functions.php

<?php
function js_async_attr($tag){
    $scripts_to_exclude = array();

    foreach($scripts_to_exclude as $exclude_script){
        if(true == strpos($tag, $exclude_script ) )
        return $tag; 
    }

    return str_replace( ' src', ' defer src', $tag );
}
if(!is_admin()) {
    add_filter( 'script_loader_tag', 'js_async_attr', 10, 2 );
}

function understrap_remove_scripts() {
    wp_dequeue_style( 'understrap-styles' );
    wp_deregister_style( 'understrap-styles' );

    wp_dequeue_script( 'understrap-scripts' );
    wp_deregister_script( 'understrap-scripts' );

    // Removes the parent themes stylesheet and scripts from inc/enqueue.php
}
add_action( 'wp_enqueue_scripts', 'understrap_remove_scripts', 20 );

add_action( 'wp_enqueue_scripts', 'theme_enqueue_styles' );
function theme_enqueue_styles() {

	// Get the theme data
	$the_theme = wp_get_theme();

    wp_enqueue_style( 'child-understrap-styles', get_stylesheet_directory_uri() . '/css/child-theme.min.css', array(), $the_theme->get( 'Version' ) );
    wp_enqueue_script( 'child-understrap-scripts', get_stylesheet_directory_uri() . '/js/child-theme.min.js', array(), $the_theme->get( 'Version' ), true );
    wp_enqueue_script( 'ajax-pagination',  get_stylesheet_directory_uri() . '/js/ajax-pagination.js', array( 'jquery' ), $the_theme->get( 'Version' ), true );
    wp_enqueue_script( 'animation',  get_stylesheet_directory_uri() . '/js/wow.js', array( 'jquery' ), $the_theme->get( 'Version' ), true );
    wp_localize_script( 'ajax-pagination', 'ajaxpagination', array(
      'ajaxurl' => admin_url( 'admin-ajax.php' )
    ));
}

add_action( 'wp_ajax_nopriv_ajax_pagination', 'my_ajax_pagination' );
add_action( 'wp_ajax_ajax_pagination', 'my_ajax_pagination' );

function my_ajax_pagination() {
    $category = $_POST['category'];
    $posts = $_POST['posts'];
    $page = $_POST['page'];
    $keyword = $_POST['keyword'];
    get_template_part( 'loop-templates/components/content', 'main-blog' );
    get_my_posts($category, $posts, $page, $keyword);
    die();
}

function register_my_menus() {
  register_nav_menus(
    array(
      'social-menu' => __( 'Menú Social' ),
      'categories-menu' => __( 'Menú Categorías' ),
      'footer-menu' => __( 'Menú Footer' ),
    )
  );
}
add_action( 'init', 'register_my_menus' );

require_once get_theme_file_path() . '/inc/navwalker-yofisio.php';
require_once get_theme_file_path() . '/inc/custom-comments.php';

add_theme_support( 'post-thumbnails' );
add_theme_support( 'category-thumbnails' );

// Breadcrumbs
function yofisio_breadcrumbs() {
       
  // Settings
  $breadcrums_id      = 'breadcrumbs';
  $breadcrums_class   = 'breadcrumb';
  $home_title         = 'YoFisio';
    
    if get_field('icono_home_breadcrumbs', get_option( 'page_on_front' )) {
        if function_exists( 'ampforwp_is_amp_endpoint' ) && ampforwp_is_amp_endpoint() ) {
            $home_display = '<amp-img src="'.get_field('icono_home_breadcrumbs', get_option( 'page_on_front' ))['url'].'" width="121px" height="40px" alt="'.$home_title.'"></amp-img>';
        } else {
            $home_display = '<img src="'.get_field('icono_home_breadcrumbs', get_option( 'page_on_front' ))['url'].'" alt="'.$home_title.'" rel="home">';
        }
    } else {
        $home_display = $home_title;
    }

  // Get the query & post information
  global $post,$wp_query;
  
  // Do not display on the homepage
  if ( !is_front_page() && !is_home() ) {
    echo '<nav>';
    // Build the breadcrums
    echo '<ol id="' . $breadcrums_id . '" class="' . $breadcrums_class . '">';
    echo '<div class="container">';
    // Home page
    echo '<li class="menu-item menu-item-home breadcrumb-item"><a class="bread-link bread-home" href="' . get_home_url() . '" title="' . $home_title . '">' . $home_display . '</a></li>';

    if ( is_archive() && !is_tax() && !is_category() && !is_tag() ) {
      echo '<li class="current-menu-item menu-item-archive breadcrumb-item active"><a class="bread-current bread-archive">' . post_type_archive_title($prefix, false) . '</a></li>';
    } else if ( is_archive() && is_tax() && !is_category() && !is_tag() ) {
      // If post is a custom post type
      $post_type = get_post_type();
      // If it is a custom post type display name and link
      if($post_type != 'post') {
        $post_type_object = get_post_type_object($post_type);
        $post_type_archive = get_post_type_archive_link($post_type);
        echo '<li class="menu-item breadcrumb-item menu-item-custom-post-type-' . $post_type . '"><a class="bread-cat bread-custom-post-type-' . $post_type . '" href="' . $post_type_archive . '" title="' . $post_type_object->labels->name . '">' . $post_type_object->labels->name . '</a></li>';
      }
      $custom_tax_name = get_queried_object()->name;
      echo '<li class=menu-item-current breadcrumb-item active menu-item-archive"><a class="bread-current bread-archive">' . $custom_tax_name . '</a></li>';
    } else if ( is_single() ) {
      // If post is a custom post type
      $post_type = get_post_type();
      // If it is a custom post type display name and link
      if($post_type != 'post') {
        $post_type_object = get_post_type_object($post_type);
        $post_type_archive = get_post_type_archive_link($post_type);
        echo '<li class="menu-item breadcrumb-item menu-item-custom-post-type-' . $post_type . '"><a class="bread-cat bread-custom-post-type-' . $post_type . '" href="' . $post_type_archive . '" title="' . $post_type_object->labels->name . '">' . $post_type_object->labels->name . '</a></li>';
      }
      // Get post category info
      $category = get_the_category();
      if(!empty($category)) {
        // Get last category post is in
        $last_category = end(array_values($category));
        // Get parent any categories and create array
        $get_cat_parents = rtrim(get_category_parents($last_category->term_id, true, ','),',');
        $cat_parents = explode(',',$get_cat_parents);
        // Loop through parent categories and store in variable $cat_display
        $cat_display = '';
        foreach($cat_parents as $parents) {
          $cat_display .= '<li class="menu-item breadcrumb-item">'.$parents.'</li>';
        }
      }
      // If it's a custom post type within a custom taxonomy
      $taxonomy_exists = taxonomy_exists($custom_taxonomy);
      if(empty($last_category) && !empty($custom_taxonomy) && $taxonomy_exists) {
        $taxonomy_terms = get_the_terms( $post->ID, $custom_taxonomy );
        $cat_id         = $taxonomy_terms[0]->term_id;
        $cat_nicename   = $taxonomy_terms[0]->slug;
        $cat_link       = get_term_link($taxonomy_terms[0]->term_id, $custom_taxonomy);
        $cat_name       = $taxonomy_terms[0]->name;
      }
      // Check if the post is in a category
      if(!empty($last_category)) {
        echo $cat_display;
        echo '<li class="menu-item breadcrumb-item active menu-item-current menu-item-' . $post->ID . '"><a class="bread-current bread-' . $post->ID . '" title="' . get_the_title() . '">' . get_the_title() . '</a></li>';
      // Else if post is in a custom taxonomy
      } else if(!empty($cat_id)) {
        echo '<li class="menu-item breadcrumb-item menu-item-' . $cat_id . ' menu-item-' . $cat_nicename . '"><a class="bread-cat bread-cat-' . $cat_id . ' bread-cat-' . $cat_nicename . '" href="' . $cat_link . '" title="' . $cat_name . '">' . $cat_name . '</a></li>';
        //echo '<li class="separator"> ' . $separator . ' </li>';
        echo '<li class="menu-item breadcrumb-item active menu-item-current menu-item-' . $post->ID . '"><a class="bread-current bread-' . $post->ID . '" title="' . get_the_title() . '">' . get_the_title() . '</a></li>';
      } else {
        echo '<li class="menu-item breadcrumb-item active menu-item-current menu-item-' . $post->ID . '"><a class="bread-current bread-' . $post->ID . '" title="' . get_the_title() . '">' . get_the_title() . '</a></li>';
      }
    } else if ( is_category() ) {
      // Category page
      echo '<li class="menu-item-current breadcrumb-item active menu-item"><a class="bread-current bread-cat">' . single_cat_title('', false) . '</a></li>';
    } else if ( is_page() ) {
      // Standard page
      if( $post->post_parent ){
        // If child page, get parents 
        $anc = get_post_ancestors( $post->ID );
        // Get parents in the right order
        $anc = array_reverse($anc);
        // Parent page loop
        if ( !isset( $parents ) ) $parents = null;
        foreach ( $anc as $ancestor ) {
          //QUITAR INICIO
          $parents .= '<li class="menu-item-parent breadcrumb-item menu-item-parent-' . $ancestor . '"><a class="bread-parent bread-parent-' . $ancestor . '" href="' . get_permalink($ancestor) . '" title="' . get_the_title($ancestor) . '">' . get_the_title($ancestor) . '</a></li>';
          //$parents .= '<li class="separator separator-' . $ancestor . '"> ' . $separator . ' </li>';
        }
        // Display parent pages
        echo $parents;
        // Current page
        echo '<li class="menu-item menu-item-current breadcrumb-item active menu-item-' . $post->ID . '"><a title="' . get_the_title() . '">' . get_the_title() . '</a></li>';
      } else {
        // Just display current page if not parents
        echo '<li class="menu-item menu-item-current breadcrumb-item active menu-item-' . $post->ID . '"><a class="bread-current bread-' . $post->ID . '">' . get_the_title() . '</a></li>';
      }
    } else if ( is_tag() ) {
      // Tag page
      // Get tag information
      $term_id        = get_query_var('tag_id');
      $taxonomy       = 'post_tag';
      $args           = 'include=' . $term_id;
      $terms          = get_terms( $taxonomy, $args );
      $get_term_id    = $terms[0]->term_id;
      $get_term_slug  = $terms[0]->slug;
      $get_term_name  = $terms[0]->name;
      // Display the tag name
      echo '<li class="menu-item breadcrumb-item active menu-item-current menu-item-tag-' . $get_term_id . ' menu-item-tag-' . $get_term_slug . '"><strong class="bread-current bread-tag-' . $get_term_id . ' bread-tag-' . $get_term_slug . '">' . $get_term_name . '</strong></li>';
    // } elseif ( is_day() ) {
    //   // Day archive
    //   // Year link
    //   echo '<li class="menu-item breadcrumb-item menu-item-year menu-item-year-' . get_the_time('Y') . '"><a class="bread-year bread-year-' . get_the_time('Y') . '" href="' . get_year_link( get_the_time('Y') ) . '" title="' . get_the_time('Y') . '">' . get_the_time('Y') . ' Archives</a></li>';
    //   //echo '<li class="separator separator-' . get_the_time('Y') . '"> ' . $separator . ' </li>';
    //   // Month link
    //   echo '<li class="menu-item breadcrumb-item menu-item-month menu-item-month-' . get_the_time('m') . '"><a class="bread-month bread-month-' . get_the_time('m') . '" href="' . get_month_link( get_the_time('Y'), get_the_time('m') ) . '" title="' . get_the_time('M') . '">' . get_the_time('M') . ' Archives</a></li>';
    //   //echo '<li class="separator separator-' . get_the_time('m') . '"> ' . $separator . ' </li>';
    //   // Day display
    //   echo '<li class="menu-item breadcrumb-item active menu-item-current menu-item-' . get_the_time('j') . '"><strong class="bread-current bread-' . get_the_time('j') . '"> ' . get_the_time('jS') . ' ' . get_the_time('M') . ' Archives</strong></li>';
    // } else if ( is_month() ) {
    //   // Month Archive
    //   // Year link
    //   echo '<li class="menu-item breadcrumb-item menu-item-year menu-item-year-' . get_the_time('Y') . '"><a class="bread-year bread-year-' . get_the_time('Y') . '" href="' . get_year_link( get_the_time('Y') ) . '" title="' . get_the_time('Y') . '">' . get_the_time('Y') . ' Archives</a></li>';
    //   //echo '<li class="separator separator-' . get_the_time('Y') . '"> ' . $separator . ' </li>';
    //   // Month display
    //   echo '<li class="menu-item breadcrumb-item menu-item-month menu-item-month-' . get_the_time('m') . '"><strong class="bread-month bread-month-' . get_the_time('m') . '" title="' . get_the_time('M') . '">' . get_the_time('M') . ' Archives</strong></li>';
    // } else if ( is_year() ) {
    //   // Display year archive
    //   echo '<li class="menu-item breadcrumb-item active menu-item-current menu-item-current-' . get_the_time('Y') . '"><strong class="bread-current bread-current-' . get_the_time('Y') . '" title="' . get_the_time('Y') . '">' . get_the_time('Y') . ' Archives</strong></li>';
    } else if ( is_author() ) {
      // Auhor archive
      // Get the author information
      global $author;
      $userdata = get_userdata( $author );
      // Display author name
      echo '<li class="menu-item breadcrumb-item active menu-item-current menu-item-current-' . $userdata->user_nicename . '"><strong class="bread-current bread-current-' . $userdata->user_nicename . '" title="' . $userdata->display_name . '">' . 'Author: ' . $userdata->display_name . '</strong></li>';
    } else if ( get_query_var('paged') ) {
      // Paginated archives
      echo '<li class="menu-item breadcrumb-item active menu-item-current menu-item-current-' . get_query_var('paged') . '"><strong class="bread-current bread-current-' . get_query_var('paged') . '" title="Page ' . get_query_var('paged') . '">'.__('Page') . ' ' . get_query_var('paged') . '</strong></li>';
    } else if ( is_search() ) {
      // Search results page
      echo '<li class="menu-item breadcrumb-item active menu-item-current menu-item-current-' . get_search_query() . '"><strong class="bread-current bread-current-' . get_search_query() . '" title="Búsqueda: ' . get_search_query() . '">Búsqueda: ' . get_search_query() . '</strong></li>';
    } elseif ( is_404() ) {
      // 404 page
      echo '<li class="menu-item breadcrumb-item">' . 'Error 404' . '</li>';
    }
    echo '</div></ol></nav>';
  }
}
class Yofisio_Comment_Walker extends Walker_Comment {
    var $tree_type = 'comment';
    var $db_fields = array( 'parent' => 'comment_parent', 'id' => 'comment_ID' );

    // constructor – wrapper for the comments list
    function __construct() { ?>

        <section class="comments-list">

    <?php }

    // start_lvl – wrapper for child comments list
    function start_lvl( &$output, $depth = 0, $args = array() ) {
        $GLOBALS['comment_depth'] = $depth + 2; ?>
        
        <section class="child-comments comments-list">

    <?php }

    // end_lvl – closing wrapper for child comments list
    function end_lvl( &$output, $depth = 0, $args = array() ) {
        $GLOBALS['comment_depth'] = $depth + 2; ?>

        </section>

    <?php }

    // start_el – HTML for comment template
    function start_el( &$output, $comment, $depth = 0, $args = array(), $id = 0 ) {
        $depth++;
        $GLOBALS['comment_depth'] = $depth;
        $GLOBALS['comment'] = $comment;
        $parent_class = ( empty( $args['has_children'] ) ? '' : 'parent' ); 

        if ( 'article' == $args['style'] ) {
            $tag = 'article';
            $add_below = 'comment';
        } else {
            $tag = 'article';
            $add_below = 'comment';
        } ?>

        <article <?php comment_class(empty( $args['has_children'] ) ? '' :'parent') ?> id="comment-<?php comment_ID() ?>" itemprop="comment" itemscope itemtype="http://schema.org/Comment">
            <figure class="avatar float-left"><?php echo get_avatar( $comment, 64, '', 'Avatar' ); ?></figure>
            <div class="comment-meta post-meta" role="complementary">
                <?php edit_comment_link('<p class="comment-meta-item">Edit this comment</p>','',''); ?>
                <?php if ($comment->comment_approved == '0') : ?>
                <p class="comment-meta-item">Your comment is awaiting moderation.</p>
                <?php endif; ?>
            </div>
            <div class="comment-content post-content" itemprop="text">
                <?php comment_text() ?>
                <?php comment_reply_link(array_merge( $args, array('add_below' => $add_below, 'depth' => $depth, 'max_depth' => $args['max_depth']))) ?>
            </div>
            <p class="comment-author">  
                <a class="comment-author-link" rel="nofollow noopener" target="_blank" href="<?php comment_author_url(); ?>" itemprop="author"><?php comment_author(); ?></a> el
            
            <time class="comment-meta-item" datetime="<?php comment_date('Y-m-d') ?>T<?php comment_time('H:iP') ?>" itemprop="datePublished"><?php comment_date('j F, Y') ?> a las <a href="#comment-<?php comment_ID() ?>" itemprop="url"><?php comment_time('G:i:s') ?></a></time>
</p>
    <?php }

    // end_el – closing HTML for comment template
    function end_el(&$output, $comment, $depth = 0, $args = array() ) { ?>

        </article>

    <?php }

    // destructor – closing wrapper for the comments list
    function __destruct() { ?>

        </section>
    
    <?php }

}

function get_my_title() {
    if ( is_home() && !is_front_page() ) { // Blog
        $title = get_field('titulo', get_option( 'page_for_posts' ));
    } elseif ( is_category() ) {
        /* translators: Category archive title. 1: Category name */
        $title = sprintf( 'Noticias: %s', single_cat_title( '', false ) );
    } elseif ( is_tag() ) {
        /* translators: Tag archive title. 1: Tag name */
        $title = sprintf( __( 'Tag: %s' ), single_tag_title( '', false ) );
    } elseif ( is_search() ) {
        /* translators: Tag archive title. 1: Tag name */
        $title = sprintf( __( 'Búsqueda: %s' ), get_search_query() );
    } elseif ( is_author() ) {
        /* translators: Author archive title. 1: Author name */
        $title = sprintf( __( 'Author: %s' ), get_the_author() );
    } elseif ( is_year() ) {
        /* translators: Yearly archive title. 1: Year */
        $title = sprintf( __( 'Year: %s' ), get_the_date( _x( 'Y', 'yearly archives date format' ) ) );
    } elseif ( is_month() ) {
        /* translators: Monthly archive title. 1: Month name and year */
        $title = sprintf( __( 'Month: %s' ), get_the_date( _x( 'F Y', 'monthly archives date format' ) ) );
    } elseif ( is_day() ) {
        /* translators: Daily archive title. 1: Date */
        $title = sprintf( __( 'Day: %s' ), get_the_date( _x( 'F j, Y', 'daily archives date format' ) ) );
    } elseif ( get_field('titulo') ) {
        $title = get_field('titulo');
    } elseif ( is_tax( 'post_format' ) ) {
        if ( is_tax( 'post_format', 'post-format-aside' ) ) {
            $title = _x( 'Asides', 'post format archive title' );
        } elseif ( is_tax( 'post_format', 'post-format-gallery' ) ) {
            $title = _x( 'Galleries', 'post format archive title' );
        } elseif ( is_tax( 'post_format', 'post-format-image' ) ) {
            $title = _x( 'Images', 'post format archive title' );
        } elseif ( is_tax( 'post_format', 'post-format-video' ) ) {
            $title = _x( 'Videos', 'post format archive title' );
        } elseif ( is_tax( 'post_format', 'post-format-quote' ) ) {
            $title = _x( 'Quotes', 'post format archive title' );
        } elseif ( is_tax( 'post_format', 'post-format-link' ) ) {
            $title = _x( 'Links', 'post format archive title' );
        } elseif ( is_tax( 'post_format', 'post-format-status' ) ) {
            $title = _x( 'Statuses', 'post format archive title' );
        } elseif ( is_tax( 'post_format', 'post-format-audio' ) ) {
            $title = _x( 'Audio', 'post format archive title' );
        } elseif ( is_tax( 'post_format', 'post-format-chat' ) ) {
            $title = _x( 'Chats', 'post format archive title' );
        }
    } elseif ( is_post_type_archive() ) {
        /* translators: Post type archive title. 1: Post type name */
        $title = sprintf( __( 'Archives: %s' ), post_type_archive_title( '', false ) );
    } elseif ( is_tax() ) {
        $tax = get_taxonomy( get_queried_object()->taxonomy );
        /* translators: Taxonomy term archive title. 1: Taxonomy singular name, 2: Current taxonomy term */
        $title = sprintf( __( '%1$s: %2$s' ), $tax->labels->singular_name, single_term_title( '', false ) );
    } elseif ( get_the_title() ) {
        $title = get_the_title();
    } elseif ( is_404() ) {
        $title = '404: Página no encontrada';
    } else {
        $title = __( 'Archives' );
    }
 
    /**
     * Filters the archive title.
     *
     * @since 4.1.0
     *
     * @param string $title Archive title to be displayed.
     */
    return apply_filters( 'get_my_title', $title );
}


function excerpt($limit) {
  $content = strip_shortcodes(get_the_content());
  $content = wp_filter_nohtml_kses( $content );
  $excerpt = explode(' ', $content, $limit);
  if (count($excerpt)>=$limit) {
    array_pop($excerpt);
    $excerpt = implode(" ",$excerpt).'...';
  } else {
    $excerpt = implode(" ",$excerpt);
  }
  $excerpt = preg_replace('`[[^]]*]`','',$excerpt);
  return $excerpt;
}
function custom_excerpt_more( $more ) {
	return '...';
}
add_filter( 'excerpt_more', 'custom_excerpt_more' );
function excerpt_read_more_link($output) {
  return '';
}
add_filter('the_excerpt', 'excerpt_read_more_link');


function yofisio_posted_on() {
	$time_string = '<time class="entry-date published updated" datetime="%1$s">%2$s</time>';

	$time_string = sprintf( $time_string,
		esc_attr( get_the_date( 'c' ) ),
		esc_html( get_the_date() ),
		esc_attr( get_the_modified_date( 'c' ) ),
		esc_html( get_the_modified_date() )
	);

  echo $time_string;
}

function yofisio_entry_footer() {
	// Hide category and tag text for pages.
	if ( 'post' === get_post_type() ) {
		/* translators: used between list items, there is a space after the comma */
		$categories_list = get_the_category_list( esc_html__( ', ', 'understrap' ) );
		if ( $categories_list && understrap_categorized_blog() ) {
			printf( '<span class="cat-links">' . esc_html__( '%1$s', 'understrap' ) . '</span>', $categories_list ); // WPCS: XSS OK.
		}

	}
  
	edit_post_link(
		sprintf(
			/* translators: %s: Name of current post */
			esc_html__( 'Editar', 'understrap' ),
			the_title( '<span class="screen-reader-text">"', '"</span>', false )
		),
		'<span class="edit-link">',
		'</span>'
	);
}

function get_my_posts($category, $posts, $page, $keyword) {
    $params = array('post_status' => 'publish', 'posts_per_page' => $posts, 'paged' => $page);
    if ( isset($category) && $category ) {
        $params['category_name'] = $category;
    }
    if ( isset($keyword) && $keyword ) {
        $params['s'] = $keyword;
    }
    $category_query = new WP_Query( $params );

    if ( $category_query->have_posts() ) { 
        while ( $category_query->have_posts() ) {
            $category_query->the_post();
            get_template_part( 'loop-templates/content', 'blog-post' );
        }
    } elseif ( $page == 1 ) {
        get_template_part( 'loop-templates/content', 'none' );
    }
}

function get_total_posts($category) {
    if ( !isset($category) || !$category ) {
        return wp_count_posts()->publish;
    } else {
        return get_terms(array('taxonomy' => 'category', 'slug' => $category))[0]->count;
    }
}

function pagination($category, $posts) {
    echo '<div aria-label="Page Navigation">';
        echo '<ul class="pagination '.$category.'">';
            echo '<li class="page-item">';
                echo '<a class="page-link" href="#" aria-label="Previous">';
                    echo '<span aria-hidden="true"><i class="fa fa-arrow-left" aria-hidden="true"></i></span>';
                    echo '<span class="sr-only">Previous</span>';
                echo '</a>';
            echo '</li>';
            echo '<li class="page-item disabled"><a class="page-link"><span aria-label="This">1</span> / <span aria-label="Total">'.ceil(get_total_posts($category) / $posts).'</span></a></li>';
            echo '<li class="page-item">';
                echo '<a class="page-link" href="#" aria-label="Next">';
                    echo '<span aria-hidden="true"><i class="fa fa-arrow-right" aria-hidden="true"></i></span>';
                    echo '<span class="sr-only">Next</span>';
                echo '</a>';
            echo '</li>';
        echo '</ul>';
    echo '</div>';
}

function yofisio_post_nav() {
    // Don't print empty markup if there's nowhere to navigate.
    $previous = ( is_attachment() ) ? get_post( get_post()->post_parent ) : get_adjacent_post( false, '', true );
    $next     = get_adjacent_post( false, '', false );

    if ( ! $next && ! $previous ) {
        return;
    }
    ?>

    <div class="row">
        <div class="col-md-12">
            <nav class="navigation post-navigation">
                <h2 class="sr-only"><?php _e( 'Post navigation', 'understrap' ); ?></h2>
                <div class="nav-links">
                    <?php
                        if ( get_previous_post_link() ) {
                            previous_post_link(
                                '<div class="nav-previous float-left"><div class="nav-title">Anterior Noticia</div><div>%link</div></div>',
                                _x( '<i class="fa fa-hand-o-left"></i>&nbsp;%title', 'Previous post link', 'understrap' ),
                                true
                            );
                        }
                        if ( get_next_post_link() ) {
                            next_post_link(
                                '<div class="nav-next float-right"><div class="nav-title">Siguiente Noticia</div><div class="float-right">%link</div></div>',
                                _x( '%title&nbsp;<i class="fa fa-hand-o-right"></i>', 'Next post link', 'understrap' ),
                                true
                            );
                        }
                    ?>
                </div><!-- .nav-links -->
            </nav><!-- .navigation -->
        </div>
    </div>
    <?php
}

add_filter( 'avatar_defaults', 'yofisio_avatar' );
function yofisio_avatar($avatar_defaults) {
    $myavatar = 'https://yofisio.es/wp-content/uploads/yofisio_avatar.png';
    $avatar_defaults[$myavatar] = "Yofisio Avatar";
    return $avatar_defaults;
}

function add_to_head() { ?>
    <meta name="application-name" content="<?php bloginfo( 'name' ); ?> - <?php bloginfo( 'description' ); ?>">
    <meta name="theme-color" content="#2288ca">
    <meta name="msapplication-TileColor" content="#2288ca">
    <meta name="msapplication-TileImage" content="/wp-content/uploads/logo.svg">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="default">
    <link rel="apple-touch-startup-image" href="/wp-content/uploads/logo.png">
    <link rel="icon" type="image/x-icon" href="/wp-content/uploads/icon.png">
    <link rel="icon" type="image/png" href="/wp-content/uploads/icon.png">
    <link rel="apple-touch-icon" href="/wp-content/uploads/logo.png">
<?php }
add_action( 'wp_head', 'add_to_head' );

?>