Warning: file_get_contents(/data/phpspider/zhask/data//catemap/2/ruby-on-rails/60.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
Ruby on rails rails渲染部分集合？_Ruby On Rails_Ruby On Rails 4 - Fatal编程技术网
Fatal编程技术网

Ruby on rails rails渲染部分集合？

ruby-on-rails ruby-on-rails-4

Ruby on rails rails渲染部分集合？,ruby-on-rails,ruby-on-rails-4,Ruby On Rails,Ruby On Rails 4,有没有更好的方法来呈现3行3行，而无需专门调用按3分组的项 <div class="row"> <%= render partial: 'thumbnail', collection: @pages[0..2] %> </div> <div class="row"> <%= render partial: 'thumbnail', collection: @pages[3..5] %> </div> <di

有没有更好的方法来呈现3行3行，而无需专门调用按3分组的项

<div class="row">
  <%= render partial: 'thumbnail', collection: @pages[0..2] %>
</div>

<div class="row">
  <%= render partial: 'thumbnail', collection: @pages[3..5] %>
</div>

<div class="row">
  <%= render partial: 'thumbnail', collection: @pages[6..8] %>
</div>
您可以在的组中使用：

<% @pages.in_groups_of(3) do |group| %>
  <%= render partial: 'thumbnail', collection: group %>
<% end %>