/// <summary>
/// Deal with change of master page zone admin type from editable or configurable to static.
/// </summary>
/// <param name="existingMasterPageZone">Existing master page zone.</param>
/// <param name="masterPageZone">Updated master page zone.</param>
/// <param name="unitOfWork">Unit of work.</param>
private void ChangeAdminTypeToStatic(MasterPageZone existingMasterPageZone, MasterPageZone masterPageZone, IUnitOfWork unitOfWork)
{
// Delete page zone elements that were required by editable or configurable master page zones, but no longer required for static master page zone
List <long> elementIds = _masterPageRepository.ListPageElementsByMasterPageZone(existingMasterPageZone.TenantId, existingMasterPageZone.MasterPageId, existingMasterPageZone.MasterPageZoneId, unitOfWork);
_pageRepository.DeletePageZoneElementsByMasterPageZone(existingMasterPageZone.TenantId, existingMasterPageZone.MasterPageId, existingMasterPageZone.MasterPageZoneId, unitOfWork);
HashSet <long> removedElements = new HashSet <long>();
foreach (long elementId in elementIds)
{
removedElements.Add(elementId);
}
if (removedElements.Count > 0)
{
DeleteElementsThatAreNoLongerInUse(existingMasterPageZone.TenantId, removedElements, unitOfWork);
}
// Delete page zones that were required by editable or configurable master page zones, but no longer required for static master page zone
_pageRepository.DeletePageZonesByMasterPageZone(existingMasterPageZone.TenantId, existingMasterPageZone.MasterPageId, existingMasterPageZone.MasterPageZoneId, unitOfWork);
}