Add 14 new columns to media_items table for comprehensive comic and manga
metadata support, including reading direction fields and universal metadata
that applies to all media formats.
New Columns:
- Reading direction: manga_type (raw ComicInfo.xml field), reading_direction (computed)
- Universal series: series_count, volume (apply to ebooks, audiobooks, comics)
- Publisher info: imprint, age_rating (all formats)
- Comic-specific: story_arc, is_black_and_white, alternate_info, scan_information, summary
- Additional metadata: metadata_notes, community_rating, web_url
Constraints:
- manga_type CHECK: unknown, no, yes, yes_and_right_to_left
- reading_direction CHECK: auto, ltr, rtl, vertical
Indexes (8 new):
- idx_media_items_reading_direction, idx_media_items_manga_type
- idx_media_items_story_arc, idx_media_items_imprint
- idx_media_items_age_rating, idx_media_items_series_count, idx_media_items_volume
- idx_media_items_alternate_info_gin (GIN index for JSONB queries)
Documentation:
- Added COMMENT ON COLUMN for all 14 new fields
- Distinctions between comic-specific and universal fields clearly documented
This supports the ComicInfo.xml v2.0 standard with 29 fields and enables
proper reading direction detection for manga, webtoons, and Western comics.
Part of Phase 1: Database Schema Changes
Implementation: IMPLEMENTATION_PLAN_MERGE_METADATA_READING_DIRECTION.md
john-okeefe
2ffd8e032b