CoCart: Upload image URLs with item to cart.

cocart-upload-images-with-item.php

<?php
/**
 * An example on adding support for uploading images with products to the cart.
 */

add_filter( 'cocart_after_item_added_to_cart', 'upload_image_urls_with_item', 10, 2 );

/**
 * For any image URL set while adding to the cart, upload and store location of uploaded image.
 *
 * @param array           $item_added_to_cart The product added to cart.
 * @param WP_REST_Request $request            The request object.
 */
function upload_image_urls_with_item( $item_added_to_cart, $request ) {
	$upload_images = ! empty( $request['upload_images'] ) ? $request['upload_images'] : array();

	$item_key = $item_added_to_cart['key'];

	$uploaded_images = array();

	foreach ( $upload_images as $key => $url ) {
		$uploaded_image = cocart_upload_image_from_url( esc_url_raw( $url ) );

		if ( is_wp_error( $uploaded_image ) ) {
			throw new CoCart_Data_Exception( 'cocart_uploaded_image_error', $uploaded_image->get_error_message(), 400, array( 'source' => $url ) );
		}

		$uploaded_images[$item_key][basename($uploaded_image['file'])] = $uploaded_image['url'];
	}

	// Store the uploaded images in session under the item key.
	WC()->session->set( 'cocart_uploaded_images', $uploaded_images );
}

add_filter( 'cocart_cart_items', 'return_uploaded_images', 10, 2 );

/**
 * Returns the uploaded images for each item in the cart (if any).
 *
 * @param array $cart_contents Cart contents before modifications.
 * @param int   $item_key      Unique identifier for item in cart.
 *
 * @return array $cart_contents Cart contents after modifications.
 */
function return_uploaded_images( $cart_contents, $item_key ) {
	$uploaded_images = WC()->session->get( 'cocart_uploaded_images' );

	if ( empty( $uploaded_images ) ) {
		return $cart_contents;
	}

	if ( array_key_exists( $item_key, $uploaded_images ) ) {
		$cart_contents[$item_key]['uploaded_images'] = $uploaded_images[$item_key];
	}

	return $cart_contents;
}