public VA_Handle GetNewSign(string VID, string ContentID)
{
VA_Handle res = new VA_Handle();
//查询条件
var predicate = WhereExtension.True <VA_Handle>();//初始化where表达式
if (!String.IsNullOrEmpty(VID))
{
predicate = predicate.And(p => p.VID.Equals(VID));
}
if (!String.IsNullOrEmpty(ContentID))
{
predicate = predicate.And(p => p.ContentID.Equals(ContentID));
}
var result = DbSet.Where(predicate).OrderByDescending(o => o.CreateDate).ToList();
if (result.Count > 0)
{
res = result.First();
}
return(res);
}
public virtual void Update(VA_Handle obj)
{
DbSet.Update(obj);
}
public virtual void Add(VA_Handle obj)
{
DbSet.Add(obj);
}