Created
July 30, 2020 03:57
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Gravity Forms - Button to delete file uploads for an entry
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add_filter( 'gform_entry_detail_meta_boxes', 'add_delete_attachment_meta_box', 10, 3 ); | |
function add_delete_attachment_meta_box( $meta_boxes, $entry, $form ) { | |
$my_form_id = 3; | |
if ( $form['id'] == $my_form_id ) { | |
if ( ! isset( $meta_boxes['payment'] ) ) { | |
$meta_boxes['payment'] = array( | |
'title' => esc_html__( 'Delete Attachments', 'gravityforms' ), | |
'callback' => 'meta_box_delete_attachments', | |
'context' => 'side', | |
'callback_args' => array( $entry, $form ), | |
); | |
} | |
} | |
return $meta_boxes; | |
} | |
function meta_box_delete_attachments( $args ) { | |
$html = '<div class="wrap">'; | |
// Check whether the button has been pressed AND also check the nonce | |
if (isset($_POST['delete_attachment_button']) && check_admin_referer('delete_attachment_button_clicked')) { | |
// the button has been pressed AND we've passed the security check | |
delete_these_attachments( $args ); | |
} | |
$html .= '<form action="options-general.php?page=delete-attachment-button-slug" method="post">'; | |
// this is a WordPress security feature - see: https://codex.wordpress.org/WordPress_Nonces | |
wp_nonce_field('delete_attachment_button_clicked'); | |
$html .= '<input type="hidden" value="true" name="delete_attachment_button" />'; | |
submit_button('Delete Attachments'); | |
$html .= '</form>'; | |
$html .= '<p style="color:red;"><strong>WARNING - Make sure you download the attachments before deleting. They will be deleted as soon as you click the button.</strong></p>'; | |
$html .= '</div>'; | |
echo $html; | |
} | |
function delete_these_attachments( $args ) { | |
$form = $args['form']; | |
$entry = $args['entry']; | |
$fileupload_fields = array(); | |
// Find all of the FileUpload fields | |
foreach( $form['fields'] as $field ) { | |
if ($field['type'] == 'fileupload') { | |
array_push($fileupload_fields,$field['id']); | |
} | |
} | |
$wp_dirs = wp_upload_dir(); | |
$delete_count = 0; | |
if ( count($fileupload_fields) > 0 ) { | |
foreach( $fileupload_fields as $field_id ) { | |
$attachment_url = $entry[$field_id]; | |
$attachment_abs = str_ireplace( $wp_dirs['baseurl'], $wp_dirs['basedir'], $attachment_url ); | |
if ( file_exists( $attachment_abs ) ) { | |
if ( unlink($attachment_abs) ) { | |
$delete_count += 1; | |
} | |
} | |
} | |
} | |
echo '<div id="message" class="updated fade"><p>'.$delete_count.' attachments(s) deleted.' . '</p></div>'; | |
?> | |
<?php | |
} |
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