[Python/Flask_Blog] apply app_context to solve RunTimeError

Python/Flask_Blog/05-Package-Structure/flaskblog/__init__.py

@@ -4,6 +4,7 @@
 app = Flask(__name__)
 app.config['SECRET_KEY'] = '5791628bb0b13ce0c676dfde280ba245'
 app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///site.db'
-db = SQLAlchemy(app)
+with app.app_context():
+    db = SQLAlchemy(app)
 
 from flaskblog import routes

Python/Flask_Blog/06-Login-Auth/flaskblog/__init__.py

@@ -6,10 +6,11 @@
 app = Flask(__name__)
 app.config['SECRET_KEY'] = '5791628bb0b13ce0c676dfde280ba245'
 app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///site.db'
-db = SQLAlchemy(app)
-bcrypt = Bcrypt(app)
-login_manager = LoginManager(app)
-login_manager.login_view = 'login'
-login_manager.login_message_category = 'info'
+with app.app_context():
+    db = SQLAlchemy(app)
+    bcrypt = Bcrypt(app)
+    login_manager = LoginManager(app)
+    login_manager.login_view = 'login'
+    login_manager.login_message_category = 'info'
 
 from flaskblog import routes

Python/Flask_Blog/07-User-Account-Profile-Pic/flaskblog/__init__.py

@@ -6,10 +6,11 @@
 app = Flask(__name__)
 app.config['SECRET_KEY'] = '5791628bb0b13ce0c676dfde280ba245'
 app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///site.db'
-db = SQLAlchemy(app)
-bcrypt = Bcrypt(app)
-login_manager = LoginManager(app)
-login_manager.login_view = 'login'
-login_manager.login_message_category = 'info'
+with app.app_context():
+    db = SQLAlchemy(app)
+    bcrypt = Bcrypt(app)
+    login_manager = LoginManager(app)
+    login_manager.login_view = 'login'
+    login_manager.login_message_category = 'info'
 
 from flaskblog import routes

Python/Flask_Blog/08-Posts/flaskblog/__init__.py

@@ -6,10 +6,11 @@
 app = Flask(__name__)
 app.config['SECRET_KEY'] = '5791628bb0b13ce0c676dfde280ba245'
 app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///site.db'
-db = SQLAlchemy(app)
-bcrypt = Bcrypt(app)
-login_manager = LoginManager(app)
-login_manager.login_view = 'login'
-login_manager.login_message_category = 'info'
+with app.app_context():
+    db = SQLAlchemy(app)
+    bcrypt = Bcrypt(app)
+    login_manager = LoginManager(app)
+    login_manager.login_view = 'login'
+    login_manager.login_message_category = 'info'
 
 from flaskblog import routes

Python/Flask_Blog/09-Pagination/flaskblog/__init__.py

@@ -6,10 +6,11 @@
 app = Flask(__name__)
 app.config['SECRET_KEY'] = '5791628bb0b13ce0c676dfde280ba245'
 app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///site.db'
-db = SQLAlchemy(app)
-bcrypt = Bcrypt(app)
-login_manager = LoginManager(app)
-login_manager.login_view = 'login'
-login_manager.login_message_category = 'info'
+with app.app_context():
+    db = SQLAlchemy(app)
+    bcrypt = Bcrypt(app)
+    login_manager = LoginManager(app)
+    login_manager.login_view = 'login'
+    login_manager.login_message_category = 'info'
 
 from flaskblog import routes

Python/Flask_Blog/10-Password-Reset-Email/flaskblog/__init__.py

@@ -8,16 +8,17 @@
 app = Flask(__name__)
 app.config['SECRET_KEY'] = '5791628bb0b13ce0c676dfde280ba245'
 app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///site.db'
-db = SQLAlchemy(app)
-bcrypt = Bcrypt(app)
-login_manager = LoginManager(app)
-login_manager.login_view = 'login'
-login_manager.login_message_category = 'info'
 app.config['MAIL_SERVER'] = 'smtp.googlemail.com'
 app.config['MAIL_PORT'] = 587
 app.config['MAIL_USE_TLS'] = True
 app.config['MAIL_USERNAME'] = os.environ.get('EMAIL_USER')
 app.config['MAIL_PASSWORD'] = os.environ.get('EMAIL_PASS')
-mail = Mail(app)
+with app.app_context():
+    db = SQLAlchemy(app)
+    bcrypt = Bcrypt(app)
+    login_manager = LoginManager(app)
+    login_manager.login_view = 'login'
+    login_manager.login_message_category = 'info'
+    mail = Mail(app)
 
 from flaskblog import routes