public virtual async Task <NavBarItemModel> PrepareNavBarItemModelAsync(TblNavBarItems item)
{
NavBarItemModel result;
if (item == null)
{
result = new NavBarItemModel();
}
else
{
result = item.Adapt <NavBarItemModel>();
await item.LoadAllLocalizedStringsToModelAsync(result);
}
return(result);
}
public virtual async Task UpdateAsync(TblNavBarItems record)
{
var allItems = (await GetAsEnumerableAsync()).ToList();
var oldRecord = allItems.FirstOrDefault(p => p.Id == record.Id);
allItems.RemoveWhere(p => p.Id == record.Id);
allItems.Add(record);
if (DetectLoop(allItems, record, null))
{
throw new Exception("Self referencing loop detected");
}
_dbContext.NavBarItems.AddOrUpdate(record);
await _dbContext.SaveChangesAsync();
QueryCacheManager.ExpireTag(CacheTags.NavbarItem);
_eventPublisher.EntityUpdated(record, oldRecord);
}
protected virtual bool DetectLoop(List <TblNavBarItems> allItems, TblNavBarItems item, HashSet <TblNavBarItems> visited)
{
visited = visited ?? new HashSet <TblNavBarItems>();
var parentItem = allItems.FirstOrDefault(p => p.Id == item.ParentItemId);
if (parentItem != null)
{
if (!visited.Contains(parentItem))
{
visited.Add(parentItem);
return(DetectLoop(allItems, parentItem, visited));
}
else
{
return(true);
}
}
return(false);
}
public virtual async Task <int> AddAsync(TblNavBarItems record)
{
if (record.Index == -1)
{
var maxIdx = _dbContext.NavBarItems.Max(p => (int?)p.Index);
record.Index = (maxIdx ?? 0) + 1;
}
else
{
await _dbContext.NavBarItems.Where(p => p.Index >= record.Index).UpdateAsync(p => new TblNavBarItems()
{
Index = p.Index + 1
});
}
_dbContext.NavBarItems.Add(record);
await _dbContext.SaveChangesAsync();
QueryCacheManager.ExpireTag(CacheTags.NavbarItem);
_eventPublisher.EntityInserted(record);
return(record.Id);
}
