06/09 Update a customer AI chatbot and support form submision

app/models/support.py

@@ -0,0 +1,41 @@
+from app import db
+from app.utils.time_utils import now_eastern
+
+
+class SupportTicket(db.Model):
+    __tablename__ = 'support_tickets'
+
+    id          = db.Column(db.Integer, primary_key=True)
+    customer_id = db.Column(db.Integer, db.ForeignKey('users.id', ondelete='SET NULL'), nullable=True)
+    facility_id = db.Column(db.Integer, db.ForeignKey('facilities.id', ondelete='SET NULL'), nullable=True)
+    subject     = db.Column(db.String(200), nullable=False)
+    body        = db.Column(db.Text, nullable=False)
+    status      = db.Column(db.String(20), nullable=False, default='open')  # open / answered / closed
+    created_at  = db.Column(db.DateTime, default=now_eastern, nullable=False)
+
+    customer = db.relationship('User',     foreign_keys=[customer_id], backref='support_tickets')
+    facility = db.relationship('Facility', foreign_keys=[facility_id], backref='support_tickets')
+    replies  = db.relationship(
+        'SupportTicketReply', backref='ticket',
+        cascade='all, delete-orphan',
+        order_by='SupportTicketReply.created_at',
+        lazy='dynamic',
+    )
+
+    def __repr__(self):
+        return f'<SupportTicket {self.id} [{self.status}]>'
+
+
+class SupportTicketReply(db.Model):
+    __tablename__ = 'support_ticket_replies'
+
+    id         = db.Column(db.Integer, primary_key=True)
+    ticket_id  = db.Column(db.Integer, db.ForeignKey('support_tickets.id', ondelete='CASCADE'), nullable=False)
+    user_id    = db.Column(db.Integer, db.ForeignKey('users.id', ondelete='SET NULL'), nullable=True)
+    body       = db.Column(db.Text, nullable=False)
+    created_at = db.Column(db.DateTime, default=now_eastern, nullable=False)
+
+    author = db.relationship('User', foreign_keys=[user_id])
+
+    def __repr__(self):
+        return f'<SupportTicketReply {self.id} ticket={self.ticket_id}>'