- $sql = "SELECT
- SUM(IF(type IN(".ST_SUPPINVOICE.",".ST_BANKDEPOSIT."), (ov_amount + ov_gst + ov_discount), 0)) AS charges,
- SUM(IF(type NOT IN(".ST_SUPPINVOICE.",".ST_BANKDEPOSIT."), (ov_amount + ov_gst + ov_discount), 0)) AS credits,
- SUM(IF(type NOT IN(".ST_SUPPINVOICE.",".ST_BANKDEPOSIT."),alloc * -1, alloc)) AS Allocated,
- SUM(IF(type IN(".ST_SUPPINVOICE.",".ST_BANKDEPOSIT."), (ov_amount + ov_gst + ov_discount - alloc),
- (ov_amount + ov_gst + ov_discount + alloc))) AS OutStanding
- FROM ".TB_PREF."supp_trans
- WHERE tran_date < '$to'
- AND supplier_id = '$supplier_id' GROUP BY supplier_id";
+ $sql .= "SUM(IF(t.type = ".ST_SUPPINVOICE.", 1, -1) *
+ (abs(t.ov_amount + t.ov_gst + t.ov_discount) - abs(t.alloc))) AS OutStanding
+ FROM ".TB_PREF."supp_trans t
+ WHERE t.supplier_id = ".db_escape($supplier_id);
+ if ($to)
+ $sql .= " AND t.tran_date < '$to'";
+ $sql .= " GROUP BY supplier_id";