changed database url to better place

flaskr/__init__.py

@@ -7,6 +7,23 @@ load_dotenv()
 app = Flask(__name__)
 app.config["SECRET_KEY"] = getenv("SECRET_KEY")
 
+if getenv("POSTGRES_URL") and getenv("POSTGRES_URL").startswith("postgresql://"):
+    app.config["SQLALCHEMY_DATABASE_URI"] = getenv("POSTGRES_URL")
+else:
+    postgres_host = getenv("POSTGRES_HOST")
+    postgres_db = getenv("POSTGRES_DB")
+    postgres_port = getenv("POSTGRES_PORT")
+    postgres_user = getenv("POSTGRES_USER")
+    postgres_password = getenv("POSTGRES_PASSWORD")
+    postgres_variables = [postgres_host, postgres_db, postgres_port, postgres_user, postgres_password]
+
+    for var in postgres_variables:
+        if not var:
+            raise ValueError("All environment variables not set")
+
+    database_url = f"postgresql://{postgres_user}:{postgres_password}@{postgres_host}:{postgres_port}/{postgres_db}"
+    app.config["SQLALCHEMY_DATABASE_URI"] = database_url
+
 
 # import flaskr.views
 import flaskr.views.home

flaskr/database.py

@@ -3,26 +3,9 @@ from flaskr import app
 from flask_sqlalchemy import SQLAlchemy
 from random import randint
 
-if not getenv("POSTGRES_URL") or (getenv("POSTGRES_URL") and not getenv("POSTGRES_URL").startswith("postgresql://")):
-    postgres_host = getenv("POSTGRES_HOST")
-    postgres_db = getenv("POSTGRES_DB")
-    postgres_port = getenv("POSTGRES_PORT")
-    postgres_user = getenv("POSTGRES_USER")
-    postgres_password = getenv("POSTGRES_PASSWORD")
-    postgres_variables = [postgres_host, postgres_db, postgres_port, postgres_user, postgres_password]
-
-    for var in postgres_variables:
-        if not var:
-            raise ValueError("All environment variables not set")
-
-    database_url = f"postgresql://{postgres_user}:{postgres_password}@{postgres_host}:{postgres_port}/{postgres_db}"
-    app.config["SQLALCHEMY_DATABASE_URI"] = database_url
-else:
-    app.config["SQLALCHEMY_DATABASE_URI"] = getenv("POSTGRES_URL")
 
 db = SQLAlchemy(app)
 
-
 def create_db():
     print("Initializing the db...")
     db.session.execute(open("sql/schema.sql", "r").read())