Omela Classic plugin that allows admins to configure metadata fields to link to a search for Items/Collections with the same field value.
Uncompress files and rename plugin folder "SearchByMetadata".
Then install it like any other Omeka plugin.
Add logic to merge results (= clicking on a link shows results both from Items and Collections; could need to make available another Browse page, or a Search one). Behaviour has to be optional (specifi option already foreseen for configuration).
Use it at your own risk.
It’s always recommended to backup your files and your databases and to check your archives regularly so you can roll back if needed.
See online issues on the plugin issues page on GitHub.
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Copyright Daniele Binaghi, 2021