Google App Engine: 404 Resource Not Found

I am trying to build a basic blog model using Google App Engine in Python. However, something's wrong with my code I suppose, and I am getting a 404 error when I try to display all

Solution 1:

When you create your post, you're giving it a parent (not sure why). But when you get it, you do so by the ID only, and don't take into account the parent ID. In the datastore, a key is actually a path consisting of all the parent kinds and IDs/names and then those of the current entity, and to get an object you need to pass the full path.

Possible solutions here:

• Drop the parent key, since it isn't doing anything here as you're always setting it to the same value;
• Use it when you get the object: Blogger.get_by_id(post_id, parent=parent_key()) - obviously this only works if the parent is always the same;
• Use the full stringified key in the path, rather than just the ID, and do Blogger.get(key) - you'll also need to change the route regex to accept alphanumeric chars, eg '/blog/(\w+)', and change the redirect to '/blog/%s' % a.key().