Migrate counter values from LikeBtn to WP ULike

wp-ulike.php

<?php

add_action( 'admin_action_migrate_likebtn_to_wp_ulike', 'migrate_likebtn_to_wp_ulike_admin_action' );
function migrate_likebtn_to_wp_ulike_admin_action(){
	global $wpdb;

    // Do your stuff here
	if( empty( $_POST['posts'] ) && empty( $_POST['comments'] ) ){
		wp_die( 'Please select an option!' );
	}


	if( $_POST['posts'] ){
		$posts = $wpdb->get_results( "SELECT post_id  FROM `$wpdb->postmeta` WHERE `meta_key` IN ('Likes', 'Dislikes') GROUP BY post_id" );

		foreach ( $posts as $post_key => $post_value ) {
			$likes       = get_post_meta( $post_value->post_id, 'Likes', true );
			$dislikes    = get_post_meta( $post_value->post_id, 'Dislikes', true );
			$is_distinct = wp_ulike_setting_repo::isDistinct('post');

			if( $likes ){
				wp_ulike_update_meta_counter_value( $post_value->post_id, $likes, 'post', 'like', $is_distinct );
			}
			if( $dislikes ){
				wp_ulike_update_meta_counter_value( $post_value->post_id, $dislikes, 'post', 'dislike', $is_distinct );
			}
		}
	}

	if( $_POST['comments'] ){
		$comments = $wpdb->get_results( "SELECT comment_id  FROM `$wpdb->commentmeta` WHERE `meta_key` IN ('Likes', 'Dislikes') GROUP BY comment_id" );

		foreach ( $comments as $comment_key => $comment_value ) {
			$likes       = get_comment_meta( $comment_value->comment_id, 'Likes', true );
			$dislikes    = get_comment_meta( $comment_value->comment_id, 'Dislikes', true );
			$is_distinct = wp_ulike_setting_repo::isDistinct('post');

			if( $likes ){
				wp_ulike_update_meta_counter_value( $comment_value->comment_id, $likes, 'comment', 'like', $is_distinct );
			}
			if( $dislikes ){
				wp_ulike_update_meta_counter_value( $comment_value->comment_id, $dislikes, 'comment', 'dislike', $is_distinct );
			}
		}
	}

    wp_redirect( $_SERVER['HTTP_REFERER'] );
    exit();
}

add_action( 'admin_menu', 'migrate_likebtn_to_wp_ulike_admin_menu' );
function migrate_likebtn_to_wp_ulike_admin_menu(){
    add_management_page( 'Migrate LikeBtn to WP ULike', 'Migrate LikeBtn to WP ULike', 'administrator', 'migrate_likebtn_to_wp_ulike', 'migrate_likebtn_to_wp_ulike_do_page' );
}

function migrate_likebtn_to_wp_ulike_do_page(){
?>


	<div class="wrap">
		<h1>Migrate LikeBtn to WP ULike</h1><br>

		<form method="POST" action="<?php echo admin_url( 'admin.php' ); ?>">
			<label>
				Posts
				<input type="checkbox" name="posts" />
			</label><br>
			<label>
				Comments
				<input type="checkbox" name="comments" />
			</label><br><br>
			<input type="hidden" name="action" value="migrate_likebtn_to_wp_ulike" />
			<input class="button" type="submit" value="Do it!" />
		</form>

	</div>

<?php
}