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Claudio Escobar
Feb 23, 2018, 12:36:11 PM2/23/18
to AtoM Users
Hello everyone
I have an AtoM with two fonds and I need to copy only one of them to another AtoM (same version). Is it possible to export only the digital objects and descriptions of the desired collection?
Regards!
Dan Gillean
Feb 23, 2018, 1:36:28 PM2/23/18
to ICA-AtoM Users
Hi Claudio,
Right now, there is not an easy way to extract a specific subset of digital objects from AtoM. I've previously posted about the structure of the uploads directory in AtoM in the following thread, in case it is of use:
You might also find the following post of interest:
When you export a CSV of descriptions that include digital objects, AtoM will include a HTTP link to the digital object in the digitalObjectURI column of your export. If the source AtoM instance is publicly accessible (e.g. not behind any firewalls, descriptions are published, etc) and you don't need to store the master digital objects in the target AtoM instance, then you should just be able to import the CSV into your second AtoM instance. In that case, AtoM will treat the digital object links as remotes - it will use the URLs provided in the CSV to generate local derivatives (e.g. thumbnail for search/browse results and reference display copy for view pages) in your target AtoM instance, but instead of storing the master, it will save the source URL to point to it.
If you do need the original master digital objects to be stored in the target (e.g. second) AtoM instance as well, then you may have to do more manual work - something like this should work:
- Export your descriptions from the source system
- Copy the digital objects directory from the source system, and rename it to something like "import"
- Place the "import" digital object directory in the root AtoM directory of the target system
- Open your CSV
- Change the header on the digitalObjectURI column to digitalObjectPath
- Edit the values in the digitalObjectPath column to match those of your new "import" digital objects directory
For example, let's say you had a URL like this in exported CSV for a digital object:
-
http://www.example.com/uploads/r/city-of-greater-sudbury-archives/a/1/c/a1ce9c59b96de5407ca26397cfd88faa308a1d0a81c64f67c490823f215601e5/test.jpg
To make this match our new path, we would want to remove the base URL (e.g. http://www.example.com/), and since we renamed the directory from "uploads" to "import", in the path we will change it in our path as well - so your final digitalObjectPath value should look something like this:
-
import/r/city-of-greater-sudbury-archives/a/1/c/a1ce9c59b96de5407ca26397cfd88faa308a1d0a81c64f67c490823f215601e5/test.jpg
Once you have done this for all rows in the CSV, you should be able to import the CSV to the target system, and then delete the whole "import" directory.
Info on the digital object columns in a CSV import:
Please note: I haven't tested out this particular workflow myself! You might have to experiment a bit. For example, it's possible that the digitalObjectPath column will require an absolute path - in that case, the final path you add might look more like this (assuming you have followed our recommended installation instructions and your root AtoM directory is located at /usr/share/nginx/atom):
- /usr/share/nginx/atom/import/r/city-of-greater-sudbury-archives/a/1/c/a1ce9c59b96de5407ca26397cfd88faa308a1d0a81c64f67c490823f215601e5/test.jpg
Let us know how it goes!
Regards,
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Dan Gillean
Feb 23, 2018, 1:40:23 PM2/23/18
to ICA-AtoM Users
PS:
If you are using version 2.4, then you should be able to perform the CSV export of just the one fonds (and its descendants if desired) from the user interface, using the Clipboard export options. In the 2.4 release, Clipboard exports are supported by the job scheduler, so even large exports should not time out in the web browser. See:
- https://www.accesstomemory.org/docs/2.4/user-manual/import-export/csv-export/#csv-export-clipboard
- More info on the Clipboard: https://www.accesstomemory.org/docs/2.4/user-manual/access-content/clipboard/
Similarly, in the 2.4 release, imports via the user interface area also now supported by the job scheduler and performed asynchronously in the background to avoid web browser timeouts.
Regards,
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abe...@utoronto.ca
Mar 9, 2018, 10:25:59 AM3/9/18
to AtoM Users
Hi Dan,
What about the authority records? Is it possible to do bulk export via the user interface area? For example, exporting all authority records that belong to a specific repository.
Thank you.
Abraham
What about the authority records? Is it possible to do bulk export via the user interface area? For example, exporting all authority records that belong to a specific repository.
Thank you.
Abraham
Dan Gillean
Mar 9, 2018, 11:32:55 AM3/9/18
to ICA-AtoM Users
Hi Abe,
It is possible to bulk export authority records via the Clipboard, but it will require some manual work to get the records you want added there.
Prior to 2.4, there was no way to link an authority record directly to a specific repository - the relationship was indirect via linked archival desrciptions (which in turn are linked to repository records), and since authority records are designed for re-use, any number of repositories in a multi-repository system might be using an authority record to link to a description as a creator or name access point.
In 2.4, we introduced the ability to link an authority record directly to a repository as its maintainer. Other repositories can still make use of the authority record, but this makes clear who is responsible for maintaining it and provides a direct link between authority record and repository record. See:
The Clipboard can perform bulk exports of authority records in either EAC-CPF XML or CSV format. See:
Unfortunately, there's no easy way to bulk add your authority records to the clipboard itself.
If you are using the "Maintaining repository" field in your authority record data, then there will be a facet available on the authority record browse page that will limit results to those related to a specific repository - you'll just have to click through the results and manually add all authority records you want to export to the clipboard. If not, it will be trickier to locate them and add them individually.
Regards,
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