Filtering by current date

Question

HI
I am attempting to filter data based on a "date" column
compared to the current date, depending on certain criteria set by
the client (example they select "please show all data within last
day", or perhaps "Show all data previous 7 days").The current date
has to be set \ updated automaticly and will not be entered by the
client.
so, what i need is a filter than can compare data from the
xml form against the current time.
I have been able to set this up using php coding, but dont
know where to start with Spry.
Any suggests would be greatly appreciated.
Mark

Answer 1

i used xpath to filter my lines by month / year, my date
format is dd.mm.yyyy and an xpath would look like
/data/line[substring(datum,4,2) = "07" and substring(datum,7,4) =
"2006"], but this is not really what you want if using ranges (last
7 days)...
sorting could be done with dsPhotos.setColumnType("datum",
"date");
after sorting (you don't have to sort by date) you could use
a filter function which compares the date with your given range:
var myFilterFunc = function(dataSet, row, rowNumber)
if (PUT YOUR RANGE CONDITION HERE)
return row; // Return the row to keep it in the data set.
return null; // Return null to remove the row from the data
set.
dsPhotos.filter(myFilterFunc); // Filter the rows in the data
set.