title: Cassandra - CqlEngine - using collection
body: <p>I want to know how I can work with collection in cqlengine
  I can insert value to list but just one value so I can't append some value to my list
  I want to do this:
  In CQL3:    </p>
  
  <pre><code>UPDATE users
  SET top_places = [ 'the shire' ] + top_places WHERE user_id = 'frodo';
  </code></pre>
  
  <p>In CqlEngine:</p>
  
  <pre><code>connection.setup(['127.0.0.1:9160'])
  TestModel.create(id=1,field1 = [2])
  </code></pre>
  
  <p>this code will add 2 to my list but when I insert new value it replace by old value in list.</p>
  
  <p>The only help in Cqlengine :
    <a href="https://cqlengine.readthedocs.org/en/latest/topics/columns.html#collection-type-columns" rel="nofollow">https://cqlengine.readthedocs.org/en/latest/topics/columns.html#collection-type-columns</a></p>
  
  <p>And I want to know that how I can Read collection field by cqlengine.
  Is it an dictionary in my django project? how I can use it?!!</p>
  
  <p>Please help.
  Thanks</p>