feat: make DB IDs not null

migrations/2025-05-04-055045_not_null_ids/up.sql

@@ -0,0 +1,66 @@
+--- magnets
+
+ALTER TABLE magnets
+    RENAME TO magnets_old;
+
+CREATE TABLE magnets
+(
+    id           INTEGER PRIMARY KEY NOT NULL,
+    title        VARCHAR             NOT NULL,
+    submitter    VARCHAR             NOT NULL,
+    subreddit    VARCHAR             NOT NULL,
+    link         VARCHAR             NOT NULL,
+    published_at DATETIME            NOT NULL,
+    imdb_id      VARCHAR
+);
+
+INSERT INTO magnets (id, title, submitter, subreddit, link, published_at, imdb_id)
+SELECT id, title, submitter, subreddit, link, published_at, imdb_id
+FROM magnets_old;
+
+DROP TABLE magnets_old;
+
+CREATE UNIQUE INDEX magnets_unique_link
+    ON magnets (link);
+
+--- bitmagnet_processed
+
+ALTER TABLE bitmagnet_processed
+    RENAME TO bitmagnet_processed_old;
+
+CREATE TABLE bitmagnet_processed
+(
+    id           INTEGER PRIMARY KEY NOT NULL,
+    magnet_id    INTEGER             NOT NULL,
+    processed_at DATETIME            NOT NULL,
+    FOREIGN KEY (magnet_id) REFERENCES magnets (id)
+);
+
+INSERT INTO bitmagnet_processed (id, magnet_id, processed_at)
+SELECT id, magnet_id, processed_at
+FROM bitmagnet_processed_old;
+
+DROP TABLE bitmagnet_processed_old;
+
+CREATE INDEX bitmagnet_processed_magnet_id ON bitmagnet_processed (magnet_id);
+
+--- transmission_processed
+
+ALTER TABLE transmission_processed
+    RENAME TO transmission_processed_old;
+
+CREATE TABLE transmission_processed
+(
+    id           INTEGER PRIMARY KEY NOT NULL,
+    magnet_id    INTEGER             NOT NULL,
+    processed_at DATETIME            NOT NULL,
+    FOREIGN KEY (magnet_id) REFERENCES magnets (id)
+);
+
+INSERT INTO transmission_processed (id, magnet_id, processed_at)
+SELECT id, magnet_id, processed_at
+FROM transmission_processed_old;
+
+DROP TABLE transmission_processed_old;
+
+CREATE INDEX transmission_processed_magnet_id ON transmission_processed (magnet_id);