If you are trying to get started with Merb and are looking for a good sample app, then have a look at Cookbook. It's mostly to learn how to use the merb-auth-slice, but can get you started with datamapper too.

DataMapper CRUD

One of the confusing things about Restful resources is that the when changing a resource the operation must be a Post HTTP operation not a Get HTTP. This insures that HTTP Get operations are immutable. OK well how do you do a delete then? If you create a new merb application, merb-gen app omelet, cd omelet, merb-gen resource egg The controller already has the destroy action, it's just a matter of calling that with a POST command. There is a Merb form helper called delete_button that can help

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%h1 Users %table %thead %tr %th Title %th{:colspan => 2}   %tbody %tr - for user in @users %tr %td = user.login %td = link_to 'Show', url(:user, user) %td = link_to 'Edit', url(:edit_user, user) %td = delete_button(user) = link_to 'New', url(:new_user)

Now the view will call the destroy action in a Restful manner.