import uuid
from pydantic import BaseModel, Field, field_validator
class Item(BaseModel):
"""
Domain Entity representing an Inventory Item.
"""
id: uuid.UUID = Field(default_factory=uuid.uuid4)
name: str = Field(..., min_length=1, max_length=100)
hostname: str = Field(..., min_length=1, max_length=100)
version: str = Field(..., min_length=1, max_length=100)
brand: str = Field(..., min_length=1, max_length=100)
model: str = Field(..., min_length=1, max_length=100)
serial_number: str = Field(..., min_length=1, max_length=100)
location: str = Field(..., min_length=1, max_length=100)
collection_id: uuid.UUID = Field(...)
is_active: bool = True
class Config:
from_attributes = True
@field_validator("name")
def name_must_not_be_empty(cls, v):
if not v.strip():
raise ValueError("Name must not be empty.")
return v
class Collection(BaseModel):
"""
Domain Entity representing a Collection of Inventory Items.
"""
id: uuid.UUID = Field(default_factory=uuid.uuid4)
name: str = Field(..., min_length=1, max_length=100)
description: str = Field(..., min_length=1, max_length=500)
is_active: bool = True
items: list["Item"] = Field(default_factory=list)
class Config:
from_attributes = True
@field_validator("name")
def name_must_not_be_empty(cls, v):
if not v.strip():
raise ValueError("Name must not be empty.")
return v
