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File: AnnouncementsMigration.inc.php
<?php

/**
 * @file classes/migration/AnnouncementsMigration.inc.php
 *
 * Copyright (c) 2014-2021 Simon Fraser University
 * Copyright (c) 2000-2021 John Willinsky
 * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
 *
 * @class AnnouncementsMigration
 * @brief Describe database table structures.
 */

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Builder;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Capsule\Manager as Capsule;

class AnnouncementsMigration extends Migration {
	/**
	 * Run the migrations.
	 * @return void
	 */
	public function up() {
		// Announcement types.
		Capsule::schema()->create('announcement_types', function (Blueprint $table) {
			$table->bigInteger('type_id')->autoIncrement();
			$table->smallInteger('assoc_type');
			$table->bigInteger('assoc_id');
			$table->index(['assoc_type', 'assoc_id'], 'announcement_types_assoc');
		});

		// Locale-specific announcement type data
		Capsule::schema()->create('announcement_type_settings', function (Blueprint $table) {
			$table->bigInteger('type_id');
			$table->string('locale', 14)->default('');
			$table->string('setting_name', 255);
			$table->text('setting_value')->nullable();
			$table->string('setting_type', 6);
			$table->index(['type_id'], 'announcement_type_settings_type_id');
			$table->unique(['type_id', 'locale', 'setting_name'], 'announcement_type_settings_pkey');
		});

		// Announcements.
		Capsule::schema()->create('announcements', function (Blueprint $table) {
			$table->bigInteger('announcement_id')->autoIncrement();
			//  NOT NULL not included for upgrade purposes
			$table->smallInteger('assoc_type')->nullable();
			$table->bigInteger('assoc_id');
			$table->bigInteger('type_id')->nullable();
			$table->date('date_expire')->nullable();
			$table->datetime('date_posted');
			$table->index(['assoc_type', 'assoc_id'], 'announcements_assoc');
		});

		// Locale-specific announcement data
		Capsule::schema()->create('announcement_settings', function (Blueprint $table) {
			$table->bigInteger('announcement_id');
			$table->string('locale', 14)->default('');
			$table->string('setting_name', 255);
			$table->text('setting_value')->nullable();
			$table->string('setting_type', 6)->nullable();
			$table->index(['announcement_id'], 'announcement_settings_announcement_id');
			$table->unique(['announcement_id', 'locale', 'setting_name'], 'announcement_settings_pkey');
		});
	}

	/**
	 * Reverse the migration.
	 * @return void
	 */
	public function down() {
		Capsule::schema()->drop('announcement_types');
		Capsule::schema()->drop('announcement_type_settings');
		Capsule::schema()->drop('announcements');
		Capsule::schema()->drop('announcement_settings');
	}
}