anchor.diff:  				<% list_book = (list.list_books & @book.list_books)[0] %>
   				<li>
   					<%= link_to list, list %>
  -					<%= link_to 'Remove', polymorphic_url(list_book, book: @book.id), {
  -																method: :delete, class: 'btn btn-danger btn-xs',
  -																data: {confirm: "Are you sure you want to remove #{@book} from #{list}?"}
  -															} %>
  +					<%= render 'shared/delete_button', button_text: 'Remove', delete_url: polymorphic_url(list_book, book: @book.id), confirm_text: "Are you sure you want to remove #{@book} from #{list}?" %>
   				</li>
   	 		<% end %>
   	 	</ul>
  
positive.code: 			<% @book.book_locations.each do |book_location| %>
  				<li>
  					<%= link_to "#{book_location.location} - #{book_location.calculated_call_num}", edit_polymorphic_url(book_location, book: @book.id) %>
  					<%= link_to 'Remove', polymorphic_url(book_location, book: @book.id), {
  																method: :delete, class: 'btn btn-danger btn-xs',
  																data: {confirm: "Are you sure you want to remove #{@book} from #{book_location.location}?"}
  															} %>
  				</li>
  	 		<% end %>
  	 	</ul>
  
negative.code: 			<% @book.ratings.each do |rating| %>
  				<li>
  					<%= link_to rating, rating %>
  					<%= render 'shared/delete_button', button_text: 'Delete', delete_url: polymorphic_url(rating, book: @book.id), confirm_text: "Are you sure you want to delete #{rating}?" %>
  				</li>
  			<% end %>
  		</ul>
  