35 lines
1.7 KiB
Python
35 lines
1.7 KiB
Python
"""Seller reviews — left by buyers after a listing is marked sold."""
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from datetime import datetime
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from app.extensions import db
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class Review(db.Model):
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__tablename__ = "reviews"
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id = db.Column(db.BigInteger().with_variant(db.Integer, "sqlite"),
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primary_key=True, autoincrement=True)
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listing_id = db.Column(db.BigInteger().with_variant(db.Integer, "sqlite"),
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db.ForeignKey("listings.id"), nullable=False, index=True)
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author_id = db.Column(db.BigInteger().with_variant(db.Integer, "sqlite"),
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db.ForeignKey("users.id"), nullable=False, index=True)
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seller_id = db.Column(db.BigInteger().with_variant(db.Integer, "sqlite"),
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db.ForeignKey("users.id"), nullable=False, index=True)
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rating = db.Column(db.SmallInteger, nullable=False) # 1–5
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body = db.Column(db.Text, nullable=True)
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created_at = db.Column(db.DateTime, default=datetime.utcnow, nullable=False)
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listing = db.relationship("Listing",
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backref=db.backref("reviews", lazy="dynamic"))
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author = db.relationship("User", foreign_keys=[author_id],
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backref=db.backref("reviews_written", lazy="dynamic"))
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seller = db.relationship("User", foreign_keys=[seller_id],
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backref=db.backref("reviews_received", lazy="dynamic"))
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__table_args__ = (
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db.UniqueConstraint("listing_id", "author_id", name="uq_review_listing_author"),
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db.CheckConstraint("rating BETWEEN 1 AND 5", name="ck_review_rating"),
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)
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def __repr__(self):
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return f"<Review L{self.listing_id} by u{self.author_id} {self.rating}*>"
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