Rails - Feb 2007 - TypeError in TemplateController

Hi
  I am new to Ruby programming.. I am facing one problem. I am
displaying the files under a particular directory. I have kept all the
directories as hyperlink. I have coded in such a way that when i click
on a particular directory it has to display all the files under that.

  But iam getting an error '' TypeError in TemplateController
can''t convert nil into String'' when i click on the link.

  This is the code snippet where iam taking all the files

    for file_name in 0..array_count-1
      if(@clicked_file==$subdirectory_files[file_name])
#        render_text("Selected file : " +
$subdirectory_files[file_name]);
        filepath=$theme_root + "/" + $current_directory +
"/" +
$clicked_link + "/" + $subdirectory_files[file_name];

        File.open(filepath,"r") do |f|
            f.each_line { |line|
            $theme_files=$theme_files+line;
            }
            end

      end
    end

This is the code snippet in .rhtml file

<div id="filenames">
<% if(!$subdirectory_files.empty?)%>
<% $subdirectory_files.each do |file_name|%>
<b><%= link_to_remote file_name, :update => "files",:url
=> { :action =>
"get_file_data", :id => file_name }%></b><br>
<%end%>
<%end%>
</div>

Please anyone help in this regard

Thanks,
Srividhya

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On 2/10/07, Sri Vidhya
<rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:
>
> Hi
>   I am new to Ruby programming.. I am facing one problem. I am
> displaying the files under a particular directory. I have kept all the
> directories as hyperlink. I have coded in such a way that when i click
> on a particular directory it has to display all the files under that.
>
>   But iam getting an error '' TypeError in TemplateController
> can''t convert nil into String'' when i click on the link.
>
>   This is the code snippet where iam taking all the files
>
>     for file_name in 0..array_count-1
>       if(@clicked_file==$subdirectory_files[file_name])
> #        render_text("Selected file : " +
> $subdirectory_files[file_name]);
>         filepath=$theme_root + "/" + $current_directory +
"/" +
> $clicked_link + "/" + $subdirectory_files[file_name];
>
>         File.open(filepath,"r") do |f|
>             f.each_line { |line|
>             $theme_files=$theme_files+line;
>             }
>             end
>
>       end
>     end
>
> This is the code snippet in .rhtml file
>
> <div id="filenames">
> <% if(!$subdirectory_files.empty?)%>
> <% $subdirectory_files.each do |file_name|%>
> <b><%= link_to_remote file_name, :update =>
"files",:url => { :action =>
> "get_file_data", :id => file_name }%></b><br>
> <%end%>
> <%end%>
> </div>
>
> Please anyone help in this regard

Which line throws that error?


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-----------
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were at every doorstep, and every path was its tributary.

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