液体和算术

Question

我正在做一些分页，我想知道是否有办法告诉液体只显示5页。我找的输出是

< <第5 6 7 9尾页>>

我现在有逻辑到位的作品，但它显示了所有30个几个页面。

{% for count in (2..paginator.total_pages) %} 
    {% if count == paginator.page %} 
     <span class="current">{{ count }}</span> 
    {% else %} 
     <a href="/page/{{ count }}/" class="pagenavi-page" title="{{ count }}">{{ count }}</a> 
    {% endif %} 
{% endfor %} 

我想是能够使2个paginator.total_pages是动态的，我已经试过

{% for count in ((paginator.page - 2)..(paginator.page + 2)) %} 

此代码但实际上并没有做数学题，如果paginator.page = 5那么循环是5..5，并没有提供预期的结果。我可以找出逻辑，以便它不会碰到负数并按预期工作，但我怎么能在这里做数学方程？

Answer 1

您需要使用paginator.total_pages上的过滤器进行算术运算，然后使用capture标记将结果捕获到变量中。一旦你开始和结束的页面，你可以写for循环，你通常会：

{% capture page_start %}{{ paginator.page | minus: 2 }}{% endcapture %} 
{% capture page_end %}{{ paginator.page | plus: 2 }}{% endcapture %} 

{% for count in (page_start..page_end) %} 
    {% comment %} ... do your thing ... {% endcomment %} 
{% endfor %} 

Answer 2

我建立与杰基尔一个博客，我已经遇到了类似的情况。根据我在Liquid wiki中发现的内容，可以使用limit和offset迭代给定集合的子集。

下面的例子反映了您的具体情况而应正常工作在每一个页面上，从第一个到最后一个：

{% capture start %}{{ paginator.page | minus: 3 }}{% endcapture %} 

{% for i in (1..paginator.total_pages) limit: 5 offset: start %} 
    ... 
{% endfor %} 

Answer 3

试试这个

{% if paginator.total_pages < 7 %} 
{% if paginator.page == 1 %} 
     <span class="current bold">1</span> 
{% else %} 
     <a href="{{ site.url }}/">1</a> 
{% endif %} 
{% for count in (2..paginator.total_pages) %} 
    {% if count == paginator.page %} 
     <span class="current bold">{{ count }}</span> 
    {% else %} 
     <a href="/page{{ count }}/" class="pagenavi-page" title="{{ count }}">{{ count }}</a> 
    {% endif %} 
{% endfor %} 
{% else %} 
{% assign page_start = paginator.page | minus: 2 %} 
{% assign page_end = paginator.page | plus: 2 %} 
{% if page_end > paginator.total_pages %} 
{% assign page_end = paginator.total_pages %} 
{% assign page_start = paginator.page | minus: 4 %} 
{% endif %} 
{% if page_start < 2 %} 
{% assign page_end = paginator.page | plus: 3 %} 
{% assign page_start = paginator.page | minus: 1 %} 
{% endif %} 
{% if page_start == 0 %} 
{% assign page_end = paginator.page | plus: 4 %} 
{% assign page_start = paginator.page %} 
{% endif %} 
{% if page_start == 1 %} 
{% assign page_end = paginator.page | plus: 4 %} 
{% assign page_start = 2 %} 
{% if paginator.page == 1 %} 
     <span class="current bold">1</span> 
{% else %} 
     <a href="{{ site.url }}/">1</a> 
{% endif %} 
{% endif %} 
{% for count in (page_start..page_end) %} 
    {% if count == paginator.page %} 
     <span class="current bold">{{ count }}</span> 
    {% else %} 
     <a href="/page{{ count }}/" class="pagenavi-page" title="{{ count }}">{{ count }}</a> 
    {% endif %} 
{% endfor %} 
{% endif %} 

Answer 4

我使用的引导3.0.3为我的网站。我使用下面的代码进行分页。 它具有相同的效果，你正在寻找。我上面发布的代码是您正在寻找的内容，但我会在这里发布我的引导分页代码。

{% if paginator.total_pages != 1 %} 
{% if paginator.total_pages < 7 %} 
     <div class="page-body col-md-12"> 
      <ul class="pagination pagination-centered"> 
      {% if paginator.total_pages >= 10 %} 
      {% if paginator.previous_page %} 
       <li> 
        <a href="{{ site.url }}/">&laquo;&laquo;</a> 
       </li> 
      {% else %} 
       <li class="disabled"> 
       <a>&laquo;&laquo;</a> 
       </li> 
      {% endif %} 
      {% endif %} 
      {% if paginator.previous_page %} 
       {% if paginator.previous_page == 1 %} 
       <li> 
        <a href="{{ site.url }}/">&laquo;</a> 
       </li> 
       {% else %} 
       <li> 
        <a href="{{ site.url }}/page{{paginator.previous_page}}">&laquo;</a> 
       </li> 
       {% endif %} 
      {% else %} 
       <li class="disabled"> 
       <a>&laquo;</a> 
       </li> 
      {% endif %} 
      {% if paginator.page == 1 %} 
       <li class="active"> 
       <a>1</a> 
       </li> 
      {% else %} 
       <li> 
       <a href="{{ site.url }}/">1</a> 
       </li> 
      {% endif %} 
      {% for count in (2..paginator.total_pages) %} 
       {% if count == paginator.page %} 
       <li class="active"> 
        <a>{{count}}</a> 
       </li> 
       {% else %} 
       <li> 
        <a href="{{ site.url }}/page{{count}}">{{count}}</a> 
       </li> 
       {% endif %} 
      {% endfor %} 
      {% if paginator.next_page %} 
       <li> 
       <a href="{{ site.url }}/page{{paginator.next_page}}">&raquo;</a> 
       </li> 
      {% else %} 
       <li class="disabled"> 
       <a>&raquo;</a> 
       </li> 
      {% endif %} 
      {% if paginator.total_pages >= 10 %} 
      {% if paginator.next_page %} 
       <li> 
       <a href="{{ site.url }}/page{{paginator.total_pages}}">&raquo;&raquo;</a> 
       </li> 
      {% else %} 
       <li class="disabled"> 
       <a>&raquo;&raquo;</a> 
       </li> 
      {% endif %} 
      {% endif %} 
      </ul> 
     </div> 
{% else %} 

{% assign page_start = paginator.page | minus: 2 %} 
{% assign page_end = paginator.page | plus: 2 %} 
{% if page_end > paginator.total_pages %} 
{% assign page_end = paginator.total_pages %} 
{% assign page_start = paginator.page | minus: 4 %} 
{% endif %} 
{% if page_start < 2 %} 
{% assign page_end = paginator.page | plus: 3 %} 
{% assign page_start = paginator.page | minus: 1 %} 
{% endif %} 
{% if page_start == 0 %} 
{% assign page_end = paginator.page | plus: 4 %} 
{% assign page_start = paginator.page %} 
{% endif %} 

<div class="page-body col-md-12"> 
    <ul class="pagination pagination-centered"> 
    {% if paginator.total_pages > 5 %} 
    {% if paginator.previous_page %} 
     <li> 
      <a href="{{ site.url }}/">&laquo;&laquo;</a> 
     </li> 
    {% else %} 
     <li class="disabled"> 
     <a>&laquo;&laquo;</a> 
     </li> 
    {% endif %} 
    {% endif %} 
    {% if paginator.previous_page %} 
     {% if paginator.previous_page == 1 %} 
     <li> 
      <a href="/">&laquo;</a> 
     </li> 
     {% else %} 
     <li> 
      <a href="/page{{paginator.previous_page}}">&laquo;</a> 
     </li> 
     {% endif %} 
    {% else %} 
     <li class="disabled"> 
     <a href="#">&laquo;</a> 
     </li> 
    {% endif %} 
    {% if page_start == 1 %} 
    {% assign page_end = paginator.page | plus: 4 %} 
    {% assign page_start = 2 %} 
    {% if paginator.page == 1 %} 
     <li class="active"> 
     <a href="#">1</a> 
     </li> 
    {% else %} 
     <li> 
     <a href="/">1</a> 
     </li> 
    {% endif %} 
    {% endif %} 
    {% for count in (page_start..page_end) %} 
     {% if count == paginator.page %} 
     <li class="active"> 
      <a href="#">{{count}}</a> 
     </li> 
     {% else %} 
     <li> 
      <a href="/page{{count}}">{{count}}</a> 
     </li> 
     {% endif %} 
    {% endfor %} 
    {% if paginator.next_page %} 
     <li> 
     <a href="/page{{paginator.next_page}}">&raquo;</a> 
     </li> 
    {% else %} 
     <li class="disabled"> 
     <a href="#">&raquo;</a> 
     </li> 
    {% endif %} 
    {% if paginator.total_pages > 5 %} 
    {% if paginator.next_page %} 
     <li> 
     <a href="{{ site.url }}/page{{paginator.total_pages}}">&raquo;&raquo;</a> 
     </li> 
    {% else %} 
     <li class="disabled"> 
     <a>&raquo;&raquo;</a> 
     </li> 
    {% endif %} 
    {% endif %} 
    </ul> 
</div> 
{% endif %} 
{% endif %}