Rails - May 2006 - undefined method `redirect_to''

Hi all

I have followed this tute: 
http://hivelogic.com/articles/2005/12/01/ruby_rails_lighttpd_mysql_tiger

to get rails running and all is fine except for getting:

undefined method `redirect_to''

when I load my test page.

I have the following in my xx.rhtml:

<%= select :group, :user_id, find_all_groups, {}, {:onclick => 
select_group, :size => find_all_groups.size + 1} %>

and in my xx_helper.rb I have:

  def select_group
    redirect_to "http://www.rubyonrails.org"
  end

I have installed actionpack.

Any help with the problem would be greatly appreciated.

Cheers,
Mark

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

redirect_to is a method of controller, maybe you cannot write it in helper 
i guess.

On 5/31/06, chenge <chenge2k@gmail.com> wrote:
>
>
>
> redirect_to is a method of controller, maybe you cannot write it in helper
> i guess.


There is another redirect_to but it''s part of  the Javascript Generator
(RJS) not the general view.

I think if you include the following statement at the top of your controller
it should do what you want.

helper_method :redirect_to



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> There is another redirect_to but it''s part of  the Javascript
Generator
> (RJS) not the general view.
> 
> I think if you include the following statement at the top of your 
> controller
> it should do what you want.
> 
> helper_method :redirect_to
Thanks. This worked.

Mark

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

Daniel ----- wrote:
> On 5/31/06, chenge <chenge2k@gmail.com> wrote:
>>
>>
>>
>> redirect_to is a method of controller, maybe you cannot write it in
helper
>> i guess.
> 
> 
> 
> There is another redirect_to but it''s part of  the Javascript
Generator
> (RJS) not the general view.
> 
> I think if you include the following statement at the top of your 
> controller
> it should do what you want.
> 
> helper_method :redirect_to
The first solution will work, the second will not.

When called in a controller redirect_to takes the place of a render. 
You can''t do a redirect_to and a render.  redirect_to sends the browser
a basically empty response with the proper headers to tell the browser 
to look somewhere else for the requested content.  So if the page is 
already rendering this won;t work at all.

redirect_to from RJS will create the necesary javascript to change the 
page you are viewing.  Most likely you want to do this form your 
controller.  But if you really really want to do it from a helper called 
while rendering a page, do this:

  def rjs_redirect_to(url)
    render(:update) do |page|
      page.redirect_to url
    end
  end

Then:

  <%= rjs_redirect_to ''http://rubyonrails.com'' %>

Which would yield something like:

  <script type="text/javascript">
    location.href="http://rubyonrails.com";
  </script>

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

Alex Wayne wrote:
> When called in a controller redirect_to takes the place of a render. 
> You can''t do a redirect_to and a render.  redirect_to sends the
browser
> a basically empty response with the proper headers to tell the browser 
> to look somewhere else for the requested content.  So if the page is 
> already rendering this won;t work at all.
Ahh, ok. Thanks.
> redirect_to from RJS will create the necesary javascript to change the 
> page you are viewing.  Most likely you want to do this form your 
> controller.  But if you really really want to do it from a helper called 
> while rendering a page, do this:
I am new to rails/ruby so had no idea it was best to put it into the 
controller.

A bit of background, I have a list of "groups" I want the user to
choose
from. When the user clicks on a group I want to store the selected group 
using sessions and then redirect the user to another page/controller.
>   def rjs_redirect_to(url)
>     render(:update) do |page|
>       page.redirect_to url
>     end
>   end
> 
> Then:
> 
>   <%= rjs_redirect_to ''http://rubyonrails.com'' %>
> 
> Which would yield something like:
> 
>   <script type="text/javascript">
>     location.href="http://rubyonrails.com";
>   </script>
I have tried to use your code but I have not had much success. Using my 
example, is this correct?

<%= select :group, :user_id, find_all_groups, {}, {:onclick => 
rjs_redirect_to(''patient''), :size => find_all_groups.size +
1} %>

The code above results in an unrendered page displaying the html as 
code.

Any hints would be great?

Cheers,
Mark

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