kanban-app/backend/app/models/comment.py

from datetime import UTC, datetime

from app import db


class Comment(db.Model):
    """Comment model for card comments"""

    __tablename__ = "comments"

    id = db.Column(db.Integer, primary_key=True)
    text = db.Column(db.Text, nullable=False)

    # Foreign keys
    card_id = db.Column(
        db.Integer,
        db.ForeignKey("cards.id", ondelete="CASCADE"),
        nullable=False,
        index=True,
    )
    user_id = db.Column(
        db.Integer, db.ForeignKey("users.id"), nullable=False, index=True
    )

    # Timestamps
    created_at = db.Column(db.DateTime, default=lambda: datetime.now(UTC))
    updated_at = db.Column(
        db.DateTime,
        default=lambda: datetime.now(UTC),
        onupdate=lambda: datetime.now(UTC),
    )

    # Relationships
    attachments = db.relationship(
        "FileAttachment",
        foreign_keys="FileAttachment.attachable_id",
        primaryjoin="""and_(FileAttachment.attachable_id == Comment.id,
        FileAttachment.attachable_type == 'Comment')""",
        cascade="all, delete-orphan",
        lazy="dynamic",
        overlaps="attachments",
    )

    def to_dict(self):
        """Convert comment to dictionary"""
        return {
            "id": self.id,
            "text": self.text,
            "card_id": self.card_id,
            "user_id": self.user_id,
            "created_at": self.created_at.isoformat() if self.created_at else None,
            "updated_at": self.updated_at.isoformat() if self.updated_at else None,
        }

    def __repr__(self):
        return f"<Comment id={self.id} card_id={self.card_id}>"