Camping list - May 2007 - How to create a drop-down list with Markaby?

Hi

I couldn''t figure out, how to create a drop-down list with Markaby. How
would I create something like this:

        <select name="character">
          <option value="marvin">Marvin the paranoid
Android</option>
          <option value="arthur">Arthur Dent</option>
          <option value="zaphod">Zaphod
Beeblebrox</option>
          <option value="trillian">Tricia
McMillan</option>
          <option value="ford">Ford Prefect</option>
        </select>

with Markaby?

Thanks,
Thomas
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Thomas Weibel wrote:
> Hi
>
> I couldn''t figure out, how to create a drop-down list with
Markaby. How
> would I create something like this:
>
>         <select name="character">
>           <option value="marvin">Marvin the paranoid
Android</option>
>           <option value="arthur">Arthur Dent</option>
>           <option value="zaphod">Zaphod
Beeblebrox</option>
>           <option value="trillian">Tricia
McMillan</option>
>           <option value="ford">Ford Prefect</option>
>         </select>
>
> with Markaby?
>
> Thanks,
> Thomas
>   
> ------------------------------------------------------------------------
>
> _______________________________________________
> Camping-list mailing list
> Camping-list at rubyforge.org
> http://rubyforge.org/mailman/listinfo/camping-list
Something like this is maybe what you want:

  # form for selecting projects to backup.
  def _backup_projects_form

    if @res then
      b "Status:"; _status_type(@res[0]);
      p text(@res[1])
    else
      span.warning do
        ''backing up a project can take several minutes''
      end
      p ''Select project(s) to backup: '';
      form :id => :backupprojects, :method => :post, :action =>
R(Backup) do
      tag! :select, :name => ''project_list'' do 
#,:multiple=>:multiple,:size=>10
        _active_projects_list.each do |p|
          tag! :option, p
        end
      end
      br
      input :type => :submit, :value => ''Backup Selected
Projects''
      end
    end
  end

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On 03/05/07, Thomas Weibel <ml at beeblebrox.net>
wrote:
> I couldn''t figure out, how to create a drop-down list with
Markaby. How
> would I create something like this:
>
>         <select name="character">
>           <option value="marvin">Marvin the paranoid
Android</option>
>           <option value="arthur">Arthur Dent</option>
>           <option value="zaphod">Zaphod
Beeblebrox</option>
>           <option value="trillian">Tricia
McMillan</option>
>           <option value="ford">Ford Prefect</option>
>         </select>
>
> with Markaby?
This works for me (Markaby 0.5)...

    html = Markaby::Builder.new do
      select :name => ''character'' do
        option ''Marvin the paranoid Android'', :value =>
''marvin''
        option ''Arthur Dent'', :value =>
''arthur''
        option ''Zaphod Beeblebrox'', :value =>
''zaphod''
        option ''Tricia McMillan'', :value =>
''trillian''
        option ''Ford Prefect'', :value =>
''ford''
      end
    end

On May 3, 2007, at 3:03 PM, Thomas Weibel wrote:
> Hi
>
> I couldn''t figure out, how to create a drop-down list with
Markaby.
> How
> would I create something like this:
>
>         <select name="character">
>           <option value="marvin">Marvin the paranoid
Android</option>
>           <option value="arthur">Arthur Dent</option>
>           <option value="zaphod">Zaphod
Beeblebrox</option>
>           <option value="trillian">Tricia
McMillan</option>
>           <option value="ford">Ford Prefect</option>
>         </select>
Here''s a helper method I use with Camping.  You can pass in a simple  
array if your value matches your display text like ["value1",  
"value2", ...], or nested array pairs of [ ["value1",  
"display1"], ... ] if they don''t.

   def select_form(action, label_text, field_name, option_list,  
button_text = "Submit")
     form :action => action, :method => "post" do
       label label_text; br
       select :name => field_name do
         option_list.each do |value, text|
           option(text || value, :value => value)
         end
       end
       input :type => "submit", :value => button_text
     end
   end

Your example above would look something like:

   options = [ ["marvin", "Marvin the paranoid Android"],
     ["arthur", "Arthur Dent"], ... ]
   select_form(R(MyController), "Select a hitchhiker:",
"character",
options)

It should also be easy to extract just the <select> portion.  In fact  
I think I''ll do that on my end too...

John

-- 
"The Internet is not something you just dump something
on.  It''s not a big truck.  It''s a series of tubes."
  --Senator Ted Stevens, R-AK

John R. Sheets
http://bark.metacasa.net



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Thanks for all your answers, I finally got it working.

It''s a shame, Markaby is not documented more detailed.

Thanks again,
Thomas
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On Fri, May 04, 2007 at 04:26:40PM +0200, Thomas Weibel
wrote:
> One more thing: How would I preselect a certain entry like this?
    option ''Marvin'', :value => "marvin",
:selected => "selected"
-- 
<http://necronomicorp.com/bct>
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One more thing: How would I preselect a certain entry like this?

<select name="character">
        <option value="marvin" selected>Marvin the paranoid
        Android</option>
        <option value="arthur">Arthur Dent</option>
        <option value="zaphod">Zaphod Beeblebrox</option>
</select>

Thanks,
Thomas
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On Fri, 2007-05-04 at 16:26 +0200, Thomas Weibel wrote:
> One more thing: How would I preselect a certain entry like this?
Never mind, I figured it out:

      @roles.each { |k,v|
        if @user and @roles[@user.role].to_s == v.to_s
          option v.to_s, :value => k, :selected => "selected"
        else
          option v.to_s, :value => k
        end
      }

Obviously, XHTML need "selected=''selected''" anyway.

Thomas
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