+ my $sum = 0;
+
+ foreach my $part_export ( @part_export ) {
+
+ next if $part_export->option('ignore_accounting');
+
+ warn "$mes connecting to sqlradius database\n"
+ if $DEBUG;
+
+ my $dbh = DBI->connect( map { $part_export->option($_) }
+ qw(datasrc username password) )
+ or die "can't connect to sqlradius database: ". $DBI::errstr;
+
+ warn "$mes connected to sqlradius database\n"
+ if $DEBUG;
+
+ #select a unix time conversion function based on database type
+ my $str2time = str2time_sql( $dbh->{Driver}->{Name} );
+
+ my $username = $part_export->export_username($svc_x);
+
+ warn "$mes SUMing $attrib sessions\n"
+ if $DEBUG;
+
+ my $sth = $dbh->prepare("SELECT SUM($attrib)
+ FROM radacct
+ WHERE UserName = ?
+ AND $str2time AcctStopTime ) >= ?
+ AND $str2time AcctStopTime ) < ?
+ AND AcctStopTime IS NOT NULL"
+ ) or die $dbh->errstr;
+ $sth->execute($username, $start, $end) or die $sth->errstr;
+
+ my $row = $sth->fetchrow_arrayref;
+ $sum += $row->[0] if defined($row->[0]);
+
+ warn "$mes done SUMing sessions\n"
+ if $DEBUG;
+
+ }
+
+ $sum;
+
+}
+
+=item get_session_history TIMESTAMP_START TIMESTAMP_END
+
+See L<FS::svc_acct/get_session_history>. Equivalent to
+$cust_svc->svc_x->get_session_history, but more efficient. Meaningless for
+records where B<svcdb> is not "svc_acct".
+
+=cut
+
+sub get_session_history {
+ my($self, $start, $end, $attrib) = @_;
+
+ #$attrib ???
+
+ my @part_export = $self->part_svc->part_export_usage;
+ die "no accounting-capable exports are enabled for ". $self->part_svc->svc.
+ " service definition"
+ unless @part_export;
+ #or return undef;
+
+ my @sessions = ();
+
+ foreach my $part_export ( @part_export ) {
+ push @sessions,
+ @{ $part_export->usage_sessions( $start, $end, $self->svc_x ) };
+ }
+
+ @sessions;
+
+}
+
+=back