RoR, destroy the object my clicking ob the button - ruby-on-rails

Question

I have following structure:
<% if #uploads%>
<br class="clear" />
<br />
<% #uploads.each do |file| %>
<div class="file_information">
<p><%= file.file_name %></p>
<td class="Chip_info">
Info
</td>
<td class="Pic">
Pic
</td>
<td class="Hist">
Hist
</td>
<td class="Hist2">
His2
</td>
<td class="delete">
<button class="btn btn-mini btn-danger" data-url="<%=file.destroy%>">
<i class="icon-trash icon-white"></i>
</button>
</td>
</div>
<%end%>
<%else%>
<br class="clear" />
<br />
<%end%>
The problem is that while running it, it destroys all objects automatically without me clicking on the button. Is it possible somehow to list uploads and only by clicking on the button, the corresponding upload will be deleted (destroy action will be called) and not all of uploads?
Thanks in advance
edit
I use this example for file upload
He uses followint to delete the file:
model:
"delete_url" => upload_path(self)
view:
<td class="delete">
<button class="btn btn-danger" data-url="{%=file.delete_url%}">
<i class="icon-trash icon-white"></i>
<input type="checkbox" name="delete" value="1">
</td>
So I tried
data-url="<%=file.upload_path(self)%>">
but it doesnt work, so I printed file.upload_path(self) from a controller and got this:
/uploads/%23%3CUploadsController:0xaf61b34%3E

Answer 1

You can create a helper that generates a form containing one button:
def button_to_delete_file(file)
form_tag file_path(file), :method => :delete, :style => "display:inline;" do
button_tag :class => "btn btn-mini btn-danger" do
content_tag :i, " ", :class => "icon-trash icon-white"
end
end
end
And use it like this:
<%= button_to_delete_file(file) %>

Answer 2

In the button
<button class="btn btn-mini btn-danger" data-url="<%=file.destroy%>">
your data_url is not an url. When the file is executed, everything inside <% %> is executed, so file.destroy is called.
Replace file.destroy by the corresponding URL (something that looks like file_destroy_path(id)) and it should work.