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nvrl
1e0f2f8792
media.entry_id modelled ownership as one entry per file, but link_to_entry reassigns it on every save. Embedding the same image in a second entry therefore moved the claim, and deleting that second entry deleted the file out from under the first — a broken image in the entry and a 404 on its share link. A join table replaces the column. Deleting an entry now removes only the files no other entry embeds, and link_to_entry runs in a transaction so an entry is never briefly attached to nothing while its share link is being read.
19 lines
756 B
SQL
19 lines
756 B
SQL
-- `media.entry_id` claimed a file for exactly one entry. Embedding the same
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-- file in a second entry silently moved the claim, and deleting that second
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-- entry then deleted a file the first one still displayed. A join table lets a
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-- file belong to as many entries as embed it.
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CREATE TABLE entry_media (
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entry_id INTEGER NOT NULL REFERENCES entries (id) ON DELETE CASCADE,
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media_id TEXT NOT NULL REFERENCES media (id) ON DELETE CASCADE,
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PRIMARY KEY (entry_id, media_id)
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) WITHOUT ROWID;
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CREATE INDEX idx_entry_media_media_id ON entry_media (media_id);
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INSERT INTO entry_media (entry_id, media_id)
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SELECT entry_id, id FROM media WHERE entry_id IS NOT NULL;
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DROP INDEX idx_media_entry_id;
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ALTER TABLE media DROP COLUMN entry_id;
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