Rails - Oct 2006 - datetime_select generates html code that I can't have access

Hello:

<%= datetime_select ''datetime''+@indice.to_s,
''end_date'' , :start_year =>
2006%>

generates:
<TD  colspan=2 ><select name="datetime0[end_date(1i)]">
<option value="2006"
selected="selected">2006</option>
<option value="2007">2007</option>
<option value="2008">2008</option>
<option value="2009">2009</option>

<option value="2010">2010</option>
<option value="2011">2011</option>
</select>
<select name="datetime0[end_date(2i)]">
<option value="1">January</option>
<option value="2">February</option>
<option value="3">March</option>
....

And I want to access the value that the user has selected. I have tried 
with
document.form_event.datetime0[end_date(1i)]
but javascript gives me an error: "missing ) after argument list" just
after the (1i)
any idea
thanks in advance

-- 
Posted via http://www.ruby-forum.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
-~----------~----~----~----~------~----~------~--~---

Enrique Barraorion wrote:
> <%= datetime_select ''datetime''+@indice.to_s,
''end_date'' , :start_year =>
> 2006%>
>
> generates:
> <select name="datetime0[end_date(1i)]">
>
> And I want to access the value that the user has selected. I have tried
> with
> document.form_event.datetime0[end_date(1i)]
> but javascript gives me an error: "missing ) after argument list"
just
> after the (1i)
I''ve just been grappling with this. The problem is that JavaScript
expects you to use the IDs of elements to reference them, not the
names. But when Rails generates these ''select'' tags, it only
sets the
''name'' attribute, and as far as I can see there''s no
easy way to set
the ''id'' attribute.

Ideally, if you could generate a select tag that looked like this:

<select name="datetime0[end_date(1i)]"
id="datetime0_end_date_1i">

then you could grab it in JavaScript with

document.getElementById(''datetime0_end_date_1i");

(Notice that names can contain funny characters like ''['',
'']'', ''('' and
'')'', whereas IDs don''t).

Alternatively, it is possible to select an element by its name, but it
involves cycling through elements to find it. For example, if you''re
using the Prototype JavaScript library, you can do something like

var selects =
$(''my_form'').getElementsByTag(''select'');
for (var i = 0; i < selects.length; i++) {
  var select = selects[i];
  if (select.name == "datetime0[end_date(1i)]") {
    alert(select.value);
  }
}

assuming that your form has an ID like

<form action="..." id="my_form">

But I''m sure you''ll agree that''s hardly elegant.

Chris


--~--~---------~--~----~------------~-------~--~----~
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
-~----------~----~----~----~------~----~------~--~---

> <%= datetime_select ''datetime''+@indice.to_s,
''end_date'' , :start_year =>
> 2006%>
>
> generates:
> <TD  colspan=2 ><select
name="datetime0[end_date(1i)]">
> <option value="2006"
selected="selected">2006</option>
> <option value="2007">2007</option>
> <option value="2008">2008</option>
> <option value="2009">2009</option>
>
> <option value="2010">2010</option>
> <option value="2011">2011</option>
> </select>
> <select name="datetime0[end_date(2i)]">
> <option value="1">January</option>
> <option value="2">February</option>
> <option value="3">March</option>
> ....
>
> And I want to access the value that the user has selected. I have tried
> with
> document.form_event.datetime0[end_date(1i)]
> but javascript gives me an error: "missing ) after argument list"
just
> after the (1i)
> any idea
> thanks in advance
I think something like this would work...

document.form_event.elements["datetime0[end_date(1i)]"].xxxxxxx

-philip

--~--~---------~--~----~------------~-------~--~----~
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
-~----------~----~----~----~------~----~------~--~---

Philip Hallstrom wrote:
>> <option value="2010">2010</option>
>> document.form_event.datetime0[end_date(1i)]
>> but javascript gives me an error: "missing ) after argument
list" just
>> after the (1i)
>> any idea
>> thanks in advance
> 
> I think something like this would work...
> 
> document.form_event.elements["datetime0[end_date(1i)]"].xxxxxxx
> 
> -philip
Thank you very much. That worked very well.
I would have never realized about it
thanks
thanks
thanks

-- 
Posted via http://www.ruby-forum.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
-~----------~----~----~----~------~----~------~--~---

Philip Hallstrom wrote:
> document.form_event.elements["datetime0[end_date(1i)]"].xxxxxxx
Holy crap, that''s fantastic. How have I managed to not notice this
before?

Thanks!

Chris


--~--~---------~--~----~------------~-------~--~----~
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
-~----------~----~----~----~------~----~------~--~---