protected function createControls()
 {
     $this->relation = $this->controller->relation;
     $this->setPostback('modView', 'endEditRelation', array('current' => $this->request->current, 'entity' => $this->request->entity, 'initPanel' => 2));
     $panel = new CaptionedPanelControl($this, 'panel');
     $panel->setCaption('Relation » bearbeiten');
     // Felder festlegen
     $inputName = new InputTextboxControl(null, 'name');
     $inputName->setValue($this->controller->relation->name);
     $inputName->addCssClass('required');
     $selectField = new InputSelectControl(null, 'field');
     foreach ($this->controller->entity->fields as $field) {
         $selectField->addOption($field->name, $field->name);
     }
     $selectField->preSelect($this->controller->relation->field);
     $inputForeignEntity = new InputTextboxControl(null, 'foreignEntity');
     $inputForeignEntity->setValue($this->controller->relation->foreignEntity);
     $inputForeignEntity->addCssClass('required');
     $inputForeignField = new InputTextboxControl(null, 'foreignField');
     $inputForeignField->setValue($this->controller->relation->foreignField);
     $inputForeignField->addCssClass('required');
     $inputJoinCriteria = new InputTextboxControl(null, 'joinCriteria');
     $inputJoinCriteria->setValue($this->controller->relation->joinCriteria);
     $selectJoin = new InputSelectControl(null, 'join');
     $selectJoin->addOption('inner', 'inner')->addOption('left outer', 'left outer')->addOption('right outer', 'right outer')->preSelect($this->controller->relation->join);
     // Felder darstellen
     $edit = new EditControl($panel, 'edit');
     $edit->addRow('Name', $inputName)->addRow('Feld in lokaler Entität', $selectField)->addRow('Fremdentität', $inputForeignEntity)->addRow('Feld in Fremdentität', $inputForeignField)->addRow('Join', $selectJoin)->addRow('On-Bedingung', $inputJoinCriteria)->addRow('Implementierende Klasse', InputTextboxControl::create(null, 'foreignClass')->setValue($this->relation->foreignClass));
     $button = new ButtonControl($panel, 'button');
     $button->setCaption('Speichern')->setIsSubmit('true');
 }