Rails - Jan 2006 - partials and instance variables for file_column

Hi,

Sebastian Kanthak of the file_column-Plugin wrote once:

"is the photo object inside a local variable or an instance variable
(e.g. photo or @photo)? url_for_file_column only works with instance
variables, like all other active record form helpers. Could this be
the problem?"

So I''m using file_column in a partial, e.g.

<%= render (:partial => "product", :collection => @products)
%>

my partial (_product.rhtml) looks like this:

<div class="productteaser">
   <h4><%= link_to product.titel, :action =>
''detail'', :id => product.id %></h4>
     <%= link_to (image_tag url_for_file_column("product",
"image"),
{:width => ''150'', :height => ''181'',
:style => ""}), { :action =>
''detail'', :id => product.id }, {:title =>
"Detailansicht" } %>
  <p class="preis"><%= product.preis %> </p>
</div>

But in my partial I have the local variable "product", not the
instance variable @product, so file_column doesn''t work. I now have a

<% @product  = product %>
in the top of my partial, but I think there must be a more railish way. But how?

Thanks,
Beate

On 1/19/06, Beate Paland <bpaland@gmail.com>
wrote:
> Hi,
>
> Sebastian Kanthak of the file_column-Plugin wrote once:
>
> "is the photo object inside a local variable or an instance variable
> (e.g. photo or @photo)? url_for_file_column only works with instance
> variables, like all other active record form helpers. Could this be
> the problem?"
>
> So I''m using file_column in a partial, e.g.
>
> <%= render (:partial => "product", :collection =>
@products) %>
>
> my partial (_product.rhtml) looks like this:
>
> <div class="productteaser">
>    <h4><%= link_to product.titel, :action =>
''detail'', :id => product.id %></h4>
>      <%= link_to (image_tag url_for_file_column("product",
"image"),
> {:width => ''150'', :height =>
''181'', :style => ""}), { :action =>
> ''detail'', :id => product.id }, {:title =>
"Detailansicht" } %>
>   <p class="preis"><%= product.preis %> </p>
> </div>
>
> But in my partial I have the local variable "product", not the
> instance variable @product, so file_column doesn''t work. I now
have a
>
> <% @product  = product %>
> in the top of my partial, but I think there must be a more railish way. But
how?
>
> Thanks,
> Beate
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
url_for_file_column now lets you cheat and pass the object itself
where most rails fields only accept the string name of the object. 
i.e.

url_for_file_column "instance_var", "field"
url_for_file_column @instance_var, "field"
url_for_file_column local_var, "field"

are all valid.

--
Kyle Maxwell
Chief Technologist
E Factor Media // FN Interactive
kyle@efactormedia.com
1-866-263-3261