hitting the db

gistfile1.rb

# routes
  post 'todos/:id/pinned', to: 'todos#pinned', as: :pinned_todo
  post 'todos/:id/unpin', to: 'todos#unpin', as: :unpin_todo

# controller 
  def pinned
    flash[:notice] = 'Todo pinned for today'
    @todo.pinned = true
    @todo.save
    redirect_to root_path
  end
  
# view
  
  <% if todo.pinned? %>
    <%= link_to unpin_todo_path(todo), method: :post, class: "btn btn-sm btn-default pinned" do %>
        <i class="fa fa-thumb-tack"></i>
    <% end %>
  <% else %>
    <%= link_to pinned_todo_path(todo), method: :post, class: "btn btn-sm btn-default" do %>
        <i class="fa fa-thumb-tack"></i>
    <% end %>
  <% end %>