Rails - Mar 2007 - HOWTO: Multiple file upload with file_column

Lots of requests but not many answers on this topic.  Here is how you do
it:

FORM:
<table>
<% for i in 1..6 %>
  <tr>
    <td
class=''Label''><label>Title</label></td>
    <td><input id="<%= "picture_#{i}_title"
%>" name="<%"picture[#{i}][title]" %>"
size="30" type="text" /></td>
  </tr>
  <tr>
    <td class=''Label''><label
for="image_data">Image</label></td>
    <td><input id="<%= "picture_#{i}_image_data_temp"
%>" name="<%"picture[#{i}][image_data_temp]"
%>" type="hidden" />
        <input id="<%= "picture_#{i}_image_data"
%>" name="<%"picture[#{i}][image_data]" %>"
size="30" type="file" /></td>
  </tr>
    <tr>
    <td><br /></td>
  </tr>
<% end %>
</table>


CONTROLLER:
      params[:picture].each { |attr, value|
                            unless value[:image_data].blank?
                              new_image = Image.new
                              new_image.person_id = session[:person_id]
                              new_image.title = value[:title]
                              new_image.image = value[:image_data]
                              new_image.save
                           end
                           }


MODEL:
class Image < ActiveRecord::Base

  file_column :image

end

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Taylor Strait schrieb:
> Lots of requests but not many answers on this topic.  Here is how you do
> it:
>
> FORM:
> <table>
> <% for i in 1..6 %>
>   <tr>
>     <td
class=''Label''><label>Title</label></td>
>     <td><input id="<%= "picture_#{i}_title"
%>" name="<%> "picture[#{i}][title]" %>"
size="30" type="text" /></td>
>   </tr>
>   <tr>
>     <td class=''Label''><label
for="image_data">Image</label></td>
>     <td><input id="<%=
"picture_#{i}_image_data_temp" %>" name="<%>
"picture[#{i}][image_data_temp]" %>" type="hidden"
/>
>         <input id="<%= "picture_#{i}_image_data"
%>" name="<%> "picture[#{i}][image_data]"
%>" size="30" type="file" /></td>
>   </tr>
>     <tr>
>     <td><br /></td>
>   </tr>
> <% end %>
> </table>
>
>
> CONTROLLER:
>       params[:picture].each { |attr, value|
>                             unless value[:image_data].blank?
>                               new_image = Image.new
>                               new_image.person_id = session[:person_id]
>                               new_image.title = value[:title]
>                               new_image.image = value[:image_data]
>                               new_image.save
>                            end
>                            }
>
>
> MODEL:
> class Image < ActiveRecord::Base
>
>   file_column :image
>
> end
>
>   
Hi Taylor,


how do you handle and display the errormessages, e.g: the 1st and 3rd 
file don´t match filesize or filetype etc out of a total of 4 ??

Best regards
matthi

ps: i have also multiple_file upload running, even my code is different, 
the error_message_stuff should/could be handled the same


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