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Before running the migration, you can dump the section lists stored in ordered_master_file_ids by running:
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RAILS_ENV=production bundle exec rails r "ActiveFedora::SolrService.instance.conn.get('select', params: { rows: 1_000_000, q: 'has_model_ssim:MediaObject', fl: [:id, :section_id_ssim], sort: 'id asc' })['response']['docs'].each {|doc| puts \"#{doc['id']}: section_ids: #{doc['section_id_ssim'] || []}\" }" > log/section_list_dump.pre_migration.txt |
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After the migration, run the following line to dump again and validate that the section lists, now stored in section_ids matches the one dumped prior to the migration:
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RAILS_ENV=production bundle exec rails r "ActiveFedora::SolrService.instance.conn.get('select', params: { rows: 1_000_000, q: 'has_model_ssim:MediaObject', fl: [:id, :section_list_ssim], sort: 'id asc' })['response']['docs'].each {|doc| puts \"#{doc['id']}: section_ids: #{JSON.parse(doc['section_list_ssim'].first || '[]').to_s}\" }" > log/section_list_dump.post_migration.txt diff -awu log/section_list_dump.pre_migration.txt log/section_list_dump.post_migration.txt |
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