generatereport.rb

def generatereport
    if !params[:id].blank? && Report.find(params[:id])
         respond_to do |format|

	      format.pdf do
	        render :pdf => "file_name",
	        :orientation => 'Portrait' 
	      end
	       	format.html
	    end
	   else
	   	result['status'] &= false
	   	result['error_messages'].push('Report does not exist with id '+ params[:id].to_s )
	   end
  end

http://localhost:3000/reports/1/generatereport path is showing up plain html file, where as http://localhost:3000/reports/1/generatereport.pdf saying missing template.