ruby - Rails DateTime Comparison Bug -

i have ticket class has default rails column of updated_at while on ticket page making update polling database see if else has changed @ same time.

in view if works

<p>updated at: <%= @ticket.updated_at.to_time.strftime('%y-%m-%d %h:%m:%s') %></p> <p>current time: <%= time.now.strftime('%y-%m-%d %h:%m:%s') %></p>  <% current_time = time.now %>  <% if @ticket.updated_at > time.now %>   <p>ticket has been updated</p> <% else %>   <p>ticket has not been updated</p> <% end %> 

so here ajax request (library prototype new to, prefer jquery):

<script type="text/javascript">     function checkticketupdate() {          var url        = '/ticket/check_ticket_update';         var parameters = 'id=<%= @ticket.id %>&current_time=<%= current_time %>'         var container  = 'ticket_updated_container';         var myajax     = new ajax.updater(container, url, {method: 'get', parameters: parameters});          settimeout(checkticketupdate, 5000);     }      checkticketupdate(); </script> 

here check_ticket_update ticket controller:

def check_ticket_update   if params[:id]     @ticket = ticket.find_by_id(params[:id].to_i)   end   updated_at = @ticket.updated_at.to_time.strftime('%y-%m-%d %h:%m:%s')   current_time = date.parse(params[:current_time]).strftime('%y-%m-%d %h:%m:%s')    if updated_at > current_time      render :partial => 'ticket/ticket_updated'   end  end 

this falsely saying ticket has been updated when same test in view says hasn't can't see bug causing behaviour.

update

i updated partial spit out values of each of datetimes:

ticket has been updated updated at: 2013-08-07 16:35:38 # correct datetime database current time: 2013-08-07 00:00:00 # wrong... raw value of params[:current_time]: wed aug 07 20:26:29 +0100 2013 

date for, um, dates. dates have resolution of 1 day there no hours, minutes, ... example:

>> date.parse('2013-08-07 16:35:38').strftime('%y-%m-%d %h:%m:%s') => "2013-08-07 00:00:00" 

that means current_time string has zeros hours, minutes, , seconds. perhaps want use datetime instead:

>> datetime.parse('2013-08-07 16:35:38').strftime('%y-%m-%d %h:%m:%s') => "2013-08-07 16:35:38"