rails 4 will_paginate自定义记录第二页未显示

Question

I have created a custom search of books according to the criteria the user enters and I use will_paginate to show them. However, even though the first page shows ok, when I choose the second the following error message appears:

Couldn't find Book with id=show_search_by_title` in show method
def show
  @book = Book.find(params[:id])
  authorize! :read, @book
end 

In the books_controller there is the following method:

def show_search_by_title
  q = params[:book][:title]
  books = Book.where('title LIKE ?', "%#{q}%")
  @books = books.paginate(page: params[:page], per_page: 10)
end

and the corresponding .erb file is the following:

<% if @books.empty? %>
  There are no books in the Library that fulfill the given criteria
<% else %>
  <%= will_paginate @books %>

The books that complete the given criteria are the following:

<table>    
<tr>
  <th> Book Title </th> <th> Author </th> <th> Category </th> <th> copies </th> <th> Rank </th>
</tr>

<% @books.each do |book| %>

<tr>
  <td><%=book.title %> </td>
  <td><%=book.author.name %> </td>
  <td><%=book.cat.description %></td>
  <td><%=book.copies %>  </td>
  <td><%=book.rank %> </td>
</tr>
<% end %>
</table>

<%= will_paginate @books %>

<% end %>

Thank you very much in advance.

my routes for books are:

view_books_books_path            GET    /books/view_books(.:format) books#view_books
rank_book_books_path             GET    /books/rank_book(.:format) books#rank_book
update_book_rank_books_path      PATCH  /books/update_book_rank(.:format) books#update_book_rank
search_by_title_books_path       GET    /books/search_by_title(.:format) books#search_by_title
search_by_author_books_path      GET    /books/search_by_author(.:format) books#search_by_author
show_search_by_title_books_path  GET    /books/show_search_by_title(.:format) books#show_search_by_title
show_search_by_author_books_path POST   /books/show_search_by_author(.:format) books#show_search_by_author
books_path                       GET    /books(.:format)    books#index
                                 POST   /books(.:format)    books#create
new_book_path                    GET    /books/new(.:format)    books#new
edit_book_path                   GET    /books/:id/edit(.:format) books#edit
book_path                        GET    /books/:id(.:format)    books#show 

shows the error in show method:

def show
  @book = Book.find(params[:id])
  authorize! :read, @book
end 

Answer 1

You need to specify the action in the options for will_paginate https://github.com/mislav/will_paginate/wiki/API-documentation#will_paginatecollection-options . What is the path of the link for the "next" button?