Perl help

Greetings,

I need to know how to take an email address (directly from an email 

header) and get the actual UserId/PrincipalId from RT. I have the
address split out and now I just need an ID. I’m assuming that the
PrincipalId is the same thing as the Name field from the USERS Table. In
other words, I do NOT want to add an entire email address as a Ticket
watcher, I want the Name field from the USers Table (ie. instead of
KFCrocker@lbl.gov I want KFCrocker or whatever name correlates to
KFCrocker@lbl.gov). Thank you in advance.

Kenn
LBNL

I think you miss concepts:

  • each user is principal

  • each group is principal

  • but three above are records in different tables

  • id of a user is equal to id of its principal record

  • the same applies to groups

  • in DB couldn’t be a group with id equal to id of a user

  • every watcher is a user

  • id, name and email address are unique fields

  • because of this uniquenes AddWatcher methods can take email address
    as an argumentOn Wed, May 27, 2009 at 1:14 AM, Ken Crocker kfcrocker@lbl.gov wrote:

Greetings,

I need to know how to take an email address (directly from an email
header) and get the actual UserId/PrincipalId from RT. I have the
address split out and now I just need an ID. I’m assuming that the
PrincipalId is the same thing as the Name field from the USERS Table. In
other words, I do NOT want to add an entire email address as a Ticket
watcher, I want the Name field from the USers Table (ie. instead of
KFCrocker@lbl.gov I want KFCrocker or whatever name correlates to
KFCrocker@lbl.gov). Thank you in advance.

Kenn
LBNL


http://lists.bestpractical.com/cgi-bin/mailman/listinfo/rt-users

Community help: http://wiki.bestpractical.com
Commercial support: sales@bestpractical.com

Discover RT’s hidden secrets with RT Essentials from O’Reilly Media.
Buy a copy at http://rtbook.bestpractical.com

Best regards, Ruslan.

I need to know how to take an email address (directly from an email 

header) and get the actual UserId/PrincipalId from RT. I have the
address split out and now I just need an ID. I’m assuming that the
PrincipalId is the same thing as the Name field from the USERS Table. In
other words, I do NOT want to add an entire email address as a Ticket
watcher, I want the Name field from the USers Table (ie. instead of
KFCrocker@lbl.gov I want KFCrocker or whatever name correlates to
KFCrocker@lbl.gov). Thank you in advance.

Going into the database schema directly is a bad idea. Future upgrades can
(and will) change the schema, breaking your customization. Use the REST
interface instead. See http://wiki.bestpractical.com/view/REST

Then, an HTTP GET of the URI ‘/REST/1.0/user/KFCrocker/show’ should get you
something like:

id: user/217
Name: KFCrocker
Password: ********
EmailAddress: KFCrocker@lbl.gov
RealName: Ken Crocker
Lang: en
Privileged: 1
Disabled: 0

However, here you are querying by name, not by email address, so hopefully
they all match. If they don’t you aren’t going to be able to do it reliably
in a future-proof way without doing something you really don’t want to do.

Though really, I’m not sure why you’d want to do this in the first place.
RT is quite happy to look up based on email address internally, you don’t
have to supply the ID when creating tickets and such, just an email address.

– ============================
Tom Lahti
BIT Statement LLC

(425)251-0833 x 117
http://www.bitstatement.net/
– ============================

Once again, ALWAYS cc mailing list! Comments below.

Ruslan,

What? I don't understand your answer. Perhaps I didn't explain myself

very well. Let me try again. I understand the principals, I just don’t know
what code or command or whatever (ie. LOOKs something like
self->TransactionObj->Name(?)->EmailAddress(?) or however it would look) to

To call a method you need an object, so you can not do
…->Name->EmailAddress cuz ->Name usually returns a string.

get the Id or Name of the user when all I have is the email address. I’m

If you have an id, name or email then you can get other details about
record by constructing an object and loading it, for example:

my $user_obj = RT::User->new( $RT::SysteUser );
$user_obj->Load($id); # or $name or use another ->Load* method
unless ( $user_obj->id ) {
… error handling …
}

$user_obj->EmailAddress;
$user_obj->Name;
$user_obj->id;

adding ticket watchers. I don’t want them to be added by email address, but
by ID or name. I don’t know how to code that command. I don’t even know how
to say it correctly, let alone write it, code it, whatever. I’ve seen code
that looks like ($self->TransactionObj->CreatorObj->name; or
$self->TransactionObj->CreatorObj->Id;). Does that make any sense?

If you’re in an user defined scrip action then you can do above things.

Kenn
LBNL

I think you miss concepts:

  • each user is principal

  • each group is principal

  • but three above are records in different tables

  • id of a user is equal to id of its principal record

  • the same applies to groups

  • in DB couldn’t be a group with id equal to id of a user

  • every watcher is a user

  • id, name and email address are unique fields

  • because of this uniquenes AddWatcher methods can take email address
    as an argument

Greetings,

I need to know how to take an email address (directly from an email
header) and get the actual UserId/PrincipalId from RT. I have the
address split out and now I just need an ID. I’m assuming that the
PrincipalId is the same thing as the Name field from the USERS Table. In
other words, I do NOT want to add an entire email address as a Ticket
watcher, I want the Name field from the USers Table (ie. instead of
KFCrocker@lbl.gov I want KFCrocker or whatever name correlates to
KFCrocker@lbl.gov). Thank you in advance.

Kenn
LBNL


http://lists.bestpractical.com/cgi-bin/mailman/listinfo/rt-users

Community help: http://wiki.bestpractical.com
Commercial support: sales@bestpractical.com

Discover RT’s hidden secrets with RT Essentials from O’Reilly Media.
Buy a copy at http://rtbook.bestpractical.com

Best regards, Ruslan.

Ruslan,

My apologies on not CC'ing the list. I was trying to avoid letting 

the world see how ignorant I am on this stuff. Anyway, what I don’t
understand is how to get from an email address (which I DO have) to the
ID or Name of the person that correlates to said Email address. Since I
understand so little of how some of these commands work (for example, I
may see the code “$self->TransactionObj->OldValue !=
RT::Nobody()->id();” but I have no idea why it won’t work like this
"$self->TransactionObj->OldValue != RT::Nobody()->name->id();"). I don’t
see or understand the mechanisms that make the “->” work. My problem is
that I am completely sight-oriented. It’s the old saying, “I can hear
you talking, but I can’t see a word you say”. That’s me. I’ve coded in
over 20 languages in my 40 years in this business, but no perl. Perl is
EXTREMELY harder to understand than COBOL, SQL, even Assembler. I have
no framework of reference points to “See” what the explanations of the
code means. Hence, my mind-boggling frustration (both experienced and
caused) with trying to understand your explanations. Soooo, when you say
"To call a method you need an object, so you can not
do…->Name->EmailAddress cuz ->Name usually returns a string." I have a
difficult time understanding the relationsship between Object and
command so that I would know that
"$self->TransactionObj->EmailAddress->User->Id" won’t work. Does any of
that diatribe make any sense?
What I have is an Email address that someone helped me get from the
Header of the email.It looks like this:
‘KFCrocker@lbl.gov’

So, how do I (or what do I code) get a users name of Id from that?

Thank you soooo much for your patience.

Kenn
LBNLOn 5/26/2009 4:12 PM, Ruslan Zakirov wrote:

Once again, ALWAYS cc mailing list! Comments below.

On Wed, May 27, 2009 at 2:36 AM, Ken Crocker kfcrocker@lbl.gov wrote:

Ruslan,

What? I don't understand your answer. Perhaps I didn't explain myself

very well. Let me try again. I understand the principals, I just don’t know
what code or command or whatever (ie. LOOKs something like
self->TransactionObj->Name(?)->EmailAddress(?) or however it would look) to

To call a method you need an object, so you can not do
…->Name->EmailAddress cuz ->Name usually returns a string.

get the Id or Name of the user when all I have is the email address. I’m

If you have an id, name or email then you can get other details about
record by constructing an object and loading it, for example:

my $user_obj = RT::User->new( $RT::SysteUser );
$user_obj->Load($id); # or $name or use another ->Load* method
unless ( $user_obj->id ) {
… error handling …
}

$user_obj->EmailAddress;
$user_obj->Name;
$user_obj->id;

adding ticket watchers. I don’t want them to be added by email address, but
by ID or name. I don’t know how to code that command. I don’t even know how
to say it correctly, let alone write it, code it, whatever. I’ve seen code
that looks like ($self->TransactionObj->CreatorObj->name; or
$self->TransactionObj->CreatorObj->Id;). Does that make any sense?

If you’re in an user defined scrip action then you can do above things.

Kenn
LBNL

On 5/26/2009 2:27 PM, Ruslan Zakirov wrote:

I think you miss concepts:

  • each user is principal

  • each group is principal

  • but three above are records in different tables

  • id of a user is equal to id of its principal record

  • the same applies to groups

  • in DB couldn’t be a group with id equal to id of a user

  • every watcher is a user

  • id, name and email address are unique fields

  • because of this uniquenes AddWatcher methods can take email address
    as an argument

On Wed, May 27, 2009 at 1:14 AM, Ken Crocker kfcrocker@lbl.gov wrote:

Greetings,

I need to know how to take an email address (directly from an email
header) and get the actual UserId/PrincipalId from RT. I have the
address split out and now I just need an ID. I’m assuming that the
PrincipalId is the same thing as the Name field from the USERS Table. In
other words, I do NOT want to add an entire email address as a Ticket
watcher, I want the Name field from the USers Table (ie. instead of
KFCrocker@lbl.gov I want KFCrocker or whatever name correlates to
KFCrocker@lbl.gov). Thank you in advance.

Kenn
LBNL


http://lists.bestpractical.com/cgi-bin/mailman/listinfo/rt-users

Community help: http://wiki.bestpractical.com
Commercial support: sales@bestpractical.com

Discover RT’s hidden secrets with RT Essentials from O’Reilly Media.
Buy a copy at http://rtbook.bestpractical.com

I don’t see or understand the mechanisms that make the “->” work. My
problem is that I am completely sight-oriented. It’s the old saying, “I
can hear you talking, but I can’t see a word you say”. That’s me. I’ve
coded in over 20 languages in my 40 years in this business, but no perl.
Perl is EXTREMELY harder to understand than COBOL, SQL, even Assembler.
I have no framework of reference points to “See” what the explanations
of the code means.

Kenn,

I found an online book “Beginning Perl” that would answer many of your
questions -

http://www.perl.org/books/beginning-perl/

The “Object-Oriented Perl” chapter in particular explains the “->” syntax.

Might be worth a try - and it’s free!

Steve