async Task <object> GetMemberValue(MemberInfo member, DbClient conn, ResultRow row)
{
Type memberType = member.GetUnderlyingType();
DbFieldAttribute columnAttribute = member.GetCustomAttribute <DbFieldAttribute>(true);
DbReferenceAttribute referenceAttribute = member.GetCustomAttribute <DbReferenceAttribute>(true);
if (columnAttribute != null)
{
object value = row[columnAttribute.Name ?? member.Name];
string columnName = columnAttribute.Name ?? member.Name;
if (columnAttribute.ValidFormatter(memberType))
{
value = columnAttribute.FormatSetValue(memberType, value);
}
else if (memberType == typeof(DateTime))
{
value = row.GetDateTime(columnName, default(DateTime));
}
else if (memberType == typeof(bool))
{
value = row.GetBoolean(columnName);
}
if (!(value is DBNull))
{
return(value);
}
}
if (referenceAttribute != null)
{
object value = row[referenceAttribute.Column];
ReferenceType refType = ReferenceType.Singular;
if (memberType.IsGenericType && memberType.GetGenericTypeDefinition() == typeof(List <>))
{
memberType = memberType.GetGenericArguments()[0];
refType = ReferenceType.List;
}
else if (memberType.IsArray)
{
memberType = memberType.GetElementType();
refType = ReferenceType.Array;
}
object result = await(Task <object>) GetNestedMethod().MakeGenericMethod(memberType).Invoke(
this,
new object[]
{
conn,
referenceAttribute.ForeignColumn,
value,
refType
}
);
if (!(value is DBNull))
{
return(result);
}
}
return(null);
}