SQL CaseWhen/Sum + ContactRequest API fix

core/Driver/SQL/Expression/CaseWhen.class.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace Driver\SQL\Expression;
+
+use Driver\SQL\Condition\Condition;
+
+class CaseWhen extends Expression {
+
+  private Condition $condition;
+  private $trueCase;
+  private $falseCase;
+
+  public function __construct(Condition $condition, $trueCase, $falseCase) {
+    $this->condition = $condition;
+    $this->trueCase = $trueCase;
+    $this->falseCase = $falseCase;
+  }
+
+  public function getCondition(): Condition { return $this->condition; }
+  public function getTrueCase() { return $this->trueCase; }
+  public function getFalseCase() { return $this->falseCase; }
+
+}