Ruby on Rails

{"utf8"=>"✓",
 "authenticity_token"=>"fB/ZNf3dnFz9OVa/h34xbNysN0AlxcIiPs=",
 "f"=>[{"columns_id"=>"4",
 "column_value"=>"rrr",
 "users_id"=>"2"},
 {"columns_id"=>"5",
 "column_value"=>"ttt",
 "users_id"=>"2"}],
 "commit"=>"Save changes"}


I want to store object values but how to store multiple record at same
time using controller.

my controller code -

def create
  params[:f].each do |user_params|
       Detail.new(user_params).save
  end
end


my view code -

<%= form_for(:detail, :url => {:controller => 'details', :action =>
'create'})  do %>
  <% @info.each do |article| %>
    <%= hidden_field_tag "f[][columns_id]", article.id   %>
    <p>
      <td><%= article.value %></td>
      <td><%= text_field_tag "f[][column_value]" %></td>
    </p></br>
    <%= hidden_field_tag "f[][users_id]", current_user.id  %>
  <% end %>
  <p class="button"><%= submit_tag %></p>
<% end %>

Its gives error ActiveModel::ForbiddenAttributesError  how to solve
please help me

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