title: TYPO3 Inline Relational Record Editing (IRRE)
body: <p>I created a new content element which adds a field called <strong>heroslider</strong> to <code>tt_content</code>.
  The TCA looks like this:</p>
  
  <pre><code>'heroslider' =&gt; [
      'config' =&gt; [
              'type'           =&gt; 'inline',
              'allowed'        =&gt; 'tx_ext_domain_model_heroslider_item',
              'foreign_table'  =&gt; 'tx_ext_domain_model_heroslider_item',
              'foreign_field'  =&gt; 'tt_content_uid',
              'foreign_sortby' =&gt; 'sorting',
              'foreign_label'  =&gt; 'header',
              'maxitems'       =&gt; 99,
              'appearance'     =&gt; [
                      'collapseAll'  =&gt; 1,
                      'expandSingle' =&gt; 1,
              ],
      ],
  ],
  </code></pre>
  
  <p>Now when I add a <code>heroslider_item</code> in the BE, it gets stored properly, except for the field <code>tt_content_uid</code>. This fields contains a zero instead of the <code>uid</code> of the content element.</p>
  
  <p>Do you have any idea what I am missing?</p>
  
  <p>Thanks in advance!</p>