woocommerce/includes/wc-attribute-functions.php

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<?php
/**
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* WooCommerce Attribute Functions
*
* @author WooThemes
* @category Core
* @package WooCommerce/Functions
* @version 2.1.0
*/
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly
}
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/**
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* Gets text attributes from a string.
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*
* @since 2.4
* @return array
*/
function wc_get_text_attributes( $raw_attributes ) {
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return array_map( 'trim', explode( WC_DELIMITER, html_entity_decode( $raw_attributes, ENT_QUOTES, get_bloginfo( 'charset' ) ) ) );
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}
/**
* Get attribute taxonomies.
*
* @return array of objects
*/
function wc_get_attribute_taxonomies() {
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if ( false === ( $attribute_taxonomies = get_transient( 'wc_attribute_taxonomies' ) ) ) {
global $wpdb;
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$attribute_taxonomies = $wpdb->get_results( "SELECT * FROM " . $wpdb->prefix . "woocommerce_attribute_taxonomies order by attribute_name ASC;" );
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set_transient( 'wc_attribute_taxonomies', $attribute_taxonomies );
}
return (array) array_filter( apply_filters( 'woocommerce_attribute_taxonomies', $attribute_taxonomies ) );
}
/**
* Get a product attribute name.
*
* @param string $attribute_name Attribute name.
* @return string
*/
function wc_attribute_taxonomy_name( $attribute_name ) {
return 'pa_' . wc_sanitize_taxonomy_name( $attribute_name );
}
/**
* Get the attribute name used when storing values in post meta.
*
* @param string $attribute_name Attribute name.
* @since 2.6.0
* @return string
*/
function wc_variation_attribute_name( $attribute_name ) {
return 'attribute_' . sanitize_title( $attribute_name );
}
/**
* Get a product attribute name by ID.
*
* @since 2.4.0
* @param int $attribute_id Attribute ID.
* @return string Return an empty string if attribute doesn't exist.
*/
function wc_attribute_taxonomy_name_by_id( $attribute_id ) {
global $wpdb;
$attribute_name = $wpdb->get_var( $wpdb->prepare( "
SELECT attribute_name
FROM {$wpdb->prefix}woocommerce_attribute_taxonomies
WHERE attribute_id = %d
", $attribute_id ) );
if ( $attribute_name && ! is_wp_error( $attribute_name ) ) {
return wc_attribute_taxonomy_name( $attribute_name );
}
return '';
}
/**
* Get a product attribute ID by name.
*
* @since 2.6.0
* @param string $name Attribute name.
* @return int
*/
function wc_attribute_taxonomy_id_by_name( $name ) {
$name = str_replace( 'pa_', '', $name );
$taxonomies = wp_list_pluck( wc_get_attribute_taxonomies(), 'attribute_id', 'attribute_name' );
return isset( $taxonomies[ $name ] ) ? (int) $taxonomies[ $name ] : 0;
}
/**
* Get a product attributes label.
*
* @param string $name
* @param object $product object Optional
* @return string
*/
function wc_attribute_label( $name, $product = '' ) {
global $wpdb;
if ( taxonomy_is_product_attribute( $name ) ) {
$name = wc_sanitize_taxonomy_name( str_replace( 'pa_', '', $name ) );
$all_labels = wp_list_pluck( wc_get_attribute_taxonomies(), 'attribute_label', 'attribute_name' );
$label = isset( $all_labels[ $name ] ) ? $all_labels[ $name ] : $name;
} elseif ( $product && ( $attributes = $product->get_attributes() ) && isset( $attributes[ sanitize_title( $name ) ]['name'] ) ) {
// Attempt to get label from product, as entered by the user
$label = $attributes[ sanitize_title( $name ) ]['name'];
} else {
$label = str_replace( '-', ' ', $name );
}
return apply_filters( 'woocommerce_attribute_label', $label, $name, $product );
}
/**
* Get a product attributes orderby setting.
*
* @param mixed $name
* @return string
*/
function wc_attribute_orderby( $name ) {
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global $wc_product_attributes, $wpdb;
$name = str_replace( 'pa_', '', sanitize_title( $name ) );
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if ( isset( $wc_product_attributes[ 'pa_' . $name ] ) ) {
$orderby = $wc_product_attributes[ 'pa_' . $name ]->attribute_orderby;
} else {
$orderby = $wpdb->get_var( $wpdb->prepare( "SELECT attribute_orderby FROM " . $wpdb->prefix . "woocommerce_attribute_taxonomies WHERE attribute_name = %s;", $name ) );
}
return apply_filters( 'woocommerce_attribute_orderby', $orderby, $name );
}
/**
* Get an array of product attribute taxonomies.
*
* @return array
*/
function wc_get_attribute_taxonomy_names() {
$taxonomy_names = array();
$attribute_taxonomies = wc_get_attribute_taxonomies();
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if ( ! empty( $attribute_taxonomies ) ) {
foreach ( $attribute_taxonomies as $tax ) {
$taxonomy_names[] = wc_attribute_taxonomy_name( $tax->attribute_name );
}
}
return $taxonomy_names;
}
/**
* Get attribute types.
*
* @since 2.4.0
* @return array
*/
function wc_get_attribute_types() {
return (array) apply_filters( 'product_attributes_type_selector', array(
'select' => __( 'Select', 'woocommerce' ),
'text' => __( 'Text', 'woocommerce' )
) );
}
/**
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* Check if attribute name is reserved.
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* https://codex.wordpress.org/Function_Reference/register_taxonomy#Reserved_Terms.
*
* @since 2.4.0
* @param string $attribute_name
* @return bool
*/
function wc_check_if_attribute_name_is_reserved( $attribute_name ) {
// Forbidden attribute names
$reserved_terms = array(
'attachment', 'attachment_id', 'author', 'author_name', 'calendar', 'cat', 'category', 'category__and',
'category__in', 'category__not_in', 'category_name', 'comments_per_page', 'comments_popup', 'cpage', 'day',
'debug', 'error', 'exact', 'feed', 'hour', 'link_category', 'm', 'minute', 'monthnum', 'more', 'name',
'nav_menu', 'nopaging', 'offset', 'order', 'orderby', 'p', 'page', 'page_id', 'paged', 'pagename', 'pb', 'perm',
'post', 'post__in', 'post__not_in', 'post_format', 'post_mime_type', 'post_status', 'post_tag', 'post_type',
'posts', 'posts_per_archive_page', 'posts_per_page', 'preview', 'robots', 's', 'search', 'second', 'sentence',
'showposts', 'static', 'subpost', 'subpost_id', 'tag', 'tag__and', 'tag__in', 'tag__not_in', 'tag_id',
'tag_slug__and', 'tag_slug__in', 'taxonomy', 'tb', 'term', 'type', 'w', 'withcomments', 'withoutcomments', 'year',
);
return in_array( $attribute_name, $reserved_terms );
}