title: Use 1:n DeleteActions
body: <p>How is it possible to use DeleteActions for 1:n table-relations?</p>
  
  <p>Example:</p>
  
  <pre><code>Table A ("id")
  ('foo')
  ,('bar')
  ,('blup')
  
  Table B: ("id", "tableAId1", "tableAId2")
  (1, 'foo', 'blup')
  ,(2, 'bar', 'foo')
  </code></pre>
  
  <p>I have two relations on tableB:</p>
  
  <pre><code>TableB:tableAId1 -&gt; TableA:id
  TableB:tableAId2 -&gt; TableA:id
  </code></pre>
  
  <p>Both datasets in table B should be deleted, if 'foo' from table A is deleted. </p>
  
  <p>I tried one delete-Action on table A, refering to table B with cascade-option, resulting in <strong>only dataset 1</strong> in table B was deleted.</p>
  
  <p>I tried two identical delete-Action on table A, refering to table B with cascade-option, resulting in table lock on database.</p>
  
  <p>I know about overwriting <code>delete()</code> method on table A, but this isn't safe if using <code>tableA.doDelete()</code>.</p>