Question

How do I convert the resultset of @recipe.components.find ( [# <Component ingredient_id: 1>, # <Component> ingredient_id: 2>] ) to an array such as [1,2]

<% @ingredients.each do |ingredient| %>
  <div class="field">
  <%= check_box_tag 'ingredients[]', ingredient.id, @recipe.components.find(:all, :select => "ingredient_id").include?(ingredient.id) %><%= ingredient.name %>
  </div>
<% end %>

Thanks!

Answer 1

you can use

@result.map {|i| i.ingredient_id }