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From "Martin Alderson (JIRA)" <>
Subject [jira] Commented: (DIRSTUDIO-513) Do delete before add when modifying attribute values
Date Fri, 16 Oct 2009 15:15:31 GMT


Martin Alderson commented on DIRSTUDIO-513:

Stefan: On the mailing list you convinced me it was an eDirectory problem by quoting RFC4511,
section 4.6:

     ........ as a single atomic operation.  While individual
     modifications may violate certain aspects of the directory schema
     (such as the object class definition and Directory Information Tree
     (DIT) content rule), the resulting entry after the entire list of
     modifications is performed MUST conform to the requirements of the
     directory model and controlling schema [RFC4512].

To me, this sounds like the order of add and delete operations shouldn't matter as far as
schema validation goes.  I guess you are right about the delete operation though - it wouldn't
know which value to delete.  That could lead to the object class you add being deleted immediately!

The solution you've implemented for studio sounds good, thanks.

> Do delete before add when modifying attribute values
> ----------------------------------------------------
>                 Key: DIRSTUDIO-513
>                 URL:
>             Project: Directory Studio
>          Issue Type: Improvement
>          Components: studio-ldapbrowser
>    Affects Versions: 1.4.0
>            Reporter: Martin Alderson
>            Assignee: Stefan Seelmann
>            Priority: Minor
>             Fix For: 1.5.0
> When connecting to Novell eDirectory and modifying the schema an "Attribute Or Value
Exists" error occurs.  This is due to the modification performing an add before the delete
and eDirectory (wrongly) complains that the same OID has been used more than once before realising
that the old value should be deleted.  Note that this is a problem with eDirectory but it
would be useful if Studio asked for the delete to be performed before the add when modifying
an attribute value which eDirectory is OK with.
> An example of the LDIF in the modifications logs view for an operation that fails is:
> dn: cn=schema
> changetype: modify
> add: objectClasses
> objectClasses: ( 2.16.840.1.113730.3.2.2 NAME 'inetOrgPerson' [ value...]
> -
> delete: objectClasses
> objectClasses: ( 2.16.840.1.113730.3.2.2 NAME 'inetOrgPerson' [...old value...]
> -
> It also seems that modifying the schema on ApacheDS has the same issue.

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