Admin cookbook

Creating a custom widget on the edit page: Why For an imaginary webshop edit page, we want to add 2 more data fields: the affiliate URL and a note about free shipping.
Customizing the layout of the admin edit page: Why After having created a custom widget (see Creating a custom widget on the edit page), we want to hide widgets that we don’t need.
Customizing the style of an admin page: How to make style customizations to admin pages.
Storing date/time fields: Some interesting tidbits about saving/updating a date/time field of a resource.
Admin template specific things: Common markup in admin templates.
Automatically add new users to a user group: Why When you create a person, you usually need to add it to a user group as well. You may want to automate this, in particular if you need to differentiate…