/**
  * Commit changed field data 
  *
  */
 protected function ___processImport()
 {
     $data = $this->session->get('FieldImportData');
     if (!$data) {
         throw new WireException("Invalid import data");
     }
     $numChangedFields = 0;
     $numAddedFields = 0;
     $skipFieldNames = array();
     // iterate through data for each field
     foreach ($data as $name => $fieldData) {
         $name = $this->wire('sanitizer')->fieldName($name);
         if (!$this->input->post("import_field_{$name}")) {
             $skipFieldNames[] = $name;
             unset($data[$name]);
             continue;
         }
         $field = $this->wire('fields')->get($name);
         if (!$field) {
             $new = true;
             $field = new Field();
             $field->name = $name;
         } else {
             $new = false;
         }
         unset($fieldData['id']);
         foreach ($fieldData as $property => $value) {
             if (!in_array($property, $this->input->post("field_{$name}"))) {
                 unset($fieldData[$property]);
             }
         }
         try {
             $changes = $field->setImportData($fieldData);
             foreach ($changes as $key => $info) {
                 $this->message($this->_('Saved:') . " {$name}.{$key} => {$info['new']}");
             }
             $field->save();
             if ($new) {
                 $numAddedFields++;
                 $this->message($this->_('Added field') . ' - ' . $name);
             } else {
                 $numChangedFields++;
                 $this->message($this->_('Modified field') . ' - ' . $name);
             }
         } catch (Exception $e) {
             $this->error($e->getMessage());
         }
         $data[$name] = $fieldData;
     }
     $this->session->set('FieldImportSkipNames', $skipFieldNames);
     $this->session->set('FieldImportData', $data);
     $numSkippedFields = count($skipFieldNames);
     if ($numAddedFields) {
         $this->message(sprintf($this->_n('Added %d field', 'Added %d fields', $numAddedFields), $numAddedFields));
     }
     if ($numChangedFields) {
         $this->message(sprintf($this->_n('Modified %d field', 'Modified %d fields', $numChangedFields), $numChangedFields));
     }
     if ($numSkippedFields) {
         $this->message(sprintf($this->_n('Skipped %d field', 'Skipped %d fields', $numSkippedFields), $numSkippedFields));
     }
     $this->session->redirect("./?verify=1");
 }