public function step()
{
if (!is_numeric($this->args['form_id'])) {
wp_die(__('Invalid form id', 'ninja-forms'));
}
$this->args['filename'] = wp_kses_post($this->args['filename']);
$exported_subs = get_user_option(get_current_user_id(), 'nf_download_all_subs_ids');
if (!is_array($exported_subs)) {
$exported_subs = array();
}
$previous_name = get_user_option(get_current_user_id(), 'nf_download_all_subs_filename');
if ($previous_name) {
$this->args['filename'] = $previous_name;
}
$args = array('posts_per_page' => 250, 'paged' => $this->step, 'post_type' => 'nf_sub', 'meta_query' => array(array('key' => '_form_id', 'value' => $this->args['form_id'])));
$subs_results = get_posts($args);
if (is_array($subs_results) && !empty($subs_results)) {
$upload_dir = wp_upload_dir();
$file_path = trailingslashit($upload_dir['path']) . $this->args['filename'] . '.csv';
$myfile = fopen($file_path, 'a') or die('Unable to open file!');
$x = 0;
$export = '';
foreach ($subs_results as $sub) {
$sub_export = NF_Database_Models_Submission::export($this->args['form_id'], array($sub->ID), TRUE);
if ($x > 0 || $this->step > 1) {
$sub_export = substr($sub_export, strpos($sub_export, "\n") + 1);
}
if (!in_array($sub->ID, $exported_subs)) {
$export .= $sub_export;
$exported_subs[] = $sub->ID;
}
$x++;
}
fwrite($myfile, $export);
fclose($myfile);
}
update_user_option(get_current_user_id(), 'nf_download_all_subs_ids', $exported_subs);
}
/**
* Export Submissions
*
* A wrapper for the Submission Model export method.
*
* @param array $sub_ids
* @param bool|FALSE $return
* @return string
*/
public function export_subs(array $sub_ids = array(), $return = FALSE)
{
$form_id = $this->_object->get_id();
return NF_Database_Models_Submission::export($form_id, $sub_ids, $return);
}
