How to delete multiple records using check_box_tag and link_to - Rails4

Question

In my routes I have

delete 'boshu_hombu/delete_data', :as => :delete_data

In my controller, the delete method

def delete_data
  if params[:boshus]
    BoshuHombu.where(id: params[:boshus]).destroy_all
  end  
  redirect_to edit_all_path
end

In my views I am selecting multiple records for delete using checkbox, I have a button to invoke delete action

<%= link_to '削除',  { action: :delete_data}, method: :delete,
 data: { confirm: 'Are you sure?' }, :class => 'btn btn-danger' %>
<% @get_boshu_data.each do |user| %>
  <tr>
    <td><%= check_box_tag "boshus[]", user.id %></td>
    <td><%= user.id %></td>
    <td><%= user.kyujin_site %></td>
  <tr/>
<% end %>

but how to get the selected values in my controller's delete_data action. How to go about this ? thank you

Answer 1

try this:

<%= link_to '削除',  { action: :delete_data}, method: :delete,
 data: { confirm: 'Are you sure?' }, :class => 'btn btn-danger', id:'delete' %>
<% @get_boshu_data.each do |user| %>
  <tr>
    <td><%= check_box_tag "boshus[]", user.id, false, class: 'check' %></td>
    <td><%= user.id %></td>
    <td><%= user.kyujin_site %></td>
  <tr/>
<% end %>

<script>
$(document).ready(function(){
 var href = $('#delete').attr('href')

 $('#delete').on('click',function(){
   var newHref = href + '?'
   $('.check').each(function(){
    if ($(this).prop('checked') == true) newHref+='boshus%5B%5D='+$(this).val()+'&'
   });
   $('#delete').attr('href',newHref)

 });

});
</script>