preserve NULLs in cleaning functions

diff --git a/classes/database/Postgres.php b/classes/database/Postgres.php
index 7319ef8ded725e42ca127c7af3fce2e7b71d4276..cd5c4d44c0a5c9c18f0dda0302881ff703ad3dec 100755 (executable)
--- a/classes/database/Postgres.php
+++ b/classes/database/Postgres.php
@@ -4,7 +4,7 @@
  * A class that implements the DB interface for Postgres
  * Note: This class uses ADODB and returns RecordSets.
  *
- * $Id: Postgres.php,v 1.75 2003/04/18 08:34:41 chriskl Exp $
+ * $Id: Postgres.php,v 1.76 2003/04/20 09:53:52 chriskl Exp $
  */
 
 // @@@ THOUGHT: What about inherits? ie. use of ONLY???
@@ -140,6 +140,7 @@ class Postgres extends BaseDB {
         * @return The cleaned string
         */
        function clean(&$str) {
+               if ($str === null) return null;
                if (function_exists('pg_escape_string'))
                        $str = pg_escape_string($str);
                else
@@ -153,6 +154,7 @@ class Postgres extends BaseDB {
         * @return The cleaned string
         */
        function fieldClean(&$str) {
+               if ($str === null) return null;
                $str = str_replace('"', '""', $str);
                return $str;
        }
@@ -164,6 +166,7 @@ class Postgres extends BaseDB {
         */
        function arrayClean(&$arr) {
                foreach ($arr as $k => $v) {
+                       if ($v === null) continue;
                        if (function_exists('pg_escape_string'))
                                $arr[$k] = pg_escape_string($v);
                        else
@@ -179,6 +182,7 @@ class Postgres extends BaseDB {
         */
        function fieldArrayClean(&$arr) {
                foreach ($arr as $k => $v) {
+                       if ($v === null) continue;
                        $arr[$k] = str_replace('"', '""', $v);
                }
                return $arr;