public ShipIndex Update(ShipIndex a)
{
try
{
var item = ctx.ShipI.Find(a.Id);
if (item != null)
{
if (!object.Equals(item, a))
{
ctx.Entry(item).CurrentValues.SetValues(a);
ctx.SaveChanges();
}
else
{
ctx.SaveChanges();
}
return(ctx.ShipI.Find(a.Id));
}
else
{
return(null);
}
}
catch
{
throw;
}
}
public ShipIndex Insert(ShipIndex a)
{
try
{
a = ctx.ShipI.Add(a);
ctx.SaveChanges();
return(a);
}
catch
{
throw;
}
}
public bool Delete(ShipIndex a)
{
try
{
if (ctx.ShipI.Find(a.Id) != null)
{
ctx.ShipI.Remove(a);
return(ctx.SaveChanges() > 0);
}
else
{
return(false);
}
}
catch
{
throw;
}
}