Files
InvokeAI/invokeai/app/services/session_queue/session_queue_sqlite.py
psychedelicious c42d692ea6 feat: workflow library (#5148)
* chore: bump pydantic to 2.5.2

This release fixes pydantic/pydantic#8175 and allows us to use `JsonValue`

* fix(ui): exclude public/en.json from prettier config

* fix(workflow_records): fix SQLite workflow insertion to ignore duplicates

* feat(backend): update workflows handling

Update workflows handling for Workflow Library.

**Updated Workflow Storage**

"Embedded Workflows" are workflows associated with images, and are now only stored in the image files. "Library Workflows" are not associated with images, and are stored only in DB.

This works out nicely. We have always saved workflows to files, but recently began saving them to the DB in addition to in image files. When that happened, we stopped reading workflows from files, so all the workflows that only existed in images were inaccessible. With this change, access to those workflows is restored, and no workflows are lost.

**Updated Workflow Handling in Nodes**

Prior to this change, workflows were embedded in images by passing the whole workflow JSON to a special workflow field on a node. In the node's `invoke()` function, the node was able to access this workflow and save it with the image. This (inaccurately) models workflows as a property of an image and is rather awkward technically.

A workflow is now a property of a batch/session queue item. It is available in the InvocationContext and therefore available to all nodes during `invoke()`.

**Database Migrations**

Added a `SQLiteMigrator` class to handle database migrations. Migrations were needed to accomodate the DB-related changes in this PR. See the code for details.

The `images`, `workflows` and `session_queue` tables required migrations for this PR, and are using the new migrator. Other tables/services are still creating tables themselves. A followup PR will adapt them to use the migrator.

**Other/Support Changes**

- Add a `has_workflow` column to `images` table to indicate that the image has an embedded workflow.
- Add handling for retrieving the workflow from an image in python. The image file must be fetched, the workflow extracted, and then sent to client, avoiding needing the browser to parse the image file. With the `has_workflow` column, the UI knows if there is a workflow to be fetched, and only fetches when the user requests to load the workflow.
- Add route to get the workflow from an image
- Add CRUD service/routes for the library workflows
- `workflow_images` table and services removed (no longer needed now that embedded workflows are not in the DB)

* feat(ui): updated workflow handling (WIP)

Clientside updates for the backend workflow changes.

Includes roughed-out workflow library UI.

* feat: revert SQLiteMigrator class

Will pursue this in a separate PR.

* feat(nodes): do not overwrite custom node module names

Use a different, simpler method to detect if a node is custom.

* feat(nodes): restore WithWorkflow as no-op class

This class is deprecated and no longer needed. Set its workflow attr value to None (meaning it is now a no-op), and issue a warning when an invocation subclasses it.

* fix(nodes): fix get_workflow from queue item dict func

* feat(backend): add WorkflowRecordListItemDTO

This is the id, name, description, created at and updated at workflow columns/attrs. Used to display lists of workflowsl

* chore(ui): typegen

* feat(ui): add workflow loading, deleting to workflow library UI

* feat(ui): workflow library pagination button styles

* wip

* feat: workflow library WIP

- Save to library
- Duplicate
- Filter/sort
- UI/queries

* feat: workflow library - system graphs - wip

* feat(backend): sync system workflows to db

* fix: merge conflicts

* feat: simplify default workflows

- Rename "system" -> "default"
- Simplify syncing logic
- Update UI to match

* feat(workflows): update default workflows

- Update TextToImage_SD15
- Add TextToImage_SDXL
- Add README

* feat(ui): refine workflow list UI

* fix(workflow_records): typo

* fix(tests): fix tests

* feat(ui): clean up workflow library hooks

* fix(db): fix mis-ordered db cleanup step

It was happening before pruning queue items - should happen afterwards, else you have to restart the app again to free disk space made available by the pruning.

* feat(ui): tweak reset workflow editor translations

* feat(ui): split out workflow redux state

The `nodes` slice is a rather complicated slice. Removing `workflow` makes it a bit more reasonable.

Also helps to flatten state out a bit.

* docs: update default workflows README

* fix: tidy up unused files, unrelated changes

* fix(backend): revert unrelated service organisational changes

* feat(backend): workflow_records.get_many arg "filter_text" -> "query"

* feat(ui): use custom hook in current image buttons

Already in use elsewhere, forgot to use it here.

* fix(ui): remove commented out property

* fix(ui): fix workflow loading

- Different handling for loading from library vs external
- Fix bug where only nodes and edges loaded

* fix(ui): fix save/save-as workflow naming

* fix(ui): fix circular dependency

* fix(db): fix bug with releasing without lock in db.clean()

* fix(db): remove extraneous lock

* chore: bump ruff

* fix(workflow_records): default `category` to `WorkflowCategory.User`

This allows old workflows to validate when reading them from the db or image files.

* hide workflow library buttons if feature is disabled

---------

Co-authored-by: Mary Hipp <maryhipp@Marys-MacBook-Air.local>
2023-12-09 09:48:38 +11:00

817 lines
30 KiB
Python

import sqlite3
import threading
from typing import Optional, Union, cast
from fastapi_events.handlers.local import local_handler
from fastapi_events.typing import Event as FastAPIEvent
from invokeai.app.services.events.events_base import EventServiceBase
from invokeai.app.services.invoker import Invoker
from invokeai.app.services.session_queue.session_queue_base import SessionQueueBase
from invokeai.app.services.session_queue.session_queue_common import (
DEFAULT_QUEUE_ID,
QUEUE_ITEM_STATUS,
Batch,
BatchStatus,
CancelByBatchIDsResult,
CancelByQueueIDResult,
ClearResult,
EnqueueBatchResult,
IsEmptyResult,
IsFullResult,
PruneResult,
SessionQueueItem,
SessionQueueItemDTO,
SessionQueueItemNotFoundError,
SessionQueueStatus,
calc_session_count,
prepare_values_to_insert,
)
from invokeai.app.services.shared.pagination import CursorPaginatedResults
from invokeai.app.services.shared.sqlite.sqlite_database import SqliteDatabase
class SqliteSessionQueue(SessionQueueBase):
__invoker: Invoker
__conn: sqlite3.Connection
__cursor: sqlite3.Cursor
__lock: threading.RLock
def start(self, invoker: Invoker) -> None:
self.__invoker = invoker
self._set_in_progress_to_canceled()
prune_result = self.prune(DEFAULT_QUEUE_ID)
local_handler.register(event_name=EventServiceBase.queue_event, _func=self._on_session_event)
if prune_result.deleted > 0:
self.__invoker.services.logger.info(f"Pruned {prune_result.deleted} finished queue items")
def __init__(self, db: SqliteDatabase) -> None:
super().__init__()
self.__lock = db.lock
self.__conn = db.conn
self.__cursor = self.__conn.cursor()
self._create_tables()
def _match_event_name(self, event: FastAPIEvent, match_in: list[str]) -> bool:
return event[1]["event"] in match_in
async def _on_session_event(self, event: FastAPIEvent) -> FastAPIEvent:
event_name = event[1]["event"]
# This was a match statement, but match is not supported on python 3.9
if event_name == "graph_execution_state_complete":
await self._handle_complete_event(event)
elif event_name in ["invocation_error", "session_retrieval_error", "invocation_retrieval_error"]:
await self._handle_error_event(event)
elif event_name == "session_canceled":
await self._handle_cancel_event(event)
return event
async def _handle_complete_event(self, event: FastAPIEvent) -> None:
try:
item_id = event[1]["data"]["queue_item_id"]
# When a queue item has an error, we get an error event, then a completed event.
# Mark the queue item completed only if it isn't already marked completed, e.g.
# by a previously-handled error event.
queue_item = self.get_queue_item(item_id)
if queue_item.status not in ["completed", "failed", "canceled"]:
queue_item = self._set_queue_item_status(item_id=queue_item.item_id, status="completed")
except SessionQueueItemNotFoundError:
return
async def _handle_error_event(self, event: FastAPIEvent) -> None:
try:
item_id = event[1]["data"]["queue_item_id"]
error = event[1]["data"]["error"]
queue_item = self.get_queue_item(item_id)
# always set to failed if have an error, even if previously the item was marked completed or canceled
queue_item = self._set_queue_item_status(item_id=queue_item.item_id, status="failed", error=error)
except SessionQueueItemNotFoundError:
return
async def _handle_cancel_event(self, event: FastAPIEvent) -> None:
try:
item_id = event[1]["data"]["queue_item_id"]
queue_item = self.get_queue_item(item_id)
if queue_item.status not in ["completed", "failed", "canceled"]:
queue_item = self._set_queue_item_status(item_id=queue_item.item_id, status="canceled")
except SessionQueueItemNotFoundError:
return
def _create_tables(self) -> None:
"""Creates the session queue tables, indicies, and triggers"""
try:
self.__lock.acquire()
self.__cursor.execute(
"""--sql
CREATE TABLE IF NOT EXISTS session_queue (
item_id INTEGER PRIMARY KEY AUTOINCREMENT, -- used for ordering, cursor pagination
batch_id TEXT NOT NULL, -- identifier of the batch this queue item belongs to
queue_id TEXT NOT NULL, -- identifier of the queue this queue item belongs to
session_id TEXT NOT NULL UNIQUE, -- duplicated data from the session column, for ease of access
field_values TEXT, -- NULL if no values are associated with this queue item
session TEXT NOT NULL, -- the session to be executed
status TEXT NOT NULL DEFAULT 'pending', -- the status of the queue item, one of 'pending', 'in_progress', 'completed', 'failed', 'canceled'
priority INTEGER NOT NULL DEFAULT 0, -- the priority, higher is more important
error TEXT, -- any errors associated with this queue item
created_at DATETIME NOT NULL DEFAULT(STRFTIME('%Y-%m-%d %H:%M:%f', 'NOW')),
updated_at DATETIME NOT NULL DEFAULT(STRFTIME('%Y-%m-%d %H:%M:%f', 'NOW')), -- updated via trigger
started_at DATETIME, -- updated via trigger
completed_at DATETIME -- updated via trigger, completed items are cleaned up on application startup
-- Ideally this is a FK, but graph_executions uses INSERT OR REPLACE, and REPLACE triggers the ON DELETE CASCADE...
-- FOREIGN KEY (session_id) REFERENCES graph_executions (id) ON DELETE CASCADE
);
"""
)
self.__cursor.execute(
"""--sql
CREATE UNIQUE INDEX IF NOT EXISTS idx_session_queue_item_id ON session_queue(item_id);
"""
)
self.__cursor.execute(
"""--sql
CREATE UNIQUE INDEX IF NOT EXISTS idx_session_queue_session_id ON session_queue(session_id);
"""
)
self.__cursor.execute(
"""--sql
CREATE INDEX IF NOT EXISTS idx_session_queue_batch_id ON session_queue(batch_id);
"""
)
self.__cursor.execute(
"""--sql
CREATE INDEX IF NOT EXISTS idx_session_queue_created_priority ON session_queue(priority);
"""
)
self.__cursor.execute(
"""--sql
CREATE INDEX IF NOT EXISTS idx_session_queue_created_status ON session_queue(status);
"""
)
self.__cursor.execute(
"""--sql
CREATE TRIGGER IF NOT EXISTS tg_session_queue_completed_at
AFTER UPDATE OF status ON session_queue
FOR EACH ROW
WHEN
NEW.status = 'completed'
OR NEW.status = 'failed'
OR NEW.status = 'canceled'
BEGIN
UPDATE session_queue
SET completed_at = STRFTIME('%Y-%m-%d %H:%M:%f', 'NOW')
WHERE item_id = NEW.item_id;
END;
"""
)
self.__cursor.execute(
"""--sql
CREATE TRIGGER IF NOT EXISTS tg_session_queue_started_at
AFTER UPDATE OF status ON session_queue
FOR EACH ROW
WHEN
NEW.status = 'in_progress'
BEGIN
UPDATE session_queue
SET started_at = STRFTIME('%Y-%m-%d %H:%M:%f', 'NOW')
WHERE item_id = NEW.item_id;
END;
"""
)
self.__cursor.execute(
"""--sql
CREATE TRIGGER IF NOT EXISTS tg_session_queue_updated_at
AFTER UPDATE
ON session_queue FOR EACH ROW
BEGIN
UPDATE session_queue
SET updated_at = STRFTIME('%Y-%m-%d %H:%M:%f', 'NOW')
WHERE item_id = old.item_id;
END;
"""
)
self.__cursor.execute("PRAGMA table_info(session_queue)")
columns = [column[1] for column in self.__cursor.fetchall()]
if "workflow" not in columns:
self.__cursor.execute(
"""--sql
ALTER TABLE session_queue ADD COLUMN workflow TEXT;
"""
)
self.__conn.commit()
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
def _set_in_progress_to_canceled(self) -> None:
"""
Sets all in_progress queue items to canceled. Run on app startup, not associated with any queue.
This is necessary because the invoker may have been killed while processing a queue item.
"""
try:
self.__lock.acquire()
self.__cursor.execute(
"""--sql
UPDATE session_queue
SET status = 'canceled'
WHERE status = 'in_progress';
"""
)
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
def _get_current_queue_size(self, queue_id: str) -> int:
"""Gets the current number of pending queue items"""
self.__cursor.execute(
"""--sql
SELECT count(*)
FROM session_queue
WHERE
queue_id = ?
AND status = 'pending'
""",
(queue_id,),
)
return cast(int, self.__cursor.fetchone()[0])
def _get_highest_priority(self, queue_id: str) -> int:
"""Gets the highest priority value in the queue"""
self.__cursor.execute(
"""--sql
SELECT MAX(priority)
FROM session_queue
WHERE
queue_id = ?
AND status = 'pending'
""",
(queue_id,),
)
return cast(Union[int, None], self.__cursor.fetchone()[0]) or 0
def enqueue_batch(self, queue_id: str, batch: Batch, prepend: bool) -> EnqueueBatchResult:
try:
self.__lock.acquire()
# TODO: how does this work in a multi-user scenario?
current_queue_size = self._get_current_queue_size(queue_id)
max_queue_size = self.__invoker.services.configuration.get_config().max_queue_size
max_new_queue_items = max_queue_size - current_queue_size
priority = 0
if prepend:
priority = self._get_highest_priority(queue_id) + 1
requested_count = calc_session_count(batch)
values_to_insert = prepare_values_to_insert(
queue_id=queue_id,
batch=batch,
priority=priority,
max_new_queue_items=max_new_queue_items,
)
enqueued_count = len(values_to_insert)
if requested_count > enqueued_count:
values_to_insert = values_to_insert[:max_new_queue_items]
self.__cursor.executemany(
"""--sql
INSERT INTO session_queue (queue_id, session, session_id, batch_id, field_values, priority, workflow)
VALUES (?, ?, ?, ?, ?, ?, ?)
""",
values_to_insert,
)
self.__conn.commit()
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
enqueue_result = EnqueueBatchResult(
queue_id=queue_id,
requested=requested_count,
enqueued=enqueued_count,
batch=batch,
priority=priority,
)
self.__invoker.services.events.emit_batch_enqueued(enqueue_result)
return enqueue_result
def dequeue(self) -> Optional[SessionQueueItem]:
try:
self.__lock.acquire()
self.__cursor.execute(
"""--sql
SELECT *
FROM session_queue
WHERE status = 'pending'
ORDER BY
priority DESC,
item_id ASC
LIMIT 1
"""
)
result = cast(Union[sqlite3.Row, None], self.__cursor.fetchone())
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
if result is None:
return None
queue_item = SessionQueueItem.queue_item_from_dict(dict(result))
queue_item = self._set_queue_item_status(item_id=queue_item.item_id, status="in_progress")
return queue_item
def get_next(self, queue_id: str) -> Optional[SessionQueueItem]:
try:
self.__lock.acquire()
self.__cursor.execute(
"""--sql
SELECT *
FROM session_queue
WHERE
queue_id = ?
AND status = 'pending'
ORDER BY
priority DESC,
created_at ASC
LIMIT 1
""",
(queue_id,),
)
result = cast(Union[sqlite3.Row, None], self.__cursor.fetchone())
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
if result is None:
return None
return SessionQueueItem.queue_item_from_dict(dict(result))
def get_current(self, queue_id: str) -> Optional[SessionQueueItem]:
try:
self.__lock.acquire()
self.__cursor.execute(
"""--sql
SELECT *
FROM session_queue
WHERE
queue_id = ?
AND status = 'in_progress'
LIMIT 1
""",
(queue_id,),
)
result = cast(Union[sqlite3.Row, None], self.__cursor.fetchone())
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
if result is None:
return None
return SessionQueueItem.queue_item_from_dict(dict(result))
def _set_queue_item_status(
self, item_id: int, status: QUEUE_ITEM_STATUS, error: Optional[str] = None
) -> SessionQueueItem:
try:
self.__lock.acquire()
self.__cursor.execute(
"""--sql
UPDATE session_queue
SET status = ?, error = ?
WHERE item_id = ?
""",
(status, error, item_id),
)
self.__conn.commit()
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
queue_item = self.get_queue_item(item_id)
batch_status = self.get_batch_status(queue_id=queue_item.queue_id, batch_id=queue_item.batch_id)
queue_status = self.get_queue_status(queue_id=queue_item.queue_id)
self.__invoker.services.events.emit_queue_item_status_changed(
session_queue_item=queue_item,
batch_status=batch_status,
queue_status=queue_status,
)
return queue_item
def is_empty(self, queue_id: str) -> IsEmptyResult:
try:
self.__lock.acquire()
self.__cursor.execute(
"""--sql
SELECT count(*)
FROM session_queue
WHERE queue_id = ?
""",
(queue_id,),
)
is_empty = cast(int, self.__cursor.fetchone()[0]) == 0
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
return IsEmptyResult(is_empty=is_empty)
def is_full(self, queue_id: str) -> IsFullResult:
try:
self.__lock.acquire()
self.__cursor.execute(
"""--sql
SELECT count(*)
FROM session_queue
WHERE queue_id = ?
""",
(queue_id,),
)
max_queue_size = self.__invoker.services.configuration.max_queue_size
is_full = cast(int, self.__cursor.fetchone()[0]) >= max_queue_size
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
return IsFullResult(is_full=is_full)
def delete_queue_item(self, item_id: int) -> SessionQueueItem:
queue_item = self.get_queue_item(item_id=item_id)
try:
self.__lock.acquire()
self.__cursor.execute(
"""--sql
DELETE FROM session_queue
WHERE
item_id = ?
""",
(item_id,),
)
self.__conn.commit()
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
return queue_item
def clear(self, queue_id: str) -> ClearResult:
try:
self.__lock.acquire()
self.__cursor.execute(
"""--sql
SELECT COUNT(*)
FROM session_queue
WHERE queue_id = ?
""",
(queue_id,),
)
count = self.__cursor.fetchone()[0]
self.__cursor.execute(
"""--sql
DELETE
FROM session_queue
WHERE queue_id = ?
""",
(queue_id,),
)
self.__conn.commit()
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
self.__invoker.services.events.emit_queue_cleared(queue_id)
return ClearResult(deleted=count)
def prune(self, queue_id: str) -> PruneResult:
try:
where = """--sql
WHERE
queue_id = ?
AND (
status = 'completed'
OR status = 'failed'
OR status = 'canceled'
)
"""
self.__lock.acquire()
self.__cursor.execute(
f"""--sql
SELECT COUNT(*)
FROM session_queue
{where};
""",
(queue_id,),
)
count = self.__cursor.fetchone()[0]
self.__cursor.execute(
f"""--sql
DELETE
FROM session_queue
{where};
""",
(queue_id,),
)
self.__conn.commit()
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
return PruneResult(deleted=count)
def cancel_queue_item(self, item_id: int, error: Optional[str] = None) -> SessionQueueItem:
queue_item = self.get_queue_item(item_id)
if queue_item.status not in ["canceled", "failed", "completed"]:
status = "failed" if error is not None else "canceled"
queue_item = self._set_queue_item_status(item_id=item_id, status=status, error=error) # type: ignore [arg-type] # mypy seems to not narrow the Literals here
self.__invoker.services.queue.cancel(queue_item.session_id)
self.__invoker.services.events.emit_session_canceled(
queue_item_id=queue_item.item_id,
queue_id=queue_item.queue_id,
queue_batch_id=queue_item.batch_id,
graph_execution_state_id=queue_item.session_id,
)
return queue_item
def cancel_by_batch_ids(self, queue_id: str, batch_ids: list[str]) -> CancelByBatchIDsResult:
try:
current_queue_item = self.get_current(queue_id)
self.__lock.acquire()
placeholders = ", ".join(["?" for _ in batch_ids])
where = f"""--sql
WHERE
queue_id == ?
AND batch_id IN ({placeholders})
AND status != 'canceled'
AND status != 'completed'
AND status != 'failed'
"""
params = [queue_id] + batch_ids
self.__cursor.execute(
f"""--sql
SELECT COUNT(*)
FROM session_queue
{where};
""",
tuple(params),
)
count = self.__cursor.fetchone()[0]
self.__cursor.execute(
f"""--sql
UPDATE session_queue
SET status = 'canceled'
{where};
""",
tuple(params),
)
self.__conn.commit()
if current_queue_item is not None and current_queue_item.batch_id in batch_ids:
self.__invoker.services.queue.cancel(current_queue_item.session_id)
self.__invoker.services.events.emit_session_canceled(
queue_item_id=current_queue_item.item_id,
queue_id=current_queue_item.queue_id,
queue_batch_id=current_queue_item.batch_id,
graph_execution_state_id=current_queue_item.session_id,
)
batch_status = self.get_batch_status(queue_id=queue_id, batch_id=current_queue_item.batch_id)
queue_status = self.get_queue_status(queue_id=queue_id)
self.__invoker.services.events.emit_queue_item_status_changed(
session_queue_item=current_queue_item,
batch_status=batch_status,
queue_status=queue_status,
)
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
return CancelByBatchIDsResult(canceled=count)
def cancel_by_queue_id(self, queue_id: str) -> CancelByQueueIDResult:
try:
current_queue_item = self.get_current(queue_id)
self.__lock.acquire()
where = """--sql
WHERE
queue_id is ?
AND status != 'canceled'
AND status != 'completed'
AND status != 'failed'
"""
params = [queue_id]
self.__cursor.execute(
f"""--sql
SELECT COUNT(*)
FROM session_queue
{where};
""",
tuple(params),
)
count = self.__cursor.fetchone()[0]
self.__cursor.execute(
f"""--sql
UPDATE session_queue
SET status = 'canceled'
{where};
""",
tuple(params),
)
self.__conn.commit()
if current_queue_item is not None and current_queue_item.queue_id == queue_id:
self.__invoker.services.queue.cancel(current_queue_item.session_id)
self.__invoker.services.events.emit_session_canceled(
queue_item_id=current_queue_item.item_id,
queue_id=current_queue_item.queue_id,
queue_batch_id=current_queue_item.batch_id,
graph_execution_state_id=current_queue_item.session_id,
)
batch_status = self.get_batch_status(queue_id=queue_id, batch_id=current_queue_item.batch_id)
queue_status = self.get_queue_status(queue_id=queue_id)
self.__invoker.services.events.emit_queue_item_status_changed(
session_queue_item=current_queue_item,
batch_status=batch_status,
queue_status=queue_status,
)
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
return CancelByQueueIDResult(canceled=count)
def get_queue_item(self, item_id: int) -> SessionQueueItem:
try:
self.__lock.acquire()
self.__cursor.execute(
"""--sql
SELECT * FROM session_queue
WHERE
item_id = ?
""",
(item_id,),
)
result = cast(Union[sqlite3.Row, None], self.__cursor.fetchone())
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
if result is None:
raise SessionQueueItemNotFoundError(f"No queue item with id {item_id}")
return SessionQueueItem.queue_item_from_dict(dict(result))
def list_queue_items(
self,
queue_id: str,
limit: int,
priority: int,
cursor: Optional[int] = None,
status: Optional[QUEUE_ITEM_STATUS] = None,
) -> CursorPaginatedResults[SessionQueueItemDTO]:
try:
item_id = cursor
self.__lock.acquire()
query = """--sql
SELECT item_id,
status,
priority,
field_values,
error,
created_at,
updated_at,
completed_at,
started_at,
session_id,
batch_id,
queue_id
FROM session_queue
WHERE queue_id = ?
"""
params: list[Union[str, int]] = [queue_id]
if status is not None:
query += """--sql
AND status = ?
"""
params.append(status)
if item_id is not None:
query += """--sql
AND (priority < ?) OR (priority = ? AND item_id > ?)
"""
params.extend([priority, priority, item_id])
query += """--sql
ORDER BY
priority DESC,
item_id ASC
LIMIT ?
"""
params.append(limit + 1)
self.__cursor.execute(query, params)
results = cast(list[sqlite3.Row], self.__cursor.fetchall())
items = [SessionQueueItemDTO.queue_item_dto_from_dict(dict(result)) for result in results]
has_more = False
if len(items) > limit:
# remove the extra item
items.pop()
has_more = True
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
return CursorPaginatedResults(items=items, limit=limit, has_more=has_more)
def get_queue_status(self, queue_id: str) -> SessionQueueStatus:
try:
self.__lock.acquire()
self.__cursor.execute(
"""--sql
SELECT status, count(*)
FROM session_queue
WHERE queue_id = ?
GROUP BY status
""",
(queue_id,),
)
counts_result = cast(list[sqlite3.Row], self.__cursor.fetchall())
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
current_item = self.get_current(queue_id=queue_id)
total = sum(row[1] for row in counts_result)
counts: dict[str, int] = {row[0]: row[1] for row in counts_result}
return SessionQueueStatus(
queue_id=queue_id,
item_id=current_item.item_id if current_item else None,
session_id=current_item.session_id if current_item else None,
batch_id=current_item.batch_id if current_item else None,
pending=counts.get("pending", 0),
in_progress=counts.get("in_progress", 0),
completed=counts.get("completed", 0),
failed=counts.get("failed", 0),
canceled=counts.get("canceled", 0),
total=total,
)
def get_batch_status(self, queue_id: str, batch_id: str) -> BatchStatus:
try:
self.__lock.acquire()
self.__cursor.execute(
"""--sql
SELECT status, count(*)
FROM session_queue
WHERE
queue_id = ?
AND batch_id = ?
GROUP BY status
""",
(queue_id, batch_id),
)
result = cast(list[sqlite3.Row], self.__cursor.fetchall())
total = sum(row[1] for row in result)
counts: dict[str, int] = {row[0]: row[1] for row in result}
except Exception:
self.__conn.rollback()
raise
finally:
self.__lock.release()
return BatchStatus(
batch_id=batch_id,
queue_id=queue_id,
pending=counts.get("pending", 0),
in_progress=counts.get("in_progress", 0),
completed=counts.get("completed", 0),
failed=counts.get("failed", 0),
canceled=counts.get("canceled", 0),
total=total,
)