Rails Not database model

Active::Model::Model

Not database model
Example) SearchKeyword

class SearchKeyword
  include ActiveModel::Model
  attr_accessor :keyword
  validates :keyword, presence: true
end

Create Form for it
record_controller.rb

def keywd
  @search = Searchword.new  # form
end

def keywd_process
  @search = Serrchword.new(params[:search_keyword])
  if @search.valid?
    render text: @search.keyword
  else
    render text: @search.errors.full_messages[0]
  end
end

View

<%= form_for @search, url: { action: :keywd_process } do |f| %>
  <%= f.text_field :keyword, size: 25 %>
  <%= f.submit 'Search' %>
<% end %>