/**
* Extract column data from a row while trying
* to keep everything in the same order as the
* columns. Generally, don't need to call this
* method unless you are micro managing an export.
*
* @param mixed $row Can be an object, array or html_table_row (if this, then ensure proper cell ordering!)
* @return array
*/
public function extract_data($row)
{
if (is_object($row)) {
$row = (array) $row;
}
$data = array();
$columns = $this->get_columns(true);
// Try our best with html_table_row
if ($row instanceof html_table_row) {
foreach ($row->cells as $cell) {
if ($cell instanceof html_table_cell) {
$data[] = $cell->text;
} else {
$data[] = $cell;
}
}
} else {
foreach ($columns as $key => $column) {
if ($this->export instanceof mr_file_export and $this->export->is_exporting() and !$column->get_config()->export) {
unset($columns[$key]);
continue;
}
$cell = $column->get_cell($row);
if ($cell instanceof html_table_cell) {
$data[] = $cell->text;
} else {
$data[] = $cell;
}
}
}
// Make sure we return even number of columns
if (count($data) < count($columns)) {
$data = array_pad($data, count($columns), '');
}
return $data;
}
/**
* Determine if the report is currently exporting
*
* This method must be called after _init() because the
* export is setup during _init().
*
* @return boolean
*/
public function is_exporting()
{
if ($this->export instanceof mr_file_export and $this->export->is_exporting()) {
return true;
}
return false;
}
/**
* Set the export instance
*
* This will set the limitfrom and limitnum
* appropriately for exporting
*
* @param mr_file_export $export The export plugin
* @return mr_html_paging
*/
public function set_export($export)
{
if ($export->is_exporting()) {
// Start from the beginning
$this->page = 0;
// Grab as many rows as the exporter can handle
$this->perpage = $export->instance()->max_rows();
}
return $this;
}
