For example, in the following block:
page.select(''.foo'').each do |element|
...
end
How would I access, just for example, the id attribute of each element in
the collection?
I''ve randomly tried element.id and
element.attributes[''id''], but neither of
those has worked. I''ve also been unsuccessful in finding any
documentation
on this, but it seems like such a basic task.
Thanks!
DW
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dw wrote:> For example, in the following block: > > page.select(''.foo'').each do |element| > ... > end > > How would I access, just for example, the id attribute of each element in > the collection? > > I''ve randomly tried element.id and element.attributes[''id''], but neither of > those has worked. I''ve also been unsuccessful in finding any documentation > on this, but it seems like such a basic task. > > Thanks! > DW >I''m not sure you can at the moment. I''ve been struggling to do a conditional in my RJS template, and finally found a post saying that you couldn''t do that because you couldn''t get at the value of the select...
In the examples I''ve seen the each enumerator block has two variables
page.select(''.foo).each do |value, index|
page << ''alert(value.innerHTML);''
end
Also, value is used instead of element. Not sure how significant that is but
give it a whirl.
Regards,
John
----- Original Message -----
From: "Chris T" <ctmailinglists@googlemail.com>
To: <rails@lists.rubyonrails.org>
Sent: Wednesday, July 19, 2006 2:52 PM
Subject: Re: [Rails] How to access element attributes using RJS?
> dw wrote:
>> For example, in the following block:
>>
>> page.select(''.foo'').each do |element|
>> ...
>> end
>>
>> How would I access, just for example, the id attribute of each element
in
>> the collection?
>> I''ve randomly tried element.id and
element.attributes[''id''], but neither
>> of
>> those has worked. I''ve also been unsuccessful in finding any
>> documentation
>> on this, but it seems like such a basic task.
>>
>> Thanks!
>> DW
>>
> I''m not sure you can at the moment. I''ve been struggling
to do a
> conditional in my RJS template, and finally found a post saying that you
> couldn''t do that because you couldn''t get at the value of
the select...
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
A little off topic but... in a view file for lisiting links the logic
goes something like:
<% if @links.size == 0 %>
<p id="no-links">No links...</p>
<% else %>
## for link in @link ....
<% end %>
I have a form on the same page used tro create a new link. In create.rjs
I''m looking for a way to get rid of page[''no-links'']
only if it exists.
I''ve tried
page << if($(''no-links'')) {
page[''no-links''].remove }
which is obviously wrong. Can someone tell me what to put in create.rjs
to remove #no-links if it exists in the DOM? Many thanks...
Greg
--
Posted via http://www.ruby-forum.com/.
Try this, it assumes your controller increments the links before the rjs file is processed page[:no-links].remove if @links.size == 1 ----- Original Message ----- From: "Greg" <gmacgregor+rubyforum@gmail.com> To: <rails@lists.rubyonrails.org> Sent: Wednesday, July 19, 2006 3:17 PM Subject: [Rails] Re: How to access element attributes using RJS?> > A little off topic but... in a view file for lisiting links the logic > goes something like: > > <% if @links.size == 0 %> > <p id="no-links">No links...</p> > <% else %> > ## for link in @link .... > <% end %> > > I have a form on the same page used tro create a new link. In create.rjs > I''m looking for a way to get rid of page[''no-links''] only if it exists. > I''ve tried > > page << if($(''no-links'')) { page[''no-links''].remove } > > which is obviously wrong. Can someone tell me what to put in create.rjs > to remove #no-links if it exists in the DOM? Many thanks... > > Greg > > > -- > Posted via http://www.ruby-forum.com/. > _______________________________________________ > Rails mailing list > Rails@lists.rubyonrails.org > http://lists.rubyonrails.org/mailman/listinfo/rails >
John Ward wrote:> Try this, it assumes your controller increments the links before the rjs > file is processedThanks. I''ve attempted the following but it didn''t work: # links_controller.rb: def create @link = Link.new(params[:link]) @saved = @link.save @num_links = Link.find(:all).size if request.xhr? page[:listing-status].replace_html "You''ve created #{@num_links} links in #{@num_cats} categories" page[:no-links].remove if @num_links == 1 && page[:no-links] return end if @saved flash[:message] = ''Link was successfully created.'' redirect_to :action => ''list'' else render :action => ''new'' end end # create.rjs if @saved page.insert_html :after, "category-#{@link.category_id}", :partial => ''link'', :object => @link page.visual_effect :highlight, "link-#{@link.id}" page.replace_html ''new_link_error'', '''' page[''link_url''].value = ''http://'' page[''link_name''].value = '''' page[''link_description''].value = '''' else # not saved, present error messages page.replace_html ''new_link_error'', error_messages_for(''link'') page.visual_effect :appear, ''new_link_error'', :duration => 0.5 page.visual_effect :highlight, ''new_link_error'', :duration => 0.5 end #Error in links_controller#create NameError: undefined local variable or method `page'' Guess you can''t use page[] in the controller... -- Posted via http://www.ruby-forum.com/.
Greg wrote:> Guess you can''t use page[] in the controller...Certainly not true. This works: #from links_controller.rb if request.xhr? render :update do |page| if @saved page[''listing-status''].replace_html "You''ve created #{num_links} links in #{num_cats} categories" page[''no-links''].remove if @num_links == 1 && page[''no-links''] page.insert_html :after, "category-#{@link.category_id}", :partial => ''link'', :object => @link page.visual_effect :highlight, "link-#{@link.id}" page.replace_html ''new_link_error'', '''' page[''link_url''].value = ''http://'' page[''link_name''].value = '''' page[''link_description''].value = '''' else # not saved, present error messages page.replace_html ''new_link_error'', error_messages_for(''link'') page.visual_effect :appear, ''new_link_error'', :duration => 0.5 page.visual_effect :highlight, ''new_link_error'', :duration => 0.5 end end #end update return end ...I smell a helper! Cheers. Greg -- Posted via http://www.ruby-forum.com/.