1d312e5ff6
- Created FastAPI application with SQLite database - Implemented models for inventory items, categories, suppliers, and transactions - Added authentication system with JWT tokens - Implemented CRUD operations for all models - Set up Alembic for database migrations - Added comprehensive API documentation - Configured Ruff for code linting
212 lines
6.5 KiB
Python
212 lines
6.5 KiB
Python
from typing import Any, List, Optional
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from fastapi import APIRouter, Depends, HTTPException, Query, status
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from sqlalchemy.orm import Session
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from app import crud
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from app.api import deps
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from app.models.user import User
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from app.schemas.item import Item, ItemCreate, ItemUpdate
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router = APIRouter()
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@router.get("/", response_model=List[Item])
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def read_items(
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db: Session = Depends(deps.get_db),
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skip: int = 0,
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limit: int = 100,
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category_id: Optional[int] = None,
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supplier_id: Optional[int] = None,
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low_stock: Optional[bool] = False,
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current_user: User = Depends(deps.get_current_user),
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) -> Any:
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"""
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Retrieve inventory items with optional filtering.
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"""
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if low_stock:
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items = crud.item.get_low_stock(db, skip=skip, limit=limit)
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elif category_id:
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items = crud.item.get_by_category(db, category_id=category_id, skip=skip, limit=limit)
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elif supplier_id:
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items = crud.item.get_by_supplier(db, supplier_id=supplier_id, skip=skip, limit=limit)
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else:
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items = crud.item.get_multi(db, skip=skip, limit=limit)
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return items
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@router.post("/", response_model=Item, status_code=status.HTTP_201_CREATED)
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def create_item(
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*,
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db: Session = Depends(deps.get_db),
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item_in: ItemCreate,
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current_user: User = Depends(deps.get_current_user),
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) -> Any:
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"""
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Create new inventory item.
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"""
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# Check if item with the same SKU or barcode already exists
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if item_in.sku:
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item = crud.item.get_by_sku(db, sku=item_in.sku)
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if item:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="Item with this SKU already exists",
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)
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if item_in.barcode:
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item = crud.item.get_by_barcode(db, barcode=item_in.barcode)
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if item:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="Item with this barcode already exists",
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)
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# Validate category if provided
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if item_in.category_id and not crud.category.get(db, id=item_in.category_id):
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="The category doesn't exist",
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)
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# Validate supplier if provided
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if item_in.supplier_id and not crud.supplier.get(db, id=item_in.supplier_id):
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="The supplier doesn't exist",
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)
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item = crud.item.create(db, obj_in=item_in)
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return item
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@router.get("/{item_id}", response_model=Item)
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def read_item(
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*,
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db: Session = Depends(deps.get_db),
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item_id: int,
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current_user: User = Depends(deps.get_current_user),
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) -> Any:
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"""
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Get item by ID.
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"""
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item = crud.item.get(db, id=item_id)
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if not item:
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raise HTTPException(
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status_code=status.HTTP_404_NOT_FOUND,
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detail="Item not found",
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)
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return item
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@router.put("/{item_id}", response_model=Item)
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def update_item(
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*,
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db: Session = Depends(deps.get_db),
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item_id: int,
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item_in: ItemUpdate,
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current_user: User = Depends(deps.get_current_user),
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) -> Any:
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"""
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Update an item.
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"""
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item = crud.item.get(db, id=item_id)
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if not item:
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raise HTTPException(
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status_code=status.HTTP_404_NOT_FOUND,
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detail="Item not found",
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)
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# Check if SKU is being changed and if it already exists
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if item_in.sku and item_in.sku != item.sku:
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existing_item = crud.item.get_by_sku(db, sku=item_in.sku)
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if existing_item and existing_item.id != item_id:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="Item with this SKU already exists",
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)
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# Check if barcode is being changed and if it already exists
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if item_in.barcode and item_in.barcode != item.barcode:
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existing_item = crud.item.get_by_barcode(db, barcode=item_in.barcode)
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if existing_item and existing_item.id != item_id:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="Item with this barcode already exists",
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)
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# Validate category if provided
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if item_in.category_id and not crud.category.get(db, id=item_in.category_id):
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="The category doesn't exist",
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)
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# Validate supplier if provided
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if item_in.supplier_id and not crud.supplier.get(db, id=item_in.supplier_id):
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="The supplier doesn't exist",
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)
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item = crud.item.update(db, db_obj=item, obj_in=item_in)
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return item
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@router.delete("/{item_id}", status_code=status.HTTP_204_NO_CONTENT, response_model=None)
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def delete_item(
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*,
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db: Session = Depends(deps.get_db),
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item_id: int,
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current_user: User = Depends(deps.get_current_user),
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) -> Any:
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"""
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Delete an item.
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"""
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item = crud.item.get(db, id=item_id)
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if not item:
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raise HTTPException(
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status_code=status.HTTP_404_NOT_FOUND,
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detail="Item not found",
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)
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# Check if the item has any transactions
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transactions = crud.transaction.get_by_item(db, item_id=item_id, skip=0, limit=1)
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if transactions:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="Cannot delete item with transaction history",
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)
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crud.item.remove(db, id=item_id)
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return None
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@router.get("/search/", response_model=List[Item])
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def search_items(
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*,
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db: Session = Depends(deps.get_db),
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name: Optional[str] = Query(None, min_length=1),
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sku: Optional[str] = Query(None, min_length=1),
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barcode: Optional[str] = Query(None, min_length=1),
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current_user: User = Depends(deps.get_current_user),
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) -> Any:
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"""
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Search for items by name, SKU, or barcode.
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"""
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if sku:
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item = crud.item.get_by_sku(db, sku=sku)
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return [item] if item else []
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if barcode:
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item = crud.item.get_by_barcode(db, barcode=barcode)
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return [item] if item else []
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if name:
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items = db.query(crud.item.model).filter(
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crud.item.model.name.ilike(f"%{name}%")
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).all()
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return items
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# If no search parameters are provided, return an empty list
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return [] |