implemented the user view type and website sharing

db/mysql/migrations/05_add_website_viewer/migration.sql

@@ -0,0 +1,24 @@
+-- AlterTable
+ALTER TABLE `account` ADD COLUMN `is_viewer` BOOLEAN NOT NULL DEFAULT false;
+
+-- AlterTable
+ALTER TABLE `event_data` DROP PRIMARY KEY,
+    MODIFY `event_data_id` INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,
+    ADD PRIMARY KEY (`event_data_id`);
+
+-- DropTable
+DROP TABLE `_event_old`;
+
+-- CreateTable
+CREATE TABLE `viewerforwebsite` (
+    `user_id` INTEGER UNSIGNED NOT NULL,
+    `website_id` INTEGER UNSIGNED NOT NULL,
+
+    PRIMARY KEY (`user_id`, `website_id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- AddForeignKey
+ALTER TABLE `viewerforwebsite` ADD CONSTRAINT `viewerforwebsite_user_id_fkey` FOREIGN KEY (`user_id`) REFERENCES `account`(`user_id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `viewerforwebsite` ADD CONSTRAINT `viewerforwebsite_website_id_fkey` FOREIGN KEY (`website_id`) REFERENCES `website`(`website_id`) ON DELETE CASCADE ON UPDATE CASCADE;