title: TYPO3 Extbase extend existing extension to use the model of own extension?
body: <p>I'm trying to extend the extension (news) with three extra Date (timestamp) fields and want to call these in my fluidtemplate of (news).</p>
  
  <p>I have wired up everything so far that i can see my extra fields in backend without selecting an extratype - i had modiefied ext_tables.php for that accordingly and can save the data.</p>
  
  <p>Now i was trying to use these field in my news fluidtemplate using the following code in my Partials/List/Item.html - {newsItem.datetime}</p>
  
  <p>I guess that i need to adapt with typoscript that the Model Tx_News_Domain_Model_News is now </p>
  
  <pre><code>config.tx_extbase{
      persistence{
          classes{
              Tx_News_Domain_Model_News {
                  className = MyVendor\MyNews\Domain\Model\New
              }
  
              MyVendor\MyNews\Domain\Model\News {
                  mapping {
                      tableName = tx_news_domain_model_news
                      recordType = Tx_MyNews_News
                  }
              }
          }
      }    
  }
  </code></pre>
  
  <p>But this seem not to work - anybody who got here a solution.</p>