Hi All,
I''m very new to RoR development and am working through the
developer.apple.com tutorials to try to get a good enough working
knowledge to be able to start my own project. Unfortunately, i''m using
Rails 3 and the tutorials are aimed at a Rails 2 environment.
I''ve been able to get a fair way through the tutorials, working out
some
of the simpler changes myself (changes to the routing API were
interesting), but i''ve hit a point where i''m stuck and google
hasn''t
been able to help me.
I''m currently working through the "Spicing it up with Ajax"
section of
http://developer.apple.com/tools/customizeonrailsleopard.html but am
unable to successfully convert the Rails 2 link_to_remote syntax into
Rails 3. I understand that the method is depreciated and that i should
use link_to with a :remote => true option specified, but the arguments
that i''m supplying don''t seem to be being picked up as a
Javascript
link. Instead, when i click one of the links, the whole page is
refreshed and the arguments appear in the address bar (instead of an
Ajax call). E.g.
http://localhost:3000/events/4?remote=true&method=delete&confirm=Are+you+sure%3F&url=http%3A%2F%2Flocalhost%3A3000%2Fevents%2F4%2Fexpenses%2F6
My _expenses.erb event looks like so:
...<% for expense in expenses -%>
<tr id="<%= dom_id(expense) %>">
<td>
<%= link_to expense.vendor.name, expense.vendor %>
</td>
<td align="right">
<%= number_to_currency(expense.amount, :unit => "£") %>
</td>
<td>
<%= link_to ''delete'',
:url => event_expense_url(event, expense),
:confirm => ''Are you sure?'',
:method => :delete,
:remote => true %>
</td>
</tr>
<% end -%>...
and my application.html.erb file:
<!DOCTYPE html>
<html>
<head>
<title>Expenses</title>
<%= stylesheet_link_tag :all %>
<%= javascript_include_tag :defaults %>
<%= csrf_meta_tag %>
</head>
<body>
<%= yield %>
</body>
</html>
I''d be very grateful if anyone could offer some advice. Apologies if
the
source code is too long for the forum.
Thanks,
Dave.
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On Oct 15, 6:12 am, David Weldon <li...-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:> > I''d be very grateful if anyone could offer some advice. Apologies if the > source code is too long for the forum. >if the rails.js file in public/javascripts? Is it being loaded? That is the file that :remote => true is going to try to call. I seem to remember that this is one of the major gotchas on a 2 to 3 conversion. Steve -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
Thanks for the quick response, Steve. The rails.js file is in the public/javascripts and it can be seen in the source of my page: <script src="/javascripts/rails.js?1285525822" type="text/javascript"></script> The link that is generated by the call to link_to is: <a href="/events/4?remote=true&method=delete&confirm=Are+you+sure%3F&url=http%3A%2F%2Flocalhost%3A3000%2Fevents%2F4%2Fexpenses%2F6">delete</a> Which mentions remote=true, but doesn''t appear to make any reference to javascript. I made a successful Ajax call in the prior part of the tutorial, only this time with the following syntax: <%= form_for [@event, @expense], :remote => true do |f| -%> -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
The standard delete link created by scaffold is
<%= link_to ''Destroy'', question, :confirm =>
''Are you
sure?'', :method => :delete %>
There is no reference to remote. Delete is not an ajax call, it is
just a javascript call that hides all the build a delete form stuff
that happened in Rails 2.x. By putting in :remote, it was probably
trying to do an Unobtrusive Javascript call to an unknown method. I
think!!!
If you are just trying to replace the delete link on the Apple demo,
try the above line.
Steve
On Oct 15, 8:40 am, David Weldon
<li...-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
wrote:> Thanks for the quick response, Steve. The rails.js file is in the
> public/javascripts and it can be seen in the source of my page:
>
> <script src="/javascripts/rails.js?1285525822"
> type="text/javascript"></script>
>
> The link that is generated by the call to link_to is:
>
> <a
>
href="/events/4?remote=true&method=delete&confirm=Are+you+sure%3F&a
mp;url=http%3A%2F%2Flocalhost%3A3000%2Fevents%2F4%2Fexpenses%2F6">delete</a
>
>
> Which mentions remote=true, but doesn''t appear to make any
reference to
> javascript.
>
> I made a successful Ajax call in the prior part of the tutorial, only
> this time with the following syntax:
>
> <%= form_for [@event, @expense], :remote => true do |f| -%>
>
> --
> Posted viahttp://www.ruby-forum.com/.
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On 15 October 2010 12:12, David Weldon <lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:> Hi All, > > I''m very new to RoR development and am working through the > developer.apple.com tutorials to try to get a good enough working > knowledge to be able to start my own project. Unfortunately, i''m using > Rails 3 and the tutorials are aimed at a Rails 2 environment.Rather than trying to learn rails 2 and 3 at once you might be better to use a Rails 3 tutorial such as railstutorial.org. This is available online free though initially it looks as if you have to pay. Colin -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.