How to generate CSV files in Rails

Your controller code :

require 'csv'

 def export_to_csv
   @customers=CustomerInformation.find(:all)
   report = StringIO.new
      CSV::Writer.generate(report, ',') do |title|
        title << ['Id','Job Title','First Name','Last Name']
        @customers.each do |c|
          title << [c.id,c.job_title,c.first_name,c.last_name]
        end
      end
     report.rewind
     send_data(report.read,:type=>'text/csv;charset=iso-8859-1;
     header=present',:filename=>'report.csv',
     :disposition =>'attachment', :encoding => 'utf8')
  end
Your view:

      <% form_tag({ :action =>  :export_to_csv })do -%> 
         <%= submit_tag "Export To CSV" -%>
      <% end -%>

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