from datetime import datetime
from extensions import db


class DynamicTable(db.Model):
    __tablename__ = 'dynamic_tables'
    id = db.Column(db.Integer, primary_key=True)
    table_name = db.Column(db.String(255), unique=True, nullable=False)
    description = db.Column(db.String(255), nullable=True)
    created_at = db.Column(db.DateTime, default=datetime.now)

    # Relacionamento com DynamicColumn (especificando foreign_keys para resolver o conflito)
    columns = db.relationship(
        'DynamicColumn',
        backref='dynamic_table',
        lazy=True,
        foreign_keys='DynamicColumn.table_id'
    )