[Koha-bugs] [Bug 29522] Bib record not correctly updated when merging identical authorities with LinkerModule set to First Match

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=29522

Nick Clemens <nick at bywatersolutions.com> changed:

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--- Comment #13 from Nick Clemens <nick at bywatersolutions.com> ---
Created attachment 161525
  -->
https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=161525&action=edit
Bug 29522: [alternate] Skip relinking bibliographic records when merging
authorities

If autolinking is enabled, there are scenarios where the authorities merge
process
updates the record, then sends it to ModBiblio which then AutoLinks the record,
undoing
the changes in the record (as the 'from' authority is not removed until the
process is complete)

This patch simply disables the autolinking process when merging authorities

To test:

Set system preferences
    AutoCreateAuthorities = don't generate
    RequireChoosingExistingAuthority = don't require
    AutoLinkBiblios = Do
    CatalogModuleRelink = Do
    LinkerKeepStale = Don't
    LinkerModule = first match
    LinkerRelink = Do

1. Create an authority record
   1.1. Go to Authorities
   1.2. Click on "New authority" and choose an authority type (I chose
Corporate name)*
   1.3. Fill in the mandatory fields (000, 003, 005, 008, 040)
   1.4. In tab 1, click on the label of the main heading (110 for Corporate
name)
   1.5. Fill in subfield
   1.6. Copy content of subfield
   1.7. Click on "Save"
   1.8. Note the authority record number

2. Duplicate the authority record
   2.1. Click on "Edit" and choose "Edit as new (duplicate)"
   2.2. Click on "Save"
   2.3. Click on "No: Save as new authority"
   2.4. Note the authority record number (should be the number from step 1.8
+1)

3. Link one of the authority records to a bibliographic record
   3.1 In another tab, do a catalog search
   3.2. Click on "Edit record" under one of the search results
   3.3. Go to the relevant tab (for corporate name, I used field 710 in tab 7)
        3.3.a. If there are no empty fields for that tag, click the "Repeat
this tag" button (two rectangles)
   3.4. Paste the text previously copied in subfield
   3.5. Click on "Link authorities automatically" at the top of the page
   3.6. Note the authority record number in subfield
        --> The linked authority record should be the first authority record
(step 1.8)
   3.7. Click on "Save"

4. Merge the two authority records, keep the one that is not linked to the
bibliographic record
   4.1. Go back to the tab with the authorities
   4.1. Go to Authorities
   4.2. Search for the aurhorities previous created
   4.2. Click on "Actions" and choose "Merge" for both records
   4.3. Select the record number that is NOT linked to the bibliographic record
   4.4. Click on "Next"
   4.5. Click on "Merge"

5. Check the bibliographic record
   5.1. Go back to the tab with the bibliographic record and refresh the page
(Ctrl+F5)
   5.2. Hover the mouse cursor over the name or term, without clicking
   5.3. Note the record number that appears at the bottom of the screen
        --> The record number was not changed
6. Apply the patch
    6.1. Run prove t/AuthoritiesMarc_MARC21.t
    6.2. Repeat Previous steps 1, 2, 3, 4, 5
        --> The record number is change

Signed-off-by: Barbara Petritsch <barbara.petritsch at wienmuseum.at>

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