Rails form_tag not responding - ruby-on-rails

Question

I have a form that is non-responsive for some reason and I'm stuck!
I have followed the RailsCast here but it's based on an older version of rails.
Here's my view code, pretty sure that's where my trouble is:
<%= form_tag publish_selected_posts_path do %>
<% #posts_inactive.each do |post| %>
<tr>
<td><%= check_box_tag "post_ids[]", post.id %></td>
<td><%= link_to post.title, post_path(post) %></td>
<td><%= post.created_at.to_s(:short) %></td>
<td><%= post.user.email %></td>
<td><%= post.user.email %></td>
<td><%= post.state.name %></td>
<td><%= post.city.name %></td>
<td><%= post.expire_date.to_s(:short) %></td>
<td>
<div>
<div class="dark" style="float:left;">
<%= link_to 'Edit', edit_post_path(post), :class => 'btn btn-mini dark' %>
</div>
<div style="float:left;">
<%= button_to 'Delete', post_path(post), :method => :delete, :confirm => 'Are you sure?', :class => 'btn btn-mini btn-danger' %>
</div>
<div class="dark" style="float:left;">
<%= link_to publish_link_text(post),
toggle_publish_post_path(post),
:class => 'btn btn-mini dark' %>
</div>
<div style="clear:both;">
</div>
</div>
</td>
</tr>
<% end %>
</tbody>
</table>
<%= submit_tag "Publish Selected", :class => 'btn btn-mini dark' %>
<% end %>
When I press the submit button, nothing is happening... As best I can tell, everything is as it should be based on the rails cast, but it's just not working.
Here's the HTML this form outputs:
<form accept-charset="UTF-8" action="/dashboard/posts" method="post"><div style="margin:0;padding:0;display:inline"><input name="utf8" type="hidden" value="✓" /><input name="authenticity_token" type="hidden" value="pwTuSXar01OT26FHf1bMyxKsSQ7MHWn/u3BQ9PmffS4=" /></div>
<tr>
<td><input id="post_ids_" name="post_ids[]" type="checkbox" value="29" /></td>
<td>Another Post</td>
<td>30 Nov 05:03</td>
<td>guitarjoe02#email.com</td>
<td>guitarjoe02#email.com</td>
<td>Alaska</td>
<td>Anchorage</td>
<td>28 Jan</td>
<td>
<div>
<div class="dark" style="float:left;">
Edit
</div>
<div style="float:left;">
<form action="/posts/29" class="button_to" method="post"><div><input name="_method" type="hidden" value="delete" /><input class="btn btn-mini btn-danger" data-confirm="Are you sure?" type="submit" value="Delete" /><input name="authenticity_token" type="hidden" value="pwTuSXar01OT26FHf1bMyxKsSQ7MHWn/u3BQ9PmffS4=" /></div></form>
</div>
<div class="dark" style="float:left;">
Publish
</div>
<div style="clear:both;">
</div>
</div>
</td>
</tr>
<tr>
<td><input id="post_ids_" name="post_ids[]" type="checkbox" value="28" /></td>
<td>New Post...</td>
<td>16 Nov 01:09</td>
<td>guitarjoe02#email.com</td>
<td>guitarjoe02#email.com</td>
<td>Alaska</td>
<td>Anchorage</td>
<td>14 Jan</td>
<td>
<div>
<div class="dark" style="float:left;">
Edit
</div>
<div style="float:left;">
<form action="/posts/28" class="button_to" method="post"><div><input name="_method" type="hidden" value="delete" /><input class="btn btn-mini btn-danger" data-confirm="Are you sure?" type="submit" value="Delete" /><input name="authenticity_token" type="hidden" value="pwTuSXar01OT26FHf1bMyxKsSQ7MHWn/u3BQ9PmffS4=" /></div></form>
</div>
<div class="dark" style="float:left;">
Publish
</div>
<div style="clear:both;">
</div>
</div>
</td>
</tr>
</tbody>
</table>
<input name="commit" type="submit" value="Save changes" />
</form>
Any ideas?

Answer 1

Ah ha! The culprit is your button_to calls. Check out the documentation for button_to. As you will see, that helper wraps itself in a mini HTML form. In your case, its creating a form within a form, which is invalid.
You should be able to do the exact same action using link_to instead. So your button_to will end up looking like this:
<%= link_to 'Delete', post_path(post), :method => :delete, :confirm => 'Are you sure?', :class => 'btn btn-mini btn-danger' %>
Try that and let me know if it makes a difference.

Answer 2

Your submit tag doesn't seem to be inside the form. That will make it not actually submit the form.
Edit: I think I might be wrong... but the dodgy indentation of your code makes it hard to tell. Can you clean up the indentation to make do/ends (and the code they contain) clearer and easy to see at a glance?