Update main.py

main.py

@@ -11,25 +11,32 @@ from sqlalchemy.ext.declarative import declarative_base
 
 client = InferenceClient("mistralai/Mixtral-8x7B-Instruct-v0.1")
 
-connection_string = "postgresql://neondb_owner:DsyRQ3YCe0BH@ep-spring-king-a1xyegni.ap-southeast-1.aws.neon.tech/neondb?sslmode=require"
+connection_string = "postgresql://neondb_owner:Pl8cWUu0iLHn@ep-tiny-haze-a1w7wrrg.ap-southeast-1.aws.neon.tech/neondb?sslmode=require"
 
 Base = declarative_base()
 
+class Stream(Base):
+    __tablename__ = 'streams'
+
+    name = Column(String, primary_key=True, nullable=False)
+
 class Mentor(Base):
     __tablename__ = 'mentors'
 
     id = Column(Integer, primary_key=True)
     mentor_name = Column(String)
-    profile_photo = Column(LargeBinary)  # Store mentor's profile photo as binary data
+    profile_photo = Column(LargeBinary)  
     description = Column(String)
     highest_degree = Column(String)
     expertise = Column(String)
     recent_project = Column(String)
     meeting_time = Column(String)
     fees = Column(String)
-    stream = Column(String)
+    stream_name = Column(String, ForeignKey('streams.name')) 
     country = Column(String)
     verified = Column(Boolean, default=False)
+ 
+    stream = relationship("Stream", backref="mentors") 
 
 engine = create_engine(connection_string)
 Session = sessionmaker(bind=engine)