title: How do I save a collection with another name with mongoengine?
body: <p>I have a mongoengine schema like this:</p>
  
  <pre><code>class Page(Document):
      title = StringField(max_length=200, required=True)
      date_modified = DateTimeField(default=datetime.datetime.now)
  
      meta = {"db_alias":"page", "collection":"page_detail"}
  </code></pre>
  
  <p>as you can see, my collection will be save with name "page_detail".</p>
  
  <p>so my problem is this:</p>
  
  <p>I have data in my database already, but some record is useless, so I need to filter them. Now, I want to filter them and save the filtered data in another collection with this schema, so I have any choice?</p>