About default routing helpers, is there some redundancy?

Assuming post = Post.first, I can write a link with

link_to "First Post"开发者_如何学C, post  # I guess Rails here understand to which model the
                            # object "post" belongs

But to edit the post, the link is

link_to "Edit First Post", edit_post_path(post)

Is it possible to write something like:

link_to "Edit First Post", post, :type => :edit

so that it would be not necessary to specify to which model the object belong? Would not that be DRYer?

---

You can use method and action instead of type

See the documentation

Example:

link_to "Profile", :controller => "profiles", :action => "show", :id => @profile
# => <a href="/profiles/show/1">Profile</a>

---

This is a possible solution that I implemented. In application_helper.rb add the method:

def edit_path(item, other = {})
  send("edit_#{item.class.to_s.downcase}_path", item, other)
end

So now I can create edit links with:

link_to "Edit Post", edit_path(post)
link_to "Edit User", edit_path(user)

instead of

link_to "Edit Post", edit_post_path(post)
link_to "Edit User", edit_user_path(user)

I feel this is DRYer, but maybe it is just me.