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sinm

2008-Mar-13 09:26 UTC

RJS template dont-know-how

Hello!

Get a problem out here. I need to update flash notice with every one
remote request. Flash.now[:notice] does that trick but not for
remoting methods. So I''ve applied some after_filter (say
clear_notice_on_xhr) but its render method not evaluating or i can''t
see the result:
  def clear_notice_on_xhr
    return unless request.xhr?
    render :update do |page|
      page.replace_html("notice" , :partial =>
"layouts/notice")
    end
    rescue
      nil
  end

Help!
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Frederick Cheung

2008-Mar-13 09:30 UTC

head link

Re: RJS template dont-know-how

On 13 Mar 2008, at 09:26, sinm wrote:
>
> Hello!
>
> Get a problem out here. I need to update flash notice with every one
> remote request. Flash.now[:notice] does that trick but not for
> remoting methods. So I''ve applied some after_filter (say
> clear_notice_on_xhr) but its render method not evaluating or i
can''t
> see the result:
>  def clear_notice_on_xhr
>    return unless request.xhr?
>    render :update do |page|
>      page.replace_html("notice" , :partial =>
"layouts/notice")
>    end
>    rescue
>      nil
>  end
If I were you I''d remove that rescue nil statement as that will  
swallow any errors that might be telling you what is wrong.

Fred

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sinm

2008-Mar-13 09:36 UTC

head link

Re: RJS template dont-know-how

ActionController::DoubleRenderError (Can only render or redirect once
per action) raises. So, thats the problem - I cant "inject" RJS into
template.
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sinm

2008-Mar-13 12:23 UTC

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Re: RJS template dont-know-how

Anyone?

On Mar 13, 12:26 pm, sinm
<sinm.s...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Hello!
>
> Get a problem out here. I need to update flash notice with every one
> remote request. Flash.now[:notice] does that trick but not for
> remoting methods. So I''ve applied some after_filter (say
> clear_notice_on_xhr) but its render method not evaluating or i
can''t
> see the result:
>   def clear_notice_on_xhr
>     return unless request.xhr?
>     render :update do |page|
>       page.replace_html("notice" , :partial =>
"layouts/notice")
>     end
>     rescue
>       nil
>   end
>
> Help!--~--~---------~--~----~------------~-------~--~----~
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Frederick Cheung

2008-Mar-13 12:37 UTC

head link

Re: RJS template dont-know-how

On 13 Mar 2008, at 12:23, sinm wrote:
>
> Anyone?
You;ve already found the problem: you''ve already rendered, so you  
can''t render again. If people could see the whole story rather than  
just one bit, someone might be able to suggest an alternative.

Fred.>
>
> On Mar 13, 12:26 pm, sinm
<sinm.s...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> Hello!
>>
>> Get a problem out here. I need to update flash notice with every one
>> remote request. Flash.now[:notice] does that trick but not for
>> remoting methods. So I''ve applied some after_filter (say
>> clear_notice_on_xhr) but its render method not evaluating or i
can''t
>> see the result:
>>  def clear_notice_on_xhr
>>    return unless request.xhr?
>>    render :update do |page|
>>      page.replace_html("notice" , :partial =>
"layouts/notice")
>>    end
>>    rescue
>>      nil
>>  end
>>
>> Help!
> >

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sinm

2008-Mar-13 12:41 UTC

head link

Re: RJS template dont-know-how

I found the problem but i dont know how to solve it.
Story:
I want to evaluate the same page.replace_html method in every rjs
template.
Question:
How to do that?

On Mar 13, 3:37 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> On 13 Mar 2008, at 12:23, sinm wrote:
>
>
>
> > Anyone?
>
> You;ve already found the problem: you''ve already rendered, so you
> can''t render again. If people could see the whole story rather
than
> just one bit, someone might be able to suggest an alternative.
>
> Fred.
>
>
>
> > On Mar 13, 12:26 pm, sinm
<sinm.s...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >> Hello!
>
> >> Get a problem out here. I need to update flash notice with every
one
> >> remote request. Flash.now[:notice] does that trick but not for
> >> remoting methods. So I''ve applied some after_filter (say
> >> clear_notice_on_xhr) but its render method not evaluating or i
can''t
> >> see the result:
> >>  def clear_notice_on_xhr
> >>    return unless request.xhr?
> >>    render :update do |page|
> >>      page.replace_html("notice" , :partial =>
"layouts/notice")
> >>    end
> >>    rescue
> >>      nil
> >>  end
>
> >> Help!--~--~---------~--~----~------------~-------~--~----~
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maerzbow

2008-Mar-13 12:46 UTC

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Re: RJS template dont-know-how

I think it does not work to implement it as ''after_filter'' as
long the
action executed before that filter calls ''render'', too.


so for example:

def index
    ...
   # calls (implecitely) render index.erb.html # or in your case
another rjs
end


def clear_notice_on_xhr
    return unless request.xhr?
    # CALLS RENDER AGAIN ON THE SAME HTTP REQUEST
    # that doesnt work ''cause IMHO rails does not know how to merge
these 2 render outputs
    render :update do |page|
      page.replace_html("notice" , :partial =>
"layouts/notice")
    end
    rescue
      nil
  end


mercy
blog.odeley.com




On 13 Mrz., 13:23, sinm
<sinm.s...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Anyone?
>
> On Mar 13, 12:26 pm, sinm
<sinm.s...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>
>
> > Hello!
>
> > Get a problem out here. I need to update flash notice with every one
> > remote request. Flash.now[:notice] does that trick but not for
> > remoting methods. So I''ve applied some after_filter (say
> > clear_notice_on_xhr) but its render method not evaluating or i
can''t
> > see the result:
> >   def clear_notice_on_xhr
> >     return unless request.xhr?
> >     render :update do |page|
> >       page.replace_html("notice" , :partial =>
"layouts/notice")
> >     end
> >     rescue
> >       nil
> >   end
>
> > Help!- Zitierten Text ausblenden -
>
> - Zitierten Text anzeigen ---~--~---------~--~----~------------~-------~--~----~
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sinm

2008-Mar-13 14:03 UTC

head link

Re: RJS template dont-know-how

Ok. I know from the beginning that DoubleRenderError, but how to
include that same page.replace_html method in every rjs
template? Rails seemed to be dynamic and powerful but in fact i cant
implement that very simple scenario... silly.



On Mar 13, 3:46 pm, maerzbow
<maerz...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> I think it does not work to implement it as
''after_filter'' as long the
> action executed before that filter calls ''render'', too.
>
> so for example:
>
> def index
>     ...
>    # calls (implecitely) render index.erb.html # or in your case
> another rjs
> end
>
> def clear_notice_on_xhr
>     return unless request.xhr?
>     # CALLS RENDER AGAIN ON THE SAME HTTP REQUEST
>     # that doesnt work ''cause IMHO rails does not know how to
merge
> these 2 render outputs
>     render :update do |page|
>       page.replace_html("notice" , :partial =>
"layouts/notice")
>     end
>     rescue
>       nil
>   end
>
> mercy
> blog.odeley.com
>
> On 13 Mrz., 13:23, sinm
<sinm.s...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > Anyone?
>
> > On Mar 13, 12:26 pm, sinm
<sinm.s...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > > Hello!
>
> > > Get a problem out here. I need to update flash notice with every
one
> > > remote request. Flash.now[:notice] does that trick but not for
> > > remoting methods. So I''ve applied some after_filter (say
> > > clear_notice_on_xhr) but its render method not evaluating or i
can''t
> > > see the result:
> > >   def clear_notice_on_xhr
> > >     return unless request.xhr?
> > >     render :update do |page|
> > >       page.replace_html("notice" , :partial =>
"layouts/notice")
> > >     end
> > >     rescue
> > >       nil
> > >   end
>
> > > Help!- Zitierten Text ausblenden -
>
> > - Zitierten Text anzeigen ---~--~---------~--~----~------------~-------~--~----~
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Mark Bush

2008-Mar-13 16:06 UTC

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Re: RJS template dont-know-how

sinm wrote:> Ok. I know from the beginning that DoubleRenderError, but how to
> include that same page.replace_html method in every rjs
> template? Rails seemed to be dynamic and powerful but in fact i cant
> implement that very simple scenario... silly.
Rather than use a partial, create the text in your after_filter method 
and add a call to the end of the response body to action it as 
javascript.  This is a little messy, but you could hide it away.  There 
may well be an easier way, but this seems to work for me:

after_filter :clear_notice_on_xhr

def clear_notice_on_xhr
  new_text = "New flash notice created here"
  script = <<EOS
<script type="text/javascript">
//<![CDATA[
$(''notice'').update(''#{new_text}'')
//]]>
</script>
EOS
  response.body << script
end

This assumes you are including the Prototype javascript library in your 
pages (will need re-writing otherwise) and the tag where you display 
your flash has an id of "notice".
-- 
Posted via http://www.ruby-forum.com/.

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sinm

2008-Mar-13 20:58 UTC

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Re: RJS template dont-know-how

Thanx Mark for your try!
Really messy but it really works.
Finally i ended up with slightly different version.

  after_filter :clear_notice_on_xhr

  #TODO: bad smell
  def clear_notice_on_xhr
    return unless request.xhr?
    response.body =
"$(''notice'').update('''');" +
response.body
    rescue
      nil #optional
  end


On Mar 13, 7:06 pm, Mark Bush
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:> sinm wrote:
> > Ok. I know from the beginning that DoubleRenderError, but how to
> > include that same page.replace_html method in every rjs
> > template? Rails seemed to be dynamic and powerful but in fact i cant
> > implement that very simple scenario... silly.
>
> Rather than use a partial, create the text in your after_filter method
> and add a call to the end of the response body to action it as
> javascript.  This is a little messy, but you could hide it away.  There
> may well be an easier way, but this seems to work for me:
>
> after_filter :clear_notice_on_xhr
>
> def clear_notice_on_xhr
>   new_text = "New flash notice created here"
>   script = <<EOS
> <script type="text/javascript">
> //<![CDATA[
> $(''notice'').update(''#{new_text}'')
> //]]>
> </script>
> EOS
>   response.body << script
> end
>
> This assumes you are including the Prototype javascript library in your
> pages (will need re-writing otherwise) and the tag where you display
> your flash has an id of "notice".
> --
> Posted viahttp://www.ruby-forum.com/.--~--~---------~--~----~------------~-------~--~----~
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Rails - Mar 2008 - RJS template dont-know-how

RJS template dont-know-how

Re: RJS template dont-know-how

Re: RJS template dont-know-how

Re: RJS template dont-know-how

Re: RJS template dont-know-how

Re: RJS template dont-know-how

Re: RJS template dont-know-how

Re: RJS template dont-know-how

Re: RJS template dont-know-how

Re: RJS template dont-know-how