购物车增加items_all_count 字段

migrations/mysqldb/m190303_033900_fecshop_tables.php

+<?php
+
+use yii\db\Migration;
+
+/**
+ * Class m190303_033900_fecshop_tables
+ */
+class m190303_033900_fecshop_tables extends Migration
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function safeUp()
+    {
+        $arr = [
+            "
+                ALTER TABLE  `sales_flat_cart` CHANGE  `items_count`  `items_count` INT( 10 ) NULL DEFAULT  '0' COMMENT  '购物车中active状态产品的总个数，默认为0个'
+            ",
+            "
+                ALTER TABLE  `sales_flat_cart` ADD  `items_all_count` INT( 10 ) NULL DEFAULT  '0' COMMENT  '购物车中全部产品的总个数，默认为0个' AFTER  `items_count`
+            "
+        ];
+
+        foreach ($arr as $sql) {
+            $this->execute($sql);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function safeDown()
+    {
+        echo "m190303_033900_fecshop_tables cannot be reverted.\n";
+
+        return false;
+    }
+
+    /*
+    // Use up()/down() to run migration code without a transaction.
+    public function up()
+    {
+
+    }
+
+    public function down()
+    {
+        echo "m190303_033900_fecshop_tables cannot be reverted.\n";
+
+        return false;
+    }
+    */
+}