/** Edit a map origin statement
  */
 public function editmaporiginAction()
 {
     if ($this->_getParam('id', false)) {
         $form = new OriginForm();
         $form->details->setLegend('Edit an origin term');
         $form->submit->setLabel(self::UPDATE);
         $this->view->form = $form;
         if ($this->getRequest()->isPost() && $form->isValid($this->_request->getPost())) {
             if ($form->isValid($form->getValues())) {
                 $origins = new MapOrigins();
                 $where = array();
                 $where[] = $origins->getAdapter()->quoteInto('id = ?', $this->_getParam('id'));
                 $origins->update($form->getValues(), $where);
                 $this->_redirect($this->_redirectUrl . 'maporigins');
                 $this->_flashMessenger->addMessage('Grid reference origin updated!');
             } else {
                 $form->populate($form->getValues());
             }
         } else {
             $id = (int) $this->_request->getParam('id', 0);
             if ($id > 0) {
                 $origins = new MapOrigins();
                 $origin = $origins->fetchRow('id = ' . $this->_getParam('id'));
                 if (count($origin) != NULL) {
                     $form->populate($origin->toArray());
                 } else {
                     throw new Pas_Exception_Param($this->_nothingFound);
                 }
             }
         }
     } else {
         throw new Pas_Exception_Param($this->_missingParamter);
     }
 }