Gallery URLs (#4114)

* Initial backend changes
* Fix unit tests
* UI changes
* Fix missing URL filters

pkg/sqlite/migrations/51_gallery_urls.up.sql

@@ -0,0 +1,76 @@
+PRAGMA foreign_keys=OFF;
+
+CREATE TABLE `gallery_urls` (
+  `gallery_id` integer NOT NULL,
+  `position` integer NOT NULL,
+  `url` varchar(255) NOT NULL,
+  foreign key(`gallery_id`) references `galleries`(`id`) on delete CASCADE,
+  PRIMARY KEY(`gallery_id`, `position`, `url`)
+);
+
+CREATE INDEX `gallery_urls_url` on `gallery_urls` (`url`);
+
+-- drop url
+CREATE TABLE `galleries_new` (
+  `id` integer not null primary key autoincrement,
+  `folder_id` integer,
+  `title` varchar(255),
+  `date` date,
+  `details` text,
+  `studio_id` integer,
+  `rating` tinyint,
+  `organized` boolean not null default '0',
+  `created_at` datetime not null,
+  `updated_at` datetime not null,
+  foreign key(`studio_id`) references `studios`(`id`) on delete SET NULL,
+  foreign key(`folder_id`) references `folders`(`id`) on delete SET NULL
+);
+
+INSERT INTO `galleries_new`
+  (
+    `id`,
+    `folder_id`,
+    `title`,
+    `date`,
+    `details`,
+    `studio_id`,
+    `rating`,
+    `organized`,
+    `created_at`,
+    `updated_at`
+  )
+  SELECT 
+    `id`,
+    `folder_id`,
+    `title`,
+    `date`,
+    `details`,
+    `studio_id`,
+    `rating`,
+    `organized`,
+    `created_at`,
+    `updated_at`
+  FROM `galleries`;
+
+INSERT INTO `gallery_urls`
+  (
+    `gallery_id`,
+    `position`,
+    `url`
+  )
+  SELECT 
+    `id`,
+    '0',
+    `url`
+  FROM `galleries`
+  WHERE `galleries`.`url` IS NOT NULL AND `galleries`.`url` != '';
+
+DROP INDEX `index_galleries_on_studio_id`;
+DROP INDEX `index_galleries_on_folder_id_unique`;
+DROP TABLE `galleries`;
+ALTER TABLE `galleries_new` rename to `galleries`;
+
+CREATE INDEX `index_galleries_on_studio_id` on `galleries` (`studio_id`);
+CREATE UNIQUE INDEX `index_galleries_on_folder_id_unique` on `galleries` (`folder_id`);
+
+PRAGMA foreign_keys=ON;