to upload file.
*/
class RWMB_File_Field extends RWMB_Field {
/**
* Enqueue scripts and styles
*/
public static function admin_enqueue_scripts() {
wp_enqueue_style( 'rwmb-file', RWMB_CSS_URL . 'file.css', array(), RWMB_VER );
wp_enqueue_script( 'rwmb-file', RWMB_JS_URL . 'file.js', array( 'jquery' ), RWMB_VER, true );
self::localize_script( 'rwmb-file', 'rwmbFile', array(
'maxFileUploadsSingle' => esc_html__( 'You may only upload maximum %d file', 'brunch-lite' ),
'maxFileUploadsPlural' => esc_html__( 'You may only upload maximum %d files', 'brunch-lite' ),
) );
}
/**
* Add custom actions
*/
public static function add_actions() {
add_action( 'post_edit_form_tag', array( __CLASS__, 'post_edit_form_tag' ) );
add_action( 'wp_ajax_rwmb_delete_file', array( __CLASS__, 'wp_ajax_delete_file' ) );
add_action( 'wp_ajax_rwmb_reorder_files', array( __CLASS__, 'wp_ajax_reorder_files' ) );
}
/**
* Add data encoding type for file uploading
*/
public static function post_edit_form_tag() {
echo ' enctype="multipart/form-data"';
}
/**
* Ajax callback for reordering images
*/
public static function wp_ajax_reorder_files() {
$post_id = (int) filter_input( INPUT_POST, 'post_id', FILTER_SANITIZE_NUMBER_INT );
$field_id = (string) filter_input( INPUT_POST, 'field_id' );
$order = (string) filter_input( INPUT_POST, 'order' );
check_ajax_referer( "rwmb-reorder-files_{$field_id}" );
parse_str( $order, $items );
delete_post_meta( $post_id, $field_id );
foreach ( $items['item'] as $item ) {
add_post_meta( $post_id, $field_id, $item, false );
}
wp_send_json_success();
}
/**
* Ajax callback for deleting files.
* Modified from a function used by "Verve Meta Boxes" plugin
*
* @link http://goo.gl/LzYSq
*/
public static function wp_ajax_delete_file() {
$post_id = (int) filter_input( INPUT_POST, 'post_id', FILTER_SANITIZE_NUMBER_INT );
$field_id = (string) filter_input( INPUT_POST, 'field_id' );
$attachment_id = (int) filter_input( INPUT_POST, 'attachment_id', FILTER_SANITIZE_NUMBER_INT );
$force_delete = (int) filter_input( INPUT_POST, 'force_delete', FILTER_SANITIZE_NUMBER_INT );
check_ajax_referer( "rwmb-delete-file_{$field_id}" );
delete_post_meta( $post_id, $field_id, $attachment_id );
$success = $force_delete ? wp_delete_attachment( $attachment_id ) : true;
if ( $success ) {
wp_send_json_success();
}
wp_send_json_error( esc_html__( 'Error: Cannot delete file', 'brunch-lite' ) );
}
/**
* Get field HTML
*
* @param mixed $meta
* @param array $field
*
* @return string
*/
public static function html( $meta, $field ) {
$i18n_title = apply_filters( 'rwmb_file_upload_string', _x( 'Upload Files', 'file upload', 'brunch-lite' ), $field );
$i18n_more = apply_filters( 'rwmb_file_add_string', _x( '+ Add new file', 'file upload', 'brunch-lite' ), $field );
// Uploaded files
$html = self::get_uploaded_files( $meta, $field );
$classes = 'new-files';
if ( ! empty( $field['max_file_uploads'] ) && count( $meta ) >= (int) $field['max_file_uploads'] ) {
$classes .= ' hidden';
}
// Show form upload
$html .= sprintf(
'',
$classes,
$i18n_title,
$field['id'],
$i18n_more
);
return $html;
}
/**
* Get HTML for uploaded files.
*
* @param array $files List of uploaded files
* @param array $field Field parameters
* @return string
*/
protected static function get_uploaded_files( $files, $field ) {
$reorder_nonce = wp_create_nonce( "rwmb-reorder-files_{$field['id']}" );
$delete_nonce = wp_create_nonce( "rwmb-delete-file_{$field['id']}" );
$classes = 'rwmb-uploaded';
if ( count( $files ) <= 0 ) {
$classes .= ' hidden';
}
foreach ( (array) $files as $k => $file ) {
$files[ $k ] = self::call( $field, 'file_html', $file );
}
return sprintf(
'',
$classes,
$field['id'],
$delete_nonce,
$reorder_nonce,
$field['force_delete'] ? 1 : 0,
$field['max_file_uploads'],
$field['mime_type'],
implode( '', $files )
);
}
/**
* Get HTML for uploaded file.
*
* @param int $file Attachment (file) ID
* @return string
*/
protected static function file_html( $file ) {
$i18n_delete = apply_filters( 'rwmb_file_delete_string', _x( 'Delete', 'file upload', 'brunch-lite' ) );
$i18n_edit = apply_filters( 'rwmb_file_edit_string', _x( 'Edit', 'file upload', 'brunch-lite' ) );
$mime_type = get_post_mime_type( $file );
return sprintf(
'
%s
',
$file,
wp_get_attachment_image( $file, array( 60, 60 ), true ),
wp_get_attachment_url( $file ),
get_the_title( $file ),
$mime_type,
get_edit_post_link( $file ),
$i18n_edit,
$file,
$i18n_delete
);
}
/**
* Get meta values to save
*
* @param mixed $new
* @param mixed $old
* @param int $post_id
* @param array $field
*
* @return array|mixed
*/
public static function value( $new, $old, $post_id, $field ) {
if ( empty( $_FILES[ $field['id'] ] ) ) {
return $new;
}
$new = array();
$files = self::transform( $_FILES[ $field['id'] ] );
foreach ( $files as $file ) {
$new[] = self::upload( $file, $post_id );
}
return array_filter( array_unique( array_merge( (array) $old, $new ) ) );
}
/**
* Handle upload file.
*
* @param array $file
* @param int $post Post parent ID
* @return int Attachment ID on success, false on failure.
*/
protected static function upload( $file, $post ) {
$file = wp_handle_upload( $file, array( 'test_form' => false ) );
if ( ! isset( $file['file'] ) ) {
return false;
}
$attachment = wp_insert_attachment( array(
'post_mime_type' => $file['type'],
'guid' => $file['url'],
'post_parent' => $post,
'post_title' => preg_replace( '/\.[^.]+$/', '', basename( $file['file'] ) ),
'post_content' => '',
), $file['file'], $post );
if ( is_wp_error( $attachment ) || ! $attachment ) {
return false;
}
wp_update_attachment_metadata( $attachment, wp_generate_attachment_metadata( $attachment, $file['file'] ) );
return $attachment;
}
/**
* Transform $_FILES from $_FILES['field']['key']['index'] to $_FILES['field']['index']['key']
*
* @param array $files
* @return array
*/
protected static function transform( $files ) {
$output = array();
foreach ( $files as $key => $list ) {
foreach ( $list as $index => $value ) {
$output[ $index ][ $key ] = $value;
}
}
return $output;
}
/**
* Normalize parameters for field
*
* @param array $field
* @return array
*/
public static function normalize( $field ) {
$field = parent::normalize( $field );
$field = wp_parse_args( $field, array(
'std' => array(),
'force_delete' => false,
'max_file_uploads' => 0,
'mime_type' => '',
) );
$field['multiple'] = true;
return $field;
}
/**
* Get the field value. Return meaningful info of the files.
*
* @param array $field Field parameters
* @param array $args Not used for this field
* @param int|null $post_id Post ID. null for current post. Optional.
*
* @return mixed Full info of uploaded files
*/
public static function get_value( $field, $args = array(), $post_id = null ) {
$value = parent::get_value( $field, $args, $post_id );
if ( ! $field['clone'] ) {
$value = self::call( 'files_info', $field, $value, $args );
} else {
$return = array();
foreach ( $value as $subvalue ) {
$return[] = self::call( 'files_info', $field, $subvalue, $args );
}
$value = $return;
}
if ( isset( $args['limit'] ) ) {
$value = array_slice( $value, 0, intval( $args['limit'] ) );
}
return $value;
}
/**
* Get uploaded files information
*
* @param array $field Field parameter
* @param array $files Files IDs
* @param array $args Additional arguments (for image size)
* @return array
*/
public static function files_info( $field, $files, $args ) {
$return = array();
foreach ( (array) $files as $file ) {
if ( $info = self::call( $field, 'file_info', $file, $args ) ) {
$return[ $file ] = $info;
}
}
return $return;
}
/**
* Get uploaded file information
*
* @param int $file Attachment file ID (post ID). Required.
* @param array $args Array of arguments (for size).
*
* @return array|bool False if file not found. Array of (id, name, path, url) on success
*/
public static function file_info( $file, $args = array() ) {
if ( ! $path = get_attached_file( $file ) ) {
return false;
}
return wp_parse_args( array(
'ID' => $file,
'name' => basename( $path ),
'path' => $path,
'url' => wp_get_attachment_url( $file ),
'title' => get_the_title( $file ),
), wp_get_attachment_metadata( $file ) );
}
/**
* Format value for the helper functions.
*
* @param array $field Field parameter
* @param string|array $value The field meta value
* @return string
*/
public static function format_value( $field, $value ) {
if ( ! $field['clone'] ) {
return self::call( 'format_single_value', $field, $value );
}
$output = '';
foreach ( $value as $subvalue ) {
$output .= '- ' . self::call( 'format_single_value', $field, $subvalue ) . '
';
}
$output .= '
';
return $output;
}
/**
* Format a single value for the helper functions.
*
* @param array $field Field parameter
* @param array $value The value
* @return string
*/
public static function format_single_value( $field, $value ) {
$output = '';
foreach ( $value as $file ) {
$output .= sprintf( '- %s
', $file['url'], $file['title'] );
}
$output .= '
';
return $output;
}
}