Laravel使用笔记 —— migration

在使用 php artisan make:migration 创建migration时,可用 --path 指定创建migration文件的路径，

如果在执行的 php artisan migrate 命令，出现找不到对应class，

可以用 php artisan clear-compiled 和 php artisan optimize 命令 移除编译过的类文件和优化，

命令详细的参数可以通过 php artisan help [command] 命令来查看。

在migration中创建表以及数据库相关的，使用到原生的sql脚本时，可以用调用DB类中的unprepared方法实现：

 <?php

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

 class CreateItemTempTable extends Migration
 {
     /**
      * Run the migrations.
      *
      * @return void
      */
     public function up()
     {
         Schema::create('item_temp', function (Blueprint $table) {
             $table->engine = 'InnoDB';
             $table->charset = 'utf8';
             $table->collation = 'utf8_general_ci';

             $table->string('o_id',50)->notNull()->comment('订单编号');
             $table->string('outer_oi_id',50)->default(null)->comment('子订单号');
             $table->string('sku_id')->notNull()->comment('商家SKU');
             $table->string('name',100)->default(null)->comment('商品名称');
             $table->decimal('amount',12,2)->default(0.00)->comment('应付金额');
             $table->decimal('base_price',12,2)->default(0.00)->comment('基本价（拍下价格）');
             $table->decimal('price',12,2)->default(0.00)->comment('');
             $table->string('properties_value',100)->default(null)->comment('属性');
             $table->integer('qty')->default(0)->comment('购买数量');
             $table->string('raw_so_id',50)->default(null)->comment('');
             $table->string('refund_id',50)->default(null)->comment('退货ID');
             $table->integer('refund_qty')->default(0)->comment('退货数量');
             $table->string('refund_status',40)->default(null)->comment('退货状态');
             $table->string('shop_sku_id')->default(null)->comment('网站对应的自定义SKU编号');

         });

         DB::unprepared('
             CREATE TRIGGER `sync_to_item_table`
             BEFORE INSERT
             ON `item_temp` FOR EACH ROW
             BEGIN
                 IF NOT EXISTS(SELECT id FROM `item` WHERE o_id = new.o_id AND sku_id = new.sku_id ) THEN
                     INSERT INTO `item`(o_id,outer_oi_id,sku_id,name,amount,base_price,price,properties_value,qty,raw_so_id,refund_id,refund_qty,refund_status,shop_sku_id)
                     VALUES(new.o_id,new.outer_oi_id,new.sku_id,new.name,new.amount,new.base_price,new.price,new.properties_value,new.qty,new.raw_so_id,new.refund_id,new.refund_qty,new.refund_status,new.shop_sku_id);
                 ELSE
                     UPDATE `item` SET
                     outer_oi_id = new.outer_oi_id,
                     name = new.name,
                     amount = new.amount,
                     base_price = new.base_price,
                     price = new.price,
                     properties_value = new.properties_value,
                     qty = new.qty,
                     raw_so_id = new.raw_so_id,
                     refund_id = new.refund_id,
                     refund_qty = new.refund_qty,
                     refund_status = new.refund_status,
                     shop_sku_id = new.shop_sku_id
                     WHERE o_id = new.o_id AND sku_id = new.sku_id;
                 END IF;
             END
         ');

         DB::unprepared('
             CREATE EVENT IF NOT EXISTS `clear_item_temp`
             ON SCHEDULE
             EVERY 1 DAY
             DO TRUNCATE `item_temp`
         ');
     }

     /**
      * Reverse the migrations.
      *
      * @return void
      */
     public function down()
     {
         Schema::drop('item_temp');
         DB::unprepared('DROP TRIGGER IF EXISTS `sync_to_item_table`');
         DB::unprepared('DROP EVENT IF EXISTS `clear_item_temp`');

     }
 }