How to change values which get from check box into SQL condition? - ruby-on-rails

Question

I use check_box_tag to get selected beacon, and i to use collection_select to define a value. when user press the button, I want to all selected beacons change value into what collection_select choose, but I don't know how to use ids[] to set my condition like "where...in ..."
here is my action, I want params[:ids] change in to just like [1,2,3]
#beacons = Beacon.where(:id => params[:ids]).update_all(:installer_id => params[:account][:installer_id])
here is my table:
<table class="col-md-12 table-bordered table-striped table-condensed cf">
<thead class="cf">
<th>Check</th>
<th>BeaconUUID</th>
<th>BeaconCategory</th>
<th>BeaconLocate</th>
<th>BeaconName</th>
<th>BeaconAddress</th>
<th>Assign</th>
</thead>
<tbody>
<% #beacons.each do |beacon| %>
<tr>
<td><%= check_box_tag "ids[]", beacon.id %></td>
<td><%= beacon.beacon_uuid %></td>
<td><%= beacon.cid %></td>
<td><%= beacon.lid %></td>
<td><%= beacon.beacon_name %></td>
<td><%= beacon.beacon_address %></td>
<% if beacon.installer_id.nil? %>
<td>not assign</td>
<% else %>
<td>assigned:<%= beacon.installer_id %></td>
<% end %>
</tr>
<% end %>
</tbody>
</table>
<%= form_tag assigned_beacons_path, :method => 'post' do %>
<td><%= collection_select(:account, :installer_id, Account.where('manager_id = ?',session[:user_id]), :id, :email, {:prompt => 'choose!'}, :style => "width: 100px;") %></td>
<td><p data-placement="top" data-toggle="tooltip" title="Edit"><%= submit_tag 'assign', class: "btn btn-info btn-xs"%></p></td>
<% end %>

Answer 1

As was pointed out in comments, check_box_tag should be moved inside of form_tag block:
<%= form_tag assigned_beacons_path, :method => 'post' do %>
<table class="col-md-12 table-bordered table-striped table-condensed cf">
<thead class="cf">
<th>Check</th>
<th>BeaconUUID</th>
<th>BeaconCategory</th>
<th>BeaconLocate</th>
<th>BeaconName</th>
<th>BeaconAddress</th>
<th>Assign</th>
</thead>
<tbody>
<% #beacons.each do |beacon| %>
<tr>
<td><%= check_box_tag "ids[]", beacon.id %></td>
<td><%= beacon.beacon_uuid %></td>
<td><%= beacon.cid %></td>
<td><%= beacon.lid %></td>
<td><%= beacon.beacon_name %></td>
<td><%= beacon.beacon_address %></td>
<% if beacon.installer_id.nil? %>
<td>not assign</td>
<% else %>
<td>assigned:<%= beacon.installer_id %></td>
<% end %>
</tr>
<% end %>
</tbody>
</table>
<td><%= collection_select(:account, :installer_id, Account.where('manager_id = ?',session[:user_id]), :id, :email, {:prompt => 'choose!'}, :style => "width: 100px;") %></td>
<td><p data-placement="top" data-toggle="tooltip" title="Edit"><%= submit_tag 'assign', class: "btn btn-info btn-xs"%></p></td>
<% end %>
Also, dangling <td> blocks don't look good, you should move them into this or another <table> as well.