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move Bulkrax field mappings to Hyku
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A recent Hyku feature introduced the ability to configure Bulkrax field
mappings on a per-tenant basis. It also introduced a bug that impacted
existing Hyku applications who had custom field mappings. Since the
feature fell back on Bulkrax's default field mappings if an Account
hadn't explicitly set their own, the existing field mapping
customizations in the Bulkrax initializer were ignored.

To solve that issue, as well as the question of "what if I want all my
tenants to have the same field mappings, but don't want to customize
them all by hand?", this commit introduces the idea of a set of default
field mappings at the Hyku application level.

This means that when Bulkrax looks for field mappings, it will discover
them in this order (depending on presence):

Account setting? -> Hyku defaults? -> Bulkrax defaults

There are a couple reasons why I decided to put this in the Hyku module
instead of just using Hyku's Bulkrax initializer:
1. Since they're Hyku's defaults, it makes sense to denote them as such
   semantically and conceptually
2. Since the ultimate fallback is Bulkrax's default field mappings, it
   makes sense not to alter the field mappings that Bulkrax "manages"
   with this feature
3. When adding hyku_knapsack into the mix, their often ends up being
   three separate Bulkrax config files (the knapsack's
   config/initializers/bulkrax.rb, Hyku's
   config/initializers/bulkrax.rb, and Bulkrax's lib/bulkrax.rb). This
   gets very muddy very quickly with how knapsack works technically

Ref:
- #2384
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bkiahstroud committed Nov 22, 2024
1 parent 571c2de commit da23315
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Showing 4 changed files with 103 additions and 95 deletions.
2 changes: 1 addition & 1 deletion app/models/concerns/account_settings.rb
Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,7 @@ module AccountSettings
setting :allow_downloads, type: 'boolean', default: true
setting :allow_signup, type: 'boolean', default: true
setting :analytics_provider, type: 'string'
setting :bulkrax_field_mappings, type: 'json_editor', default: Bulkrax.field_mappings.to_json
setting :bulkrax_field_mappings, type: 'json_editor', default: Hyku.default_bulkrax_field_mappings.to_json
setting :bulkrax_validations, type: 'boolean', disabled: true
setting :cache_api, type: 'boolean', default: false
setting :contact_email, type: 'string', default: '[email protected]'
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94 changes: 94 additions & 0 deletions config/application.rb
Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,100 @@ def self.bulkrax_enabled?
ActiveModel::Type::Boolean.new.cast(ENV.fetch('HYKU_BULKRAX_ENABLED', true))
end

# This represents the default Bulkrax field mappings that new Accounts will be initialized with.
# Bulkrax field mappings should not be configured within the Bulkrax initializer in Hyku.
# @see lib/bulkrax/bulkrax_decorator.rb
# @see https://github.com/samvera/bulkrax/wiki/Configuring-Bulkrax#field-mappings
def self.default_bulkrax_field_mappings
default_bulkrax_fm = {}
defaults = {
'abstract' => { from: ['abstract'], split: true },
'accessibility_feature' => { from: ['accessibility_feature'], split: '\|' },
'accessibility_hazard' => { from: ['accessibility_hazard'], split: '\|' },
'accessibility_summary' => { from: ['accessibility_summary'] },
'additional_information' => { from: ['additional_information'], split: '\|', generated: true },
'admin_note' => { from: ['admin_note'] },
'admin_set_id' => { from: ['admin_set_id'], generated: true },
'alternate_version' => { from: ['alternate_version'], split: '\|' },
'alternative_title' => { from: ['alternative_title'], split: '\|', generated: true },
'arkivo_checksum' => { from: ['arkivo_checksum'], split: '\|', generated: true },
'audience' => { from: ['audience'], split: '\|' },
'based_near' => { from: ['location'], split: '\|' },
'bibliographic_citation' => { from: ['bibliographic_citation'], split: true },
'contributor' => { from: ['contributor'], split: true },
'create_date' => { from: ['create_date'], split: true },
'children' => { from: ['children'], related_children_field_mapping: true },
'committee_member' => { from: ['committee_member'], split: '\|' },
'creator' => { from: ['creator'], split: true },
'date_created' => { from: ['date_created'], split: true },
'date_uploaded' => { from: ['date_uploaded'], generated: true },
'degree_discipline' => { from: ['discipline'], split: '\|' },
'degree_grantor' => { from: ['grantor'], split: '\|' },
'degree_level' => { from: ['level'], split: '\|' },
'degree_name' => { from: ['degree'], split: '\|' },
'depositor' => { from: ['depositor'], split: '\|', generated: true },
'description' => { from: ['description'], split: true },
'discipline' => { from: ['discipline'], split: '\|' },
'education_level' => { from: ['education_level'], split: '\|' },
'embargo_id' => { from: ['embargo_id'], generated: true },
'extent' => { from: ['extent'], split: true },
'file' => { from: ['file'], split: /\s*[|]\s*/ },
'identifier' => { from: ['identifier'], split: true },
'import_url' => { from: ['import_url'], split: '\|', generated: true },
'keyword' => { from: ['keyword'], split: true },
'label' => { from: ['label'], generated: true },
'language' => { from: ['language'], split: true },
'lease_id' => { from: ['lease_id'], generated: true },
'library_catalog_identifier' => { from: ['library_catalog_identifier'], split: '\|' },
'license' => { from: ['license'], split: /\s*[|]\s*/ },
'modified_date' => { from: ['modified_date'], split: true },
'newer_version' => { from: ['newer_version'], split: '\|' },
'oer_size' => { from: ['oer_size'], split: '\|' },
'on_behalf_of' => { from: ['on_behalf_of'], generated: true },
'owner' => { from: ['owner'], generated: true },
'parents' => { from: ['parents'], related_parents_field_mapping: true },
'previous_version' => { from: ['previous_version'], split: '\|' },
'publisher' => { from: ['publisher'], split: true },
'related_item' => { from: ['related_item'], split: '\|' },
'relative_path' => { from: ['relative_path'], split: '\|', generated: true },
'related_url' => { from: ['related_url', 'relation'], split: /\s* [|]\s*/ },
'remote_files' => { from: ['remote_files'], split: /\s*[|]\s*/ },
'rendering_ids' => { from: ['rendering_ids'], split: '\|', generated: true },
'resource_type' => { from: ['resource_type'], split: true },
'rights_holder' => { from: ['rights_holder'], split: '\|' },
'rights_notes' => { from: ['rights_notes'], split: true },
'rights_statement' => { from: ['rights', 'rights_statement'], split: '\|', generated: true },
'source' => { from: ['source'], split: true },
'state' => { from: ['state'], generated: true },
'subject' => { from: ['subject'], split: true },
'table_of_contents' => { from: ['table_of_contents'], split: '\|' },
'title' => { from: ['title'], split: /\s*[|]\s*/ },
'video_embed' => { from: ['video_embed'] }
}

default_bulkrax_fm['Bulkrax::BagitParser'] = defaults.merge({
# add or remove custom mappings for this parser here
})

default_bulkrax_fm['Bulkrax::CsvParser'] = defaults.merge({
# add or remove custom mappings for this parser here
})

default_bulkrax_fm['Bulkrax::OaiDcParser'] = defaults.merge({
# add or remove custom mappings for this parser here
})

default_bulkrax_fm['Bulkrax::OaiQualifiedDcParser'] = defaults.merge({
# add or remove custom mappings for this parser here
})

default_bulkrax_fm['Bulkrax::XmlParser'] = defaults.merge({
# add or remove custom mappings for this parser here
})

default_bulkrax_fm.with_indifferent_access
end

# rubocop:disable Metrics/ClassLength
class Application < Rails::Application
##
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100 changes: 7 additions & 93 deletions config/initializers/bulkrax.rb
Original file line number Diff line number Diff line change
Expand Up @@ -45,99 +45,13 @@
# config.collection_field_mapping['Bulkrax::RdfEntry'] = 'http://opaquenamespace.org/ns/set'

# Field mappings
# Create a completely new set of mappings by replacing the whole set as follows
# config.field_mappings = {
# "Bulkrax::OaiDcParser" => { **individual field mappings go here*** }
# }

# Add to, or change existing mappings as follows
# e.g. to exclude date
# config.field_mappings["Bulkrax::OaiDcParser"]["date"] = { from: ["date"], excluded: true }

default_field_mapping = {
'abstract' => { from: ['abstract'], split: true },
'accessibility_feature' => { from: ['accessibility_feature'], split: '\|' },
'accessibility_hazard' => { from: ['accessibility_hazard'], split: '\|' },
'accessibility_summary' => { from: ['accessibility_summary'] },
'additional_information' => { from: ['additional_information'], split: '\|', generated: true },
'admin_note' => { from: ['admin_note'] },
'admin_set_id' => { from: ['admin_set_id'], generated: true },
'alternate_version' => { from: ['alternate_version'], split: '\|' },
'alternative_title' => { from: ['alternative_title'], split: '\|', generated: true },
'arkivo_checksum' => { from: ['arkivo_checksum'], split: '\|', generated: true },
'audience' => { from: ['audience'], split: '\|' },
'based_near' => { from: ['location'], split: '\|' },
'bibliographic_citation' => { from: ['bibliographic_citation'], split: true },
'contributor' => { from: ['contributor'], split: true },
'create_date' => { from: ['create_date'], split: true },
'children' => { from: ['children'], related_children_field_mapping: true },
'committee_member' => { from: ['committee_member'], split: '\|' },
'creator' => { from: ['creator'], split: true },
'date_created' => { from: ['date_created'], split: true },
'date_uploaded' => { from: ['date_uploaded'], generated: true },
'degree_discipline' => { from: ['discipline'], split: '\|' },
'degree_grantor' => { from: ['grantor'], split: '\|' },
'degree_level' => { from: ['level'], split: '\|' },
'degree_name' => { from: ['degree'], split: '\|' },
'depositor' => { from: ['depositor'], split: '\|', generated: true },
'description' => { from: ['description'], split: true },
'discipline' => { from: ['discipline'], split: '\|' },
'education_level' => { from: ['education_level'], split: '\|' },
'embargo_id' => { from: ['embargo_id'], generated: true },
'extent' => { from: ['extent'], split: true },
'file' => { from: ['file'], split: /\s*[|]\s*/ },
'identifier' => { from: ['identifier'], split: true },
'import_url' => { from: ['import_url'], split: '\|', generated: true },
'keyword' => { from: ['keyword'], split: true },
'label' => { from: ['label'], generated: true },
'language' => { from: ['language'], split: true },
'lease_id' => { from: ['lease_id'], generated: true },
'library_catalog_identifier' => { from: ['library_catalog_identifier'], split: '\|' },
'license' => { from: ['license'], split: /\s*[|]\s*/ },
'modified_date' => { from: ['modified_date'], split: true },
'newer_version' => { from: ['newer_version'], split: '\|' },
'oer_size' => { from: ['oer_size'], split: '\|' },
'on_behalf_of' => { from: ['on_behalf_of'], generated: true },
'owner' => { from: ['owner'], generated: true },
'parents' => { from: ['parents'], related_parents_field_mapping: true },
'previous_version' => { from: ['previous_version'], split: '\|' },
'publisher' => { from: ['publisher'], split: true },
'related_item' => { from: ['related_item'], split: '\|' },
'relative_path' => { from: ['relative_path'], split: '\|', generated: true },
'related_url' => { from: ['related_url', 'relation'], split: /\s* [|]\s*/ },
'remote_files' => { from: ['remote_files'], split: /\s*[|]\s*/ },
'rendering_ids' => { from: ['rendering_ids'], split: '\|', generated: true },
'resource_type' => { from: ['resource_type'], split: true },
'rights_holder' => { from: ['rights_holder'], split: '\|' },
'rights_notes' => { from: ['rights_notes'], split: true },
'rights_statement' => { from: ['rights', 'rights_statement'], split: '\|', generated: true },
'source' => { from: ['source'], split: true },
'state' => { from: ['state'], generated: true },
'subject' => { from: ['subject'], split: true },
'table_of_contents' => { from: ['table_of_contents'], split: '\|' },
'title' => { from: ['title'], split: /\s*[|]\s*/ },
'video_embed' => { from: ['video_embed'] }
}

config.field_mappings["Bulkrax::BagitParser"] = default_field_mapping.merge({
# add or remove custom mappings for this parser here
})

config.field_mappings["Bulkrax::CsvParser"] = default_field_mapping.merge({
# add or remove custom mappings for this parser here
})

config.field_mappings["Bulkrax::OaiDcParser"] = default_field_mapping.merge({
# add or remove custom mappings for this parser here
})

config.field_mappings["Bulkrax::OaiQualifiedDcParser"] = default_field_mapping.merge({
# add or remove custom mappings for this parser here
})

config.field_mappings["Bulkrax::XmlParser"] = default_field_mapping.merge({
# add or remove custom mappings for this parser here
})
# NOTE: Bulkrax field mappings are configured on a per-tenant basis in the Account settings.
# The default set of field mappings that new tenants will be initialized with can be found
# and/or modified in config/application.rb (Hyku#default_bulkrax_field_mappings)
# @see config/application.rb
# @see app/models/concerns/account_settings.rb
# WARN: Modifying Bulkrax's field mappings in this file will not work as expected
# @see lib/bulkrax/bulkrax_decorator.rb

# Because Hyku now uses and assumes Valkyrie to query the repository layer, we need to match the
# object factory to use Valkyrie.
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2 changes: 1 addition & 1 deletion lib/bulkrax/bulkrax_decorator.rb
Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ def field_mappings
if Site.account.present? && Site.account.bulkrax_field_mappings.present?
JSON.parse(Site.account.bulkrax_field_mappings).with_indifferent_access
else
super
Hyku.default_bulkrax_field_mappings.presence || super
end
end
end
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