Bug倉庫 // 程式日記

/*cmd指令*/
 php artisan make:migration create_posts_table --create=posts

<?php
/*檔案：database/migrations/2017_09_10_152910_create_posts_table.php*/

use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreatePostsTable extends Migration
{

    public function up()
    {
        Schema::create('posts', function (Blueprint $table) {
            $table->increments('id');
            $table->timestamps();
        });
    }

    public function down()
    {
        Schema::dropIfExists('posts');
    }
}

    /*檔案：database/migrations/2017_09_10_152910_create_posts_table.php*/

    public function up()
    {
        Schema::create('posts', function (Blueprint $table) {
            $table->increments('id');
            $table->string('title');
            // ->nullable() //->default() //->unique()
            // 可以空          預設值        不可重複
            $table->text('content');
            $table->timestamps();
        });
    }

/*cmd指令*/
php artisan migrate

/*建立表格SQL*/

CREATE TABLE `posts` (
  `id` int(10) UNSIGNED NOT NULL,
  `title` varchar(191) COLLATE utf8mb4_unicode_ci NOT NULL,
  `content` text COLLATE utf8mb4_unicode_ci NOT NULL,
  `created_at` timestamp NULL DEFAULT NULL,
  `updated_at` timestamp NULL DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

ALTER TABLE `posts`
  ADD PRIMARY KEY (`id`);

ALTER TABLE `posts`
  MODIFY `id` int(10) UNSIGNED NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=2;COMMIT;

/*cmd指令*/
php artisan migrate:rollback

如此將會執行上一個migration裡面的down函式 （預設是刪掉表格）