Patrick and Cory,

Thank you for surfacing this issue. We've looked into this more and I'd like to 
work with you to determine the desired outcome for migration of these dates. 
I'll reach out to you directly. If anyone else reading these messages has a 
strong interest in or suggestions for the migration of this information, would 
you please comment here or reach out to me to participate in these discussions?

In the meantime, I would suggest that people who have both structured dates and 
date expressions on Agents in their pre-3.0 ArchivesSpace hold off on migrating 
for now. These kinds of dates would typically be in your Dates of Existence 
sub-records. If pre-3.0 you have been using only the Dates field in a Name 
Form, or if you only use structured dates, the issue mentioned here is less 
likely to be pertinent to you.

Thanks for your help,
Christine

Christine Di Bella
ArchivesSpace Program Manager
[email protected]<mailto:[email protected]>
800.999.8558 x2905
678-235-2905


[ASpaceOrgHomeMedium]



From: [email protected] 
<[email protected]> On Behalf Of Cory 
Nimer
Sent: Tuesday, June 22, 2021 10:59 AM
To: Archivesspace Users Group <[email protected]>
Subject: Re: [Archivesspace_Users_Group] Duplicated agent dates in migration to 
3.0.1

Patrick,

We found the same thing in our test migration to 3.0.1. In cases where an Agent 
date entry included both a date expression and normalized dates, the 
application had split up the 2.8 date entry into two separate entries--one for 
the date expression (without normalized dates) and one for the normalized dates 
(without date expressions). Our impression was that the application was not 
parsing the date expression at all.

This is a significant issue for us moving forward, and we would be interested 
in learning more about what approaches other institutions have been considering 
to address this issue.

Best,

Cory Nimer
University Archivist
Brigham Young University

From: 
[email protected]<mailto:[email protected]>
 
<[email protected]<mailto:[email protected]>>
 On Behalf Of Galligan, Patrick
Sent: Monday, June 21, 2021 12:10 PM
To: Archivesspace Users Group 
<[email protected]<mailto:[email protected]>>
Subject: [Archivesspace_Users_Group] Duplicated agent dates in migration to 
3.0.1

Hi all,

We've noticed that in our test migration from ArchivesSpace version 2.8.0 to 
3.0.1 that the agent migration was sometimes creating two separate structured 
dates based on whether there was an existing date expression or not in the 
dates of existence section.

Here is the JSON before migration:

    "dates_of_existence": [
        {
            "lock_version": 0,
            "expression": "1915-2017",
            "begin": "1915",
            "end": "2017",
            "created_by": "pgalligan",
            "last_modified_by": "pgalligan",
            "create_time": "2019-12-04T14:24:11Z",
            "system_mtime": "2019-12-04T14:24:11Z",
            "user_mtime": "2019-12-04T14:24:11Z",
            "date_type": "range",
            "label": "existence",
            "jsonmodel_type": "date"
        }
    ],


Here is the JSON post-migration:

"dates_of_existence": [
        {
            "create_time": "2021-06-16T19:12:16Z",
            "system_mtime": "2021-06-16T19:12:16Z",
            "user_mtime": "2021-06-16T19:12:16Z",
            "lock_version": 0,
            "date_label": "existence",
            "date_type_structured": "single",
            "jsonmodel_type": "structured_date_label",
            "structured_date_single": {
                "date_expression": "1915-2017",
                "create_time": "2021-06-16T19:12:16Z",
                "system_mtime": "2021-06-16T19:12:16Z",
                "user_mtime": "2021-06-16T19:12:16Z",
                "lock_version": 0,
                "date_role": "begin",
                "date_standardized_type": "standard",
                "jsonmodel_type": "structured_date_single"
            }
        },
        {
            "create_time": "2021-06-16T19:12:16Z",
            "system_mtime": "2021-06-16T19:12:16Z",
            "user_mtime": "2021-06-16T19:12:16Z",
            "lock_version": 0,
            "date_label": "existence",
            "date_type_structured": "range",
            "jsonmodel_type": "structured_date_label",
            "structured_date_range": {
                "begin_date_standardized": "1915",
                "end_date_standardized": "2017",
                "create_time": "2021-06-16T19:12:16Z",
                "system_mtime": "2021-06-16T19:12:16Z",
                "user_mtime": "2021-06-16T19:12:16Z",
                "lock_version": 0,
                "begin_date_standardized_type": "standard",
                "end_date_standardized_type": "standard",
                "jsonmodel_type": "structured_date_range"
            }
        }
    ],

It also seems to be creating a structured singular date instead of a date 
range. It's parsing the expression correctly into separate dates, but it's 
entirely unnecessary and creates and incorrect duplication.

This seems like a bug and would stop us from updating because it'd be a hassle 
to go in and remove these.

Is this intended behavior for this migration? There may be something I'm not 
understanding about MARC or EAC-CPF that makes this desirable, but it seems 
like a bug to me.

Thanks,
Patrick Galligan
Rockefeller Archive Center
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