Hi guys, I notice that sometimes when I load a chart using Google chart api
(generating the script code using php "echo") whit forefox (no problem with
iE), even if the data of the graph shoud be different, the image I can see
is the same of the last graph loaded. It seems that firefox use a sort of
cache momory for the graph.
I would like to solve this problem non operating in firefox options, but
generating every time a graph with a different name, or using variables with
a different name:
where can I insert (concatenating to an existing variable) a counter var, if
all my graphs are generated from this kind of code:
<script type="text/javascript">
var queryString = '';
var dataUrl = '';
function onLoadCallback()
{
if (dataUrl.length > 0)
{
var query = new google.visualization.Query(dataUrl);
query.setQuery(queryString);
query.send(handleQueryResponse);
}
else
{
var dataTable = new google.visualization.DataTable();
dataTable.addRows(7);
dataTable.addColumn('number');
dataTable.setValue(0,0,6);
etc etc
draw(dataTable);
}
}
function draw(dataTable)
{
var vis = new google.visualization.ImageChart(document.getElementById(
'grafico'));
var options = {etc etc'};
vis.draw(dataTable, options);
}
function handleQueryResponse(response)
{
if (response.isError())
{
alert('Error in query: ' + response.getMessage() + '
'+response.getDetailedMessage());
return;
}
draw(response.getDataTable());
}
google.load("visualization", "1", {packages:["imagechart"]});
google.setOnLoadCallback(onLoadCallback);
</script>
querystring? dataUrl?
I would like to use querystring1, querystring2, querystring3, etc etc (or
what other variable) every time I load a graph in my php session so to avoid
this problem.
Or can I solve in another way?
Thanks a lot
Andrea
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