58 lines
1.9 KiB
Python
58 lines
1.9 KiB
Python
from typing import List, Optional, TYPE_CHECKING
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if TYPE_CHECKING:
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from .inventory import Inventory
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from sqlalchemy import Identity, Integer, Unicode
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from . import db
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class Brand(db.Model):
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__tablename__ = 'Brands'
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id: Mapped[int] = mapped_column("ID", Integer, Identity(start=1, increment=1), primary_key=True)
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name: Mapped[Optional[str]] = mapped_column("Brand", Unicode(255), nullable=True)
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inventory: Mapped[List['Inventory']] = relationship('Inventory', back_populates='brand')
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def __init__(self, name: Optional[str] = None):
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self.name = name
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def __repr__(self):
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return f"<Brand(id={self.id}, name={repr(self.name)})>"
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def serialize(self):
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return {
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'id': self.id,
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'name': self.name
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}
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@classmethod
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def sync_from_state(cls, submitted_items: list[dict]):
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"""
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Syncs the Brand table with the provided list of dictionaries.
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Adds new brands and removes brands that are not in the list.
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"""
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submitted = {
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str(item.get("name", "")).strip()
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for item in submitted_items
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if isinstance(item, dict) and str(item.get("name", "")).strip()
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}
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existing_query = db.session.query(cls)
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existing = {brand.name: brand for brand in existing_query.all()}
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existing_names = set(existing.keys())
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print(f"Existing brands: {existing_names}")
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print(f"Submitted brands: {submitted}")
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print(f"Brands to add: {submitted - existing_names}")
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print(f"Brands to remove: {existing_names - submitted}")
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for name in submitted - existing_names:
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db.session.add(cls(name=name))
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print(f"➕ Adding brand: {name}")
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for name in existing_names - submitted:
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db.session.delete(existing[name])
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print(f"🗑️ Removing brand: {name}")
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