+function check_bank_transfer($trans_no, $from_account, $to_account, $date_,
+ $amount, $target_amount=0)
+{
+ $dbResult = get_bank_trans(ST_BANKTRANSFER, $trans_no);
+
+ $old_from = db_fetch($dbResult);
+ $old_to = db_fetch($dbResult);
+ if ($old_to['amount'] < 0.0) {
+ $tmp = $old_from;
+ $old_from = $old_to;
+ $old_to = $tmp;
+ }
+ // There are four accounts to consider:
+ // 1) The original from account that is being voided. This results in funds being put back which is always fine.
+ // 2) The original to account that is being voided. This results in funds being removed which may result in a
+ // negative balance in the account at some time and therefore needs to be checked.
+ $problemTransaction = check_bank_account_history(-$old_to['amount'], $old_to['bank_act'], sql2date($old_from['trans_date']));
+ if ($problemTransaction) {
+ // If the destination account is the same as that being edited, it may be that this edit will resolve the
+ // problem of voiding.
+ if ($to_account == $old_to['bank_act'] && sql_date_comp($problemTransaction['trans_date'], date2sql($date_)) > 0) {
+ $problemTransaction['amount'] += $amount;
+ if ($problemTransaction['amount'] >= 0) {
+ $problemTransaction = null;
+ }
+ }
+ if ($problemTransaction != null) {
+ $problemTransaction['account'] = $old_to['bank_act'];
+ $problemTransaction['bank_account_name'] = $old_to['bank_account_name'];
+ return $problemTransaction;
+ }
+ }
+
+ // 3) The edited from account, that is having funds removed which may result in a
+ // negative balance in the account at some time and therefore needs to be checked.
+ $balance_offset = 0;
+ if ($from_account == $old_from['bank_act'] && sql_date_comp(date2sql($date_), $old_from['trans_date']) >= 0) {
+ // If the edited from_account is the same as the original transaction, and the new date is later than the old date
+ // then add the amount from the original from transaction when checking the history to simulate the void that would
+ // take effect from that date.
+ $balance_offset = -$old_from['amount'];
+ }
+ $problemTransaction = check_bank_account_history(-$amount, $from_account, $date_, null, $balance_offset);
+ if ($problemTransaction != null) {
+ $problemTransaction['account'] = $old_from['bank_act'];
+ $problemTransaction['bank_account_name'] = $old_from['bank_account_name'];
+ return $problemTransaction;
+ }
+ // 4) The edited to account, that is having funds added which is always ok.
+
+ return $problemTransaction;
+}
+
+function update_bank_transfer(
+ $trans_no, $from_account, $to_account, $date_,
+ $amount, $ref, $memo_, $charge=0, $target_amount=0)
+{
+ begin_transaction();
+ delete_comments(ST_BANKTRANSFER, $trans_no);
+ void_transaction(ST_BANKTRANSFER, $trans_no, $date_, _("Document reentered."));
+ void_gl_trans(ST_BANKTRANSFER, $trans_no, true);
+ $new_trans_no = add_bank_transfer(
+ $from_account, $to_account, $date_, $amount,
+ $ref, $memo_, $charge, $target_amount
+ );
+ commit_transaction();
+ return $new_trans_no;
+}
+