Merge branch 'sales_2002515_districtdef_stackoverflow' into '2021.2'

Gebietsdefinition - Aktion Übergeordnetes Gebiet setzen: ein untergeordnetes...

See merge request xrm/basic!1589

entity/DistrictChangeField_entity/entityfields/parentdistricts/children/excludeddistrictids_param/valueProcess.js

 import("system.result");
 import("system.vars");
+import("District_lib");
 
-result.string(vars.get("$param.Ids_param"));
+let roots = JSON.parse(vars.get("$param.Ids_param"));
+result.string(JSON.stringify(DistrictUtils.getRecursiveChilds(roots)));

entity/District_entity/entityfields/parentdistricts/children/excludeddistrictids_param/valueProcess.js

-import("system.vars");
 import("system.result");
+import("system.vars");
+import("District_lib");
 
-var uid = vars.get("$field.DISTRICTID");
-var res = JSON.stringify([uid]);
-result.string(res);
\ No newline at end of file
+let excluded = DistrictUtils.getRecursiveChilds([vars.get("$field.DISTRICTID")]);
+result.string(JSON.stringify(excluded));

process/District_lib/process.js

@@ -469,6 +469,45 @@ DistrictUtils.setDistrictContactStatus = function (pArrIds, pStatus)
     db.updates(updateArray);
 }
 
+/**
+ * Returns all recursive subitems (including itself) for all specified roots
+ * 
+ * @param {String[]} pRoots the root disrict ids
+ * 
+ * @returns all children (recursive)
+ */
+DistrictUtils.getRecursiveChilds = function(pRoots)
+{
+    let data = newSelect(["DISTRICT.DISTRICTID", "DISTRICT.PARENTDISTRICT_DISTRICTID"]).from("DISTRICT").table();
+    let districtParentChildrenMap = new Map();
+    data.forEach(function([pIdentifier, pParent])
+    {
+        if(!pParent)
+        {
+            return;
+        }
+        if(!districtParentChildrenMap.has(pParent))
+        {
+            districtParentChildrenMap.set(pParent, []);
+        }
+        districtParentChildrenMap.get(pParent).push(pIdentifier);
+    });
+
+    // _traverseDistrictRootsRecursive is recursively called for every branch of subdistricts
+    let excludedDistrictIdentifierSet = new Set(pRoots);
+    function _traverseDistrictRootsRecursive(pRootsIterator)
+    {
+        pRootsIterator.forEach(function(pItem)
+        {
+            let childrenIterator = districtParentChildrenMap.get(pItem) || [];
+            childrenIterator.forEach(excludedDistrictIdentifierSet.add.bind(excludedDistrictIdentifierSet));
+            _traverseDistrictRootsRecursive(childrenIterator);
+        });
+    }
+    _traverseDistrictRootsRecursive(pRoots);
+    return Array.from(excludedDistrictIdentifierSet);
+}
+
 /*
  * See DistrictChangeField_entity
  */