Updated panels_data.py based on feedback

- Changed to work as a function and abstracted the queries to allow Solar Panel to work as a class

panels_data.py

@@ -0,0 +1,143 @@
+from sqlalchemy import create_engine, Column, Integer, String, Float
+from sqlalchemy.orm import declarative_base, sessionmaker
+from sqlalchemy.engine import URL
+
+Base = declarative_base()
+
+
+# creating Panel class to declare the structure of the database table and define what the entries look like
+class Panel(Base):
+    __tablename__ = "panels_data"
+
+    id = Column(Integer(), primary_key=True, autoincrement=True)
+    name = Column(String(100), nullable=False, unique=True)
+    stack = Column(Integer(), nullable=False)
+    efficiency = Column(Float(), nullable=False)
+    num_panels = Column(Integer(), nullable=False)
+    tilt = Column(Float(), nullable=False)
+
+
+def create_panel_table(db_user, db_password, db_host, db_name):
+    # connecting to database
+    engine = create_engine(
+        f"postgresql+psycopg2://{db_user}:{db_password}@{db_host}/{db_name}"
+    )
+
+    # creates corresponding tables
+    Base.metadata.create_all(engine)
+
+    # create session
+    Session = sessionmaker(bind=engine)
+    session = Session()
+
+    # setting entry values
+    panel_data = [
+        {
+            "name": "Back Left 1",
+            "stack": 7,
+            "efficiency": 0.25,
+            "num_panels": 28,
+            "tilt": -8.28,
+        },
+        {
+            "name": "Back Right 1",
+            "stack": 8,
+            "efficiency": 0.25,
+            "num_panels": 28,
+            "tilt": -8.28,
+        },
+        {
+            "name": "Back Middle 1",
+            "stack": 3,
+            "efficiency": 0.25,
+            "num_panels": 12,
+            "tilt": -8.06,
+        },
+        {
+            "name": "Back Left 2",
+            "stack": 9,
+            "efficiency": 0.25,
+            "num_panels": 28,
+            "tilt": -5.21,
+        },
+        {
+            "name": "Back Right 2",
+            "stack": 10,
+            "efficiency": 0.25,
+            "num_panels": 28,
+            "tilt": -5.21,
+        },
+        {
+            "name": "Middle Left 1",
+            "stack": 15,
+            "efficiency": 0.25,
+            "num_panels": 18,
+            "tilt": -2.14,
+        },
+        {
+            "name": "Middle Right 1",
+            "stack": 16,
+            "efficiency": 0.25,
+            "num_panels": 18,
+            "tilt": -2.14,
+        },
+        {
+            "name": "Middle Left 2",
+            "stack": 4,
+            "efficiency": 0.25,
+            "num_panels": 10,
+            "tilt": 0.77,
+        },
+        {
+            "name": "Middle Right 2",
+            "stack": 4,
+            "efficiency": 0.25,
+            "num_panels": 10,
+            "tilt": 0.77,
+        },
+        {
+            "name": "Front Left",
+            "stack": 13,
+            "efficiency": 0.25,
+            "num_panels": 21,
+            "tilt": 5.13,
+        },
+        {
+            "name": "Front Right",
+            "stack": 2,
+            "efficiency": 0.25,
+            "num_panels": 21,
+            "tilt": 5.13,
+        },
+        {
+            "name": "Front Middle",
+            "stack": 11,
+            "efficiency": 0.25,
+            "num_panels": 16,
+            "tilt": 8.75,
+        },
+    ]
+    # unpacking each entry to create a Panel instance and adding to table
+    for data in panel_data:
+        panel = Panel(**data)
+        session.add(panel)
+
+    # upload to database
+    session.commit()
+    print("Table added successfully.")
+    # disconnect
+    engine.dispose()
+
+
+def main(db_user, db_password, db_host, db_name):
+    print("Uploading solar panel data into panel_data...")
+    create_panel_table(db_user, db_password, db_host, db_name)
+
+
+# allows it to be run as a script
+if __name__ == "__main__":
+    db_user = ""
+    db_password = ""
+    db_host = ""
+    db_name = ""
+    main(db_user, db_password, db_host, db_name)