title: TYPO3 realation, new entry to "select" all entries
body: <p>I have an extbase extension, where I have a <strong>model A</strong> with a relation to another <strong>model B</strong>. Model B has a lot of entries, so I dont want to assign every single value by clicking on it. So it would be nice if I would have a possibility to somehow select all entries.</p>
  
  <p>I tried to do this like in the page settings the "Usergroup Accsess Rights" area (<a href="http://docs.typo3.org/typo3cms/TCAReference/Reference/Columns/Select/Index.html#columns-select-examples-multiple" rel="nofollow">http://docs.typo3.org/typo3cms/TCAReference/Reference/Columns/Select/Index.html#columns-select-examples-multiple</a>). To have mixed values (static and dynamic) the field has to be a CSV field. I use an itemsProcFunc, where i build my array and put the static value in. The "All Entries" entry has a -1 id.</p>
  
  <p><strong>BACKEND FORM OF MODEL A</strong></p>
  
  <pre><code> Field of modal A           Model B values
   _______________________    _______________________
  |All Entries            |  | All Entries           |
  |                       |  |-----------------------|
  |                       |  | First                 |
  |                       |  | Second                |
  |                       |  | Third                 |
  |                       |  | Fourth                |
  |                       |  | ...                   |
  |_______________________|  |_______________________|
  </code></pre>
  
  <p><strong>TCA of Model A for the field of Model B relations</strong></p>
  
  <pre><code>$TCA['tx_myext_domain_model_promotion']['columns']['relToB'] = array(
  'exclude' =&gt; 0,
  'label' =&gt; relToB,
  'config' =&gt; array(
      'type' =&gt; 'select',
      'foreign_table' =&gt; 'tx_myext_domain_model_modelB',
      'size' =&gt; 10,
      'autoSizeMax' =&gt; 30,
      'maxitems' =&gt; 9999,
      'multiple' =&gt; 0,
      'itemsProcFunc' =&gt; 'myFunc',
      'exclusiveKeys' =&gt; '-1',
  ),
  );
  </code></pre>
  
  <p>So far so good, this is working now and i get the selected "All Entries" value in my DB. But now the problem is, that the extbase property mapping functionality is broken and I have to write manual SQL everywhere I used this field.</p>
  
  <p>How would you solve this issue? Is there an other way to get the "Select all entries" use case solved?</p>