abstract-wc-product-importer.php
<?php
/**
* Abstract Product importer
*
* @package WooCommerce\Import
* @version 3.1.0
*/
use Automattic\WooCommerce\Utilities\NumberUtil;
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Include dependencies.
*/
if ( ! class_exists( 'WC_Importer_Interface', false ) ) {
include_once WC_ABSPATH . 'includes/interfaces/class-wc-importer-interface.php';
}
/**
* WC_Product_Importer Class.
*/
abstract class WC_Product_Importer implements WC_Importer_Interface {
/**
* CSV file.
*
* @var string
*/
protected $file = '';
/**
* The file position after the last read.
*
* @var int
*/
protected $file_position = 0;
/**
* Importer parameters.
*
* @var array
*/
protected $params = array();
/**
* Raw keys - CSV raw headers.
*
* @var array
*/
protected $raw_keys = array();
/**
* Mapped keys - CSV headers.
*
* @var array
*/
protected $mapped_keys = array();
/**
* Raw data.
*
* @var array
*/
protected $raw_data = array();
/**
* Raw data.
*
* @var array
*/
protected $file_positions = array();
/**
* Parsed data.
*
* @var array
*/
protected $parsed_data = array();
/**
* Start time of current import.
*
* (default value: 0)
*
* @var int
*/
protected $start_time = 0;
/**
* Get file raw headers.
*
* @return array
*/
public function get_raw_keys() {
return $this->raw_keys;
}
/**
* Get file mapped headers.
*
* @return array
*/
public function get_mapped_keys() {
return ! empty( $this->mapped_keys ) ? $this->mapped_keys : $this->raw_keys;
}
/**
* Get raw data.
*
* @return array
*/
public function get_raw_data() {
return $this->raw_data;
}
/**
* Get parsed data.
*
* @return array
*/
public function get_parsed_data() {
/**
* Filter product importer parsed data.
*
* @param array $parsed_data Parsed data.
* @param WC_Product_Importer $importer Importer instance.
*/
return apply_filters( 'woocommerce_product_importer_parsed_data', $this->parsed_data, $this );
}
/**
* Get importer parameters.
*
* @return array
*/
public function get_params() {
return $this->params;
}
/**
* Get file pointer position from the last read.
*
* @return int
*/
public function get_file_position() {
return $this->file_position;
}
/**
* Get file pointer position as a percentage of file size.
*
* @return int
*/
public function get_percent_complete() {
$size = filesize( $this->file );
if ( ! $size ) {
return 0;
}
return absint( min( floor( ( $this->file_position / $size ) * 100 ), 100 ) );
}
/**
* Prepare a single product for create or update.
*
* @param array $data Item data.
* @return WC_Product|WP_Error
*/
protected function get_product_object( $data ) {
$id = isset( $data['id'] ) ? absint( $data['id'] ) : 0;
// Type is the most important part here because we need to be using the correct class and methods.
if ( isset( $data['type'] ) ) {
if ( ! array_key_exists( $data['type'], WC_Admin_Exporters::get_product_types() ) ) {
return new WP_Error( 'woocommerce_product_importer_invalid_type', __( 'Invalid product type.', 'woocommerce' ), array( 'status' => 401 ) );
}
try {
// Prevent getting "variation_invalid_id" error message from Variation Data Store.
if ( 'variation' === $data['type'] ) {
$id = wp_update_post(
array(
'ID' => $id,
'post_type' => 'product_variation',
)
);
}
$product = wc_get_product_object( $data['type'], $id );
} catch ( WC_Data_Exception $e ) {
return new WP_Error( 'woocommerce_product_csv_importer_' . $e->getErrorCode(), $e->getMessage(), array( 'status' => 401 ) );
}
} elseif ( ! empty( $data['id'] ) ) {
$product = wc_get_product( $id );
if ( ! $product ) {
return new WP_Error(
'woocommerce_product_csv_importer_invalid_id',
/* translators: %d: product ID */
sprintf( __( 'Invalid product ID %d.', 'woocommerce' ), $id ),
array(
'id' => $id,
'status' => 401,
)
);
}
} else {
$product = wc_get_product_object( 'simple', $id );
}
return apply_filters( 'woocommerce_product_import_get_product_object', $product, $data );
}
/**
* Process a single item and save.
*
* @throws Exception If item cannot be processed.
* @param array $data Raw CSV data.
* @return array|WP_Error
*/
protected function process_item( $data ) {
try {
do_action( 'woocommerce_product_import_before_process_item', $data );
$data = apply_filters( 'woocommerce_product_import_process_item_data', $data );
// Get product ID from SKU if created during the importation.
if ( empty( $data['id'] ) && ! empty( $data['sku'] ) ) {
$product_id = wc_get_product_id_by_sku( $data['sku'] );
if ( $product_id ) {
$data['id'] = $product_id;
}
}
$object = $this->get_product_object( $data );
$updating = false;
if ( is_wp_error( $object ) ) {
return $object;
}
if ( $object->get_id() && 'importing' !== $object->get_status() ) {
$updating = true;
}
if ( 'external' === $object->get_type() ) {
unset( $data['manage_stock'], $data['stock_status'], $data['backorders'], $data['low_stock_amount'] );
}
$is_variation = false;
if ( 'variation' === $object->get_type() ) {
if ( isset( $data['status'] ) && -1 === $data['status'] ) {
$data['status'] = 0; // Variations cannot be drafts - set to private.
}
$is_variation = true;
}
if ( 'importing' === $object->get_status() ) {
$object->set_status( 'publish' );
$object->set_slug( '' );
}
$result = $object->set_props( array_diff_key( $data, array_flip( array( 'meta_data', 'raw_image_id', 'raw_gallery_image_ids', 'raw_attributes' ) ) ) );
if ( is_wp_error( $result ) ) {
throw new Exception( $result->get_error_message() );
}
if ( 'variation' === $object->get_type() ) {
$this->set_variation_data( $object, $data );
} else {
$this->set_product_data( $object, $data );
}
$this->set_image_data( $object, $data );
$this->set_meta_data( $object, $data );
$object = apply_filters( 'woocommerce_product_import_pre_insert_product_object', $object, $data );
$object->save();
do_action( 'woocommerce_product_import_inserted_product_object', $object, $data );
return array(
'id' => $object->get_id(),
'updated' => $updating,
'is_variation' => $is_variation,
);
} catch ( Exception $e ) {
return new WP_Error( 'woocommerce_product_importer_error', $e->getMessage(), array( 'status' => $e->getCode() ) );
}
}
/**
* Convert raw image URLs to IDs and set.
*
* @param WC_Product $product Product instance.
* @param array $data Item data.
*/
protected function set_image_data( &$product, $data ) {
// Image URLs need converting to IDs before inserting.
if ( isset( $data['raw_image_id'] ) ) {
$attachment_id = $this->get_attachment_id_from_url( $data['raw_image_id'], $product->get_id() );
$product->set_image_id( $attachment_id );
wc_product_attach_featured_image( $attachment_id, $product );
}
// Gallery image URLs need converting to IDs before inserting.
if ( isset( $data['raw_gallery_image_ids'] ) ) {
$gallery_image_ids = array();
foreach ( $data['raw_gallery_image_ids'] as $image_id ) {
$gallery_image_ids[] = $this->get_attachment_id_from_url( $image_id, $product->get_id() );
}
$product->set_gallery_image_ids( $gallery_image_ids );
}
}
/**
* Append meta data.
*
* @param WC_Product $product Product instance.
* @param array $data Item data.
*/
protected function set_meta_data( &$product, $data ) {
if ( isset( $data['meta_data'] ) ) {
foreach ( $data['meta_data'] as $meta ) {
$product->update_meta_data( $meta['key'], $meta['value'] );
}
}
}
/**
* Set product data.
*
* @param WC_Product $product Product instance.
* @param array $data Item data.
* @throws Exception If data cannot be set.
*/
protected function set_product_data( &$product, $data ) {
if ( isset( $data['raw_attributes'] ) ) {
$attributes = array();
$default_attributes = array();
$existing_attributes = $product->get_attributes();
foreach ( $data['raw_attributes'] as $position => $attribute ) {
$attribute_id = 0;
// Get ID if is a global attribute.
if ( ! empty( $attribute['taxonomy'] ) ) {
$attribute_id = $this->get_attribute_taxonomy_id( $attribute['name'] );
}
// Set attribute visibility.
if ( isset( $attribute['visible'] ) ) {
$is_visible = $attribute['visible'];
} else {
$is_visible = 1;
}
// Get name.
$attribute_name = $attribute_id ? wc_attribute_taxonomy_name_by_id( $attribute_id ) : $attribute['name'];
// Set if is a variation attribute based on existing attributes if possible so updates via CSV do not change this.
$is_variation = 0;
if ( $existing_attributes ) {
foreach ( $existing_attributes as $existing_attribute ) {
if ( $existing_attribute->get_name() === $attribute_name ) {
$is_variation = $existing_attribute->get_variation();
break;
}
}
}
if ( $attribute_id ) {
if ( isset( $attribute['value'] ) ) {
$options = array_map( 'wc_sanitize_term_text_based', $attribute['value'] );
$options = array_filter( $options, 'strlen' );
} else {
$options = array();
}
// Check for default attributes and set "is_variation".
if ( ! empty( $attribute['default'] ) && in_array( $attribute['default'], $options, true ) ) {
$default_term = get_term_by( 'name', $attribute['default'], $attribute_name );
if ( $default_term && ! is_wp_error( $default_term ) ) {
$default = $default_term->slug;
} else {
$default = sanitize_title( $attribute['default'] );
}
$default_attributes[ $attribute_name ] = $default;
$is_variation = 1;
}
if ( ! empty( $options ) ) {
$attribute_object = new WC_Product_Attribute();
$attribute_object->set_id( $attribute_id );
$attribute_object->set_name( $attribute_name );
$attribute_object->set_options( $options );
$attribute_object->set_position( $position );
$attribute_object->set_visible( $is_visible );
$attribute_object->set_variation( $is_variation );
$attributes[] = $attribute_object;
}
} elseif ( isset( $attribute['value'] ) ) {
// Check for default attributes and set "is_variation".
if ( ! empty( $attribute['default'] ) && in_array( $attribute['default'], $attribute['value'], true ) ) {
$default_attributes[ sanitize_title( $attribute['name'] ) ] = $attribute['default'];
$is_variation = 1;
}
$attribute_object = new WC_Product_Attribute();
$attribute_object->set_name( $attribute['name'] );
$attribute_object->set_options( $attribute['value'] );
$attribute_object->set_position( $position );
$attribute_object->set_visible( $is_visible );
$attribute_object->set_variation( $is_variation );
$attributes[] = $attribute_object;
}
}
$product->set_attributes( $attributes );
// Set variable default attributes.
if ( $product->is_type( 'variable' ) ) {
$product->set_default_attributes( $default_attributes );
}
}
}
/**
* Set variation data.
*
* @param WC_Product $variation Product instance.
* @param array $data Item data.
* @return WC_Product|WP_Error
* @throws Exception If data cannot be set.
*/
protected function set_variation_data( &$variation, $data ) {
$parent = false;
// Check if parent exist.
if ( isset( $data['parent_id'] ) ) {
$parent = wc_get_product( $data['parent_id'] );
if ( $parent ) {
$variation->set_parent_id( $parent->get_id() );
}
}
// Stop if parent does not exists.
if ( ! $parent ) {
return new WP_Error( 'woocommerce_product_importer_missing_variation_parent_id', __( 'Variation cannot be imported: Missing parent ID or parent does not exist yet.', 'woocommerce' ), array( 'status' => 401 ) );
}
// Stop if parent is a product variation.
if ( $parent->is_type( 'variation' ) ) {
return new WP_Error( 'woocommerce_product_importer_parent_set_as_variation', __( 'Variation cannot be imported: Parent product cannot be a product variation', 'woocommerce' ), array( 'status' => 401 ) );
}
if ( isset( $data['raw_attributes'] ) ) {
$attributes = array();
$parent_attributes = $this->get_variation_parent_attributes( $data['raw_attributes'], $parent );
foreach ( $data['raw_attributes'] as $attribute ) {
$attribute_id = 0;
// Get ID if is a global attribute.
if ( ! empty( $attribute['taxonomy'] ) ) {
$attribute_id = $this->get_attribute_taxonomy_id( $attribute['name'] );
}
if ( $attribute_id ) {
$attribute_name = wc_attribute_taxonomy_name_by_id( $attribute_id );
} else {
$attribute_name = sanitize_title( $attribute['name'] );
}
if ( ! isset( $parent_attributes[ $attribute_name ] ) || ! $parent_attributes[ $attribute_name ]->get_variation() ) {
continue;
}
$attribute_key = sanitize_title( $parent_attributes[ $attribute_name ]->get_name() );
$attribute_value = isset( $attribute['value'] ) ? current( $attribute['value'] ) : '';
if ( $parent_attributes[ $attribute_name ]->is_taxonomy() ) {
// If dealing with a taxonomy, we need to get the slug from the name posted to the API.
$term = get_term_by( 'name', $attribute_value, $attribute_name );
if ( $term && ! is_wp_error( $term ) ) {
$attribute_value = $term->slug;
} else {
$attribute_value = sanitize_title( $attribute_value );
}
}
$attributes[ $attribute_key ] = $attribute_value;
}
$variation->set_attributes( $attributes );
}
}
/**
* Get variation parent attributes and set "is_variation".
*
* @param array $attributes Attributes list.
* @param WC_Product $parent Parent product data.
* @return array
*/
protected function get_variation_parent_attributes( $attributes, $parent ) {
$parent_attributes = $parent->get_attributes();
$require_save = false;
foreach ( $attributes as $attribute ) {
$attribute_id = 0;
// Get ID if is a global attribute.
if ( ! empty( $attribute['taxonomy'] ) ) {
$attribute_id = $this->get_attribute_taxonomy_id( $attribute['name'] );
}
if ( $attribute_id ) {
$attribute_name = wc_attribute_taxonomy_name_by_id( $attribute_id );
} else {
$attribute_name = sanitize_title( $attribute['name'] );
}
// Check if attribute handle variations.
if ( isset( $parent_attributes[ $attribute_name ] ) && ! $parent_attributes[ $attribute_name ]->get_variation() ) {
// Re-create the attribute to CRUD save and generate again.
$parent_attributes[ $attribute_name ] = clone $parent_attributes[ $attribute_name ];
$parent_attributes[ $attribute_name ]->set_variation( 1 );
$require_save = true;
}
}
// Save variation attributes.
if ( $require_save ) {
$parent->set_attributes( array_values( $parent_attributes ) );
$parent->save();
}
return $parent_attributes;
}
/**
* Get attachment ID.
*
* @param string $url Attachment URL.
* @param int $product_id Product ID.
* @return int
* @throws Exception If attachment cannot be loaded.
*/
public function get_attachment_id_from_url( $url, $product_id ) {
if ( empty( $url ) ) {
return 0;
}
$id = 0;
$upload_dir = wp_upload_dir( null, false );
$base_url = $upload_dir['baseurl'] . '/';
// Check first if attachment is inside the WordPress uploads directory, or we're given a filename only.
if ( false !== strpos( $url, $base_url ) || false === strpos( $url, '://' ) ) {
// Search for yyyy/mm/slug.extension or slug.extension - remove the base URL.
$file = str_replace( $base_url, '', $url );
$args = array(
'post_type' => 'attachment',
'post_status' => 'any',
'fields' => 'ids',
'meta_query' => array( // @codingStandardsIgnoreLine.
'relation' => 'OR',
array(
'key' => '_wp_attached_file',
'value' => '^' . $file,
'compare' => 'REGEXP',
),
array(
'key' => '_wp_attached_file',
'value' => '/' . $file,
'compare' => 'LIKE',
),
array(
'key' => '_wc_attachment_source',
'value' => '/' . $file,
'compare' => 'LIKE',
),
),
);
} else {
// This is an external URL, so compare to source.
$args = array(
'post_type' => 'attachment',
'post_status' => 'any',
'fields' => 'ids',
'meta_query' => array( // @codingStandardsIgnoreLine.
array(
'value' => $url,
'key' => '_wc_attachment_source',
),
),
);
}
$ids = get_posts( $args ); // @codingStandardsIgnoreLine.
if ( $ids ) {
$id = current( $ids );
}
// Upload if attachment does not exists.
if ( ! $id && stristr( $url, '://' ) ) {
$upload = wc_rest_upload_image_from_url( $url );
if ( is_wp_error( $upload ) ) {
throw new Exception( $upload->get_error_message(), 400 );
}
$id = wc_rest_set_uploaded_image_as_attachment( $upload, $product_id );
if ( ! wp_attachment_is_image( $id ) ) {
/* translators: %s: image URL */
throw new Exception( sprintf( __( 'Not able to attach "%s".', 'woocommerce' ), $url ), 400 );
}
// Save attachment source for future reference.
update_post_meta( $id, '_wc_attachment_source', $url );
}
if ( ! $id ) {
/* translators: %s: image URL */
throw new Exception( sprintf( __( 'Unable to use image "%s".', 'woocommerce' ), $url ), 400 );
}
return $id;
}
/**
* Get attribute taxonomy ID from the imported data.
* If does not exists register a new attribute.
*
* @param string $raw_name Attribute name.
* @return int
* @throws Exception If taxonomy cannot be loaded.
*/
public function get_attribute_taxonomy_id( $raw_name ) {
global $wpdb, $wc_product_attributes;
// These are exported as labels, so convert the label to a name if possible first.
$attribute_labels = wp_list_pluck( wc_get_attribute_taxonomies(), 'attribute_label', 'attribute_name' );
$attribute_name = array_search( $raw_name, $attribute_labels, true );
if ( ! $attribute_name ) {
$attribute_name = wc_sanitize_taxonomy_name( $raw_name );
}
$attribute_id = wc_attribute_taxonomy_id_by_name( $attribute_name );
// Get the ID from the name.
if ( $attribute_id ) {
return $attribute_id;
}
// If the attribute does not exist, create it.
$attribute_id = wc_create_attribute(
array(
'name' => $raw_name,
'slug' => $attribute_name,
'type' => 'select',
'order_by' => 'menu_order',
'has_archives' => false,
)
);
if ( is_wp_error( $attribute_id ) ) {
throw new Exception( $attribute_id->get_error_message(), 400 );
}
// Register as taxonomy while importing.
$taxonomy_name = wc_attribute_taxonomy_name( $attribute_name );
register_taxonomy(
$taxonomy_name,
apply_filters( 'woocommerce_taxonomy_objects_' . $taxonomy_name, array( 'product' ) ),
apply_filters(
'woocommerce_taxonomy_args_' . $taxonomy_name,
array(
'labels' => array(
'name' => $raw_name,
),
'hierarchical' => true,
'show_ui' => false,
'query_var' => true,
'rewrite' => false,
)
)
);
// Set product attributes global.
$wc_product_attributes = array();
foreach ( wc_get_attribute_taxonomies() as $taxonomy ) {
$wc_product_attributes[ wc_attribute_taxonomy_name( $taxonomy->attribute_name ) ] = $taxonomy;
}
return $attribute_id;
}
/**
* Memory exceeded
*
* Ensures the batch process never exceeds 90%
* of the maximum WordPress memory.
*
* @return bool
*/
protected function memory_exceeded() {
$memory_limit = $this->get_memory_limit() * 0.9; // 90% of max memory
$current_memory = memory_get_usage( true );
$return = false;
if ( $current_memory >= $memory_limit ) {
$return = true;
}
return apply_filters( 'woocommerce_product_importer_memory_exceeded', $return );
}
/**
* Get memory limit
*
* @return int
*/
protected function get_memory_limit() {
if ( function_exists( 'ini_get' ) ) {
$memory_limit = ini_get( 'memory_limit' );
} else {
// Sensible default.
$memory_limit = '128M';
}
if ( ! $memory_limit || -1 === intval( $memory_limit ) ) {
// Unlimited, set to 32GB.
$memory_limit = '32000M';
}
return wp_convert_hr_to_bytes( $memory_limit );
}
/**
* Time exceeded.
*
* Ensures the batch never exceeds a sensible time limit.
* A timeout limit of 30s is common on shared hosting.
*
* @return bool
*/
protected function time_exceeded() {
$finish = $this->start_time + apply_filters( 'woocommerce_product_importer_default_time_limit', 20 ); // 20 seconds
$return = false;
if ( time() >= $finish ) {
$return = true;
}
return apply_filters( 'woocommerce_product_importer_time_exceeded', $return );
}
/**
* Explode CSV cell values using commas by default, and handling escaped
* separators.
*
* @since 3.2.0
* @param string $value Value to explode.
* @param string $separator Separator separating each value. Defaults to comma.
* @return array
*/
protected function explode_values( $value, $separator = ',' ) {
$value = str_replace( '\\,', '::separator::', $value );
$values = explode( $separator, $value );
$values = array_map( array( $this, 'explode_values_formatter' ), $values );
return $values;
}
/**
* Remove formatting and trim each value.
*
* @since 3.2.0
* @param string $value Value to format.
* @return string
*/
protected function explode_values_formatter( $value ) {
return trim( str_replace( '::separator::', ',', $value ) );
}
/**
* The exporter prepends a ' to escape fields that start with =, +, - or @.
* Remove the prepended ' character preceding those characters.
*
* @since 3.5.2
* @param string $value A string that may or may not have been escaped with '.
* @return string
*/
protected function unescape_data( $value ) {
$active_content_triggers = array( "'=", "'+", "'-", "'@" );
if ( in_array( mb_substr( $value, 0, 2 ), $active_content_triggers, true ) ) {
$value = mb_substr( $value, 1 );
}
return $value;
}
}
