"""Column model."""
from sqlalchemy import Column, Integer, String, ForeignKey, DateTime
from sqlalchemy.orm import relationship
from datetime import datetime
from app.database import Base

class Column(Base):
    """Column model."""
    __tablename__ = "columns"

    id = Column(Integer, primary_key=True, index=True)
    name = Column(String(255), nullable=False)
    field_type = Column(String(50), nullable=False)  # text, number, date, select, etc.
    table_id = Column(Integer, ForeignKey("tables.id"), nullable=False)
    position = Column(Integer, default=0)
    created_at = Column(DateTime, default=datetime.utcnow)

    table = relationship("Table", back_populates="columns")
    records = relationship("Record", back_populates="column")