add DB escape methods for lists

git-svn-id: https://silmor.de/svn/softmagic/pack/trunk@711 6e3c4bff-ac9f-4ac1-96c5-d2ea494d3e33

diff --git a/phpbase/db.php b/phpbase/db.php
index 628ca7b..879bb55 100644 (file)
--- a/phpbase/db.php
+++ b/phpbase/db.php
@@ -308,6 +308,36 @@ abstract class DbEngine
                return $r;
        }
        
+       /**escapes a list of strings; uses escapeInt for each element; automatically adds parentheses*/
+       public function escapeStringList(array $il)
+       {
+               if(count($il)==0)return "(NULL)";
+               $r="(";
+               $b=false;
+               foreach($il as $i){
+                       if($b)$r.=",";
+                       else $b=true;
+                       $r.=$this->escapeString($i);
+               }
+               $r.=")";
+               return $r;
+       }
+
+       /**escapes a list of values for a specific column; uses escapeInt for each element; automatically adds parentheses*/
+       public function escapeListColumn(array $il,$table,$col)
+       {
+               if(count($il)==0)return "(NULL)";
+               $r="(";
+               $b=false;
+               foreach($il as $i){
+                       if($b)$r.=",";
+                       else $b=true;
+                       $r.=$this->escapeColumn($table,$col,$i);
+               }
+               $r.=")";
+               return $r;
+       }
+
        /**escapes strings; the default uses addslashes and encloses the value in ''; it is recommended to overwrite this with the proper escaping procedure for the target DB (false and null are translated to NULL)*/
        public function escapeString($s)
        {