A question about ajax

I defines a partial see below:
<%=
puts @project.version
text_field_tag “project_version”, @project.version
%>

I want the project version update-to-date. The first line can print the
correct version value but the text field doesn’t refresh to the new
version.

Hi,

First of all, if you want to use puts in your views, use <% %> tags
rather
than <%= %> tags.
Secondly, if you load your partials once you have your data
object(@project)
with appropriate value your page should display the same.
But if you change the value of @project.version after the partial is
loaded,
it would not be reflected on the page until you reload the particular
div
which has the text field tag with the partial.

-NAYAK

On Tue, Dec 30, 2008 at 6:42 PM, Zhao Yi

NAYAK wrote:

First of all, if you want to use puts in your views, use <% %> tags
rather than <%= %> tags.

I defines a partial see below:
<%=
 puts @project.version
 text_field_tag "project_version", @project.version
%>

The above will puts the @project.version to the STDOUT stream, then will
return
the text_field_tag into the <%= %> location.

This is a subtle hair to split (and ‘p’ is more useful than ‘puts’
there), but
debugging out of the top of a <%= %>, while expressing its last line, is
very
common…


Phlip

Vishwanath Nayak wrote:

Hi,

First of all, if you want to use puts in your views, use <% %> tags
rather
than <%= %> tags.
Secondly, if you load your partials once you have your data
object(@project)
with appropriate value your page should display the same.
But if you change the value of @project.version after the partial is
loaded,
it would not be reflected on the page until you reload the particular
div
which has the text field tag with the partial.

-NAYAK

On Tue, Dec 30, 2008 at 6:42 PM, Zhao Yi

Hi,

This is my controller code:

def update_project_selection

@project = Project.find(:all,:conditions=>"name=’#{selected_project}’
")
render :partial => “project_version”, :layout=>false
end

I update the @project object before load the partial. Why does the page
display the same value?

Below is the view page:

<%=
select_tag:project_selection,options_for_select(@project_names)
%>

<%=
observe_field :project_selection,
:frequency => 0.5,
:update => ‘ajaxWrapper’,
:url => {:action => ‘update_project_selection’},
:with => “‘project_selection=’+encodeURIComponent(value)”
%>

I know what the problem. I set up a wrong update value in observe_field
element.

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