Ruby Forum Rails deployment > using render in observe_field before

I want to use render(:partial => "loading") in observe_field's before.
For example:

# Can not run #
<%= observe_field 'username',
                  :on => 'blur',
                  :update => 'check_username',
                  :url => {:action => 'check_username'},
                  :before =>
"$('check_username').update('#{render(:partial => "loading")}')",
                  :with => 'username' -%>
# AJAX part, generate two lines

# Can run #
<%= text_field_tag 'username' %>
<span id="check_username"></span>
<%= observe_field 'username',
                  :on => 'blur',
                  :update => 'check_username',
                  :url => {:action => 'check_username'},
                  :before => "$('check_username').update('<img
src=\"/images/loading.gif\">Checking...')",
                  :with => 'username' -%>
# AJAX part, generate only one line

# partial
<%= img_tag "/images/loading.gif" %>Loading...

you might consider including the loading stuff in a hidden div, and 
then,
when you trigger something with the observe field, you can use some
javascript to show it.  I think that this should work.  Any other 
thoughts?

On Thu, Apr 10, 2008 at 9:15 PM, Ray Sun 
<ruby-forum-incoming@andreas-s.net>

Exactly what Scott said.  Put it in a hidden div and show the div with 
ajax.

On Fri, Apr 18, 2008 at 11:01 AM, Scott Ballantyne 
<ussballantyne@gmail.com>
wrote:

> > For example:
> >
> > # AJAX part, generate only one line
>
--
Greg Newman
Rails Developer & Designer
Owner, carbon8.us
Blog, 20seven.org

I don't think you need ajax, just javascript.
if using prototype something like
Element.show('loading')
this should work if you have a div with an id that's loading.
no need to make a round trip to the server.

On Fri, Apr 18, 2008 at 11:04 PM, Greg Newman <gregoryjnewman@gmail.com>

Good point Scott, however, I'm assuming since he's using observe_field 
that
he's doing a round trip to process something.

On Fri, Apr 18, 2008 at 11:15 AM, Scott Ballantyne 
<ussballantyne@gmail.com>
wrote:

>> ajax.
>>> On Thu, Apr 10, 2008 at 9:15 PM, Ray Sun <
>>>>                  :url => {:action => 'check_username'},
>>>>                  :update => 'check_username',
>>>>
>> Owner, carbon8.us
>> Blog, 20seven.org
>>
>>
>>
>
> >
>


--
Greg Newman
Rails Developer & Designer
Owner, carbon8.us
Blog, 20seven.org

Good point, but the value of the loading div is its immediacy in the 
user
experience.  So using javascript rather than ajax even if there is a 
trip to
the server still has the advantage of being faster.

On Sat, Apr 19, 2008 at 4:54 AM, Greg Newman <gregoryjnewman@gmail.com>