105 lines
3.0 KiB
Python
105 lines
3.0 KiB
Python
"""Helper functions for interacting with vendor database objects."""
|
|
|
|
from datetime import datetime
|
|
from typing import Optional
|
|
|
|
from sqlalchemy import func, select
|
|
from sqlalchemy.ext.asyncio import AsyncSession
|
|
|
|
from spoolman.api.v1.models import Vendor
|
|
from spoolman.database import models
|
|
from spoolman.database.utils import SortOrder, add_where_clause_str
|
|
from spoolman.exceptions import ItemNotFoundError
|
|
from spoolman.ws import websocket_manager
|
|
|
|
|
|
async def create(
|
|
*,
|
|
db: AsyncSession,
|
|
name: Optional[str] = None,
|
|
comment: Optional[str] = None,
|
|
) -> models.Vendor:
|
|
"""Add a new vendor to the database."""
|
|
db_item = models.Vendor(
|
|
name=name,
|
|
registered=datetime.utcnow().replace(microsecond=0),
|
|
comment=comment,
|
|
)
|
|
db.add(db_item)
|
|
await db.commit()
|
|
return db_item
|
|
|
|
|
|
async def get_by_id(db: AsyncSession, vendor_id: int) -> models.Vendor:
|
|
"""Get a vendor object from the database by the unique ID."""
|
|
vendor = await db.get(models.Vendor, vendor_id)
|
|
if vendor is None:
|
|
raise ItemNotFoundError(f"No vendor with ID {vendor_id} found.")
|
|
return vendor
|
|
|
|
|
|
async def find(
|
|
*,
|
|
db: AsyncSession,
|
|
name: Optional[str] = None,
|
|
sort_by: Optional[dict[str, SortOrder]] = None,
|
|
limit: Optional[int] = None,
|
|
offset: int = 0,
|
|
) -> tuple[list[models.Vendor], int]:
|
|
"""Find a list of vendor objects by search criteria.
|
|
|
|
Returns a tuple containing the list of items and the total count of matching items.
|
|
"""
|
|
stmt = select(models.Vendor)
|
|
|
|
stmt = add_where_clause_str(stmt, models.Vendor.name, name)
|
|
|
|
total_count = None
|
|
|
|
if limit is not None:
|
|
total_count_stmt = stmt.with_only_columns(func.count(), maintain_column_froms=True)
|
|
total_count = (await db.execute(total_count_stmt)).scalar()
|
|
|
|
stmt = stmt.offset(offset).limit(limit)
|
|
|
|
if sort_by is not None:
|
|
for fieldstr, order in sort_by.items():
|
|
field = getattr(models.Vendor, fieldstr)
|
|
if order == SortOrder.ASC:
|
|
stmt = stmt.order_by(field.asc())
|
|
elif order == SortOrder.DESC:
|
|
stmt = stmt.order_by(field.desc())
|
|
|
|
rows = await db.execute(stmt)
|
|
result = list(rows.scalars().all())
|
|
if total_count is None:
|
|
total_count = len(result)
|
|
|
|
return result, total_count
|
|
|
|
|
|
async def update(
|
|
*,
|
|
db: AsyncSession,
|
|
vendor_id: int,
|
|
data: dict,
|
|
) -> models.Vendor:
|
|
"""Update the fields of a vendor object."""
|
|
vendor = await get_by_id(db, vendor_id)
|
|
for k, v in data.items():
|
|
setattr(vendor, k, v)
|
|
await db.commit()
|
|
await vendor_changed(vendor)
|
|
return vendor
|
|
|
|
|
|
async def delete(db: AsyncSession, vendor_id: int) -> None:
|
|
"""Delete a vendor object."""
|
|
vendor = await get_by_id(db, vendor_id)
|
|
await db.delete(vendor)
|
|
|
|
|
|
async def vendor_changed(vendor: models.Vendor) -> None:
|
|
"""Notify websocket clients that a vendor has changed."""
|
|
await websocket_manager.send(("vendor", str(vendor.id)), Vendor.from_db(vendor).json())
|