php - 如何在 Laravel 中使用 php artisan 创建数据库 View 的迁移？

Question

实际上，我已经通过以下步骤使用 PHP Artisan 为 Laravel 创建了一个 sql View 。

第 1 步。运行以下命令:

php artisan make:migration create_overall_report_views

第 2 步。

打开迁移文件并添加以下代码:

class CreateOverallReportView extends Migration 
{
  /**
  * Run the migrations.
  *
  * @return void
  */
  public function up()
  {
    //
    DB::statement("
      CREATE VIEW views_overall_report AS
      (
        SELECT er.user_id as user_id, e.id AS entities_id, 
            c.status_id AS status_id, s.name AS status_name

        FROM `user_roles` er
          LEFT JOIN elists e ON e.id=er.entities_id
          LEFT JOIN `clists` c ON c.id=e.checklists_id
          LEFT JOIN `status` s ON s.id = c.overall_status_id

        WHERE s.slug = 'completed'
          AND c.deleted_at IS NULL
      )
    ");
  }

  /**
  * Reverse the migrations.
  *
  * @return void
  */
  public function down()
  {
    DB::statement('DROP VIEW IF EXISTS views_overall_report');
  }  

}

第 3 步。通过 Laravel 查询调用和运行 SQL View

$items = $DB::table('views_overall_report')
            ->select('status_id', 'status_name',
                $DB::raw('count(entities_id) as counts')
            )
            ->groupBy('status_id')
            ->orderBy('counts' , 'desc')
            ->whereIn('user_id', Auth::user()->id())
            ->get();
print_r($items);

希望对您有所帮助。如果有人有更好的解决方案，请告诉我!!

Answer 1

偶然发现了同样的问题并找到了解决方案@ http://programmingarehard.com/2013/11/10/eloquent_and_views.html/

class CreateCompaniesView extends Migration {    /**     * Run the migrations.     *     * @return void     */    public function up()    {        DB::statement("CREATE VIEW companiesView AS                        SELECT *,                        (                            SELECT GROUP_CONCAT(DISTINCT id SEPARATOR ',')                            FROM people AS p                            WHERE p.company_id = c.id                        ) AS person_ids                        FROM companies AS c");    }    /**     * Reverse the migrations.     *     * @return void     */    public function down()    {        DB::statement("DROP VIEW companiesView");    }}