/**
* Return the array with the columns that could be exported
*
* @return array
*/
public function getColumns()
{
$aColumns = $this->_model->getColumns();
$relatedColumns = $this->_getRelatedColumns();
$availableColumns = array();
foreach ($aColumns as $name => $column) {
$availableColumns[] = array('id' => $name, 'name' => $name, 'label' => $this->_model->getAttributeLabel($name));
}
$availableColumns = array_merge($availableColumns, array_values($relatedColumns));
// Get the columnModel columns and the columns that are added through the formatColumns function.
$cm = $this->getColumnModel();
$cm = $this->formatColumns($cm);
$cmCols = $cm->getColumns();
$cmColumns = array();
foreach ($cmCols as $cmCol) {
$cmColumns[] = array('id' => $cmCol->getDataIndex(), 'name' => $cmCol->getDataIndex(), 'label' => $cmCol->getLabel());
}
$availableColumns = array_merge($availableColumns, array_values($cmColumns));
// Remove columns that are not exportable
foreach ($this->notExportableColumns as $notExp) {
foreach ($availableColumns as $key => $ac) {
if (isset($ac['id']) && $ac['id'] === $notExp) {
unset($availableColumns[$key]);
}
}
}
sort($availableColumns);
return $availableColumns;
}
