Out of curiosity, why is it that the following doesn''t work in a view:
<%= @items.each { |@item| render :partial => ''itemrow'' }
%>
of course it''s easily achieved like this:
<% for @item in @items %>
<%= render :partial => ''itemrow'' %>
<% end %>
Is it just not possible to use blocks in a view?
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François Montel wrote:> Out of curiosity, why is it that the following doesn''t work in a view: > > <%= @items.each { |@item| render :partial => ''itemrow'' } %> > > of course it''s easily achieved like this: > > <% for @item in @items %> > <%= render :partial => ''itemrow'' %> > <% end %> > > Is it just not possible to use blocks in a view?I''m not sure why one works and one doesn''t, but neither is the easiest way to do what you are trying to do. The easiest way to do this is using the :collection parm of the render call. <%= render :partial => ''itemrow'', :collection => @items %> This will iterate over the collection and render the partial once for each item in the collection. Each time the partial is rendered, the current item from the collection is mapped into a variable that matches the name of the partial. So, in this case, inside your _itemrow.rhtml partial, the variable "itemrow" (no ''@'' sign) will reference the current item from the collection. For instance, let''s say your @items consists of an array of objects with name and price attributes - then your _itemrow.rhtml partial might look something like this: <tr><td><%= itemrow.name %></td><td><%= itemrow.price %></td></tr> c. -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
On Sat, Nov 18, 2006 at 08:28:27AM -0800, zero halo wrote:
}
} Out of curiosity, why is it that the following doesn''t work in a
view:
}
} <%= @items.each { |@item| render :partial => ''itemrow''
} %>
}
} of course it''s easily achieved like this:
}
} <% for @item in @items %>
} <%= render :partial => ''itemrow'' %>
} <% end %>
}
} Is it just not possible to use blocks in a view?
You would need to use inject rather than each because render :partial
returns the rendered HTML as a string and you are returning @items from
each. That aside, though, the right way to render a partial on a collection
is:
<%= render :partial => ''itemrow'', :collection =>
@items %>
Rails does the loop for you.
--Greg
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