/// <summary>
/// Creates any new elements that are required.
/// </summary>
/// <param name="masterPageZone">The updated master page zone.</param>
/// <param name="unitOfWork">Unit of work.</param>
private void CreateNewElements(MasterPageZone masterPageZone, IUnitOfWork unitOfWork)
{
foreach (MasterPageZoneElement masterPageZoneElement in masterPageZone.MasterPageZoneElements)
{
if (masterPageZoneElement.ElementId == 0)
{
IElementSettings element = _elementService.New(masterPageZone.TenantId, masterPageZoneElement.Element.ElementTypeId);
element.Name = masterPageZoneElement.Element.Name.Trim();
long elementId = _elementService.Create(element, unitOfWork);
masterPageZoneElement.ElementId = elementId;
masterPageZoneElement.Element.ElementId = elementId;
}
}
}
/// <summary>
/// Updates a configurable page zone. Creates new elements and removes old elements. Re-orders existing elements.
/// </summary>
/// <param name="tenantId">Website that page belongs to.</param>
/// <param name="pageId">Page identifier.</param>
/// <param name="pageZoneId">Page zone identifier.</param>
/// <param name="pageZoneElements">New page zone contents.</param>
/// <param name="unitOfWork">Unit of work.</param>
public void UpdateZone(long tenantId, long pageId, long pageZoneId, List <PageZoneElementInfo> pageZoneElements, IUnitOfWork unitOfWork = null)
{
// If we don't have a unit of work in place, create one now so that we can rollback all changes in case of failure
IUnitOfWork localUnitOfWork = unitOfWork == null?_unitOfWorkFactory.CreateUnitOfWork() : null;
// Do the page update
try
{
// Get page, master page and page zone that we administering
Page page = Read(tenantId, pageId, unitOfWork ?? localUnitOfWork);
MasterPage masterPage = _masterPageService.Read(tenantId, page.MasterPageId, unitOfWork ?? localUnitOfWork);
PageZone pageZone = page.PageZones.Where(z => z.PageZoneId == pageZoneId).FirstOrDefault();
// Perform validation
_pageValidator.ValidateUpdateZone(masterPage, page, pageZoneId, pageZoneElements);
// Construct new list of page zone elements
List <PageZoneElement> newPageZoneElements = new List <PageZoneElement>();
foreach (PageZoneElementInfo info in pageZoneElements)
{
// Create new page zone element?
if (info.PageZoneElementId == 0)
{
IElementSettings element = _elementService.New(tenantId, info.ElementTypeId);
element.Name = info.Name;
long elementId = _elementService.Create(element, unitOfWork ?? localUnitOfWork);
newPageZoneElements.Add(new PageZoneElement
{
TenantId = tenantId,
PageId = pageId,
PageZoneId = pageZoneId,
PageZoneElementId = 0,
SortOrder = info.SortOrder,
ElementTypeId = info.ElementTypeId,
ElementId = elementId,
Element = element
});
}
// Update existing page zone element?
if (info.PageZoneElementId != 0)
{
IElementSettings element = _elementService.New(tenantId, info.ElementTypeId);
element.Name = info.Name;
PageZoneElement pageZoneElement = pageZone.PageZoneElements.Where(e => e.PageZoneElementId == info.PageZoneElementId).First();
pageZoneElement.SortOrder = info.SortOrder;
pageZoneElement.Element = element;
newPageZoneElements.Add(pageZoneElement);
}
}
// Do the page zone element update
_pageRepository.UpdatePageZoneElements(tenantId, pageId, pageZoneId, newPageZoneElements, unitOfWork ?? localUnitOfWork);
// Get elements that might be removed
List <ElementKeyValue> elementsToDelete = new List <ElementKeyValue>();
foreach (PageZoneElement pageZoneElement in pageZone.PageZoneElements)
{
PageZoneElementInfo pageZoneElementInfo = pageZoneElements.Where(e => e.PageZoneElementId == pageZoneElement.PageZoneElementId).FirstOrDefault();
if (pageZoneElementInfo == null)
{
elementsToDelete.Add(new ElementKeyValue {
ElementId = pageZoneElement.ElementId, ElementTypeId = pageZoneElement.ElementTypeId
});
}
}
// Delete elements if no longer in use
foreach (ElementKeyValue elementKeyValue in elementsToDelete)
{
if (!ElementInUse(tenantId, elementKeyValue.ElementId, unitOfWork ?? localUnitOfWork))
{
_elementService.Delete(tenantId, elementKeyValue.ElementTypeId, elementKeyValue.ElementId, unitOfWork ?? localUnitOfWork);
}
}
// Commit work if local unit of work in place
if (localUnitOfWork != null)
{
localUnitOfWork.Commit();
}
}
catch (ValidationErrorException)
{
if (localUnitOfWork != null)
{
localUnitOfWork.Rollback();
}
throw;
}
catch (Exception ex)
{
if (localUnitOfWork != null)
{
localUnitOfWork.Rollback();
}
throw new ValidationErrorException(new ValidationError(null, ApplicationResource.UnexpectedErrorMessage), ex);
}
}