Rails - Oct 2005 - Typo code review question

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Select a page to edit.
At the bottom of the page, I get a drop down for ''textfilter''
which works
just fine . I am wondering how this drop down is actually workign. I rightly
shows the value from the database as pre selected but I didn''t find
that the
value from database was being passed as an argument.

Followings is the code:

In _form.rhtml

<label for="page_text_filter">Textfilter: </label>
<%= select ''page'', ''text_filter'',
text_filter_options %>


In base_helper.rb

def text_filter_options
text_filter_options = Array.new
text_filter_options << [ ''None'',
''none'' ]
text_filter_options << [ ''Textile'',
''textile'' ] if defined?(RedCloth)
text_filter_options << [ ''Markdown'',
''markdown'' ] if defined?(BlueCloth)
text_filter_options << [ ''SmartyPants'',
''smartypants'' ] if
defined?(RubyPants)
text_filter_options << [ ''Markdown with SmartyPants'',
''markdown smartypants''
] if defined?(RubyPants) and defined?(BlueCloth)
text_filter_options
end


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On 31.10.2005, at 18.28, Neeraj Kumar wrote:
> Login to edit an existing page.
> Select a page to edit.
> At the bottom of the page, I get a drop down for
''textfilter'' which
> works just fine . I am wondering how this drop down is actually  
> workign. I rightly shows the value from the database as pre  
> selected but I didn''t find that the value from database was being
> passed as an argument.
>
> Followings is the code:
>
> In _form.rhtml
>
> <label for="page_text_filter">Textfilter: </label>
> <%= select ''page'', ''text_filter'',
text_filter_options %>
select helper assumes that there is an object called @page with a  
method called text_filter at hand. The pre-selected value will by  
default be what that method for that particular object returns. This  
happens automagically, you don''t have to pass the selected value  
explicitly.

//jarkko
>
>
> In base_helper.rb
>
>   def text_filter_options
>     text_filter_options = Array.new
>     text_filter_options << [ ''None'',
''none'' ]
>     text_filter_options << [ ''Textile'',
''textile'' ] if defined?
> (RedCloth)
>     text_filter_options << [ ''Markdown'',
''markdown'' ] if defined?
> (BlueCloth)
>     text_filter_options << [ ''SmartyPants'',
''smartypants'' ] if
> defined?(RubyPants)
>     text_filter_options << [ ''Markdown with
SmartyPants'', ''markdown
> smartypants'' ] if defined?(RubyPants) and defined?(BlueCloth)
>     text_filter_options
>   end
>
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> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
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>
--
Jarkko Laine
http://jlaine.net
http://odesign.fi



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