/// <summary>
/// 追加列名
/// </summary>
/// <param name="alias">所在表名</param>
/// <param name="member">成员元数据</param>
/// <param name="reflectedType">访问字段或者属性的实际类型</param>
/// <returns></returns>
public ISqlBuilder AppendMember(string alias, MemberInfo member, Type reflectedType)
{
ColumnAttribute column = TypeUtils.GetColumnAttribute(member, reflectedType ?? (member.ReflectedType ?? member.DeclaringType));
string memberName = column != null && !string.IsNullOrEmpty(column.Name) ? column.Name : member.Name;
return(this.AppendMember(alias, memberName));
}
/// <summary>
/// 获取字段或属性成员对应的数据字段名称
/// </summary>
/// <param name="member">字段或属性成员</param>
/// <param name="reflectedType">调用字段或属性成员的实际类型</param>
/// <returns></returns>
public static string GetFieldName(MemberInfo member, Type reflectedType)
{
if (member == null)
{
return(null);
}
ColumnAttribute column = TypeUtils.GetColumnAttribute(member, reflectedType);
return(column != null && !string.IsNullOrEmpty(column.Name) ? column.Name : member.Name);
}
/// <summary>
/// 生成 value 对应的 SQL 片断
/// </summary>
/// <param name="value">SQL值</param>
/// <param name="token">解析SQL命令上下文</param>
/// <param name="m">value 对应的成员</param>
/// <returns></returns>
public string GetSqlValue(object value, ITranslateContext token, MemberVisitedStack.VisitedMember m)
{
ColumnAttribute column = m != null?TypeUtils.GetColumnAttribute(m.Member, m.ReflectedType) : null;
return(this.GetSqlValue(value, token, column));
}
