Add create_table function and update doc

Author: Riley

website/app.py

@@ -15,7 +15,7 @@ def create_app(config=None):
     if 'WEBSITE_CONF' in os.environ:
         app.config.from_envvar('WEBSITE_CONF')
 
-    # load app sepcified configuration
+    # load app specified configuration
     if config is not None:
         if isinstance(config, dict):
             app.config.update(config)
@@ -27,6 +27,11 @@ def create_app(config=None):
 
 
 def setup_app(app):
+    # Create tables if they do not exist already
+    @app.before_first_request
+    def create_tables():
+        db.create_all()
+
     db.init_app(app)
     config_oauth(app)
     app.register_blueprint(bp, url_prefix='')

website/oauth2.py

@@ -12,7 +12,7 @@
 
 
 class AuthorizationCodeGrant(grants.AuthorizationCodeGrant):
-    def create_authorization_code(self, client, user, request):
+    def create_authorization_code(self, client, grant_user, request):
         code = gen_salt(48)
         item = OAuth2AuthorizationCode(
             code=code,