will_paginate undefined method error - Ruby on Rails

Posted by bgadoci on Stack Overflow See other posts from Stack Overflow or by bgadoci
Published on 2010-04-15T04:46:53Z Indexed on 2010/04/15 4:53 UTC
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I just installed the gem for will_paginate and it says that it was installed successfully. I followed all the instructions listed with the plugin and I am getting an 'undefined method `paginate' for' error. Can't find much in the way of Google search and haven't been able to fix it myself (obviously). Here is the code:

PostsController

def index
    @tag_counts = Tag.count(:group => :tag_name, :order => 'updated_at DESC', :limit => 10)
    @posts = Post.paginate :page => params[:page], :per_page => 50

    respond_to do |format|
      format.html # index.html.erb
      format.xml  { render :xml => @posts }
      format.json { render :json => @posts }
      format.atom
    end
  end

/model/post.rb

class Post < ActiveRecord::Base
  validates_presence_of :body, :title
  has_many :comments, :dependent => :destroy
  has_many :tags, :dependent => :destroy

  cattr_reader :per_page
    @@per_page = 10

end

/posts/views/index.html.erb

  <%= will_paginate @posts %>

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