Froidefond Julien
04971b56e8
Add migration 0063 to fuse series where the scanner recreated an old filesystem-named entry alongside the user-renamed canonical one (e.g. "LES MYTHICS" alongside "Mythics"). Uses the original_name column from 0062 to identify and collapse all such duplicates: reassigns books, external_metadata_links, anilist_series_links, then deletes the stale series_metadata row. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
65 lines
2.5 KiB
SQL
65 lines
2.5 KiB
SQL
-- Fix duplicate series created when the scanner recreated a filesystem-named
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-- series alongside a user-renamed one.
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-- Example: user renamed "LES MYTHICS" → "Mythics" via UI, but the scanner
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-- also kept (or recreated) a "LES MYTHICS" entry. This migration merges
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-- all such duplicates by using the original_name column added in 0062.
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--
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-- For each canonical series (original_name IS NOT NULL), if a duplicate still
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-- exists with name = original_name in the same library, we:
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-- 1. Reassign books from the duplicate to the canonical series
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-- 2. Update external_metadata_links
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-- 3. Update anilist_series_links
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-- 4. Delete the duplicate series_metadata row
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-- 1. Reassign books
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UPDATE books b
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SET series = sm_canonical.name
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FROM series_metadata sm_canonical
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JOIN series_metadata sm_dup
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ON sm_dup.library_id = sm_canonical.library_id
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AND sm_dup.name = sm_canonical.original_name
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WHERE b.library_id = sm_canonical.library_id
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AND b.series = sm_dup.name
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AND sm_canonical.original_name IS NOT NULL;
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-- 2. Update external_metadata_links (skip if a row for the canonical name already exists)
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UPDATE external_metadata_links eml
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SET series_name = sm_canonical.name
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FROM series_metadata sm_canonical
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JOIN series_metadata sm_dup
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ON sm_dup.library_id = sm_canonical.library_id
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AND sm_dup.name = sm_canonical.original_name
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WHERE eml.library_id = sm_canonical.library_id
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AND eml.series_name = sm_dup.name
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AND sm_canonical.original_name IS NOT NULL
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AND NOT EXISTS (
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SELECT 1 FROM external_metadata_links eml2
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WHERE eml2.library_id = eml.library_id
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AND eml2.series_name = sm_canonical.name
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AND eml2.provider = eml.provider
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);
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-- 3. Update anilist_series_links (skip if a row for the canonical name already exists)
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UPDATE anilist_series_links asl
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SET series_name = sm_canonical.name
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FROM series_metadata sm_canonical
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JOIN series_metadata sm_dup
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ON sm_dup.library_id = sm_canonical.library_id
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AND sm_dup.name = sm_canonical.original_name
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WHERE asl.library_id = sm_canonical.library_id
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AND asl.series_name = sm_dup.name
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AND sm_canonical.original_name IS NOT NULL
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AND NOT EXISTS (
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SELECT 1 FROM anilist_series_links asl2
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WHERE asl2.library_id = asl.library_id
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AND asl2.series_name = sm_canonical.name
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AND asl2.provider = asl.provider
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);
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-- 4. Delete duplicate series_metadata rows
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DELETE FROM series_metadata sm_dup
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USING series_metadata sm_canonical
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WHERE sm_canonical.library_id = sm_dup.library_id
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AND sm_canonical.original_name = sm_dup.name
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AND sm_canonical.original_name IS NOT NULL;
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