updating one record in a db

helps_controller.rb

  def update
    d { @help }
    respond_to do |format|
      if @help.update(help_params)
        format.html { redirect_to @help, notice: 'Help was successfully updated.' }
        format.json { render :show, status: :ok, location: @help }
        #redirect_to action: "index"
      else
        format.html { render :edit }
        format.json { render json: @help.errors, status: :unprocessable_entity }
        #redirect_to action: "index"
      end
    end
  end

indexview.html.erb

<% @help = Help.find_by_id(1) %>
<%= bootstrap_form_for(@help) do |f| %>
              <% if @help.errors.any? %>
                <div id="error_explanation">
                  <h2><%= pluralize(@help.errors.count, "error") %> prohibited this tax rate from being saved:</h2>
                  <ul>
                  <% @help.errors.full_messages.each do |message| %>
                    <li><%= message %></li>
                  <% end %>
                  </ul>
                </div>
              <% end %>
              <%= f.hidden_field :id %>
              <div class="field">
                <%= f.text_field :gst, label: "GST", :min => 0 %>
              </div>
              <div class="field">
                <%= f.text_field :qst, label: "QST", :min => 0  %>
              </div>
              <div class="actions">
                <% d { @help } %>
                <%= f.submit 'Update Help', :class=>"btn btn-success navbar-btn" %>
              </div>
             
            <% end %>