Rails - Mar 2006 - Posting multiple files - how to set up params correctly

All,

I have a page where I am allowing the user to specify multiple image 
files that are related to one HTML document.

I want to end up with an array of image files that I can then assign 
into an array within the controller.

I''m trying to set up my file_field correctly but am having trouble.

I''m not clear on how "the multiple input tags with the same name
turning
into an array of parameters" thing works?

I''ve tried:

<%= file_field(''document'', ''image[]'')
%>
<%= file_field(''document[]'', ''image[]'')
%>

and when I do debug(params), I never see more than one image in the 
"document" hash.

What am I doing wrong here?

Can one use the file_field helper to generate multiple file selection 
elements successfully?


===================================================

Here is my form:

<%= form_tag( { :action => ''upload_images'' },
              { :multipart => ''true'' } )%>

<TABLE>
<% for image in images do %>
  <TR>
    <TD>
      <%= image.path.split(''/'').last[0..39] %>:
      <% if ((! image.path.nil?) && (image.path.length > 40))
%>
         <%= h("...") %>
      <% end %>
    </TD>
    <TD>
      <%= file_field(''document'', ''image'')
%>
    </TD>
  </TR>
<% end %>
</TABLE>

<P>
  <%= submit_tag "Upload Images" %>
</P>

<%= end_form_tag %>

Thanks,
Wes

-- 
Posted via http://www.ruby-forum.com/.

Unfortunately, the form helpers are not equipped to handle arrays well, but they
do their job very well otherwise.
 
Since file upload tags are simple, I think you can be trusted to do this one
yourself:
 
<input type="file" name="document[image][0]" />
<input type="file" name="document[image][1]" />
... ad nauseum
 
Cheers,
 
Sean Cribbs
Web Services - KCKCC
>>> weyus@att.net 3/29/2006 3:47 PM >>>
All,

I have a page where I am allowing the user to specify multiple image 
files that are related to one HTML document.

I want to end up with an array of image files that I can then assign 
into an array within the controller.

I''m trying to set up my file_field correctly but am having trouble.

I''m not clear on how "the multiple input tags with the same name
turning
into an array of parameters" thing works?

I''ve tried:

<%= file_field(''document'', ''image[]'')
%>
<%= file_field(''document[]'', ''image[]'')
%>

and when I do debug(params), I never see more than one image in the 
"document" hash.

What am I doing wrong here?

Can one use the file_field helper to generate multiple file selection 
elements successfully?


===================================================

Here is my form:

<%= form_tag( { :action => ''upload_images'' },
              { :multipart => ''true'' } )%>

<TABLE>
<% for image in images do %>
  <TR>
    <TD>
      <%= image.path.split(''/'').last[0..39] %>:
      <% if ((! image.path.nil?) && (image.path.length > 40))
%>
         <%= h("...") %>
      <% end %>
    </TD>
    <TD>
      <%= file_field(''document'', ''image'')
%>
    </TD>
  </TR>
<% end %>
</TABLE>

<P>
  <%= submit_tag "Upload Images" %>
</P>

<%= end_form_tag %>

Thanks,
Wes

-- 
Posted via http://www.ruby-forum.com/.
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