Subscription manager

migration/subscription.12.cr

@@ -0,0 +1,31 @@
+class CreateSubscription < MG::Base
+  def up : String
+    # We allow multiple subscriptions for the same manga.
+    # This can be useful for example when you want to download from multiple
+    #   groups.
+    <<-SQL
+    CREATE TABLE subscription (
+      id INTEGER PRIMARY KEY,
+      manga_id INTEGER NOT NULL,
+      language TEXT,
+      group_id INTEGER,
+      min_volume INTEGER,
+      max_volume INTEGER,
+      min_chapter INTEGER,
+      max_chapter INTEGER,
+      last_checked INTEGER NOT NULL,
+      created_at INTEGER NOT NULL,
+      username TEXT NOT NULL,
+      FOREIGN KEY (username) REFERENCES users (username)
+        ON UPDATE CASCADE
+        ON DELETE CASCADE
+    );
+    SQL
+  end
+
+  def down : String
+    <<-SQL
+    DROP TABLE subscription;
+    SQL
+  end
+end