61 lines
1.8 KiB
SQL
61 lines
1.8 KiB
SQL
PRAGMA journal_mode = WAL;
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CREATE TABLE media(
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id INTEGER PRIMARY KEY,
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storage_id TEXT (64) NOT NULL UNIQUE,
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filename TEXT (256) NOT NULL,
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content_type TEXT (256),
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upload_datetime TEXT (32) DEFAULT CURRENT_TIMESTAMP
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);
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CREATE TABLE kind(
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id TEXT (32) PRIMARY KEY,
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name TEXT (256) NOT NULL UNIQUE
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) WITHOUT ROWID;
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CREATE TABLE tag(
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id INTEGER PRIMARY KEY,
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name TEXT (256) NOT NULL,
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kind_id TEXT (32) REFERENCES kind(id) ON UPDATE CASCADE,
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display TEXT (289) AS (concat_ws(':', kind_id, name)) STORED,
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UNIQUE (name, kind_id)
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);
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CREATE INDEX tag_name_idx ON tag(name);
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CREATE UNIQUE INDEX tag_name_kind_id_idx ON tag(name, kind_id);
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CREATE UNIQUE INDEX tag_display_idx ON tag(display);
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CREATE TABLE media_tag(
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media_id INTEGER NOT NULL,
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tag_id INTEGER NOT NULL,
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FOREIGN KEY (media_id) REFERENCES media(id) ON DELETE CASCADE,
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FOREIGN KEY (tag_id) REFERENCES tag(id) ON DELETE CASCADE,
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PRIMARY KEY (media_id, tag_id)
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);
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CREATE INDEX media_tag_media_id_idx ON media_tag(media_id);
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CREATE INDEX media_tag_tag_id_idx ON media_tag(tag_id);
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CREATE VIEW tag_count_view AS SELECT
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tag.id AS id,
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tag.name AS name,
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tag.kind_id AS kind_id,
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tag.display AS display,
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COUNT(media_tag.tag_id) AS count
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FROM tag
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INNER JOIN media_tag ON media_tag.tag_id = tag.id
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LEFT JOIN kind ON kind.id = tag.kind_id
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GROUP BY tag.id;
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CREATE VIEW tagged_media_view AS SELECT
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media.id AS media_id,
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media.storage_id AS media_storage_id,
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media.filename AS media_filename,
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media.content_type AS media_content_type,
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media.upload_datetime AS media_upload_datetime,
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tag_count_view.id AS tag_id,
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tag_count_view.name AS tag_name,
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tag_count_view.kind_id AS tag_kind_id,
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tag_count_view.display AS tag_display,
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tag_count_view.count AS tag_count
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FROM media_tag
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INNER JOIN media ON media.id = media_id
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INNER JOIN tag_count_view ON tag_count_view.id = tag_id;
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