Revize 4911f0ea

re #9577 Api code documentation.

server/sql_app/database.py

@@ -1 +1 @@
 from sqlalchemy import create_engine
 from sqlalchemy.ext.declarative import declarative_base
 from sqlalchemy.orm import sessionmaker
-'''
+
+
+
+# used mainly for testing purposes. Creates local sqllite data file
 SQLALCHEMY_DATABASE_URL = "sqlite:///./sql_app.db"
 engine = create_engine(
     SQLALCHEMY_DATABASE_URL, connect_args={"check_same_thread": False}
 )
 '''
+
+# Defining connection url with postgresql database
 SQLALCHEMY_DATABASE_URL = "postgresql://postgres:postgres@10.5.0.5:5432/usb_api_db"
 
+# Creating engine for database communication
 engine = create_engine(
     SQLALCHEMY_DATABASE_URL
 )
-
+'''
+# Session maker for data transmissions
 SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
 
 Base = declarative_base()