Re: Newbie Advice on Schema Change

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From: Dmitri Gavrilov [MSFT] (dmitrig_at_online.microsoft.com)
Date: 03/26/04 

Date: Fri, 26 Mar 2004 12:33:53 -0800

Here is what you need to do:

dn: cn=acmeProfileName,cn=schema,cn=configuration,dc=x
changetype: ntdsschemaadd
objectclass: attributeSchema
lDAPDisplayName: acmeProfileName
attributeId: 1.3.6.1.4.1.999.1.1.28.314355
oMSyntax: 20
attributeSyntax: 2.5.5.4

dn:
changetype: modify
add: schemaUpdateNow
schemaUpdateNow: 1
-

dn: cn=user,cn=schema,cn=configuration,dc=x
changetype: modify
add: mayContain
mayContain: acmeProfileName
-

dn:
changetype: Modify
add: schemaUpdateNow
schemaUpdateNow: 1
-

Note however, that this will fail if you don't have user class imported. It
is possible to have an ADAM without user class. I don't understand your
question re "is there a better class to attach it to". Will your application
function if there are no users? 

-- 
Dmitri Gavrilov
SDE, Active Directory Core
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"BryanV" <nobody@nowhere.invalid> wrote in message
news:upRdwr1EEHA.3804@TK2MSFTNGP09.phx.gbl...
>
> I have a requirement that my app read a piece of user configuration data
> from ActiveDirectory.  I am using ADAM to try and prototype this new
> functionality.
>
> I would like to add an attribute to the schema, e.g. acmeProfileName, and
> make this attribute an optional attribute of some schema class that is
> guaranteed to exist.
>
> Question 1:
>
> Is "user" the appropriate schemaClass to attach this new attribute to?
Will
> this class always exist, or is there a better one?  I've seen references
to
> Auxiliary classes, but don't know if that is the way to go.  I'm talking
> about only a single attribute here.
>
> I have succeeded in making an LDIF file to create my new attribute -- that
> part works, since the new attribute shows up in the list of attributes
using
> the ADAM schema editor snap in.  The attribute just does not show up on
> User.
>
> Using the schema editor, I can manually attach that attribute to a class,
> but I have not succeeded in making this association between attribute and
> class using an LDIF file.  I've been using the ms-user.ldf file as an
> example, and trying to find the minimal set of instructions to create my
new
> string attribute, acmeProfileName, and attach it to the user class.
>
> Question 2:
>
> How to I take my new attribute and make it an optional attribute on the
user
> class?
>
> Thanks for any assistance...
>
>
> Here is the LDIF that I use to create the attribute and try to make it
part
> of User:
>
> dn: cn=acmeProfileName,cn=schema,cn=configuration,dc=x
> changetype: ntdsschemaadd
> objectclass: attributeSchema
> lDAPDisplayName: acmeProfileName
> attributeId: 1.3.6.1.4.1.999.1.1.28.314355
> oMSyntax: 20
> attributeSyntax: 2.5.5.4
>
> dn:
> changetype: modify
> add: schemaUpdateNow
> schemaUpdateNow: 1
> -
>
>
> dn: cn=user,cn=schema,cn=configuration,dc=x
> changetype: ntdsschemaadd
> objectClass: classSchema
> mayContain: acmeProfileName
>
> dn:
> changetype: Modify
> add: schemaUpdateNow
> schemaUpdateNow: 1
> -
>
>
> And here is the error-free output from running this on a clean ADAM
> directory to which I have imported ms-user:
> C:\WINDOWS\ADAM>ldifde -i -f ms-user.ldf -s localhost -k -j . -c
> "CN=Schema,CN=C
> onfiguration,DC=X" #schemaNamingContext
> Connecting to "localhost"
> Logging in as current user using SSPI
> Importing directory from file "ms-user.ldf"
> Loading
> entries.................................................................
> .
> 65 entries modified successfully.
>
> The command has completed successfully
>
> C:\WINDOWS\ADAM>ldifde -i -f acmeProfileName.ldf -s localhost -k -j . -c
> "CN=Sch
> ema,CN=Configuration,DC=X" #schemaNamingContext
> Connecting to "localhost"
> Logging in as current user using SSPI
> Importing directory from file "acmeProfileName.ldf"
> Loading entries.....
> 4 entries modified successfully.
>
> The command has completed successfully
>
>

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