hexo-theme-stellar/layout/_partial/widgets/related.ejs

<%
function relatedPostsInTopic() {
  if (page.topic?.length == 0) {
    return ''
  }
  const topic = theme.topic.tree[page.topic]
  if (topic == null) {
    return ''
  }
  var el = ''
  el += `<widget class="widget-wrapper${scrollreveal(' ')} post-list">`
  el += `<div class="widget-header dis-select">`
  el += `<span class="name">${__('btn.topic') + __('symbol.colon') + topic.name}</span>`
  el += `</div>`
  el += `<div class="widget-body">`
  for (let post of topic.pages) {
    const isActive = post.path == page.path
    el += `<a class="item${isActive ? ' active' : ''}" href="${url_for(post.path)}">`
    el += `<span class="title">${post.title}</span>`
    if (isActive) {
      el += icon('default:bookmark.active')
    }
    el += `</a>`
  }
  el += `</div>`
  el += `</widget>`
  return el
}
function relatedWiki() {
  let thisItemObject = theme.wiki.tree[page.wiki]
  if (thisItemObject == null) {
    return ''
  }
  const relatedItems = thisItemObject.relatedItems
  var el = ''
  for (let relatedItem of relatedItems) {
    el += `<widget class="widget-wrapper${scrollreveal(' ')} post-card">`
    el += `<div class="widget-header dis-select">`
    el += `<span class="name">${__('meta.more') + __('symbol.colon') + relatedItem.name}</span>`
    el += `</div>`
    el += `<div class="widget-body">`
    for (let id of relatedItem.items) {
      // 同一个分组中的其它项目
      let item = theme.wiki.tree[id]
      el += `<a class="item wiki" href="${url_for(item.homepage?.path)}">`
      el += `<span class="title">${item.title}</span>`
      if (item.description && item.description.length > 0) {
        el += `<span class="excerpt">${item.description}</span>`
      }
      el += `</a>`
    }
    el += `</div>`
    el += `</widget>`
  }
  return el
}
function layoutDiv() {
  if (page.wiki?.length > 0) {
    return relatedWiki()
  } else if (page.topic?.length > 0) {
    return relatedPostsInTopic()
  }
}
%>
<%- layoutDiv() %>