Added checks in Product::deleteAction()

application/OrderProduct/OrderProductModel.php

@@ -100,7 +100,25 @@ class OrderProductModel
         }
         return null;
     }
+    
+    public static function count($filter) {
+      $db = FronkDB::singleton();
 
+      $where = self::getSqlFilter($filter);
+      $sql = "SELECT COUNT(*) as cnt FROM OrderProduct
+              WHERE $where
+        ";
+
+      mfLoghandler::singleton()->debug($sql);
+
+      $res = $db->query($sql);
+      if($db->num_rows($res)) {
+        $data = $db->fetch_object($res);
+        return $data->cnt;
+      }
+      return 0;
+    }
+    
     public static function search($filter)
     {
         $items = [];

application/Preorder/PreorderModel.php

@@ -544,6 +544,20 @@ class PreorderModel {
       }
     }
     
+    if(array_key_exists("product_id", $filter)) {
+      $product_id = $filter['product_id'];
+      if(is_numeric($product_id)) {
+        $where .= " AND tt_preorder.product_id=$product_id";
+      }
+    }
+    
+    if(array_key_exists("setup_product_id", $filter)) {
+      $setup_product_id = $filter['setup_product_id'];
+      if(is_numeric($setup_product_id)) {
+        $where .= " AND tt_preorder.setup_product_id=$setup_product_id";
+      }
+    }
+    
     if(array_key_exists("address_created", $filter)) {
       $address_created = $filter['address_created'];
       if($address_created === true) {
@@ -610,6 +624,8 @@ class PreorderModel {
       }
     }
     
+    
+    
     if(array_key_exists("extref", $filter)) {
       $extref = FronkDB::singleton()->escape($filter['extref']);
       if($extref) {

application/Product/ProductController.php

@@ -312,8 +312,39 @@ class ProductController extends mfBaseController {
       $this->redirect("Product");
     }
     
-    // check if Product is unused
+    // check if product is in use
+    if(OrderProductModel::count(["product_id" => $product->id])) {
+      $this->layout()->setFlash("Produkt kann nicht gelöscht werden, da es in Verwendung ist!", "error");
+      $this->redirect("Product");
+    }
+    
+    if(ContractModel::count(["product_id" => $product->id])) {
+      $this->layout()->setFlash("Produkt kann nicht gelöscht werden, da es in Verwendung ist!", "error");
+      $this->redirect("Product");
+    }
+    
+    if(ContractqueueModel::count(["product_id" => $product->id])) {
+      $this->layout()->setFlash("Produkt kann nicht gelöscht werden, da es in Verwendung ist!", "error");
+      $this->redirect("Product");
+    }
+    
+    if(PreorderModel::count(["product_id" => $product->id]) || PreorderModel::count(["setup_product_id" => $product->id])) {
+      $this->layout()->setFlash("Produkt kann nicht gelöscht werden, da es in Verwendung ist!", "error");
+      $this->redirect("Product");
+    }
+    
+    // delete attributes
+    foreach($product->attributes as $attrib) {
+      $attrib->delete();
+    }
+    // delete networks
+    foreach(ProductNetworkModel::search(['product_id' => $product->id]) as $pn) {
+      $pn->delete();
+    }
+    
+    // delete product
     $product->delete();
+    $this->layout()->setFlash("Produkt erfolgreich gelöscht", "success");
     $this->redirect("Product");
   }