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wc-add-to-cart-form-shortcode.php
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wc-add-to-cart-form-shortcode.php
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<?php
/**
* Plugin Name: Add to Cart Form Shortcode for WooCommerce
* Plugin URI: https://github.com/helgatheviking/add-to-cart-form-shortcode
* Description: Add [add_to_cart_form] shortcode that display a single product add to cart form.
* Version: 3.1.0
* Author: helgatheviking
* Author URI: https://kathyisawesome.com
* Requires at least: 4.8
* Tested up to: 5.9.0
* WC requires at least: 3.2.0
* WC tested up to: 6.5.0
* License: GNU General Public License v3.0
* License URI: http://www.gnu.org/licenses/gpl-3.0.html
*
* @package Add to Cart Form Shortcode for WooCommerce
*/
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly.
}
if ( ! function_exists( 'kia_add_to_cart_form_features_compatibility' ) ) {
/**
* Declare WooCommerce Features compatibility.
*
* @since 3.1.0
*/
function kia_add_to_cart_form_features_compatibility() {
if ( ! class_exists( 'Automattic\WooCommerce\Utilities\FeaturesUtil' ) ) {
return;
}
// High Performance Order Storage (HPOS) Compatibility
\Automattic\WooCommerce\Utilities\FeaturesUtil::declare_compatibility( 'custom_order_tables', plugin_basename( __FILE__ ), true );
// Cart/Checkout Blocks compatibility.
\Automattic\WooCommerce\Utilities\FeaturesUtil::declare_compatibility( 'cart_checkout_blocks', plugin_basename( __FILE__ ), true );
}
}
add_action( 'before_woocommerce_init', 'kia_add_to_cart_form_features_compatibility' );
if ( ! function_exists( 'kia_add_to_cart_form_shortcode' ) ) {
/**
* Display a single product with single-product/add-to-cart/$product_type.php template.
*
* @param array $atts Attributes.
* @return string
*/
function kia_add_to_cart_form_shortcode( $atts ) {
if ( empty( $atts ) ) {
return '';
}
if ( ! isset( $atts['id'] ) && ! isset( $atts['sku'] ) ) {
return '';
}
$atts = shortcode_atts(
array(
'id' => '',
'sku' => '',
'status' => 'publish',
'show_price' => 'true',
'hide_quantity' => 'false',
'allow_form_action' => 'false',
),
$atts,
'product_add_to_cart_form'
);
$query_args = array(
'posts_per_page' => 1,
'post_type' => 'product',
'post_status' => $atts['status'],
'ignore_sticky_posts' => 1,
'no_found_rows' => 1,
);
if ( ! empty( $atts['sku'] ) ) {
$query_args['meta_query'][] = array(
'key' => '_sku',
'value' => sanitize_text_field( $atts['sku'] ),
'compare' => '=',
);
$query_args['post_type'] = array( 'product', 'product_variation' );
}
if ( ! empty( $atts['id'] ) ) {
$query_args['p'] = absint( $atts['id'] );
}
// Hide quantity input if desired.
if ( 'true' === $atts['hide_quantity'] ) {
add_filter( 'woocommerce_quantity_input_min', 'kia_add_to_cart_form_return_one' );
add_filter( 'woocommerce_quantity_input_max', 'kia_add_to_cart_form_return_one' );
}
// Change form action to avoid redirect.
if ( 'false' === $atts[ 'allow_form_action' ] ) {
add_filter( 'woocommerce_add_to_cart_form_action', '__return_empty_string' );
}
$single_product = new WP_Query( $query_args );
$preselected_id = '0';
// Check if sku is a variation.
if ( ! empty( $atts['sku'] ) && $single_product->have_posts() && 'product_variation' === $single_product->post->post_type ) {
$variation = new WC_Product_Variation( $single_product->post->ID );
$attributes = $variation->get_attributes();
// Set preselected id to be used by JS to provide context.
$preselected_id = $single_product->post->ID;
// Get the parent product object.
$query_args = array(
'posts_per_page' => 1,
'post_type' => 'product',
'post_status' => 'publish',
'ignore_sticky_posts' => 1,
'no_found_rows' => 1,
'p' => $single_product->post->post_parent,
);
$single_product = new WP_Query( $query_args );
?>
<script type="text/javascript">
jQuery( document ).ready( function( $ ) {
var $variations_form = $( '[data-product-page-preselected-id="<?php echo esc_attr( $preselected_id ); ?>"]' ).find( 'form.variations_form' );
<?php foreach ( $attributes as $attr => $value ) { ?>
$variations_form.find( 'select[name="<?php echo esc_attr( $attr ); ?>"]' ).val( '<?php echo esc_js( $value ); ?>' );
<?php } ?>
});
</script>
<?php
}
// For "is_single" to always make load comments_template() for reviews.
$single_product->is_single = true;
ob_start();
global $wp_query, $previous_wp_query;
// Backup query object so following loops think this is a product page.
$previous_wp_query = $wp_query;
// @codingStandardsIgnoreStart
$wp_query = $single_product;
// @codingStandardsIgnoreEnd
wp_enqueue_script( 'wc-single-product' );
while ( $single_product->have_posts() ) {
$single_product->the_post();
?>
<div class="product single-product add_to_cart_form_shortcode" data-product-page-preselected-id="<?php echo esc_attr( $preselected_id ); ?>">
<?php
if ( wc_string_to_bool( $atts['show_price'] ) ) {
woocommerce_template_single_price();
}
?>
<?php woocommerce_template_single_add_to_cart(); ?>
</div>
<?php
}
// Restore $previous_wp_query and reset post data.
// @codingStandardsIgnoreStart
$wp_query = $previous_wp_query;
$previous_wp_query = null;
// @codingStandardsIgnoreEnd
wp_reset_postdata();
// Remove filters.
if ( 'true' === $atts['hide_quantity'] ) {
remove_filter( 'woocommerce_quantity_input_min', 'kia_add_to_cart_form_return_one' );
remove_filter( 'woocommerce_quantity_input_max', 'kia_add_to_cart_form_return_one' );
}
if ( 'false' === $atts[ 'allow_form_action' ] ) {
remove_filter( 'woocommerce_add_to_cart_form_action', '__return_empty_string' );
}
return '<div class="woocommerce">' . ob_get_clean() . '</div>';
}
}
add_shortcode( 'add_to_cart_form', 'kia_add_to_cart_form_shortcode' );
if ( ! function_exists( 'kia_add_to_cart_form_redirect' ) ) {
/**
* Redirect to same page
*
* @return string
*/
function kia_add_to_cart_form_redirect( $url ) {
return get_permalink();
}
}
if ( ! function_exists( 'kia_add_to_cart_form_return_one' ) ) {
/**
* Return integer
*
* @return int
*/
function kia_add_to_cart_form_return_one() {
return 1;
}
}