Automatically add the product's gender as a gender attribute from multiple fields with defaults and normalize the gender name. [datafeedr][dfrpswc]

add_gender_attribute-05.php

<?php

/**
 * Add the product's gender as a gender attribute for this product.
 *
 * The attribute "Gender" with a slug of "gender"
 * must already exist here:
 * WordPress Admin Area > Products > Attributes.
 *
 * @param array|string $value The current value of the $attribute for this $post.
 * @param string $attribute The slug of the attribute. Examples: pa_size or pa_shoe-size
 * @param array $post An array of post data including ID, post_title, post_status, etc...
 * @param array $product An array of product data returned from the Datafeedr API.
 * @param array $set A post array for this Product Set with an array key of postmeta containing all post meta data.
 * @param string $action The action the Product Set is performing. Value are either "insert" or "update".
 *
 * @return array|string The updated attribute's value.
 */
add_filter( 'dfrpswc_filter_attribute_value', function ( $value, $attribute, $post, $product, $set, $action ) {

	if ( $attribute !== 'pa_gender' ) {
		return $value;
	}

	if ( isset( $product['gender'] ) ) {
		return mycode_get_gender( $product['gender'], $product['gender'] );
	}

	if ( isset( $product['extratexttwo'] ) ) {
		return mycode_get_gender( $product['extratexttwo'], $product['extratexttwo'] );
	}

	if ( isset( $product['name'] ) ) {
		return mycode_get_gender( $product['name'] );
	}

	return $value;

}, 20, 6 );

/**
 * A function to normalize gender attribute names.
 *
 * This returns a normalized value of a term based on a supplied
 * array of mappings of a key (desired word) mapped to an array of
 * keywords (undesired words).
 *
 * @param string $field The value to normalize.
 * @param string $default Optional. What to return if the $field value doesn't have a "normalized" value. Default: ''
 *
 * @return string Normalized attribute value.
 */
function mycode_get_gender( $field, $default = '' ) {

	$map = [];

	// ++++++++++ Begin Editing Here ++++++++++

	// Use 'Mens' as attribute name if product gender is 'men' or 'mens' or 'male' or 'males' or 'man' or 'mans'.
	$map['Mens'] = [ 'men', 'mens', 'male', 'males', 'man', 'mans' ];

	// Use 'Womens' as attribute name if product gender is 'women' or 'woman' or 'womens' or 'womans' or 'female' or 'females'.
	$map['Womens'] = [ 'women', 'woman', 'womens', 'womans', 'female', 'females' ];

	// Use 'Unisex' as attribute name if product gender is 'unisex' or 'uni-sex'.
	$map['Unisex'] = [ 'unisex', 'uni-sex' ];

	// ++++++++++ Stop Editing Here ++++++++++

	$terms = [];

	foreach ( $map as $key => $keywords ) {

		if ( preg_match( '/\b' . preg_quote( $key, '/' ) . '\b/iu', $field ) ) {
			$terms[] = $key;
		}

		foreach ( $keywords as $keyword ) {
			if ( preg_match( '/\b' . preg_quote( $keyword, '/' ) . '\b/iu', $field ) ) {
				$terms[] = $key;
			}
		}
	}

	if ( ! empty( $terms ) ) {
		return implode( WC_DELIMITER, array_unique( $terms ) );
	}

	return $default;
}