refactored table creation into seperate function

.gitignore

@@ -1,4 +1,5 @@
 data/
 *__pycache__
 *env
-*.code-workspace
+*.code-workspace
+sandbox/

src/db.py

@@ -52,6 +52,14 @@ class RecipeIngredientParts(Base):
     ingredient = Column(String)
     supplement = Column(String)
 
+class IngredientConnection(Base):
+    __tablename__ = 'IngredientConnection'
+    
+    ingredient_a = Column(String, primary_key = True)
+    ingredient_b = Column(String, primary_key = True)
+    recipe_count = Column(Integer)
+    UniqueConstraint(ingredient_a, ingredient_b)
+
     
 
 def get_engine(use_dotenv = True, **kargs):
@@ -70,7 +78,11 @@ def get_engine(use_dotenv = True, **kargs):
     return create_engine(eng_url)
 
 
-if __name__ == "__main__":
-    eng = get_engine()
+def create_tables(eng):
     logging.info(f"Createing DB Tables: {eng.url}")
     Base.metadata.create_all(eng, checkfirst=True)
+
+
+if __name__ == "__main__":
+    eng = get_engine()
+    create_tables(eng)