从SQLITE数据库逐步显示数据

Question

我希望能够一次显示我的SQL数据库五的值，然后按钮单击可以显示下五个，直到我显示所有课程。现在，这就是我试图显示它们的方式：

 <%= form_for(Stc.new, action:'stcs#create') do |form| %>
 <%= collection_check_boxes(:course_id, Course.all, :id, :title,{}) do 
 |form| %>

 form.label { form.check_box }

 <% end %>
 <%= form.collection_select(:course_id, Course.all,:id, :title, {}, { 
 :multiple => false}) %>

 <%= form.select(:semester, options_for_select([['Fall', 'Fall'], 
 ['Spring', 'Spring'],['Summer', 'Summer']]), :id => 'sel1') %>

 <%= form.select(:year, options_for_select([['2012', '2012'], ['2013', 
'2013'], ['2014', '2014'], ['2015', '2015'], ['2016', '2016'], ['2017', 
'2017']]), :id => 'sel2') %>

<%= form.select(:user_id, options_for_select([[1,@user.id]])) %>
<div class="actions">

 <form id="my_sample_form">
</form>

  <input type="submit" value="Submit" form="my_sample_form">

   <% end %>
 </div>

Answer 1

我想您想在这里进行分页，您可以使用宝石为此一个宝石是" will_paginate"宝石。

阅读有关https://github.com/mislav/will_paginate

Answer 2

您可以尝试使用Kaminari Gem进行分页。引用此：

https://github.com/kaminari/kaminari