php 入门主题的相关帖子

Posted 2021-05-04

//
// Related posts title
///////////////////////////

.related-post-title {
  color: $black;
  display: block;
  font-size: 12px;
  font-style: italic;
  letter-spacing: .5px;
  line-height: 1.8rem;
  margin-top: 10px;
  padding-left: 10px;
  padding-right: 10px;
  text-decoration: none;
  text-transform: lowercase;

  &:before {
    background-color: #000;
    clear: both;
    content: "";
    display: block;
    height: 2px;
    margin: 11px auto 10px auto;
    text-align: center;
    width: 43px;
  }
}

/* ## Related Posts
--------------------------------------------- */

.single-post {
  .related {
    background-color: #F5F4F0;
    overflow: hidden;
    margin-bottom: 50px;
    padding: 30px;

    @media only screen and (max-width: 650px) {
        padding-bottom: 0;
    }

    h3 {
      font-size: 15px;
      margin-bottom: 30px;
      text-align: center;
    }
  }

  .related-post {
    background-color: $white;
    float: left;
    padding-bottom: 13px;
    text-align: center;
    width: 31%;
  }

  .related-posts-list .related-post:nth-child(2) {
    margin-left: 3.5%;
    margin-right: 3.5%;
  }
}

@media only screen and (max-width: 650px) {
  .single-post {
    .related-post,
    .related-posts-list .related-post:nth-child(2) {
      float: none;
      margin: 0 auto 30px auto;
      width: 353px;
      max-width: 100%;
    }
  }
}

/* # Related Posts
---------------------------------------------------------------------------------------------------- */

@import "base";
@import "title";

<?php
/**
 * Adds related posts on single posts
 *
 * @package KristaRae\Starter
 * @since   1.0.0
 * @author  Krista Rae LLC
 * @link    https://kristarae.co
 * @license GPL
 */
namespace KristaRae\Starter;

add_action( 'genesis_after_entry', __NAMESPACE__ . '\output_related_posts', 12 );
/**
 * Output related posts
 *
 * @since 1.0.0
 *
 * @return void
 */
function output_related_posts() {

	global $do_not_duplicate;

	if ( ! is_singular ( 'post' ) ) {
		return;
	}

	$count = 0;
	$related = '';

	$do_not_duplicate = array();
	$tags = wp_get_post_tags( get_the_ID() );
	$cats = wp_get_post_categories( get_the_ID() );

	// If we have some tags, run the tag query.
	if ( $tags ) {
		$query    = get_related_tags_query( $tags, $count );
		$related .= $query['related'];
		$count    = $query['count'];
	}

	// If we have some categories and less than 3 posts, run the cat query.
	if ( $cats && $count <= 2 ) {
		$query    = get_related_categories_query( $cats, $count );
		$related .= $query['related'];
		$count    = $query['count'];
	}

	// End here if we don't have any related posts.
	if ( ! $related ) {
		return;
	}

	// Display the related posts section.
	echo '<div class="related">';
	echo '<h3 class="related-title">You might also like:</h3>';
	echo '<div class="related-posts-list" data-columns>' . $related . '</div>';
	echo '</div>';

}

/**
 * Get the related tags query
 *
 * @since 1.0.0
 *
 * @param $tags
 * @param $count
 *
 * @return array|void
 */
function get_related_tags_query( $tags, $count ) {

	global $do_not_duplicate;

	if ( ! $tags ) {
		return;
	}

	$postIDs = array( get_the_ID() );

	foreach ( $tags as $tag ) {
		$tagID[] = $tag->term_id;
	}

	$tax_query = array(
		array(
			'taxonomy'  => 'post_format',
			'field'     => 'slug',
			'terms'     => array(
				'post-format-link',
				'post-format-status',
				'post-format-aside',
				'post-format-quote'
			),
			'operator' => 'NOT IN'
		)
	);
	$args = array(
		'tag__in'               => $tagID,
		'post__not_in'          => $postIDs,
		'showposts'             => 3,
		'ignore_sticky_posts'   => 1,
		'tax_query'             => $tax_query,
	);

	$related  = '';

	$tag_query = new \WP_Query( $args );

	if ( $tag_query->have_posts() ) {
		while ( $tag_query->have_posts() ) {
			$tag_query->the_post();

			$do_not_duplicate[] = get_the_ID();

			$count++;

			// $title = genesis_truncate_phrase( get_the_title(), 35 );
			$title = get_the_title();

			$related .= '<div class="related-post">';
			$related .= '<a class="related-image" href="' . get_permalink() . '" rel="bookmark" title="Permanent Link to ' . $title . '">' . genesis_get_image( array( 'size' => 'featured-post' ) ) . '</a>';
			$related .= '<a class="related-post-title" href="' . get_permalink() . '" rel="bookmark" title="Permanent Link to ' . $title . '">' . $title . '</a>';
			$related .= '</div>';
		}
	}

	wp_reset_postdata();

	$output = array(
		'related' => $related,
		'count'   => $count
	);

	return $output;
}

/**
 * Get the related categories query
 *
 * @since 1.0.0
 *
 * @param $cats
 * @param $count
 *
 * @return array|void
 */
function get_related_categories_query( $cats, $count ) {

	global $do_not_duplicate;

	if ( ! $cats ) {
		return;
	}

	$postIDs = array_merge( array( get_the_ID() ), $do_not_duplicate );

	$catIDs = array();

	foreach ( $cats as $cat ) {
		if ( 3 == $cat ) {
			continue;
		}
		$catIDs[] = $cat;
	}

	$showposts = 3 - $count;

	$tax_query = array(
		array(
			'taxonomy'  => 'post_format',
			'field'     => 'slug',
			'terms'     => array(
				'post-format-link',
				'post-format-status',
				'post-format-aside',
				'post-format-quote'
			),
			'operator' => 'NOT IN'
		)
	);
	$args = array(
		'category__in'          => $catIDs,
		'post__not_in'          => $postIDs,
		'showposts'             => $showposts,
		'ignore_sticky_posts'   => 1,
		'orderby'               => 'rand',
		'tax_query'             => $tax_query,
	);

	$related  = '';

	$cat_query = new \WP_Query( $args );

	if ( $cat_query->have_posts() ) {
		while ( $cat_query->have_posts() ) {
			$cat_query->the_post();

			$count++;

			// $title = genesis_truncate_phrase( get_the_title(), 35 );
			$title = get_the_title();

			$related .= '<div class="related-post">';
			$related .= '<a class="related-image" href="' . get_permalink() . '" rel="bookmark" title="Permanent Link to ' . $title . '">' . genesis_get_image( array( 'size' => 'featured-post' ) ) . '</a>';
			$related .= '<a class="related-post-title" href="' . get_permalink() . '" rel="bookmark" title="Permanent Link to ' . $title . '">' . $title . '</a>';
			$related .= '</div>';

		}
	}

	wp_reset_postdata();

	$output = array(
		'related' => $related,
		'count'   => $count
	);

	return $output;

}