Make it possible to accept follow requests

calsocial/models.py

@@ -604,6 +604,12 @@ class UserFollow(db.Model):  # pylint: disable=too-few-public-methods
     #: The timestamp when the follow was accepted
     accepted_at = db.Column(db.DateTime(), nullable=True)
 
+    def accept(self):
+        """Accept this follow request
+        """
+
+        self.accepted_at = datetime.utcnow()
+
 
 class Notification(db.Model):
     """Database model for notifications