How to get hidden field array value using Rails 3 - ruby

Question

I have a hidden field in my table.I need to access all array value into controller's action method in rails.Check my below table.
paymentresult.html.erb:
<%= form_for :add_payment,:url => {:action => 'add_payment' },remote: true do |f| %>
<table class="table table-bordered">
<colgroup>
<col class="col-md-1 col-sm-1">
<col class="col-md-1 col-sm-1">
<col class="col-md-3 col-sm-3">
<col class="col-md-3 col-sm-3">
<col class="col-md-4 col-sm-4">
</colgroup>
<thead>
<tr>
<th class="text-center"><input type="checkbox"></th>
<th class="text-center">Sl. No</th>
<th class="text-center">Date</th>
<th class="text-center">Receipt No.</th>
<th class="text-center">Amount</th>
</tr>
</thead>
<tbody>
<% #result.each do |r| %>
<%= hidden_field_tag 'infos[]', r %>
<tr>
<th class="text-center"><%= check_box_tag :check_value, 1, :id => "checkbox1-1" %></th>
<td class="text-center"><%= r.id %></td>
<td class="text-center"><%= r.c_date %></td>
<td class="text-center"><%= r.Receipt_No %></td>
<td class="text-center"><i class="fa fa-rupee"></i><%= r.v_amount %></td>
</tr>
<% end %>
</tbody>
</table>
<%= f.submit "Add to payment",:class => "btn btn-success",:id => "switch_car11" %>
<% end %>
payment_controller.rb
class PaymentsController < ApplicationController
def add_payment
if params[:commit]
params[:check_value] == '1' ? remember : forget
else
if params[:add_payment][:p_catagory]=="Cheque"
#chk=true
end
end
end
private
def remember
#reslt=params[:infos]
#add_payment=AddPayment.create(:p_catagory => params[:add_payment][:p_catagory],:paid_amount => "here i want to add the table's v_amount value",:total_claim => 1 )
end
end
add_payment.rb:
class AddPayment < ActiveRecord::Base
attr_accessible :chk_details, :chk_no, :p_catagory, :paid_amount, :total_claim
end
I need when user will click on submit button then all array value(i.e-#result) should fetch to add_payment method.I tried by using hidden field but failed to fetch all data.Here my requirement is after submitting the form all value of #resultshould fetch into controller method so that i can save some value from this in DB.