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Maite Piedra

2008-Aug-22 13:42 UTC

check_box with problem

hello list!!!

I have this in my proyect

in my controller
  def elegir
   @mercado=Mercado.find(:all)
   @empresas=Empresa.find(:first)
      respond_to do |format|
        format.html {render :layout => false}
      end
  end

elegir view is

<p>
<b>Mercados:</b><br /><br />
<%i=1%>
<% @mercado.each do |mercado| %>
<div>
<%= check_box_tag "empresa[mercado_ids][]", mercado.id,
@empresas.mercados.include?(mercado),
{:onclick => remote_function(:url =>{:action => "mostrar2",
:id_valor
=>i}, :with => "''id=#{mercado.id}''")} %>
<%= mercado.nombre %><div id="muestra_i"></div>
</div>
<%i=i+1%>
<% end %>
</p>

I pass diferent muestra_i for check_box
and mostrar2 is...

def mostrar2
    @empresa = []
    @mercado= Mercado.find(params[:id])
    @empresa << @mercado.empresas
    render :update do |page|
        page.replace_html ''muestra_'' + params[:id_valor],
:partial =>
''muestra2'', :object => @empresa
end
end

but when I click on the check_box, this is the messages

TypeError: element is null

Element.update("muestra_2", "\n\n\u003Cbr
/\u003E\n\u003Cp\u003ELas
empresas de este mercado son \n\n  \u003Cp\u003E\u003Cb\u003ENombre:
\u003C/b\u003E acciona \u003C/p\u003E\n\u003C/p\u003E\n\n
\u003Cp\u003E\u003Cb\u003ENombre: \u003C/b\u003E gtf
\u003C/p\u003E\n\u003C/p\u003E\n\n\n");

and my file development.log write this

Completed in 0.29700 (3 reqs/sec) | Rendering: 0.04700 (15%) | DB:
0.09500 (31%) | 200 OK [http://localhost/mercados/mostrar2?id_valor=2]

any idea???

thanks
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Frederick Cheung

2008-Aug-22 13:45 UTC

head link

Re: check_box with problem

On Aug 22, 2:42 pm, Maite Piedra
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:> <p>
> <b>Mercados:</b><br /><br />
> <%i=1%>
> <% @mercado.each do |mercado| %>
> <div>
> <%= check_box_tag "empresa[mercado_ids][]", mercado.id,
> @empresas.mercados.include?(mercado),
> {:onclick => remote_function(:url =>{:action =>
"mostrar2", :id_valor
> =>i}, :with => "''id=#{mercado.id}''")}
%>
> <%= mercado.nombre %><div id="muestra_i"></div>
The error message is telling you that you don''t have an element with
id muestra_2. Have you checked the html you generate?
I bet you''ll find that all your divs are <div
id="muestra_i"> (and not
<div id="muestra_1">, <div id="muestra_2">, ..._

Fred

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\"Wolas!\"

2008-Aug-22 14:07 UTC

head link

Re: check_box with problem

<div id="muestra_i">

deberia ser

<div id="muestra<%= i  %>">

On Aug 22, 2:45 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> On Aug 22, 2:42 pm, Maite Piedra
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
> wrote:
>
> > <p>
> > <b>Mercados:</b><br /><br />
> > <%i=1%>
> > <% @mercado.each do |mercado| %>
> > <div>
> > <%= check_box_tag "empresa[mercado_ids][]", mercado.id,
> > @empresas.mercados.include?(mercado),
> > {:onclick => remote_function(:url =>{:action =>
"mostrar2", :id_valor
> > =>i}, :with =>
"''id=#{mercado.id}''")} %>
> > <%= mercado.nombre %><div
id="muestra_i"></div>
>
> The error message is telling you that you don''t have an element
with
> id muestra_2. Have you checked the html you generate?
> I bet you''ll find that all your divs are <div
id="muestra_i"> (and not
> <div id="muestra_1">, <div id="muestra_2">,
..._
>
> Fred--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
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\"Wolas!\"

2008-Aug-22 14:08 UTC

head link

Re: check_box with problem

Another thing. instead of

i = 0
@collection.each do |obj|
   obj += i

end

you can do:

@collecation.each_with_index |obj, i|
  ...
end


same thing, more readable.

On Aug 22, 2:45 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> On Aug 22, 2:42 pm, Maite Piedra
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
> wrote:
>
> > <p>
> > <b>Mercados:</b><br /><br />
> > <%i=1%>
> > <% @mercado.each do |mercado| %>
> > <div>
> > <%= check_box_tag "empresa[mercado_ids][]", mercado.id,
> > @empresas.mercados.include?(mercado),
> > {:onclick => remote_function(:url =>{:action =>
"mostrar2", :id_valor
> > =>i}, :with =>
"''id=#{mercado.id}''")} %>
> > <%= mercado.nombre %><div
id="muestra_i"></div>
>
> The error message is telling you that you don''t have an element
with
> id muestra_2. Have you checked the html you generate?
> I bet you''ll find that all your divs are <div
id="muestra_i"> (and not
> <div id="muestra_1">, <div id="muestra_2">,
..._
>
> Fred--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
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Frederick Cheung

2008-Aug-22 14:11 UTC

head link

Re: check_box with problem

On 22 Aug 2008, at 15:08, Wolas! wrote:
>
> Another thing. instead of
>
> i = 0
> @collection.each do |obj|
>   obj += i
>
> end
>
> you can do:
>
> @collecation.each_with_index |obj, i|
>  ...
> end
Or use a partial.

Fred>
>
>
> same thing, more readable.
>
> On Aug 22, 2:45 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
>> On Aug 22, 2:42 pm, Maite Piedra
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
>> wrote:
>>
>>> <p>
>>> <b>Mercados:</b><br /><br />
>>> <%i=1%>
>>> <% @mercado.each do |mercado| %>
>>> <div>
>>> <%= check_box_tag "empresa[mercado_ids][]",
mercado.id,
>>> @empresas.mercados.include?(mercado),
>>> {:onclick => remote_function(:url =>{:action =>  
>>> "mostrar2", :id_valor
>>> =>i}, :with =>
"''id=#{mercado.id}''")} %>
>>> <%= mercado.nombre %><div
id="muestra_i"></div>
>>
>> The error message is telling you that you don''t have an
element with
>> id muestra_2. Have you checked the html you generate?
>> I bet you''ll find that all your divs are <div
id="muestra_i"> (and
>> not
>> <div id="muestra_1">, <div
id="muestra_2">, ..._
>>
>> Fred
> >

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\"Wolas!\"

2008-Aug-22 14:45 UTC

head link

Re: check_box with problem

Defenitely use a partial if you can. they save readability,
manageability and are just very cool ingeneral.

from docs:

# Renders the same partial with a local variable.
  render :partial => "person", :locals => { :name =>
"david" }

  # Renders the partial, making @new_person available through
  # the local variable ''person''
  render :partial => "person", :object => @new_person

  # Renders a collection of the same partial by making each element
  # of @winners available through the local variable "person" as it
  # builds the complete response.
  render :partial => "person", :collection => @winners

  # Renders the same collection of partials, but also renders the
  # person_divider partial between each person partial.
  render :partial => "person", :collection =>
@winners, :spacer_template => "person_divider"

  # Renders a collection of partials located in a view subfolder
  # outside of our current controller.  In this example we will be
  # rendering app/views/shared/_note.r(html|xml)  Inside the partial
  # each element of @new_notes is available as the local var "note".
  render :partial => "shared/note", :collection => @new_notes

  # Renders the partial with a status code of 500 (internal error).
  render :partial => "broken", :status => 500

On Aug 22, 3:11 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> On 22 Aug 2008, at 15:08, Wolas! wrote:
>
>
>
> > Another thing. instead of
>
> > i = 0
> > @collection.each do |obj|
> >   obj += i
>
> > end
>
> > you can do:
>
> > @collecation.each_with_index |obj, i|
> >  ...
> > end
>
> Or use a partial.
>
> Fred
>
>
>
> > same thing, more readable.
>
> > On Aug 22, 2:45 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > wrote:
> >> On Aug 22, 2:42 pm, Maite Piedra
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
> >> wrote:
>
> >>> <p>
> >>> <b>Mercados:</b><br /><br />
> >>> <%i=1%>
> >>> <% @mercado.each do |mercado| %>
> >>> <div>
> >>> <%= check_box_tag "empresa[mercado_ids][]",
mercado.id,
> >>> @empresas.mercados.include?(mercado),
> >>> {:onclick => remote_function(:url =>{:action =>  
> >>> "mostrar2", :id_valor
> >>> =>i}, :with =>
"''id=#{mercado.id}''")} %>
> >>> <%= mercado.nombre %><div
id="muestra_i"></div>
>
> >> The error message is telling you that you don''t have an
element with
> >> id muestra_2. Have you checked the html you generate?
> >> I bet you''ll find that all your divs are <div
id="muestra_i"> (and  
> >> not
> >> <div id="muestra_1">, <div
id="muestra_2">, ..._
>
> >> Fred--~--~---------~--~----~------------~-------~--~----~
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Maite Piedra

2008-Aug-22 18:01 UTC

head link

Re: check_box with problem

thanks for all, now it is ok
but I don´t undestand the last
> Defenitely use a partial if you can. they save readability,
> manageability and are just very cool ingeneral.
use partial where I have my check_box, in elegir.html.erb???

I use partial in mostrar2

    render :update do |page|
        page.replace_html ''muestra_'' + params[:id_valor],
:partial =>
''muestra2'', :object => @empresa

thanks again
-- 
Posted via http://www.ruby-forum.com/.

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Frederick Cheung

2008-Aug-22 20:02 UTC

head link

Re: check_box with problem

On 22 Aug 2008, at 19:01, Maite Piedra wrote:
>
>
> thanks for all, now it is ok
> but I don´t undestand the last
>
>> Defenitely use a partial if you can. they save readability,
>> manageability and are just very cool ingeneral.
>
> use partial where I have my check_box, in elegir.html.erb???
>No. the suggestion was replace

<%i=1%>
<% @mercado.each do |mercado| %>
<div>
<%= check_box_tag "empresa[mercado_ids][]", mercado.id,
@empresas.mercados.include?(mercado),
{:onclick => remote_function(:url =>{:action => "mostrar2",
:id_valor
=>i}, :with => "''id=#{mercado.id}''")} %>
<%= mercado.nombre %><div id="muestra_i"></div>
</div>
<%i=i+1%>
<% end %>

with

render :partial => ''mercado'', :collection => @mercado

Inside the mercado partial there will be a mercado_counter variable so  
you don''t need to mess around with that i variable

Fred


> I use partial in mostrar2
>
>    render :update do |page|
>        page.replace_html ''muestra_'' + params[:id_valor],
:partial =>
> ''muestra2'', :object => @empresa
>
> thanks again
> -- 
> Posted via http://www.ruby-forum.com/.
>
> >

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jasoo24

2008-Aug-24 00:04 UTC

head link

Re: check_box with problem

Adding to Fred''s suggestion, you would want to do this:

controller:
@mercados = Mercado.find :all

view:
render :partial => @mercados

partial:
<% div_for mercado %>
<%= check_box_tag "empresa[mercado_ids][]", mercado.id,
@empresas.mercados.include?(mercado), {:onclick =>
remote_function(:url =>{:action => "mostrar2", :id_valor=>i},
:with =>
"''id=#{mercado.id}''")} %>
<%= mercado.nombre %>
<% end %>


There are ways to clean this up more (for example, pass @empresas
through :local in the render partial declaration) and I believe some
of the functions I''ve used will only work this way under Rails 2+.
div_for will automatically create div id''s like
''mercado_3'', etc.

Hope this helps!

On Aug 22, 1:02 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> On 22 Aug 2008, at 19:01, Maite Piedra wrote:
>
>
>
> > thanks for all, now it is ok
> > but I don´t undestand the last
>
> >> Defenitely use a partial if you can. they save readability,
> >> manageability and are just very cool ingeneral.
>
> > use partial where I have my check_box, in elegir.html.erb???
>
> No. the suggestion was replace
>
> <%i=1%>
> <% @mercado.each do |mercado| %>
> <div>
> <%= check_box_tag "empresa[mercado_ids][]", mercado.id,
> @empresas.mercados.include?(mercado),
> {:onclick => remote_function(:url =>{:action =>
"mostrar2", :id_valor
> =>i}, :with => "''id=#{mercado.id}''")}
%>
> <%= mercado.nombre %><div id="muestra_i"></div>
> </div>
> <%i=i+1%>
> <% end %>
>
> with
>
> render :partial => ''mercado'', :collection =>
@mercado
>
> Inside the mercado partial there will be a mercado_counter variable so
> you don''t need to mess around with that i variable
>
> Fred
>
> > I use partial in mostrar2
>
> >    render :update do |page|
> >        page.replace_html ''muestra_'' +
params[:id_valor], :partial =>
> > ''muestra2'', :object => @empresa
>
> > thanks again
> > --
> > Posted viahttp://www.ruby-forum.com/.--~--~---------~--~----~------------~-------~--~----~
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Rails - Aug 2008 - check_box with problem

check_box with problem

Re: check_box with problem

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Re: check_box with problem

Re: check_box with problem

Re: check_box with problem

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Re: check_box with problem