Add article comment migration

resources/migrations/m190829_093604_article_comment.php

@@ -0,0 +1,34 @@
+<?php
+use App\Db\Migration;
+
+/**
+ * Class m190829_093604_article_comment
+ */
+class m190829_093604_article_comment extends Migration
+{
+    private $tableName = '{{%article_comment}}';
+
+    public function safeUp()
+    {
+        $this->createTable($this->tableName, [
+            'id' => $this->bigPrimaryKey(),
+            'reply_to' => $this->bigInteger()->notNull()->defaultValue(0)->comment('Reply To'),
+            'article_id' => $this->integer()->notNull()->comment('Article ID'),
+            'user_id' => $this->integer()->notNull()->comment('User ID'),
+            'content' => $this->text()->notNull()->comment('Content'),
+            'is_deleted' => $this->softDelete(),
+            'create_time' => $this->createTimestamp(),
+            'update_time' => $this->updateTimestamp(),
+        ], $this->tableOptions());
+
+        $this->createIndex('article_comment_idx_reply_to', $this->tableName, 'reply_to');
+        $this->createIndex('article_comment_idx_article_id', $this->tableName, 'article_id');
+        $this->createIndex('article_comment_idx_user_id', $this->tableName, 'user_id');
+        $this->createIndex('article_comment_idx_create_time', $this->tableName, 'create_time');
+    }
+
+    public function safeDown()
+    {
+        $this->dropTable($this->tableName);
+    }
+}