Permission REST API to access models from the view

The integration with CanCan provides a nice set of extra helpers to facilitate controlling who gets access to operate on the models.
The following methods should be used from within a view or even in a view helper.
These helpers always check the current_user to see if the user has the required permission access for the required action on the given model. If not, the link is not rendered.

Here is a list of the REST links and the required CanCan permission level for the model instance(s) to link to. Note that the CanCan :manage level implies full permission and :write full mutation access.

• Index :read
• Show :read
• Create :create
• Edit :edit
• Delete :destroy

Typically the REST links are used within views, partials and view helpers. Example:

<%= index_link(Post, 'To the posts') %>
<%= create_link(Post, 'Create a new post') %>

For the create and index REST actions, you can pass either an instance or a class of a model object. The other REST options only work with model instances.

index_link

index_link(Post)
index_link(Post, 'To the posts')
index_link(@post)
index_link(@post, 'All the posts')

create_link

create_link(Post)
create_link(Post, 'Create the post')
create_link(@post)
create_link(@post, 'Create the post')

edit_link

edit_link(@post)
edit_link(@post, 'Edit the post')

delete_link

delete_link(@post)
delete_link(@post, 'Delete the post')

show_link

show_link(@post)
show_link(@post, 'Show the post')