Rails: will_paginate + simple search engine error: undefined method `total_pages' - ruby-on-rails

Question

on my users index page I am trying to have a search engine at the top so that you can search a user by email instead of scanning through the whole list. However, I am getting the error:
undefined method 'total_pages'
when I search any term.
Can anyone help? Thanks!
users/index.html.erb
<h1>All users</h1>
<%= form_tag users_path, :method => "get" do %>
<%= label_tag(:search, "Search for user by email:") %>
<%= text_field_tag :search, params[:search] %>
<%= submit_tag "Search", :name => nil %>
<% end %>
<%= will_paginate #users %>
<br>
<% #users.each do |user| %>
<div>
<%= link_to (image_tag user.profilepic? ? user.profilepic : "questionmark.png", :size => "50x50"), user_path(user) %>
<%= link_to user.name, user_path(user) %> (<%= user.email %>)
<% unless current_user.friends.include?(user) || current_user == user %>
<span class="floatright"><%= link_to "Add friend", user_friends_path(:user_id => current_user.id, :friend_id => user.id), :method => :post %></span>
<% end %>
<% if current_user.friends.include?(user) %>
<span class="floatright"><%= link_to "Remove friend", user_friends_path(:user_id => current_user.id, :friend_id => user.id), :method => :delete, :confirm => "Are you sure you want to remove #{user.name} from your friends?" %></span>
<% end %>
</div>
<% end %>
users controller
def index
if params[:search]
#users = User.search(params[:search])
else
#users = User.order("email").page(params[:page]).per_page(10)
end
end
user model
def self.search(search)
find(:all, :conditions => ['email LIKE ?', "%#{search}%"])
end

Answer 1

You're not calling a pagination method in #users = User.search(params[:search]). Try adding the .page(params[:page]).per_page(10) and see if that works.
UPDATE:
Sorry, I forgot .find returns an array and not a relation. Change your search method to this:
def self.search(search)
where('email LIKE ?', "%#{search}%")
end