Наследование: extends AdminPageFramework_FieldType_checkbox
 /**
  * Returns the output of the field type.
  */
 public function getField($aField)
 {
     $_sOutput = '';
     // Post type check boxes.
     $_aField = $this->_getPostTypeFieldArguments($aField);
     $_sOutput .= $this->getFieldOutput($_aField);
     // Taxonomy term check-boxes
     $_aField = $this->_getTaxonomyFieldArguments($aField);
     $_sOutput .= parent::getField($_aField);
     // Remove the repeatable button place holders embedded with the parent methods.
     $_sOutput = str_replace("<div class='repeatable-field-buttons'></div>", '', $_sOutput);
     return "<div class='repeatable-field-buttons'></div>" . $_sOutput;
 }