public void UpOrDown(UpOrDown Model, string UserID)
{
using (var _c = db)
{
var _Category = GetByID(Model.CategoryID, _c);
Can(_Category.SiteID, UserID, _c);
var _P = _c.Categories.Where(m => m.CategoryParentID == _Category.CategoryParentID && m.SiteID == _Category.SiteID);
if (Model.Up)
{
if (_P.Select(m => m.Priority).Min() < _Category.Priority)
{
var _Next = _P.Where(m => m.Priority < _Category.Priority).OrderBy(m => m.Priority).ToList().Last();
_Next.Priority++;
_Category.Priority--;
}
}
else
{
if (_P.Select(m => m.Priority).Max() > _Category.Priority)
{
var _Next = _P.Where(m => m.Priority > _Category.Priority).OrderBy(m => m.Priority).ToList().First();
_Next.Priority--;
_Category.Priority++;
}
}
_c.SaveChanges();
}
}
public IHttpActionResult PostUpOrDown(UpOrDown Model)
{
_CategoryService.UpOrDown(Model, User.Identity.GetUserId());
return Ok();
}