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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