public string GetChangeList(int fileId, int?count, int?page)
{
if (!User.Identity.IsAuthenticated)
{
return("null");
}
int cnt, pg;
if (!count.HasValue || !page.HasValue)
{
cnt = 10;
pg = 1;
}
else
{
cnt = count.Value;
pg = page.Value;
}
List <Changes> result;
if (User.IsInRole("Admin"))
{
result = _context.GetAdminChangeList(fileId, cnt, pg);
}
else
{
result = _context.GetUserChangeList(fileId, User.Identity.Name, cnt, pg);
}
if (result.Count == 0)
{
return("null");
}
else
{
result.ForEach(res => res.File = null);
return(JsonConvert.SerializeObject(result, JsonSettings));
}
}