add files to project

migrations/m170915_134028_create_subs_table.php

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+<?php
+
+use yii\db\Migration;
+
+/**
+ * Handles the creation of table `subs`.
+ */
+class m170915_134028_create_subs_table extends Migration
+{
+    /**
+     * @inheritdoc
+     */
+    public function up()
+    {
+        $this->createTable('subs', [
+            'id'                        => $this->primaryKey(),
+            'user_id'                   => $this->integer(),
+            'transaction_id'            => $this->bigInteger(),
+            'original_transaction_id'   => $this->bigInteger(),
+            'tm_purchase'               => $this->dateTime(),
+            'tm_expires'                => $this->dateTime()
+        ]);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function down()
+    {
+        $this->dropTable('subs');
+    }
+}