Models

Data models for the db application.

class debusine.db.models.Artifact(*args, **kwargs)

Artifact model.

exception DoesNotExist

exception MultipleObjectsReturned

category

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

created_at

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_by_work_request

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_work_request_id

data

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

expire_at

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

expired(at: datetime) → bool

Return True if this artifact has expired at a given datetime.

Parameters:

at – datetime to check if the artifact is expired.

Return bool:

True if the artifact’s expire_at is on or earlier than the parameter at.

fileinartifact_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.

files

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.

get_next_by_created_at(*, field=<django.db.models.fields.DateTimeField: created_at>, is_next=True, **kwargs)

get_previous_by_created_at(*, field=<django.db.models.fields.DateTimeField: created_at>, 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.

objects = <debusine.db.models.ArtifactManager object>

relations

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.

targeted_by

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.

workspace

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.

workspace_id

class debusine.db.models.ArtifactManager(*args, **kwargs)

Manager for the Artifact model.

expired(at: datetime) → QuerySet

Return queryset with artifacts that have expired.

Parameters:

at – datetime to check if the artifacts are expired.

Returns:

artifacts that expire_at is before the given datetime.

not_expired(at: datetime) → QuerySet

Return queryset with artifacts that have not expired.

Parameters:

at – datetime to check if the artifacts are not expired.

Returns:

artifacts that expire_at is None (do not expire) or expire_at is after the given datetime.

class debusine.db.models.ArtifactRelation(*args, **kwargs)

Model relations between artifacts.

exception DoesNotExist

exception MultipleObjectsReturned

class Relations(value, names=None, *, module=None, qualname=None, type=None, start=1, boundary=None)

BUILT_USING = 'built-using'

EXTENDS = 'extends'

RELATES_TO = 'relates-to'

artifact

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.

artifact_id

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

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>

target

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.

target_id

type

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

class debusine.db.models.File(*args, **kwargs)

Database model of a file.

Model different attributes of the file.

From outside the class use the property hash and do not use sha256 field. This allows, if ever needed, to change the hash algorithm only modifying this class without changing the users of this class.

exception DoesNotExist

exception MultipleObjectsReturned

artifact_set

Accessor to the related objects manager on the forward and reverse sides of a many-to-many relation.

In the example:

class Pizza(Model):
    toppings = ManyToManyField(Topping, related_name='pizzas')

Pizza.toppings and Topping.pizzas are ManyToManyDescriptor instances.

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

classmethod calculate_hash(file_path: Path) → bytes

Return hash for the file.

current_hash_algorithm = 'sha256'

fileinartifact_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.

fileinstore_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.

filestore_set

Accessor to the related objects manager on the forward and reverse sides of a many-to-many relation.

In the example:

class Pizza(Model):
    toppings = ManyToManyField(Topping, related_name='pizzas')

Pizza.toppings and Topping.pizzas are ManyToManyDescriptor instances.

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

classmethod from_local_path(local_path: Path) → File

Return a File with the fields.

classmethod get_or_create(*, hash_digest: bytes, size: int)

Call File.objects.get_or_create with the correct parameters.

property hash_digest: bytes

Return the default hash digest of the File.

Use this property instead of the field to allow the algorithm to be changed in the future.

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>

sha256

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.

class debusine.db.models.FileInArtifact(*args, **kwargs)

File in artifact.

exception DoesNotExist

exception MultipleObjectsReturned

artifact

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.

artifact_id

file

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.

file_id

fileupload

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

In the example:

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

Place.restaurant is a ReverseOneToOneDescriptor instance.

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>

path

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

class debusine.db.models.FileInStore(*args, **kwargs)

Database model used as “through” from FileStore.

Keeps the relationship between stores, files and attached data.

exception DoesNotExist

exception MultipleObjectsReturned

data

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

file

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.

file_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>

store

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.

store_id

class debusine.db.models.FileStore(*args, **kwargs)

Database model of a FileStore.

FileStore has files attached to it.

BackendChoices

alias of _FileStoreBackendChoices

exception DoesNotExist

exception MultipleObjectsReturned

backend

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

configuration

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

static default() → FileStore

Return the default FileStore.

default_workspaces

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.

fileinstore_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.

files

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.

get_backend_display(*, field=<django.db.models.fields.CharField: backend>)

get_backend_object() → LocalFileStore

Instantiate the correct FileStore and return it.

id

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>

other_workspaces

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 debusine.db.models.FileUpload(*args, **kwargs)

File that is being/has been uploaded.

exception DoesNotExist

exception MultipleObjectsReturned

absolute_file_path() → Path

Return the absolute file path of the file.

The files are stored in settings.DEBUSINE_UPLOAD_DIRECTORY.

classmethod current_size(artifact: Artifact, path_in_artifact: str) → int

Return current file size.

The current file size might be smaller than the expected size of the file if the file has not finished being uploaded.

Raise ValueError if path_in_artifact does not exist in Artifact or if there’s no FileUpload object for the specific File.

delete(*args, **kwargs)

Schedule deletion of the file in the store.

file_in_artifact

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.

file_in_artifact_id

get_next_by_last_activity_at(*, field=<django.db.models.fields.DateTimeField: last_activity_at>, is_next=True, **kwargs)

get_previous_by_last_activity_at(*, field=<django.db.models.fields.DateTimeField: last_activity_at>, 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_activity_at

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>

path

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

class debusine.db.models.NotificationChannel(*args, **kwargs)

Model to store notification configuration.

exception DoesNotExist

class Methods(value, names=None, *, module=None, qualname=None, type=None, start=1, boundary=None)

EMAIL = 'email'

exception MultipleObjectsReturned

clean()

Ensure that data is valid for the specific method.

Raises:

ValidationError – for invalid data.

data

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

data_jsonschemas = {Methods.EMAIL: {'additionalProperties': False, 'properties': {'cc': {'items': {'format': 'email', 'type': 'string'}, 'type': 'array'}, 'from': {'format': 'email', 'type': 'string'}, 'subject': {'type': 'string'}, 'to': {'items': {'format': 'email', 'type': 'string'}, 'type': 'array'}}, 'required': ['from', 'to'], 'type': 'object'}}

get_method_display(*, field=<django.db.models.fields.CharField: method>)

id

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

method

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)

Run validators and save the instance.

class debusine.db.models.Token(*args, **kwargs)

Database model of a token.

A token contains a key and other related data. It’s used as a shared key between debusine server and clients (workers).

This token model is very similar to rest_framework.authtoken.models.Token. The bigger difference is that debusine’s token’s owner is a CharField, the rest_framework owner is a OneToOne foreign key to a user.

exception DoesNotExist

exception MultipleObjectsReturned

comment

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

created_at

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

disable() → None

Disable the token and save it.

enable() → None

Enable the token and save it.

enabled

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_at(*, field=<django.db.models.fields.DateTimeField: created_at>, is_next=True, **kwargs)

get_previous_by_created_at(*, field=<django.db.models.fields.DateTimeField: created_at>, 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.

key

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

objects = <debusine.db.models.TokenManager object>

save(*args, **kwargs) → None

Save the token. If key is empty it generates a key.

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

worker

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

In the example:

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

Place.restaurant is a ReverseOneToOneDescriptor instance.

class debusine.db.models.TokenManager(*args, **kwargs)

Manager for Token model.

get_token_or_none(token_key: str) → Optional[Token]

Return the token with token_key or None.

get_tokens(username: Optional[str] = None, key: Optional[str] = None) → QuerySet

Return all the tokens filtered by a specific owner and/or token.

To avoid filtering by owner or token set them to None

class debusine.db.models.User(*args, **kwargs)

Debusine user.

exception DoesNotExist

exception MultipleObjectsReturned

artifact_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_next_by_date_joined(*, field=<django.db.models.fields.DateTimeField: date_joined>, is_next=True, **kwargs)

get_previous_by_date_joined(*, field=<django.db.models.fields.DateTimeField: date_joined>, is_next=False, **kwargs)

groups

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.

id

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

logentry_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.

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.

user_permissions

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.

workrequest_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.

class debusine.db.models.WorkRequest(*args, **kwargs)

Database model of a request to execute a task.

Time-consuming operations offloaded to Workers and using Artifacts (and associated Files) as input and output.

Submission API needs to check if the request is valid using ontological rules - e.g. whether the specified distribution for a build task exists.

Avoid exposing the status of tasks to the admin interface to avoid runaway changes whilst the scheduler process is running.

The WorkRequest uses the non-Django tasks module to do the checks on whether a task can run on a particular worker.

WorkRequest State Machine

New WorkRequest database entries default to WorkRequest.Statuses.PENDING.

Once the WorkRequest is assigned to a worker and is running starts running the status is changed to WorkRequest.Statuses.RUNNING.

If the WorkRequest is aborted, the Scheduled.Task status is WorkRequest.Statuses.ABORTED.

If the task finish on the Worker the WorkRequest status will be WorkRequest.Statuses.COMPLETED and a WorkRequest.Result is then set, WorkRequest.Results.PASSED or WorkRequest.Results.FAILED.

WorkRequest.started_at is set when the WorkRequest moves from WorkRequest.Statuses.PENDING to WorkRequest.Statuses.RUNNING. WorkRequest.completed_at is set when the Task moves from WorkRequest.Statuses.RUNNING to WorkRequest.Statuses.COMPLETED.

exception DoesNotExist

exception MultipleObjectsReturned

class Results(value, names=None, *, module=None, qualname=None, type=None, start=1, boundary=None)

ERROR = 'error'

FAILURE = 'failure'

NONE = ''

SUCCESS = 'success'

class Statuses(value, names=None, *, module=None, qualname=None, type=None, start=1, boundary=None)

ABORTED = 'aborted'

COMPLETED = 'completed'

PENDING = 'pending'

RUNNING = 'running'

artifact_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.

assign_worker(worker: Optional[Worker]) → None

Assign worker and save it.

completed_at

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

created_at

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

property duration: Optional[int]

Return duration in seconds between started_at and completed_at.

get_next_by_created_at(*, field=<django.db.models.fields.DateTimeField: created_at>, is_next=True, **kwargs)

get_previous_by_created_at(*, field=<django.db.models.fields.DateTimeField: created_at>, is_next=False, **kwargs)

get_result_display(*, field=<django.db.models.fields.CharField: result>)

get_status_display(*, field=<django.db.models.fields.CharField: status>)

id

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

mark_aborted() → bool

Worker has aborted the task after request from UI.

Task will typically be in CREATED or RUNNING status.

mark_completed(result: str) → bool

Worker has finished executing the task.

mark_running() → bool

Worker has begun executing the task.

objects = <debusine.db.models.WorkRequestManager object>

result

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

started_at

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

status

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

task_data

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

task_name

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

worker

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.

worker_id

workspace

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.

workspace_id

class debusine.db.models.WorkRequestManager(*args, **kwargs)

Manager for WorkRequest model.

aborted() → QuerySet

Return a QuerySet of tasks in aborted status.

completed() → QuerySet

Return a QuerySet of tasks in completed status.

pending(exclude_assigned: bool = False, worker: Optional[Worker] = None) → QuerySet

Return a QuerySet of tasks in WorkRequest.Statuses.PENDING status.

QuerySet is ordered by created_at.

Filter out the assigned pending ones if exclude_assigned=True, and include only the WorkRequest for worker.

PENDING is the default status of a task on creation.

running(worker: Optional[Worker] = None) → QuerySet

Return a QuerySet of tasks in running status.

running_or_pending_exists(worker: Worker) → bool

Return True if there are running or pending work requests.

class debusine.db.models.Worker(*args, **kwargs)

Database model of a worker.

exception DoesNotExist

exception MultipleObjectsReturned

assigned_work_requests

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.

connected() → bool

Return True if the Worker is connected.

connected_at

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

dynamic_metadata

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

dynamic_metadata_updated_at

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_registered_at(*, field=<django.db.models.fields.DateTimeField: registered_at>, is_next=True, **kwargs)

get_previous_by_registered_at(*, field=<django.db.models.fields.DateTimeField: registered_at>, 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.

mark_connected() → None

Update and save relevant Worker fields after connecting.

mark_disconnected() → None

Update and save relevant Worker fields after disconnecting.

metadata() → dict

Return all metadata with static_metadata and dynamic_metadata merged.

If the same key is in static_metadata and dynamic_metadata: static_metadata takes priority.

name

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

objects = <debusine.db.models.WorkerManager object>

registered_at

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

set_dynamic_metadata(metadata: dict) → None

Save metadata and update dynamic_metadata_updated_at.

static_metadata

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

token

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.

token_id

class debusine.db.models.WorkerManager(*args, **kwargs)

Manager for Worker model.

connected() → QuerySet

Return connected workers.

classmethod create_with_fqdn(fqdn: str, token: str) → Worker

Return a new Worker with its name based on fqdn, with token.

get_worker_by_token_key_or_none(token_key: str) → Optional[Worker]

Return a Worker identified by its associated secret token.

get_worker_or_none(worker_name: str) → Optional[Worker]

Return the worker with worker_name or None.

waiting_for_work_request() → QuerySet

Return workers that can be assigned a new work request.

The workers without any associated pending or running work request don’t have anything to run right now and are thus waiting for a work request.

Worker’s token must be enabled.

class debusine.db.models.Workspace(*args, **kwargs)

Workspace model.

exception DoesNotExist

exception MultipleObjectsReturned

artifact_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.

default_file_store

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.

default_file_store_id

id

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

is_file_in_workspace(fileobj: File) → bool

Return True if fileobj is in any store available for Workspace.

name

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

objects = <debusine.db.models.WorkspaceManager object>

other_file_stores

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.

public

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

workrequest_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.

class debusine.db.models.WorkspaceManager(*args, **kwargs)

Manager for Workspace model.

classmethod create_with_name(name: str) → Workspace

Return a new Workspace with name and the default FileStore.

debusine.db.models.default_file_store() → FileStore

Return the default file store.

debusine.db.models.default_workspace() → Workspace

Return the default Workspace.