Initial import

migrations/pooru_1_up.sql

@@ -0,0 +1,57 @@
+PRAGMA journal_mode = WAL;
+
+CREATE TABLE media(
+	id INTEGER PRIMARY KEY,
+	storage_id TEXT (64) NOT NULL UNIQUE,
+	filename TEXT (256) NOT NULL,
+	content_type TEXT (256),
+	upload_datetime TEXT (32) DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE TABLE kind(
+	id TEXT (32) PRIMARY KEY,
+	name TEXT (256) NOT NULL UNIQUE
+) WITHOUT ROWID;
+
+CREATE TABLE tag(
+	id INTEGER PRIMARY KEY,
+	name TEXT (256) NOT NULL,
+	kind_id TEXT (32) REFERENCES kind(id) ON UPDATE CASCADE,
+	display TEXT (289) AS (concat_ws(':', kind_id, name)) STORED,
+	UNIQUE (name, kind_id)
+);
+CREATE UNIQUE INDEX tag_display_idx ON tag(display);
+
+CREATE TABLE media_tag(
+	media_id INTEGER NOT NULL,
+	tag_id INTEGER NOT NULL,
+	FOREIGN KEY (media_id) REFERENCES media(id) ON DELETE CASCADE,
+	FOREIGN KEY (tag_id) REFERENCES tag(id) ON DELETE CASCADE,
+	PRIMARY KEY (media_id, tag_id)
+);
+
+CREATE VIEW tag_count_view AS SELECT
+	tag.id AS id,
+	tag.name AS name,
+	tag.kind_id AS kind_id,
+	tag.display AS display,
+	COUNT(media_tag.tag_id) AS count
+FROM tag
+	INNER JOIN media_tag ON media_tag.tag_id = tag.id
+	LEFT JOIN kind ON kind.id = tag.kind_id
+GROUP BY tag.id;
+
+CREATE VIEW tagged_media_view AS SELECT
+	media.id AS media_id,
+	media.storage_id AS media_storage_id,
+	media.filename AS media_filename,
+	media.content_type AS media_content_type,
+	media.upload_datetime AS media_upload_datetime,
+	tag_count_view.id AS tag_id,
+	tag_count_view.name AS tag_name,
+	tag_count_view.kind_id AS tag_kind_id,
+	tag_count_view.display AS tag_display,
+	tag_count_view.count AS tag_count
+FROM media_tag
+	INNER JOIN media ON media.id = media_id
+	INNER JOIN tag_count_view ON tag_count_view.id = tag_id;