gistfile1.builder

def create
    @suggestion = Suggestion.new(params[:suggestion])
    
    # create slug - TODO move somewhere
    @suggestion.slug = params[:suggestion][:title].parameterize
    # adjust slug if not unique
    i=3
    while [email protected]? && @suggestion.errors["slug"].include?("is already taken")
      if @suggestion.slug[/-\d+$/].nil? # does the slug contain "-123" at the end?
        @suggestion.slug<<"-2" # if not, assuming it's first duplicate and add "-2"
      else
        @suggestion.slug.gsub!(/-\d+$/,"-"+i.to_s) # replace "-2" with "-3" etc..
        i+=1
      end
    end

    respond_to do |format|
      if @suggestion.save
        format.html { redirect_to(@suggestion, :notice => 'Document was successfully created.') }
        format.xml  { render :xml => @suggestion, :status => :created, :location => @suggestion }
      else
        format.html { render :action => "new" }
        format.xml  { render :xml => @suggestion.errors, :status => :unprocessable_entity }
      end
    end
  end