Working base version

src/main/db_session.py

@@ -0,0 +1,26 @@
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+import sys
+sys.path.append('../../../../../src')
+
+from src.main.configs import Configs, DATABASE_USERNAME, DATABASE_PASSWORD, DATABASE_HOST, DATABASE_NAME
+
+'''
+Stores a database session for use throughout the application.  Must be initialized at startup before any database calls
+are made and AFTER the Configurations are setup.
+
+This shouldn't need to be touched after startup.  To use, see the sqlalchemy docs...or just start by calling Session()
+and then use it to handle the necessary CRUD operations.
+
+You should NOT instantiate this in any method except the main application runner
+'''
+class DatabaseSession():
+    session = None
+
+    def __init__(self):
+        config_map = Configs.configs
+        db_string = 'postgresql://%s:%s@%s/%s' % \
+                    (config_map[DATABASE_USERNAME], config_map[DATABASE_PASSWORD], config_map[DATABASE_HOST], config_map[DATABASE_NAME])
+        Session = sessionmaker(create_engine(db_string))
+        DatabaseSession.session = Session()