File Content: helper.php <?php if ( ! defined( 'ABSPATH' ) ) { // Exit if accessed directly. exit; } if ( ! function_exists( 'qi_blocks_get_attachment_id_from_url' ) ) { /** * Function that retrieves attachment id for passed attachment url * * @param string $attachment_url * * @return null|string */ function qi_blocks_get_attachment_id_from_url( $attachment_url ) { global $wpdb; $attachment_id = ''; if ( '' !== $attachment_url ) { // phpcs:ignore WordPress.DB.DirectDatabaseQuery $attachment_id = $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE guid=%s", $attachment_url ) ); // Additional check for undefined reason when guid is not image src. if ( empty( $attachment_id ) ) { $modified_url = substr( $attachment_url, strrpos( $attachment_url, '/' ) + 1 ); // Get attachment id. // phpcs:ignore WordPress.DB.DirectDatabaseQuery $attachment_id = $wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE meta_key='_wp_attached_file' AND meta_value LIKE %s", '%' . $modified_url . '%' ) ); } } return $attachment_id; } } if ( ! function_exists( 'qi_blocks_resize_image' ) ) { /** * Function that generates custom thumbnail for given attachment * * @param int|string $attachment - attachment id or url of image to resize * @param array $custom_size desired - width and height of custom thumbnail * @param bool $crop - whether to crop image or not * * @return array returns array containing img_url, width and height * * @see qi_blocks_get_attachment_id_from_url() * @see get_attached_file() * @see wp_get_attachment_url() * @see wp_get_image_editor() */ function qi_blocks_resize_image( $attachment, $custom_size = array(), $crop = true ) { $return_array = array(); if ( ! empty( $attachment ) ) { if ( is_int( $attachment ) ) { $attachment_id = $attachment; } else { $attachment_id = qi_blocks_get_attachment_id_from_url( $attachment ); } $is_size_set = ! empty( $custom_size ) && isset( $custom_size['width'] ) && isset( $custom_size['height'] ); if ( ! empty( $attachment_id ) && $is_size_set ) { $width = intval( $custom_size['width'] ); $height = intval( $custom_size['height'] ); // Get file path of the attachment. $img_path = get_attached_file( $attachment_id ); // Get attachment url. $img_url = wp_get_attachment_url( $attachment_id ); // Break down img path to array, so we can use its components in building thumbnail path. $img_path_array = pathinfo( $img_path ); // Build thumbnail path. $new_img_path = $img_path_array['dirname'] . '/' . $img_path_array['filename'] . '-' . $width . 'x' . $height . '.' . $img_path_array['extension']; // Build thumbnail url. $new_img_url = str_replace( $img_path_array['filename'], $img_path_array['filename'] . '-' . $width . 'x' . $height, $img_url ); // Check if thumbnail exists by its path. if ( ! file_exists( $new_img_path ) ) { // Get image manipulation object. $image_object = wp_get_image_editor( $img_path ); if ( ! is_wp_error( $image_object ) ) { // Resize image and save it new to path. $image_object->resize( $width, $height, $crop ); $image_object->save( $new_img_path ); // Get sizes of newly created thumbnail. // We don't use $width and $height because those might differ from end result based on $crop parameter. $image_sizes = $image_object->get_size(); $width = $image_sizes['width']; $height = $image_sizes['height']; qi_blocks_update_cropped_images_option( $attachment_id, $width, $height ); } else { return array(); } } // Generate data to be returned. $return_array = array( 'url' => $new_img_url, 'width' => $width, 'height' => $height, ); // Attachment wasn't found in gallery, but it is not empty. } elseif ( '' !== $attachment && $is_size_set ) { $width = intval( $custom_size['width'] ); $height = intval( $custom_size['height'] ); // Generate data to be returned. $return_array = array( 'url' => $attachment, 'width' => $width, 'height' => $height, ); } } return $return_array; } } if ( ! function_exists( 'qi_blocks_update_cropped_images_option' ) ) { function qi_blocks_update_cropped_images_option( $attachment_id, $width, $height ) { $cropped_images = get_option( 'qi_blocks_cropped_images' ); $cropped_images[] = array( 'attachment_id' => $attachment_id, 'width' => $width, 'height' => $height, ); update_option( 'qi_blocks_cropped_images', $cropped_images ); } } Submit