[389-users] Attribute value ordering

[Ludwig Krispenz]

On 08/21/2013 04:21 PM, Mitja Mihelič wrote:
> After a bit more time with the Console I changed the order of the 
> attributes within the textbox(?) that displays the mail attribute values.
> Please see the attached screenshots.
> Ldapsearch output also confirms the new order. The change seems 
> persistent, at least for now.
> I do not know what happened in the background.
>
> Do you think this could also be done from the command line?
you could do this with ldapmodify by doing
replace: mail
mail: mail1
mail: mail2
mail: mail3.

But be aware that there is no guarantee that this order does not change. 
Although LDAP defines the values of an attribuet as set, which means NO 
order, directory server tries to preserve the order the attribute values 
have been added. But there may still be some cases eg in replication 
where an entry is modified on different servers and update resolution 
determines the valid set of values the order could be lost.

If you really want to have only one primary mail address, you should 
only have one mail value and put the others into mailalternateaddress ( 
if your clients can handle that)

Ludwig
>
> Regards,
> Mitja
>
> -- 
> Mitja Mihelič
> ARNES, Tehnološki park 18, p.p. 7, SI-1001 Ljubljana, Slovenia
> tel: +386 1 479 8877, fax: +386 1 479 88 78
>
> On 08/19/2013 05:22 PM, Rich Megginson wrote:
>> On 08/19/2013 09:12 AM, Mitja Mihelič wrote:
>>> Hi!
>>>
>>> Out DIT holds user entries that have multiple "mail" attributes 
>>> (main email, aliases).
>>> Here is an example entry:
>>> dn: eduPersonPrincipalName=user at example.com,dc=example,dc=com
>>> mail: nickname at example.com
>>> mail: user at example.com
>>> mail: user.name at example.com
>>>
>>> Our application (e.g. WordPress) authenticates against the 389DS and 
>>> also pull some additional attributes, needed by the application. In 
>>> this case the email address.
>>> The application picks up the first mail attribute received and uses 
>>> it as the user's email. In this case would be 
>>> "nickname at example.com", which is unwanted. The desired outcome would 
>>> be the "user.name at example.com" displayed as first.
>>> By what algorithm/logic do the attributes get sorted? Time added 
>>> perhaps?
>> Undefined.
>>> Is there any way of influencing this sorting?
>> No.
>>>
>>>
>>> We were also thinking of putting the "main" email into another 
>>> attribute. Which attribute would be appropriate for something like 
>>> this?
>> There is an attribute 'mailAlternateAddress' - not sure what it is 
>> used for
>>>
>>> Regards,
>>> Mitja
>>>
>
>
>
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