document to the database.

If the document already exists, it will be updated, otherwise it will be created.

Parameters

upsert (False) – whether to insert the document if it has an id populated but no document with that ID exists in the database
validate (True) – whether to validate the document
clean (True) – whether to call the document’s clean() method. Only applicable when validate is True
safe (False) – whether to reload() the document before raising any errors

Returns

self

select_related(max_depth=1)¶: Handles dereferencing of DBRef objects to a maximum depth in order to cut down the number queries to mongodb.

set_field(field_name, value, create=True)¶

Sets the value of a field of the document.

Parameters

field_name – the field name
value – the field value
create (True) – whether to create the field if it does not exist

Raises

ValueError – if field_name is not an allowed field name or does not exist and create == False

switch_collection(collection_name, keep_created=True)¶

Temporarily switch the collection for a document instance.

Only really useful for archiving off data and calling save():

user = User.objects.get(id=user_id)
user.switch_collection('old-users')
user.save()

Parameters

collection_name (str) – The database alias to use for saving the document
keep_created (bool) – keep self._created value after switching collection, else is reset to True