/**
  * @param \Mageplaza\Blog\Model\Post $post
  * @return array
  */
 public function getTopicIds(\Mageplaza\Blog\Model\Post $post)
 {
     $adapter = $this->getConnection();
     $select = $adapter->select()->from($this->postTopicTable, 'topic_id')->where('post_id = ?', (int) $post->getId());
     return $adapter->fetchCol($select);
 }
 /**
  * Add Post id to error message
  *
  * @param \Mageplaza\Blog\Model\Post $post
  * @param string $errorText
  * @return string
  */
 protected function getErrorWithPostId(\Mageplaza\Blog\Model\Post $post, $errorText)
 {
     return '[Post ID: ' . $post->getId() . '] ' . $errorText;
 }