Create product tab for product change logs

woocommerce-new-product-tab-for-change-logs.php

<?php // For implementation instructions see: https://aceplugins.com/how-to-add-a-code-snippet/

/**
 * Add a custom product tab.
 */
function ace_product_change_log_tab( $tabs ) {
	$tabs['change-log'] = array(
		'label'		=> __( 'Log', 'woocommerce' ),
		'target'	=> 'change-log',
		'class'		=> array(),
		'priority'  => 90,
	);

	return $tabs;
}
add_filter( 'woocommerce_product_data_tabs', 'ace_product_change_log_tab' );


/**
 * Contents of the change log product tab.
 */
function ace_product_change_log_tab_content() {
	global $post;
	$product = wc_get_product( $post );

	remove_filter( 'pre_get_comments', 'ace_hide_product_log_comments' );
	$changes = get_comments( array( 'post_id' => $product->get_id(), 'type' => 'product_log' ) );
	add_filter( 'pre_get_comments', 'ace_hide_product_log_comments' );

	?><div id='change-log' class='panel woocommerce_options_panel hidden'>

		<table class="widefat striped" style="margin: -1px; width: calc(100% + 2px);">
			<tbody><?php
				foreach ( $changes as $change ) :
					?><tr>
						<td>
							<strong><a href="<?php echo esc_url( get_edit_user_link( $change->comment_author_id ) ); ?>"><?php echo wp_kses_post( $change->comment_author ); ?></a></strong><br/>
							<small><?php echo get_comment_date( '', $change->comment_ID ); ?></small>
						</td>
						<td><?php echo wp_kses_post( $change->comment_content ); ?></td>
					</tr><?php
				endforeach;
			?></tbody>
		</table><?php

	?></div><?php

}
add_filter( 'woocommerce_product_data_panels', 'ace_product_change_log_tab_content' ); // WC 2.6 and up