/// <summary>
/// 获取数据库成员信息
/// </summary>
/// <param name="member">成员信息</param>
/// <returns>数据库成员信息</returns>
internal static MemberAttribute Get(MemberIndexInfo member)
{
MemberAttribute value = member.GetAttribute <MemberAttribute>(true);
if (value == null || value.DataType == null)
{
if (member.MemberSystemType.IsEnum)
{
if (value == null)
{
value = new MemberAttribute();
}
value.DataType = System.Enum.GetUnderlyingType(member.MemberSystemType);
}
else
{
MemberAttribute sqlMember = TypeAttribute.GetAttribute <MemberAttribute>(member.MemberSystemType, false);
if (sqlMember != null && sqlMember.DataType != null)
{
if (value == null)
{
value = new MemberAttribute();
}
value.DataType = sqlMember.DataType;
if (sqlMember.DataType.nullableType() != null)
{
value.IsNull = true;
}
}
}
}
else if (member.MemberSystemType.IsEnum)
{
Type enumType = System.Enum.GetUnderlyingType(member.MemberSystemType);
if (enumType != value.DataType)
{
value.EnumType = enumType;
}
}
if (value == null)
{
Type nullableType = member.MemberSystemType.nullableType();
if (nullableType == null)
{
if (TypeAttribute.GetAttribute <ColumnAttribute>(member.MemberSystemType, false) == null)
{
Type dataType = member.MemberSystemType.toDataType();
if (dataType != member.MemberSystemType)
{
value = new MemberAttribute();
value.DataType = dataType;
}
}
}
else
{
value = new MemberAttribute();
value.IsNull = true;
Type dataType = nullableType.toDataType();
if (dataType != nullableType)
{
value.DataType = dataType.toNullableType();
}
}
}
return(value ?? DefaultDataMember);
}
/// <summary>
/// 成员信息
/// </summary>
/// <param name="member">成员信息</param>
private MemberIndex(MemberIndexInfo member)
: base(member)
{
MemberType = member.MemberSystemType;
MemberName = Member.Name;
}
