gistfile1.rb

require 'ftools'

FILE_DIR="files"

get "/upload_file/:id" do
    @parent=params[:id]
    erb :upload_file
end

post "/upload_file/:parent" do
    parent_id=params[:parent].to_i
    parent=Node.get(parent_id)

    file=params["myfile"]
    
    # name got from form data
    f_name=file[:filename]
    
    # tmpfile where the file is stored
    f_tmp=file[:tempfile]
    
    # this is the directory where I am going to move the file
    f_dir=File.join(FILE_DIR, parent_id.to_s)
    
    # directory+filename
    filename=File.join(f_dir, f_name)
    
    # actual directory ceration and file movement
    Dir.mkdir(f_dir) if !File.exists?(f_dir)
    File.move(f_tmp.path, filename)
    f_tmp.unlink
    
    node=Node.new
    node.name=params[:name]
    node.type="file"
    node.file=filename
    node.node_id=parent_id
    node.save
    
    redirect "/show_dir/#{parent_id}"
end


get "/files/*" do
    f_path=params["splat"][0]
    f_name=f_path.split("/")[-1]
    send_file("files/#{f_path}")
    #params.inspect
end


__END__


@@ upload_file
<form enctype="multipart/form-data"
    action="/upload_file/<%= @parent %>" method="post">
    Name: <input type="text" name="name" /> <br />
    File: <input name="myfile" type="file" /><br/>
    <input type="submit" value="Upload" />
</form>