public override ODataExpression VisitConstant(ODataConstantExpression expr)
{
if(expr.Value == null)
{
sqlBuilder.Append("NULL");
return expr;
}
Type type = expr.Value.GetType();
if (type == typeof(bool))
{
this.sqlBuilder.Append((bool)expr.Value ? 1 : 0);
}
else if (type == typeof(long) || type == typeof(int) || type == typeof(short) || type == typeof(sbyte)
|| type == typeof(ulong) || type == typeof(uint) || type == typeof(ushort) || type == typeof(double)
|| type == typeof(float) || type == typeof(decimal))
{
this.sqlBuilder.Append(expr.Value);
}
else
{
this.sqlBuilder.AppendFormat("'{0}'", expr.Value.ToString().Replace("'", "''"));
}
return expr;
}
public virtual ODataExpression VisitConstant(ODataConstantExpression expr)
{
return this.Visit(expr);
}