Adding upload_column to a form

[EMS]

I have added upload_column into my application so I can do a simple
file upload. Following along with everything I've seen here, in the
upload_column site, and the streamlinedframework docs, I have done the
following:

1) Added my upload column to my model:

upload_column :sFileName,
:root_path => FILE_UPLOAD_CFG[RAILS_ENV][:file_upload_root],
:store_dir => FILE_UPLOAD_CFG[RAILS_ENV][:file_upload_path]

2) Added the magic columns to my migration and migrated the database.

# Table already contains sFileName of type :string
def self.up
add_column :tblMain, :sFileName_mime_type, :string
add_column :tblMain, :sFileName_filesize, :integer
end

3) Altered the _form.rhtml to handle the field

<% model_ui.edit_columns.each do |column| %>
<% if column.name.to_sym == :sFileName %>

<tr id="sl_field_media">
<td class="sl_edit_label"><label for=<%="#{form.object_name}
_sFileName"%>><%= column.human_name %></label></td>
<td class="sl_edit_value"><%= upload_column_field
form.object_name, 'sFileName' %></td>
</tr>

<% elsif column.is_displayable_in_context?(self,
@streamlined_item) %>
<%= column.render_tr_edit(self, @streamlined_item) %>
<% end %>
<% end %>


4) Made my new.rhtml and edit.rhtml use multipart

from new.rhtml
<% options[:html] = {:onsubmit=>'Streamlined.Form.submit(this);
return false;', :multipart => true} %>

from edit.rhtml
<% options[:html] = {:onsubmit=>'Streamlined.Form.submit(this);
return false;', :multipart => true} %>


Now when I run my app, I get the form (and viewing the form source, I
can see that the fields appear to match up against the database, and
that the form is marked for 'multipart/form-data'

But when I click the "Create" button, I receive an Upload Not
Multipart Error from uploaded_file.rb(72)

"Do not know how to handle a string with value 'testfile.csv' that was
uploaded. Check if the form's encoding has been set to 'multipart/form-
data'"


So my questions are:

1) Has anyone successfully integrated a file upload using
upload_column? If so, can you send/post an example for download so I
can see what is missing?

2) Has anyone been successful with another file upload tool
(attachment_fu, paperclip, etc...) and if so, can you post an example
for download so I can see what is missing?

Or, if something prohibits you from posting an example, can you
provide some hints about what steps have been missed?

Sincereley,

EMS

[Giovanni Nicolazzo]

hi,
due javascript limitation upload doesn't working with ajax.
Try this:

Streamlined.ui_for(YOUR_Attachment_MODEL) do
new_submit_button :ajax => false
edit_submit_button :ajax => false
end

in the views

<!-- never enter here-->
<% if model_ui.new_submit_button[:ajax] %>

<% options[:html] = {:onsubmit=>'Streamlined.Form.submit(this); return

false;'} %>
<% else %>
<!-- multipart option-->
<% options[:html] = {:multipart=>true} %>

> 2) Has anyone been successful with another file upload tool
> (attachment_fu, paperclip, etc...) and if so, can you post an example
> for download so I can see what is missing?

sorry, i have made a step-by-step tutorial for file column and attachment_fu
but in italian language ;)
bye
--
Giovanni Marco Nicolazzo
www.railshosting.it

[sergio_101]

hey, guys.. i spent some time unraveling this during the week.. i got
it to work.. for more information, check here:

http://www.village-buzz.com/2009/01/07/using-upload_column-with-streamlined/