tardis.tardis_portal.models package

Submodules

tardis.tardis_portal.models.access_control module

class tardis.tardis_portal.models.access_control.GroupAdmin(*args, **kwargs)

Bases: django.db.models.base.Model

GroupAdmin links the Django User and Group tables for group administrators

Attribute user

a forign key to the django.contrib.auth.models.User

Attribute group

a forign key to the django.contrib.auth.models.Group

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

group

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.

group_id
id

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

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

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.

user_id
class tardis.tardis_portal.models.access_control.ObjectACL(*args, **kwargs)

Bases: django.db.models.base.Model

The ObjectACL (formerly ExperimentACL) table is the core of the Tardis Authorisation framework

Attribute pluginId

the the name of the auth plugin being used

Attribute entityId

a foreign key to auth plugins

Attribute object_type

a foreign key to ContentType

Attribute object_id

the primary key/id of the object_type

Attribute canRead

gives the user read access

Attribute canWrite

gives the user write access

Attribute canDelete

gives the user delete permission

Attribute isOwner

the experiment owner flag.

Attribute effectiveDate

the date when access takes into effect

Attribute expiryDate

the date when access ceases

Attribute aclOwnershipType

system-owned or user-owned.

System-owned ACLs will prevent users from removing or editing ACL entries to a particular experiment they own. User-owned ACLs will allow experiment owners to remove/add/edit ACL entries to the experiments they own.

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

OWNER_OWNED = 1
SYSTEM_OWNED = 2
aclOwnershipType

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

canDelete

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

canRead

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

canWrite

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

content_object

Provide a generic many-to-one relation through the content_type and object_id fields.

This class also doubles as an accessor to the related object (similar to ForwardManyToOneDescriptor) by adding itself as a model attribute.

content_type

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.

content_type_id
effectiveDate

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

entityId

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

expiryDate

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

get_aclOwnershipType_display(*, field=<django.db.models.fields.IntegerField: aclOwnershipType>)
classmethod get_effective_query()

If possible, resolve the pluginId/entityId combination to a user or group object.

If possible, resolve the pluginId/entityId combination to a user or group object.

id

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

isOwner

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

object_id

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

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

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

pluginId

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

class tardis.tardis_portal.models.access_control.UserAuthentication(id, userProfile, username, authenticationMethod, approved)

Bases: django.db.models.base.Model

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

approved

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

authenticationMethod

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

getAuthMethodDescription()
get_authenticationMethod_display(*, field=<django.db.models.fields.CharField: authenticationMethod>)
id

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

objects = <django.db.models.manager.Manager object>
save(*args, **kwargs)

Save the current instance. Override this in a subclass if you want to control the saving process.

The ‘force_insert’ and ‘force_update’ parameters can be used to insist that the “save” must be an SQL insert or update (or equivalent for non-SQL backends), respectively. Normally, they should not be set.

userProfile

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.

userProfile_id
username

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

class tardis.tardis_portal.models.access_control.UserProfile(*args, **kwargs)

Bases: django.db.models.base.Model

UserProfile class is an extension to the Django standard user model.

Attribute isDjangoAccount

is the user a local DB user

Attribute user

a foreign key to the django.contrib.auth.models.User

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

property ext_groups
getUserAuthentications()
id

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

isDjangoAccount

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

isValidPublicContact()

Checks if there’s enough information on the user for it to be used as a public contact.

Note: Last name can’t be required, because people don’t necessarilly have a last (or family) name.

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

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

user

Accessor to the related object on the forward side of a one-to-one relation.

In the example:

class Restaurant(Model):
    place = OneToOneField(Place, related_name='restaurant')

Restaurant.place is a ForwardOneToOneDescriptor instance.

user_id
userauthentication_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

tardis.tardis_portal.models.access_control.create_user_api_key(sender, **kwargs)

Auto-create ApiKey objects using Tastypie’s create_api_key

tardis.tardis_portal.models.access_control.create_user_profile(sender, instance, created, **kwargs)
tardis.tardis_portal.models.access_control.get_auth_method_choices()

tardis.tardis_portal.models.datafile module

class tardis.tardis_portal.models.datafile.DataFile(*args, **kwargs)

Bases: django.db.models.base.Model

A DataFile is a record of a file which includes its filename, its size in bytes, its relative directory, and various other meta-data. Each DataFile belongs to a Dataset which usually represents the files from one folder on an instrument PC.

The physical copy (or copies) of a file are described by distinct DataFileObject records.

Attribute dataset

The foreign key to the tardis.tardis_portal.models.Dataset the file belongs to.

Attribute filename

The name of the file, excluding the path.

Attribute size

The size of the file.

Attribute created_time

Should be populated with the file’s creation time from the instrument PC.

Attribute modification_time

Should be populated with the file’s last modification time from the instrument PC.

Attribute mimetype

For example ‘application/pdf’

Attribute md5sum

Digest of length 32, containing only hexadecimal digits

Attribute sha512sum

Digest of length 128, containing only hexadecimal digits

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

cache_file()
created_time

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

datafileparameterset_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

dataset

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.

dataset_id
deleted

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

deleted_time

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

directory

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

download_url
property file_object
file_objects

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

filename

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

getParameterSets()

Return datafile parametersets associated with this datafile.

get_absolute_filepath()
get_as_temporary_file(directory=None)

Returns a traditional file-system-based file object that is a copy of the original data. The file is deleted when the context is destroyed.

Parameters

directory (basestring) – the directory in which to create the temp file

Returns

the temporary file object

Return type

NamedTemporaryFile

get_default_storage_box()

try to guess appropriate box from dataset or use global default

get_file(verified_only=True)

Returns the file as a readable file-like object from the best avaiable storage box.

If verified_only=False, the return of files without a verified checksum is allowed, otherwise None is returned for unverified files.

Parameters

verified_only (bool) – if False return files without verified checksums

Returns

Python file object

Return type

Python File object

get_image_data()
get_mimetype()
get_preferred_dfo(verified_only=True)
get_receiving_storage_box()
get_size()
has_image
id

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

is_image()

returns True if it’s an image and not an x-icon and not an img the image/img mimetype is made up though and may need revisiting if there is an official img mimetype that does not refer to diffraction images

is_local()
is_online

return False if a file is on tape. At this stage it checks it returns true for no file objects, because those files are offline through other checks

is_public()
md5sum

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

mimetype

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

modification_time

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

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

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

recall_url

Get a URL to request a recall from tape

save(*args, **kwargs)

Save the current instance. Override this in a subclass if you want to control the saving process.

The ‘force_insert’ and ‘force_update’ parameters can be used to insist that the “save” must be an SQL insert or update (or equivalent for non-SQL backends), respectively. Normally, they should not be set.

sha512sum

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

size

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

property status

returns information about the status of the file. States are defined in StorageBox

classmethod sum_sizes(datafiles)

Takes a query set of datafiles and returns their total size.

update_mimetype(mimetype=None, force=False, save=True)
property verified

Return True if at least one DataFileObject is verified

verify(reverify=False)
version

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

view_url
class tardis.tardis_portal.models.datafile.DataFileObject(*args, **kwargs)

Bases: django.db.models.base.Model

The physical copy (or copies) of a DataFile are described by distinct DataFileObject records.

Attribute datafile

The DataFile record which this DataFileObject is storing a copy of.

Attribute storage_box

The StorageBox containing this copy of the file. The StorageBox could represent a directory on a mounted filesystem, or a bucket in an Object Store.

Attribute uri

The relative path of the file location within the the StorageBox, e.g. dataset1-12345/file1.txt for a copy of a DataFile with filename file1.txt which belongs to a Dataset with a description of dataset1 and an ID of 12345.

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

apply_filters()
cache_file()
calculate_checksums(compute_md5=True, compute_sha512=False)

Calculates checksums for a DataFileObject instance

Parameters

  • compute_md5 (bool) – whether to compute md5 default=True

  • compute_sha512 (bool) – whether to compute sha512, default=True

Returns

the checksums as {‘md5sum’: result, ‘sha512sum’: result}

Return type

dict

copy_file(dest_box=None, verify=True)

copies verified file to new storage box checks for existing copy triggers async verification if not disabled :param StorageBox dest_box: StorageBox instance :param bool verify: :returns: DataFileObject of copy :rtype: DataFileObject

create_set_uri(force=False, save=False)

sets the uri as well as building it :param bool force: :param book save: :return: :rtype: basestring

created_time

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

datafile

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.

datafile_id
delete_data()
property file_object

A set of accessor functions that convert the file information to a standard Python file object for reading and copy the contents of an existing file_object into the storage backend.

Returns

a file object

Return type

Python File object

get_full_path()
get_next_by_created_time(*, field=<django.db.models.fields.DateTimeField: created_time>, is_next=True, **kwargs)
get_previous_by_created_time(*, field=<django.db.models.fields.DateTimeField: created_time>, is_next=False, **kwargs)
id

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

last_verified_time

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

property modified_time
move_file(dest_box=None)

moves a file copies first, then synchronously verifies deletes file if copy is true copy and has been verified

Parameters

dest_box (StorageBox) – StorageBox instance

Returns

moved file dfo

Return type

DataFileObject

objects = <django.db.models.manager.Manager object>
property priority

Default priority for tasks which take this DFO as an argument

save(*args, **kwargs)

Save the current instance. Override this in a subclass if you want to control the saving process.

The ‘force_insert’ and ‘force_update’ parameters can be used to insist that the “save” must be an SQL insert or update (or equivalent for non-SQL backends), respectively. Normally, they should not be set.

storage_box

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.

storage_box_id
property storage_type
Returns

storage_box type

Return type

StorageBox type constant

uri

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

verified

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

verify(add_checksums=True, add_size=True)
tardis.tardis_portal.models.datafile.compute_checksums(file_object, compute_md5=True, compute_sha512=False, close_file=True)

Computes checksums for a python file object

Parameters

  • file_object (object) – Python File object

  • compute_md5 (bool) – whether to compute md5 default=True

  • compute_sha512 (bool) – whether to compute sha512, default=True

  • close_file (bool) – whether to close the file_object, default=True

Returns

the checksums as {‘md5sum’: result, ‘sha512sum’: result}

Return type

dict

tardis.tardis_portal.models.datafile.delete_dfo(sender, instance, **kwargs)

Deletes the actual file / object, before deleting the database record

tardis.tardis_portal.models.dataset module

class tardis.tardis_portal.models.dataset.Dataset(*args, **kwargs)

Bases: django.db.models.base.Model

A dataset represents a collection files usually associated with a folder on an instrument PC. Each file within the dataset is represented by a tardis.tardis_portal.models.DataFile record. A dataset can appear in one or more Experiment records. Access controls are configured at the Experiment level by creating ObjectACL records. Each dataset can be associated with an Instrument record, but it is possible to create a dataset without specifying an instrument.

Attribute experiment

A foreign key to the one ore more Experiment records which contain this dataset

Attribute instrument

The foreign key to the instrument that generated this data

Attribute description

Description of this dataset, which usually corresponds to the folder name on the instrument PC

Attribute immutable

Whether this dataset is read-only

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

created_time

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

datafile_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

datasetparameterset_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

description

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

directory

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

experiments

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.

getParameterSets(schemaType=None)

Return the dataset parametersets associated with this experiment.

get_absolute_url()

Return the absolute url to the current Dataset

get_all_storage_boxes_used()
get_datafiles()
get_dir_nodes(dir_tuples)

Return child node’s subdirectories in format required for tree view

Given a list of (‘subdir’, ‘path/to/subdir’) tuples for a dataset directory node, return a list of {‘name’: ‘subdir’, ‘children’: []} dictionaries required for the tree view.

Like the get_dir_tuples method, the get_dir_nodes method only lists files and directories immediately within the supplied basedir, so any subdirectories will have an empty children array.

Continuing the example from the _dirs property method:

test files/subdir1/ test files/subdir2/ test files/subdir3/ test files/subdir3/subdir4/

List directories in the dataset’s top level directory: >>> dir_tuples = ds.get_dir_tuples(“”) >>> ds.get_dir_nodes(dir_tuples) [

{

‘name’: ‘test files’, ‘path’: ‘’, ‘children’: []

}

]

List directories within the dataset’s “test files” directory: >>> dir_tuples = ds.get_dir_tuples(“test files”) >>> ds.get_dir_nodes(dir_tuples) [

{

‘name’: ‘subdir1’, ‘path’: ‘test files/subdir1’, ‘children’: []

}, {

‘name’: ‘subdir2’, ‘path’: ‘test files/subdir2’, ‘children’: []

}, {

‘name’: ‘subdir3’, ‘path’: ‘test files/subdir3’, ‘children’: []

},

]

Request directories within a non-existent directory: >>> dir_tuples = ds.get_dir_tuples(“test file”) >>> ds.get_dir_nodes(dir_tuples) []

List directories within the dataset’s “test files/subdir3” directory: >>> dir_tuples = ds.get_dir_tuples(“test files3/subdir3”) >>> ds.get_dir_nodes(dir_tuples) [

‘name’: ‘subdir4’, ‘path’: ‘test files/subdir3/subdir4’, ‘children’: []

]

get_dir_tuples(basedir='')

List the directories immediately inside basedir.

If basedir is empty (the default), list directories with no separator, e.g. “subdir1”

If basedir is a string without a separator (e.g. “subdir1”), look for directory paths with one separator e.g. “subdir1/subdir2” and include a “..” for navigating back to the dataset’s top-level directory.

Continuing the example from the _dirs property method:

test files/subdir1/ test files/subdir2/ test files/subdir3/ test files/subdir3/subdir4/

List directories in the dataset’s top level directory: >>> ds.get_dir_tuples(“”) [(‘test files’)]

List directories within the dataset’s “test files” directory: >>> ds.get_dir_tuples(“test files”) [(‘..’, ‘test files’), (‘subdir1’, ‘test /filessubdir1’),

(‘subdir2’, ‘test files/subdir2’), (‘subdir3’, ‘test files/subdir3’)]

Request directories within a non-existent directory: >>> ds.get_dir_tuples(“test file”) []

List directories within the dataset’s “test files/subdir3” directory: >>> ds.get_dir_tuples(“test files/subdir3”) [(‘..’, ‘test files/subdir3’), (‘subdir4’, ‘test files/subdir3/subdir4’)]

List directories within the dataset’s “test files/subdir3/subdir4” directory: >>> ds.get_dir_tuples(“test files/subdir3/subdir4”) [(‘..’, ‘test files/subdir3/subdir4’)]

get_download_urls()
get_edit_url()

Return the absolute url to the edit view of the current Dataset

get_first_experiment()
get_images()
get_path()
get_size()
get_thumbnail_url()
id

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

property image
immutable

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

instrument

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.

instrument_id
property is_online
modified_time

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

objects = <tardis.tardis_portal.managers.OracleSafeManager object>
property online_files_count
save(*args, **kwargs)

Save the current instance. Override this in a subclass if you want to control the saving process.

The ‘force_insert’ and ‘force_update’ parameters can be used to insist that the “save” must be an SQL insert or update (or equivalent for non-SQL backends), respectively. Normally, they should not be set.

tardis.tardis_portal.models.experiment module

class tardis.tardis_portal.models.experiment.Experiment(*args, **kwargs)

Bases: django.db.models.base.Model

An Experiment is a collection of Dataset records. A Dataset record can appear in multiple Experiment records. Access controls are configured at the Experiment level by creating ObjectACL records.

Attribute url

An optional URL associated with the data collection

Attribute approved

An optional field indicating whether the collection is approved

Attribute title

The title of the experiment.

Attribute description

The description of the experiment.

Attribute institution_name

The name of the institution who created the experiment.

Attribute start_time

Undocumented

Attribute end_time

Undocumented

Attribute created_time

Undocumented

Attribute handle

Undocumented

Attribute public

Whether the experiment is publicly accessible

Attribute objects

Default model manager

Attribute safe

ACL aware model manager

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

PUBLICATION_DETAILS_SCHEMA = 'http://www.tardis.edu.au/schemas/publication/details/'
PUBLICATION_DRAFT_SCHEMA = 'http://www.tardis.edu.au/schemas/publication/draft/'
PUBLICATION_SCHEMA_ROOT = 'http://www.tardis.edu.au/schemas/publication/'
PUBLIC_ACCESS_CHOICES = ((1, 'No public access (hidden)'), (25, 'Ready to be released pending embargo expiry'), (50, 'Public Metadata only (no data file access)'), (100, 'Public'))
PUBLIC_ACCESS_EMBARGO = 25
PUBLIC_ACCESS_FULL = 100
PUBLIC_ACCESS_METADATA = 50
PUBLIC_ACCESS_NONE = 1
approved

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

created_by

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.

created_by_id
created_time

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

datasets

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.

description

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

end_time

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

experimentauthor_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

experimentparameterset_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

getParameterSets()

Return the experiment parametersets associated with this experiment.

get_absolute_url()

Return the absolute url to the current Experiment

get_create_token_url()

Return the absolute url to the create token view of the current Experiment

get_ct()
get_datafiles()
get_download_urls()
get_edit_url()

Return the absolute url to the edit view of the current Experiment

get_groups()
get_images()
get_next_by_created_time(*, field=<django.db.models.fields.DateTimeField: created_time>, is_next=True, **kwargs)
get_next_by_update_time(*, field=<django.db.models.fields.DateTimeField: update_time>, is_next=True, **kwargs)
get_or_create_directory()
get_owners()
get_previous_by_created_time(*, field=<django.db.models.fields.DateTimeField: created_time>, is_next=False, **kwargs)
get_previous_by_update_time(*, field=<django.db.models.fields.DateTimeField: update_time>, is_next=False, **kwargs)
get_public_access_display(*, field=<django.db.models.fields.PositiveSmallIntegerField: public_access>)
get_size()
handle

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

id

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

institution_name

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

is_publication()
is_publication_draft()
license

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.

license_id
locked

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

objectacls

Accessor to the related objects manager on the one-to-many relation created by GenericRelation.

In the example:

class Post(Model):
    comments = GenericRelation(Comment)

post.comments is a ReverseGenericManyToOneDescriptor instance.

objects = <tardis.tardis_portal.managers.OracleSafeManager object>
public_access

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

classmethod public_access_implies_distribution(public_access_level)

Determines if a level of public access implies that distribution should be allowed, or alternately if it should not be allowed. Used to prevent free-distribution licences for essentially private data, and overly-restrictive licences for public data.

public_download_allowed()

instance method version of ‘public_access_implies_distribution’

safe = <tardis.tardis_portal.managers.ExperimentManager object>
save(*args, **kwargs)

Save the current instance. Override this in a subclass if you want to control the saving process.

The ‘force_insert’ and ‘force_update’ parameters can be used to insist that the “save” must be an SQL insert or update (or equivalent for non-SQL backends), respectively. Normally, they should not be set.

start_time

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

title

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

token_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

update_time

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

url

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

class tardis.tardis_portal.models.experiment.ExperimentAuthor(id, experiment, author, institution, email, order, url)

Bases: django.db.models.base.Model

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

author

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

email

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

experiment

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.

experiment_id
id

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

institution

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

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

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

save(*args, **kwargs)

Save the current instance. Override this in a subclass if you want to control the saving process.

The ‘force_insert’ and ‘force_update’ parameters can be used to insist that the “save” must be an SQL insert or update (or equivalent for non-SQL backends), respectively. Normally, they should not be set.

url

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

tardis.tardis_portal.models.facility module

class tardis.tardis_portal.models.facility.Facility(*args, **kwargs)

Bases: django.db.models.base.Model

Represents a facility that produces data.

Each Instrument record must belong to exactly one facility. Many Instrument records can be associated with the same facility.

Attribute name

The name of the facility, e.g. “Test Facility”

Attribute manager_group

The group of users who can access the Facility Overview for this facility.

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

created_time

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

id

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

instrument_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

manager_group

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.

manager_group_id
modified_time

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

name

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

objects = <django.db.models.manager.Manager object>
save(*args, **kwargs)

Save the current instance. Override this in a subclass if you want to control the saving process.

The ‘force_insert’ and ‘force_update’ parameters can be used to insist that the “save” must be an SQL insert or update (or equivalent for non-SQL backends), respectively. Normally, they should not be set.

tardis.tardis_portal.models.facility.facilities_managed_by(user)

Returns a list of facilities managed by a user

tardis.tardis_portal.models.facility.is_facility_manager(user)

Returns true if the user manages one or more facilities

tardis.tardis_portal.models.hooks module

tardis.tardis_portal.models.hooks.post_save_experiment(sender, **kwargs)
tardis.tardis_portal.models.hooks.post_save_experiment_parameter(sender, **kwargs)
tardis.tardis_portal.models.hooks.post_save_experimentauthor(sender, **kwargs)
tardis.tardis_portal.models.hooks.publish_public_expt_rifcs(experiment)

tardis.tardis_portal.models.instrument module

class tardis.tardis_portal.models.instrument.Instrument(*args, **kwargs)

Bases: django.db.models.base.Model

Represents an instrument belonging to a facility that produces data

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

created_time

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

dataset_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

facility

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.

facility_id
getParameterSets()

Return the instrument parametersets associated with this instrument.

id

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

instrumentparameterset_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

modified_time

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

name

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

objects = <django.db.models.manager.Manager object>
save(*args, **kwargs)

Save the current instance. Override this in a subclass if you want to control the saving process.

The ‘force_insert’ and ‘force_update’ parameters can be used to insist that the “save” must be an SQL insert or update (or equivalent for non-SQL backends), respectively. Normally, they should not be set.

tardis.tardis_portal.models.jti module

class tardis.tardis_portal.models.jti.JTI(id, jti, created_time)

Bases: django.db.models.base.Model

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

created_time

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

get_next_by_created_time(*, field=<django.db.models.fields.DateTimeField: created_time>, is_next=True, **kwargs)
get_previous_by_created_time(*, field=<django.db.models.fields.DateTimeField: created_time>, is_next=False, **kwargs)
id

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

jti

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

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

tardis.tardis_portal.models.license module

class tardis.tardis_portal.models.license.License(*args, **kwargs)

Bases: django.db.models.base.Model

Represents a licence for experiment content.

Instances should provide enough detail for both researchers to select the licence, and for the users of their data to divine correct usage of experiment content.

(Non-US developers: We’re using US spelling in the code.)

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

allows_distribution

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

experiment_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

classmethod get_none_option_license()
classmethod get_suitable_licenses(public_access_method=None)
id

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

image_url

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

internal_description

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

is_active

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

name

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

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

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

tardis.tardis_portal.models.parameters module

class tardis.tardis_portal.models.parameters.DatafileParameter(id, name, string_value, numerical_value, datetime_value, link_id, link_ct, parameterset)

Bases: tardis.tardis_portal.models.parameters.Parameter

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

id

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

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.

Provide a generic many-to-one relation through the content_type and object_id fields.

This class also doubles as an accessor to the related object (similar to ForwardManyToOneDescriptor) by adding itself as a model attribute.

name

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.

parameter_type = 'Datafile'
parameterset

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.

parameterset_id
class tardis.tardis_portal.models.parameters.DatafileParameterSet(id, schema, datafile)

Bases: tardis.tardis_portal.models.parameters.ParameterSet

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

datafile

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.

datafile_id
datafileparameter_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

id

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

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

alias of tardis.tardis_portal.models.parameters.DatafileParameter

schema

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.

storage_box

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.

class tardis.tardis_portal.models.parameters.DatasetParameter(id, name, string_value, numerical_value, datetime_value, link_id, link_ct, parameterset)

Bases: tardis.tardis_portal.models.parameters.Parameter

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

id

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

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.

Provide a generic many-to-one relation through the content_type and object_id fields.

This class also doubles as an accessor to the related object (similar to ForwardManyToOneDescriptor) by adding itself as a model attribute.

name

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.

parameter_type = 'Dataset'
parameterset

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.

parameterset_id
class tardis.tardis_portal.models.parameters.DatasetParameterSet(id, schema, dataset)

Bases: tardis.tardis_portal.models.parameters.ParameterSet

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

dataset

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.

dataset_id
datasetparameter_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

id

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

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

alias of tardis.tardis_portal.models.parameters.DatasetParameter

schema

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.

storage_box

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.

class tardis.tardis_portal.models.parameters.ExperimentParameter(id, name, string_value, numerical_value, datetime_value, link_id, link_ct, parameterset)

Bases: tardis.tardis_portal.models.parameters.Parameter

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

id

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

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.

Provide a generic many-to-one relation through the content_type and object_id fields.

This class also doubles as an accessor to the related object (similar to ForwardManyToOneDescriptor) by adding itself as a model attribute.

name

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.

parameter_type = 'Experiment'
parameterset

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.

parameterset_id
save(*args, **kwargs)

Save the current instance. Override this in a subclass if you want to control the saving process.

The ‘force_insert’ and ‘force_update’ parameters can be used to insist that the “save” must be an SQL insert or update (or equivalent for non-SQL backends), respectively. Normally, they should not be set.

class tardis.tardis_portal.models.parameters.ExperimentParameterSet(id, schema, experiment)

Bases: tardis.tardis_portal.models.parameters.ParameterSet

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

experiment

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.

experiment_id
experimentparameter_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

id

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

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

alias of tardis.tardis_portal.models.parameters.ExperimentParameter

schema

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.

storage_box

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.

class tardis.tardis_portal.models.parameters.FreeTextSearchField(id, parameter_name)

Bases: django.db.models.base.Model

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

id

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

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

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.

parameter_name_id
class tardis.tardis_portal.models.parameters.InstrumentParameter(id, name, string_value, numerical_value, datetime_value, link_id, link_ct, parameterset)

Bases: tardis.tardis_portal.models.parameters.Parameter

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

id

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

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.

Provide a generic many-to-one relation through the content_type and object_id fields.

This class also doubles as an accessor to the related object (similar to ForwardManyToOneDescriptor) by adding itself as a model attribute.

name

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.

parameter_type = 'Instrument'
parameterset

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.

parameterset_id
class tardis.tardis_portal.models.parameters.InstrumentParameterSet(id, schema, instrument)

Bases: tardis.tardis_portal.models.parameters.ParameterSet

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

id

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

instrument

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.

instrument_id
instrumentparameter_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

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

alias of tardis.tardis_portal.models.parameters.InstrumentParameter

schema

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.

storage_box

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.

class tardis.tardis_portal.models.parameters.Parameter(*args, **kwargs)

Bases: django.db.models.base.Model

class Meta

Bases: object

abstract = False
app_label = 'tardis_portal'
ordering = ['name']
datetime_value

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

get()

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.

Provide a generic many-to-one relation through the content_type and object_id fields.

This class also doubles as an accessor to the related object (similar to ForwardManyToOneDescriptor) by adding itself as a model attribute.

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

name

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.

name_id
numerical_value

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

objects
parameter_type = 'Abstract'
set_value(value)

Sets the parameter value, converting into the appropriate data type. Deals with date/time strings that are timezone naive or aware, based on the USE_TZ setting.

Parameters

value (basestring) – a string (or string-like) repr of the value

Raises

SuspiciousOperation –

string_value

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

class tardis.tardis_portal.models.parameters.ParameterName(id, schema, name, full_name, units, data_type, immutable, comparison_type, is_searchable, choices, order)

Bases: django.db.models.base.Model

CONTAINS_COMPARISON = 8
DATETIME = 6
exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

EXACT_VALUE_COMPARISON = 1
FILENAME = 5
GREATER_THAN_COMPARISON = 4
GREATER_THAN_EQUAL_COMPARISON = 5
JSON = 8
LESS_THAN_COMPARISON = 6
LESS_THAN_EQUAL_COMPARISON = 7
LONGSTRING = 7
exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

NOT_EQUAL_COMPARISON = 2
NUMERIC = 1
RANGE_COMPARISON = 3
STRING = 2
URL = 3
choices

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

comparison_type

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

data_type

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

datafileparameter_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

datasetparameter_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

experimentparameter_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

freetextsearchfield_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

full_name

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

getUniqueShortName()
get_comparison_type_display(*, field=<django.db.models.fields.IntegerField: comparison_type>)
get_data_type_display(*, field=<django.db.models.fields.IntegerField: data_type>)
id

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

immutable

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

instrumentparameter_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

isDateTime()
isFilename()
isLongString()
isNumeric()
isString()
isURL()
is_json()
is_searchable

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

name

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

natural_key()
objects = <tardis.tardis_portal.managers.ParameterNameManager object>
order

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

schema

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.

schema_id
units

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

class tardis.tardis_portal.models.parameters.ParameterSet(*args, **kwargs)

Bases: django.db.models.base.Model, tardis.tardis_portal.models.parameters.ParameterSetManagerMixin

class Meta

Bases: object

abstract = False
app_label = 'tardis_portal'
ordering = ['id']
parameter_class = None
save(*args, **kwargs)

Save the current instance. Override this in a subclass if you want to control the saving process.

The ‘force_insert’ and ‘force_update’ parameters can be used to insist that the “save” must be an SQL insert or update (or equivalent for non-SQL backends), respectively. Normally, they should not be set.

schema

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.

schema_id
storage_box

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.

class tardis.tardis_portal.models.parameters.ParameterSetManagerMixin(parameterset=None, parentObject=None, schema=None)

Bases: tardis.tardis_portal.ParameterSetManager.ParameterSetManager

for clarity’s sake and for future extension this class makes ParameterSetManager local to this file. At the moment its only function is increasing the line count

class tardis.tardis_portal.models.parameters.Schema(id, namespace, name, type, subtype, immutable, hidden)

Bases: django.db.models.base.Model

DATAFILE = 3
DATASET = 2
exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

EXPERIMENT = 1
INSTRUMENT = 5
exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

NONE = 4
exception UnsupportedType(msg)

Bases: Exception

datafileparameterset_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

datasetparameterset_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

experimentparameterset_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

get_type_display(*, field=<django.db.models.fields.IntegerField: type>)
hidden

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

id

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

immutable

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

instrumentparameterset_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

name

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

namespace

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

natural_key()
objects = <tardis.tardis_portal.managers.SchemaManager object>
parametername_set

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

subtype

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

type

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

tardis.tardis_portal.models.storage module

class tardis.tardis_portal.models.storage.StorageBox(*args, **kwargs)

Bases: django.db.models.base.Model

table that holds storage boxes of any type. to extend to new types, add fields if necessary

Attribute max_size

max size in bytes

BUNDLE = 6
CACHE = 3
DISK = 1
exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

TAPE = 2
TEMPORARY = 4
TYPES = {'bundle': 6, 'cache': 3, 'disk': 1, 'receiving': 4, 'tape': 2}
TYPE_UNKNOWN = 5
attributes

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

property autocache

Whether to automatically copy data into faster storage

Returns

True if data should be automatically cached

Return type

bool

property cache_box

Get cache box if set up

child_boxes

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

copy_files(dest_box=None)
copy_to_master()
classmethod create_local_box(location=None)
datafileparametersets

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.

datasetparametersets

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.

description

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

django_storage_class

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

experimentparametersets

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.

file_objects

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

classmethod get_default_storage(location=None, user=None)

gets default storage box or get local storage box with given base location or create one if it doesn’t exist.

policies: Have a StorageBoxAttribute: key=’default’, value=True find a storage box where location is DEFAULT_STORAGE_BASE_DIR create a default storage box at DEFAULT_STORAGE_BASE_DIR lowest id storage box is default no storage box defined, use hard coded default for now TODO: consider removing this

Would be nice: get largest free space one, test for authorisation

get_initialised_storage_instance()
get_options_as_dict()
id

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

instrumentparametersets

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.

master_box

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.

master_box_id
max_size

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

move_files(dest_box=None)
move_to_master()
name

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

objects = <django.db.models.manager.Manager object>
offline_types = [2]
online_types = [3, 1, 4, 6]
options

Accessor to the related objects manager on the reverse side of a many-to-one relation.

In the example:

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

Parent.children is a ReverseManyToOneDescriptor instance.

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

property priority

Default priority for tasks which take this box as an argument

status

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

property storage_type
type_order = [3, 6, 1, 2, 4, 5]
class tardis.tardis_portal.models.storage.StorageBoxAttribute(*args, **kwargs)

Bases: django.db.models.base.Model

Can hold attributes/metadata about different storage locations.

Attribute key

The key used to look up the attribute (e.g. “type”).

Attribute value

The value of the attribute e.g. “cache”.

The “type” key has three values support by the core MyTardis code: “permanent”, “receiving” and “cache”.

Adding an attribute with key “type” and value “permanent” preserves the default behaviour of a storage box, i.e. it is equivalent to not adding the attribute.

Adding an attribute with key “type” and value “receiving” means that the storage box will be treated as a staging area which receives files intended to be transfered to a permanent storage box. If a storage box has the “type: receiving” attribute, it must link to a permanent storage box (via its master_box foreign key).

Adding an attribute with key “type” and value “cache” means that the storage box will be used to copy data from slow-access storage to fast-access storage. If a storage box has the “type: cache” attribute, it must link to a permanent storage box (via its master_box foreign key).

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

id

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

key

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

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

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.

storage_box_id
value

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

class tardis.tardis_portal.models.storage.StorageBoxOption(*args, **kwargs)

Bases: django.db.models.base.Model

holds the options passed to the storage class defined in StorageBox. key->value store with support for typed values through pickling when value_type is set to ‘pickle’

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

PICKLE = 'pickle'
STRING = 'string'
TYPE_CHOICES = (('string', 'String value'), ('pickle', 'Pickled value'))
get_value_type_display(*, field=<django.db.models.fields.CharField: value_type>)
id

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

key

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

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

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.

storage_box_id
property unpickled_value
value

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

value_type

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

tardis.tardis_portal.models.token module

class tardis.tardis_portal.models.token.Token(id, token, experiment, expiry_date, user)

Bases: django.db.models.base.Model

exception DoesNotExist

Bases: django.core.exceptions.ObjectDoesNotExist

exception MultipleObjectsReturned

Bases: django.core.exceptions.MultipleObjectsReturned

experiment

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.

experiment_id
expiry_date

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

get_next_by_expiry_date(*, field=<django.db.models.fields.DateField: expiry_date>, is_next=True, **kwargs)
get_previous_by_expiry_date(*, field=<django.db.models.fields.DateField: expiry_date>, is_next=False, **kwargs)
get_session_expiry()

A token login should expire at the earlier of a) tomorrow at 4am b) the (end of) the token’s expiry date

It is the responsibility of token_auth to set the session expiry

id

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

is_expired()
objects = <tardis.tardis_portal.managers.OracleSafeManager object>
save_with_random_token()
token

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

user

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.

user_id

Module contents

models/__init__.py