June, 2016

Posted on Jun 1, 2016

#notes

2016-06-01

Experimenting with IFPRI OAI (we want to harvest their publications)
After reading the ContentDM documentation I found IFPRI’s OAI endpoint: http://ebrary.ifpri.org/oai/oai.php
After reading the OAI documentation and testing with an OAI validator I found out how to get their publications
This is their publications set: http://ebrary.ifpri.org/oai/oai.php?verb=ListRecords&from=2016-01-01&set=p15738coll2&metadataPrefix=oai_dc
You can see the others by using the OAI ListSets verb: http://ebrary.ifpri.org/oai/oai.php?verb=ListSets
Working on second phase of metadata migration, looks like this will work for moving CPWF-specific data in dc.identifier.fund to cg.identifier.cpwfproject and then the rest to dc.description.sponsorship

dspacetest=# update metadatavalue set metadata_field_id=130 where metadata_field_id=75 and (text_value like 'PN%' or text_value like 'PHASE%' or text_value = 'CBA' or text_value = 'IA');
UPDATE 497
dspacetest=# update metadatavalue set metadata_field_id=29 where metadata_field_id=75;
UPDATE 14

Fix a few minor miscellaneous issues in dspace.cfg (#227)

2016-06-02

Testing the configuration and theme changes for the upcoming metadata migration and I found some issues with cg.coverage.admin-unit
Seems that the Browse configuration in dspace.cfg can’t handle the ‘-’ in the field name:

webui.browse.index.12 = subregion:metadata:cg.coverage.admin-unit:text

But actually, I think since DSpace 4 or 5 (we are 5.1) the Browse indexes come from Discovery (defined in discovery.xml) so this is really just a parsing error
I’ve sent a message to the DSpace mailing list to ask about the Browse index definition
A user was having problems with submission and from the stacktrace it looks like a Sherpa/Romeo issue
I found a thread on the mailing list talking about it and there is bug report and a patch: https://jira.duraspace.org/browse/DS-2740
The patch applies successfully on DSpace 5.1 so I will try it later

2016-06-03

Investigating the CCAFS authority issue, I exported the metadata for the Videos collection
The top two authors are:

CGIAR Research Program on Climate Change, Agriculture and Food Security::acd00765-02f1-4b5b-92fa-bfa3877229ce::500
CGIAR Research Program on Climate Change, Agriculture and Food Security::acd00765-02f1-4b5b-92fa-bfa3877229ce::600

So the only difference is the “confidence”
Ok, well THAT is interesting:

dspacetest=# select text_value, authority, confidence from metadatavalue where metadata_field_id=3 and text_value like '%Orth, %';
 text_value |              authority               | confidence
------------+--------------------------------------+------------
 Orth, A.   | ab606e3a-2b04-4c7d-9423-14beccf54257 |         -1
 Orth, A.   | ab606e3a-2b04-4c7d-9423-14beccf54257 |         -1
 Orth, A.   | ab606e3a-2b04-4c7d-9423-14beccf54257 |         -1
 Orth, Alan |                                      |         -1
 Orth, Alan |                                      |         -1
 Orth, Alan |                                      |         -1
 Orth, Alan |                                      |         -1
 Orth, A.   | 05c2c622-d252-4efb-b9ed-95a07d3adf11 |         -1
 Orth, A.   | 05c2c622-d252-4efb-b9ed-95a07d3adf11 |         -1
 Orth, A.   | ab606e3a-2b04-4c7d-9423-14beccf54257 |         -1
 Orth, A.   | ab606e3a-2b04-4c7d-9423-14beccf54257 |         -1
 Orth, Alan | ad281dbf-ef81-4007-96c3-a7f5d2eaa6d9 |        600
 Orth, Alan | ad281dbf-ef81-4007-96c3-a7f5d2eaa6d9 |        600
(13 rows)

And now an actually relevent example:

dspacetest=# select count(*) from metadatavalue where metadata_field_id=3 and text_value like 'CGIAR Research Program on Climate Change, Agriculture and Food Security' and confidence = 500;
 count
-------
   707
(1 row)

dspacetest=# select count(*) from metadatavalue where metadata_field_id=3 and text_value like 'CGIAR Research Program on Climate Change, Agriculture and Food Security' and confidence != 500;
 count
-------
   253
(1 row)

Trying something experimental:

dspacetest=# update metadatavalue set confidence=500 where metadata_field_id=3 and text_value like 'CGIAR Research Program on Climate Change, Agriculture and Food Security';
UPDATE 960

And then re-indexing authority and Discovery…?
After Discovery reindex the CCAFS authors are all together in the Authors sidebar facet
The docs for the ORCiD and Authority stuff for DSpace 5 mention changing the browse indexes to use the Authority as well:

webui.browse.index.2 = author:metadataAuthority:dc.contributor.author:authority

That would only be for the “Browse by” function… so we’ll have to see what effect that has later

2016-06-04

Re-sync DSpace Test with CGSpace and perform test of metadata migration again
Run phase two of metadata migrations on CGSpace (see the migration notes)
Run all system updates and reboot CGSpace server

2016-06-07

Figured out how to export a list of the unique values from a metadata field ordered by count:

dspacetest=# \copy (select text_value, count(*) from metadatavalue where resource_type_id=2 and metadata_field_id=29 group by text_value order by count desc) to /tmp/sponsorship.csv with csv;

Identified the next round of fields to migrate:
- dc.title.jtitle → dc.source
- dc.crsubject.crpsubject → cg.contributor.crp
- dc.contributor.affiliation → cg.contributor.affiliation
- dc.Species → cg.species
- dc.contributor.corporate → dc.contributor
- dc.identifier.url → cg.identifier.url
- dc.identifier.doi → cg.identifier.doi
- dc.identifier.googleurl → cg.identifier.googleurl
- dc.identifier.dataurl → cg.identifier.dataurl
Discuss pulling data from IFPRI’s ContentDM with Ryan Miller
Looks like OAI is kinda obtuse for this, and if we use ContentDM’s API we’ll be able to access their internal field names (rather than trying to figure out how they stuffed them into various, repeated Dublin Core fields)