I need to get the innerHTML of a div in an rjs template. How do I go about doing this? I have already tried accessing it using page[''div1''].innerHTML but rails complains that innerHTML is not a function. I tried writing a javascript function, but there does not seem to be a way of getting the return value when the page.call is used to call javascript functions. Any help will be appreciated. Regards, Bharat http://blog.publishedperspectives.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-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
I''m not sure I understand you 100% so forgive me if I misunderstood but it sounds like you want to get the contents of an element (the innerHTML) via code on the server. You can''t do that. If I could see an example of what it is you are trying to do, I might understand better. Keep in mind that the rjs code gets ''translated'' into javascript which is then sent back to the browser and then evaluated. page[''div1''].innerhtml is seen by rails as ruby code, that''s why you are getting the error. there is no innerHTML method, as you are seeing. Please provide an example and perhaps I can assist further. Chris On 11/9/06, Bharat <bharata-k+Hz54J8xG4AvxtiuMwx3w@public.gmane.org> wrote:> > I need to get the innerHTML of a div in an rjs template. How do I go > about doing this? > I have already tried accessing it using page[''div1''].innerHTML but > rails complains that innerHTML is not a function. > I tried writing a javascript function, but there does not seem to be a > way of getting the return value when the page.call is used to call > javascript functions. > > Any help will be appreciated. > > Regards, > Bharat > > http://blog.publishedperspectives.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-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
Hi Chris, Basically I am doing an ajax update of a div. I would like to ensure that the new text coming down from the server is not already present in the div. I understand that RJS is executed on the server and translated to javascript. I was hoping that there is a RJS method which translates into getting an innerHTML attribute. Hope this makes the scenario clearer. Regards, Bharat --~--~---------~--~----~------------~-------~--~----~ 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-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
Bharat, Think about it in a different way. The web page talks to the server, the server talks back using RJS. The server can manipulate and update the page using RJS, but by the time you are using RJS to talk back to the page, your round trip is over. Depending on what you are trying to do, you might use a bit of javascript to read the innerHtml of a div, send it to the server, then the server will know what is inside that div and can respond back to the page using RJS. hope this helps, nathan On 11/9/06, Bharat <bharata-k+Hz54J8xG4AvxtiuMwx3w@public.gmane.org> wrote:> > > Hi Chris, > > Basically I am doing an ajax update of a div. I would like to ensure > that the new text coming down from the server is not already present in > the div. I understand that RJS is executed on the server and > translated to javascript. I was hoping that there is a RJS method which > translates into getting an innerHTML attribute. > > Hope this makes the scenario clearer. > > Regards, > Bharat > > > > >-- _______________________________ portland, or: 01 (503) 608-7950 cuernavaca, mx: 52 (777) 318-9094 --~--~---------~--~----~------------~-------~--~----~ 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-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
Nathan, I did think of trying that however the problem is I am unable to get information from js into ruby code. I could for ex pass the innerhtml as a string as part of a link_to_remote call but how do I get the innerhtml into a ruby variable. Regards, Bharat --~--~---------~--~----~------------~-------~--~----~ 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-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
I have had a similar problem before and have dropped down into
Javascript to send of the value of a dom element, in my case sending
multiple values of a form in an observe function. To which i used this.
<%= observe_field :postcode,
:url => {:action => "dupelist"},
:frequency => 0.5,
:with => "''surname='' +
escape(document.getElementById(''dom_id_surname'').value)",
:update => "dupelist"
%>
and within the controller access surname via params[:surname].
i know that this is not a link_to_remote function but at least an idea
you can work from.
Regards,
Andy
--~--~---------~--~----~------------~-------~--~----~
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-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---
This is untested, but something like this might work for you:
<script type="text/javascript">
function getMyDiv() {
var id = escape( $(''div_id'').innerHTML );
new Ajax.Request ( ''/controller/action/''+id );
}
</script>
<%= link_to_function ''click here'', "getMyDiv()"
%>
then in your controller you can access whatever is inside the div with
params[:id]
regards,
nathan
On 11/10/06, Bharat <bharata-k+Hz54J8xG4AvxtiuMwx3w@public.gmane.org>
wrote:>
>
> Nathan,
>
> I did think of trying that however the problem is I am unable to get
> information from js into ruby code. I could for ex pass the innerhtml
> as a string as part of a link_to_remote call but how do I get the
> innerhtml into a ruby variable.
>
> Regards,
> Bharat
>
>
> >
>
--
_______________________________
portland, or: 01 (503) 608-7950
cuernavaca, mx: 52 (777) 318-9094
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---
if you don''t need to do anything on the server side with the element
content, ie, you''re only using it for comparison purposes, then
don''t
send it. do the comparison on the browser side. you''ve already sent
an ajax request at this point, might as well send something back with
the response.
off the top of my head...
rjs:
page.call(''myfunction'', ''div1'',
''newcontent'')
js function:
function myfunction(element, content) {
// only update if content is different
if($(element).innerHTML != content) {
Element.update(element, content);
}
}
On 11/10/06, nathan <n8-D/c2TTLjVRVehVLk5KBxvAC/G2K4zDHf@public.gmane.org>
wrote:> This is untested, but something like this might work for you:
>
> <script type="text/javascript">
> function getMyDiv() {
> var id = escape( $(''div_id'').innerHTML );
> new Ajax.Request ( ''/controller/action/''+id );
> }
> </script>
> <%= link_to_function ''click here'',
"getMyDiv()" %>
>
> then in your controller you can access whatever is inside the div with
> params[:id]
>
> regards,
> nathan
>
> On 11/10/06, Bharat <bharata-k+Hz54J8xG4AvxtiuMwx3w@public.gmane.org>
wrote:
> >
> > Nathan,
> >
> > I did think of trying that however the problem is I am unable to get
> > information from js into ruby code. I could for ex pass the innerhtml
> > as a string as part of a link_to_remote call but how do I get the
> > innerhtml into a ruby variable.
> >
> > Regards,
> > Bharat
> >
> >
> >
> >
> >
>
>
>
> --
> _______________________________
>
> portland, or: 01 (503) 608-7950
> cuernavaca, mx: 52 (777) 318-9094
> >
>
--~--~---------~--~----~------------~-------~--~----~
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-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---
Thanks a lot folks!! Problem solved, I use Chris''s method, however it would have been nice if I could have done the code generation using rjs rather than write javascript. oh well! maybe this will get into rjs sometime later. Thanks again, Bharat --~--~---------~--~----~------------~-------~--~----~ 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-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---