add web

app/models/exchange_offer.py

@@ -0,0 +1,54 @@
+from app.extensions import db
+from datetime import datetime, timedelta
+
+class ExchangeOffer(db.Model):
+    id = db.Column(db.BigInteger, primary_key=True, autoincrement=True)
+    creator_id = db.Column(db.BigInteger, db.ForeignKey('user.id'), nullable=False, index=True)
+    creator = db.relationship('User', backref=db.backref('exchange_offers', lazy=True), foreign_keys=[creator_id], uselist=False)
+
+    offer_value = db.Column(db.BigInteger, nullable=False) # Amount of currency the creator is sending 
+    receive_value = db.Column(db.BigInteger, nullable=False) # Amount of currency the creator is receiving
+
+    offer_currency_type = db.Column(db.SmallInteger, nullable=False) # Currency type of the offer value, 0 = Robux, 1 = Tix
+    # Recieve currency type is the opposite of the offer currency type
+
+    reciever_id = db.Column(db.BigInteger, db.ForeignKey('user.id'), nullable=True, index=True) # If the offer is accepted by someone, this will be set to the user's id
+    reciever = db.relationship('User', backref=db.backref('exchange_offers_recieved', lazy=True), foreign_keys=[reciever_id], uselist=False)
+
+    created_at = db.Column(db.DateTime, nullable=False)
+    expires_at = db.Column(db.DateTime, nullable=False)
+
+    ratio = db.Column(db.Float, nullable=False, default=0) # The ratio of the offer value to the receive value
+    worth = db.Column(db.Float, nullable=False, default=0, index = True)
+
+    def __init___(
+        self,
+        creator_id,
+        offer_value,
+        receive_value,
+        offer_currency_type=0, # Robux
+        reciever_id=None,
+        ratio = None,
+        created_at=None,
+        expires_at=None
+    ):
+        if created_at is None:
+            created_at = datetime.utcnow()
+        
+        if expires_at is None:
+            expires_at = datetime.utcnow() + timedelta(days=31)
+
+        self.creator_id = creator_id
+        self.offer_value = offer_value
+        self.receive_value = receive_value
+        self.offer_currency_type = offer_currency_type
+        self.reciever_id = reciever_id
+        self.created_at = created_at
+        self.expires_at = expires_at
+
+        if ratio is None:
+            self.ratio = (offer_value / receive_value) if offer_currency_type == 0 else (receive_value / offer_value)
+        else:
+            self.ratio = ratio
+    def __repr__(self):
+        return '<ExchangeOffer %r>' % self.id