Update the attached image's description, caption & alt text with values from the product. [datafeedr][dfrps]

update-image-meta.php

<?php

/**
 * Update the attached image's description, caption &
 * alt text with values from the product when the image is imported.
 *
 * @param integer $attachment_id Attachment ID of imported image.
 * @param Dfrps_Image_Importer $image_importer
 */
function mycode_update_image_meta( $attachment_id, $image_importer ) {

	$image_id          = $attachment_id;
	$image_description = $image_importer->post->post_content;
	$image_caption     = $image_importer->post->post_excerpt;
	$image_alt_text    = $image_importer->post->post_title;

	/**
	 * Update Image Description (post_content) & Caption (post_excerpt)
	 */
	wp_update_post( array(
		'ID'           => $image_id,
		'post_content' => $image_description,
		'post_excerpt' => $image_caption,
	) );

	/**
	 * Update Image Alt Text
	 */
	update_post_meta( $image_id, '_wp_attachment_image_alt', $image_alt_text );
}

add_action( 'dfrps_image_imported_successfully', 'mycode_update_image_meta', 20, 2 );