fix filtered Attributes - load nothing if empty array or only invalid ids

entity/AttributeRelation_entity/recordcontainers/jdito/contentProcess.js

@@ -72,18 +72,25 @@ else if (showEmpty || objectRowId)
         
         attributeSql.andIfSet("AB_ATTRIBUTE.AB_ATTRIBUTEID", possibleAttributes, SqlBuilder.IN());
     }
-    if (vars.exists("$param.FilteredAttributeIds_param") && vars.getString("$param.FilteredAttributeIds_param"))
+    if (vars.get("$param.FilteredAttributeIds_param"))
     {
         let filteredIds = JSON.parse(vars.getString("$param.FilteredAttributeIds_param"));
 
         let filteredIdChildren = AttributeUtil.getAllChildren(filteredIds);
         
-        let filteredCondition = newWhereIfSet("AB_ATTRIBUTE.AB_ATTRIBUTEID", filteredIdChildren, SqlBuilder.IN())
-                                    .and("AB_ATTRIBUTE.ATTRIBUTE_TYPE", $AttributeTypes.COMBOVALUE, "# != ?");
-    
+        let filteredCondition = newWhere();
+        
+        if (filteredIdChildren.length > 0)
+        {
+            filteredCondition.and("AB_ATTRIBUTE.AB_ATTRIBUTEID", filteredIdChildren, SqlBuilder.IN())
+                             .and("AB_ATTRIBUTE.ATTRIBUTE_TYPE", $AttributeTypes.COMBOVALUE, "# != ?");
+        }
+        
         // return nothing if filteredAttributeIds is an empty array. (--> and 1=2)
-        if (filteredIds && filteredIds.length > 0)
+        if (filteredCondition.hasCondition())
             attributeSql.and(filteredCondition);
+        else
+            attributeSql.and("1=2");
     }
 }