Ruby on Rails

Frederick Cheung wrote:
> On Apr 28, 4:46�pm, William Haigh <li...@ruby-forum.com> wrote:
>> Hi all.
>>
>> Im using ROR and am trying to get some data from a database into a web
>> page then periodically update this information say every 5 seconds. Ive
>> got the content working statically and �have the div refreshing at
>> intervals, the only problem now is passing that new information from the
>> database into the variable.I guess I have to use AJAX for this. Anyone
>> got any ideas?
>
> Rails has a helper (periodically_call_remote) that will generate
> javascript that calls an action at the specified interval and updates
> the specified div with whatever is rendered by the action
>
> Fred

Would you be able to take a look at the code below. Ive done what you've
suggested and from the Rails console I can see that the data is been
queried at a regular interval and the div is refreshing but the new data
is not being inserted. FYI the value of @uptime is taken from an SNMP
query in the controller.

Thanks

[code]
<% content_for :subtitle do %>Log Collector Server Status<%end%> <p></p>
<% content_for :error do %>
<%=javascript_include_tag 'application'%>
<%=javascript_include_tag 'prototype'%>
<% if @collectorstatus == TRUE%>
<div class="success">Network Log Collector Is Online</div>
<div class="info">IP: 192.168.1.204</div>
<div class="info2">Uptime: <%=@uptime%></div>
<script src="http://ajax.googleapis.com/ajax/
libs/jquery/1.3.0/jquery.min.js"></script>
<script>
var auto_refresh = setInterval(
function()
{
$('.info2').fadeOut('fast').fadeIn("fast");
}, 1);
</script>

<%=periodically_call_remote(:url => 'status', :frequency => '5',
:update => '.info2')%>
<%else if @collectorstatus == FALSE%>
<div class="error">Network Log Collector Is Offline!</div>
<%else%>
<%end%>
<%end%>
<%end%>
<% content_for :content do %>
<% if @collectorstatus == TRUE%>
<div id="gauges2">
<% visualization "ProcessorGauge", "Gauge", :width =>500, :height
=>200, :redFrom => 90, :redTo=> 100, :yellowFrom=>80, :yellowTo=> 90,
:minorTicks=> 5, :html => {:class => "gauge"} do |chart| %>
<% chart.string "Name" %>
<% chart.number "Values" %>
<% chart.add_rows([
["Processor ",@processorusage],
["Mem Used ",@memoryint]
]) %>
<% end %>
<% end %>
</div>
<%end%>

[/code]
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