SQL expression rewrite, Pagination, some frontend stuff

Core/Driver/SQL/Condition/CondNot.class.php

@@ -2,15 +2,21 @@
 
 namespace Core\Driver\SQL\Condition;
 
+use Core\Driver\SQL\SQL;
+
 class CondNot extends Condition {
 
-  private $expression; // string or condition
+  private mixed $expression; // string or condition
 
-  public function __construct($expression) {
+  public function __construct(mixed $expression) {
     $this->expression = $expression;
   }
 
-  public function getExpression() {
-    return $this->expression;
+  public function getExpression(SQL $sql, array &$params): string {
+    if (is_string($this->expression)) {
+      return "NOT " . $sql->columnName($this->expression);
+    } else {
+      return "NOT " . $sql->addValue($this->expression, $params);
+    }
   }
 }