Paginação para WP

pagination.php

<?php
/**
 * @param $query - (required) Query utilizada para o loop. Se for uma query personalizada, passe o objeto. Senão, passe $wp_query
 * @param $baseURL - (optional) URL a partir de onde a paginação deve ser feita.
 * 
 */
function pagination( $query, $baseURL = '' ) {
  if ( ! $baseURL ) $baseURL = get_bloginfo( 'url' );
	$page = $query->query_vars["paged"];
	if ( !$page ) $page = 1;
	$qs = $_SERVER["QUERY_STRING"] ? "?".$_SERVER["QUERY_STRING"] : "";
	// Only necessary if there's more posts than posts-per-page
	if ( $query->found_posts > $query->query_vars["posts_per_page"] ) {
		echo '<ul class="paginate">';
		// Previous link?
		if ( $page > 1 ) {
			echo '<li class="previous"><a href="'.$baseURL.'page/'.($page-1).'/'.$qs.'">&lsaquo; Anterior</a></li>';
		}
		// Loop through pages
		for ( $i=1; $i <= $query->max_num_pages; $i++ ) {
			// Current page or linked page?
			if ( $i == $page ) {
				echo '<li class="active">'.$i.'</li>';
			} else {
				echo '<li><a href="'.$baseURL.'page/'.$i.'/'.$qs.'">'.$i.'</a></li>';
			}
		}
		// Next link?
		if ( $page < $query->max_num_pages ) {
			echo '<li><a href="'.$baseURL.'page/'.($page+1).'/'.$qs.'">Próxima &rsaquo;</a></li>';
		}
		echo '</ul>';
	}
}