[mcj]DUX5.3主题纯代码添加卡片内链详细教程-马春杰杰

添加functions.php代码

将下面代码复制到 DUX 主题的 functions.php 文件中：

// 获取特色图片地址
function jsk_the_thumbnail_src() {
  global $post;
    if ( get_post_meta($post->ID, 'thumbnail', true) ) { //如果有缩略图，则显示缩略图
      $image = get_post_meta($post->ID, 'thumbnail', true);
        return $image;
    } else {
      if ( has_post_thumbnail() ) { //如果有缩略图，则显示缩略图
        $img_src = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), "Full");
        return $img_src[0];      
        } else {
          $content = $post->post_content;
          preg_match_all('/<img.*?(?: |\\t|\\r|\\n)?src=[\'"]?(.+?)[\'"]?(?:(?: |\\t|\\r|\\n)+.*?)?>/sim', $content, $strResult, PREG_PATTERN_ORDER);
          $n = count($strResult[1]);
          if($n > 0){
            return $strResult[1][0]; //没有缩略图就取文章中第一张图片作为缩略图
          }else {
			  $random = mt_rand(1, 9);
			  return get_stylesheet_directory_uri().'/img/random/'.$random.'.jpg';
            //return get_template_directory_uri().'/img/thumbnail.png'; //文章中没有图片就设置随机显示一张图片
            }
        }
    }
}
// 文章内链短代码
if(!function_exists('embed_posts')){
  function embed_posts( $atts, $content = null ){
    extract( shortcode_atts( array(
      'ids' => ''
    ),$atts ) );
        global $post;
        $content = '';
        $postids = explode(',', $ids);
        $inset_posts = get_posts(array('post__in'=>$postids));
        $category = get_the_category($ids);
        foreach ($inset_posts as $key => $post) {
          setup_postdata( $post );
          $content .= '<div class="neilian">';
          $content .= '<div class="fl">';
          $content .= '<a target="_blank" href="'. get_permalink() .'" class="fl"><i class="fa fa-link fa-fw"></i>' . get_the_title() . '<span style="color:#FF5E52;">' . get_the_subtitle() . '<span></a>';
          $content .= '<p class="note"><span class="card-abstract">'. wp_trim_words( get_the_excerpt(), 100, '...' ) .'</span></p>';
          $content .= '<p class="card-controls"><span class="group-data"> <i>时间:</i>'. get_the_modified_date('Y/n/j') .'</span><span class="group-data"> <i>分类:</i><a target="_blank" href="'.get_category_link($category[0]->term_id ).'">'. $category[0]->cat_name .'</a></span><span class="group-data"> <i>人气:</i>'. _get_post_views(false, '', '', false) .'</span><span class="group-data"> <i>评论:</i>'. get_comments_number() .'</span></p>';
          $content .= '</div>';
          $content .= '<div class="fr">';
          $content .= '<a target="_blank" href="'. get_permalink() .'"><img src='. jsk_the_thumbnail_src() .' class="neilian-thumb"></a>';
          $content .= '</div>';
          $content .= '</div>';
        }
        wp_reset_postdata();
        return $content;
    }
}
add_shortcode('jsk_embed_post', 'embed_posts');

// 获取特色图片地址

function jsk_the_thumbnail_src() {

global $post;

if ( get_post_meta($post->ID, 'thumbnail', true) ) { //如果有缩略图，则显示缩略图

$image = get_post_meta($post->ID, 'thumbnail', true);

return $image;

} else {

if ( has_post_thumbnail() ) { //如果有缩略图，则显示缩略图

$img_src = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), "Full");

return $img_src[0];

} else {

$content = $post->post_content;

preg_match_all('/<img.*?(?: |\\t|\\r|\\n)?src=[\'"]?(.+?)[\'"]?(?:(?: |\\t|\\r|\\n)+.*?)?>/sim', $content, $strResult, PREG_PATTERN_ORDER);

$n = count($strResult[1]);

if($n > 0){

return $strResult[1][0]; //没有缩略图就取文章中第一张图片作为缩略图

}else {

$random = mt_rand(1, 9);

return get_stylesheet_directory_uri().'/img/random/'.$random.'.jpg';

//return get_template_directory_uri().'/img/thumbnail.png'; //文章中没有图片就设置随机显示一张图片

}

// 文章内链短代码

if(!function_exists('embed_posts')){

function embed_posts( $atts, $content = null ){

extract( shortcode_atts( array(

'ids' => ''

),$atts ) );

global $post;

$content = '';

$postids = explode(',', $ids);

$inset_posts = get_posts(array('post__in'=>$postids));

$category = get_the_category($ids);

foreach ($inset_posts as $key => $post) {

setup_postdata( $post );

$content .= '<div class="neilian">';

$content .= '<div class="fl">';

$content .= '<a target="_blank" href="'. get_permalink() .'" class="fl"><i class="fa fa-link fa-fw"></i>' . get_the_title() . '<span style="color:#FF5E52;">' . get_the_subtitle() . '<span></a>';

$content .= '<p class="note"><span class="card-abstract">'. wp_trim_words( get_the_excerpt(), 100, '...' ) .'</span></p>';

$content .= '<p class="card-controls"><span class="group-data"> <i>时间:</i>'. get_the_modified_date('Y/n/j') .'</span><span class="group-data"> <i>分类:</i><a target="_blank" href="'.get_category_link($category[0]->term_id ).'">'. $category[0]->cat_name .'</a></span><span class="group-data"> <i>人气:</i>'. _get_post_views(false, '', '', false) .'</span><span class="group-data"> <i>评论:</i>'. get_comments_number() .'</span></p>';

$content .= '</div>';

$content .= '<div class="fr">';

$content .= '<a target="_blank" href="'. get_permalink() .'"><img src='. jsk_the_thumbnail_src() .' class="neilian-thumb"></a>';

$content .= '</div>';

}

wp_reset_postdata();

return $content;

}

add_shortcode('jsk_embed_post', 'embed_posts');

这里获取图片的时候是调取的第一张图片，如果没有图片会随机添加，只需要在DUX主题目录下新建img/random文件夹，然后放入1.jpg~9.jpg即可。

添加快捷按钮

将下面代码复制到 functions.php 后，编辑器中的文本编辑框会多出一个卡片式内链按钮！

//添加卡片内链按钮
function appthemes_add_embed_posts() {
?>
    <script type="text/javascript">
        if ( typeof QTags != 'undefined' ) {
            QTags.addButton( 'jsk_embed_post', '卡片内链按钮', '[jsk_embed_post ids=123]','' );
        } 
    </script>
<?php 
}
add_action('admin_print_footer_scripts', 'appthemes_add_embed_posts' );

//添加卡片内链按钮

function appthemes_add_embed_posts() {

if ( typeof QTags != 'undefined' ) {

QTags.addButton( 'jsk_embed_post', '卡片内链按钮', '[jsk_embed_post ids=123]','' );

}

</script>

<?php

}

add_action('admin_print_footer_scripts', 'appthemes_add_embed_posts' );

添加 css 样式

.fl{float:left}
.fr{float:right}
.neilian {
margin-bottom:25px;
padding:10px;
width:100%;
overflow: hidden;
border:1px dashed #d4d4d4;
background:#fff;
box-shadow:0 1px 0 rgba(0,0,0,.1);
cursor:pointer;
-webkit-transition:box-shadow 218ms;
-moz-transition:box-shadow 218ms;
-o-transition:box-shadow 218ms;
transition:box-shadow 218ms;
}
.neilian:hover {
box-shadow:0 1px 8px 1px rgba(0,0,0,.1);
}
.neilian .fl {
width:72%;
}
.neilian .fr {
padding:10px 5px;
width:24%;
}
.neilian .fl a {
display:block;
margin-right:15px;
padding:8px 5px;
width:100%;
color:#35a56b!important;
text-decoration:none;
font-size:16px;
border:none;
}
.neilian .fl .note {
margin:0 0 5px;
padding-left:10px;
font-size:14px;
}
.neilian .fl .card-controls {
padding-left:10px;
font-size:12px;
}
.neilian .fl .card-controls .group-data {
float: left;
margin-right: 10px;
color: #999;
}
.neilian .card-controls .group-data i {
margin-right: 5px;
font-style: normal!important;
}
.neilian .card-controls .group-data a {
font-size:12px;
display:inline;
margin-right:auto;
padding:inherit;
}
.neilian .neilian-thumb{
width:170px;
height:120px;
}
@media only screen and (max-width:700px) {
.neilian .fl {width:100%;}
.neilian .fr {display: none;}
}