wp_restore_image
函数
wp_restore_image ( $post_id )
- 参数
-
-
(int)
$post_id
Attachment post ID.- Required: 是
-
(int)
- 返回值
-
- (stdClass) Image restoration message object.
- 定义位置
-
-
wp-admin/includes/image-edit.php
, line 736
-
wp-admin/includes/image-edit.php
- 引入
- 2.9.0
- 弃用
- –
Restores the metadata for a given attachment.
function wp_restore_image( $post_id ) {
$meta = wp_get_attachment_metadata( $post_id );
$file = get_attached_file( $post_id );
$backup_sizes = get_post_meta( $post_id, '_wp_attachment_backup_sizes', true );
$old_backup_sizes = $backup_sizes;
$restored = false;
$msg = new stdClass;
if ( ! is_array( $backup_sizes ) ) {
$msg->error = __( 'Cannot load image metadata.' );
return $msg;
}
$parts = pathinfo( $file );
$suffix = time() . rand( 100, 999 );
$default_sizes = get_intermediate_image_sizes();
if ( isset( $backup_sizes['full-orig'] ) && is_array( $backup_sizes['full-orig'] ) ) {
$data = $backup_sizes['full-orig'];
if ( $parts['basename'] != $data['file'] ) {
if ( defined( 'IMAGE_EDIT_OVERWRITE' ) && IMAGE_EDIT_OVERWRITE ) {
// Delete only if it's an edited image.
if ( preg_match( '/-e[0-9]{13}./', $parts['basename'] ) ) {
wp_delete_file( $file );
}
} elseif ( isset( $meta['width'], $meta['height'] ) ) {
$backup_sizes[ "full-$suffix" ] = array(
'width' => $meta['width'],
'height' => $meta['height'],
'file' => $parts['basename'],
);
}
}
$restored_file = path_join( $parts['dirname'], $data['file'] );
$restored = update_attached_file( $post_id, $restored_file );
$meta['file'] = _wp_relative_upload_path( $restored_file );
$meta['width'] = $data['width'];
$meta['height'] = $data['height'];
}
foreach ( $default_sizes as $default_size ) {
if ( isset( $backup_sizes[ "$default_size-orig" ] ) ) {
$data = $backup_sizes[ "$default_size-orig" ];
if ( isset( $meta['sizes'][ $default_size ] ) && $meta['sizes'][ $default_size ]['file'] != $data['file'] ) {
if ( defined( 'IMAGE_EDIT_OVERWRITE' ) && IMAGE_EDIT_OVERWRITE ) {
// Delete only if it's an edited image.
if ( preg_match( '/-e[0-9]{13}-/', $meta['sizes'][ $default_size ]['file'] ) ) {
$delete_file = path_join( $parts['dirname'], $meta['sizes'][ $default_size ]['file'] );
wp_delete_file( $delete_file );
}
} else {
$backup_sizes[ "$default_size-{$suffix}" ] = $meta['sizes'][ $default_size ];
}
}
$meta['sizes'][ $default_size ] = $data;
} else {
unset( $meta['sizes'][ $default_size ] );
}
}
if ( ! wp_update_attachment_metadata( $post_id, $meta ) ||
( $old_backup_sizes !== $backup_sizes && ! update_post_meta( $post_id, '_wp_attachment_backup_sizes', $backup_sizes ) ) ) {
$msg->error = __( 'Cannot save image metadata.' );
return $msg;
}
if ( ! $restored ) {
$msg->error = __( 'Image metadata is inconsistent.' );
} else {
$msg->msg = __( 'Image restored successfully.' );
}
return $msg;
}
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