domain: client
language: javascript
class Item class
Read the rec_count property to get the number of records ownered by
the item’s dataset.
If the module declares an on_filter_record event handler and the Filtered attribute is set, this property calculates the number of records that satisfy this filter, otherwise the record_count method is used to calculate the number of records.
function edit_invoice(invoice_id) {
var invoices = task.invoices.copy();
invoices.open({ where: {id: invoice_id} }, function() {
if (invoices.rec_count) {
invoices.edit_record();
}
else {
invoices.alert_error('Invoices: record not found.');
}
});
}