RoRのページネーションが機能していません

Question

私は小さなRuby-on-Railsプログラムに取り組んでおり、ページ区切りの問題を抱えていました。ページネーションのための宝石をインストールした後：

gem 'will_paginate', '3.0.7' 
gem 'bootstrap-will_paginate', '0.0.10' 

私はこれにコントローラクラスを変更：

def index 
    @allArticles = Article.paginate(page: params[:page], per_page: 5) 
end 

そして、これにhtml.erbファイルを変更：

<div align="center"> 
    <%= will_paginate %> 
</div> 

<%= render 'article', obj: @allArticles %> 

<div align="center"> 
    <%= will_paginate %> 
</div> 

私は実行サーバーがローカルに私にこの問題を与える：

=> Booting Puma 
=> Rails 5.0.0 application starting in development on http://localhost:3000 
=> Run `rails server -h` for more startup options 
Exiting 
/home/inson/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.0/lib/active_support/i18n_railtie.rb:45:in `map': undefined method `existent' for #<String:0x00000004c89818> (NoMethodError) 
Did you mean? extend 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.0/lib/active_support/i18n_railtie.rb:45:in `block in initialize_i18n' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.0/lib/active_support/i18n_railtie.rb:41:in `each' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.0/lib/active_support/i18n_railtie.rb:41:in `initialize_i18n' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.0/lib/active_support/i18n_railtie.rb:15:in `block in <class:Railtie>' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.0/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.0/lib/active_support/lazy_load_hooks.rb:45:in `block in run_load_hooks' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.0/lib/active_support/lazy_load_hooks.rb:44:in `each' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.0/lib/active_support/lazy_load_hooks.rb:44:in `run_load_hooks' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0/lib/rails/application/finisher.rb:65:in `block in <module:Finisher>' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0/lib/rails/initializable.rb:30:in `instance_exec' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0/lib/rails/initializable.rb:30:in `run' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0/lib/rails/initializable.rb:55:in `block in run_initializers' 
    from /home/inson/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:228:in `block in tsort_each' 
    from /home/inson/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component' 
    from /home/inson/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:431:in `each_strongly_connected_component_from' 
    from /home/inson/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:349:in `block in each_strongly_connected_component' 
    from /home/inson/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:347:in `each' 
    from /home/inson/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:347:in `call' 
    from /home/inson/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:347:in `each_strongly_connected_component' 
    from /home/inson/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:226:in `tsort_each' 
    from /home/inson/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:205:in `tsort_each' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0/lib/rails/initializable.rb:54:in `run_initializers' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0/lib/rails/application.rb:352:in `initialize!' 
    from /home/inson/Desktop/Ruby/code/rails-projects/alpha-blog/config/environment.rb:5:in `<top (required)>' 
    from /home/inson/Desktop/Ruby/code/rails-projects/alpha-blog/config.ru:3:in `require_relative' 
    from /home/inson/Desktop/Ruby/code/rails-projects/alpha-blog/config.ru:3:in `block in <main>' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/rack-2.0.1/lib/rack/builder.rb:55:in `instance_eval' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/rack-2.0.1/lib/rack/builder.rb:55:in `initialize' 
    from /home/inson/Desktop/Ruby/code/rails-projects/alpha-blog/config.ru:in `new' 
    from /home/inson/Desktop/Ruby/code/rails-projects/alpha-blog/config.ru:in `<main>' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/rack-2.0.1/lib/rack/builder.rb:49:in `eval' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/rack-2.0.1/lib/rack/builder.rb:49:in `new_from_string' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/rack-2.0.1/lib/rack/builder.rb:40:in `parse_file' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/rack-2.0.1/lib/rack/server.rb:318:in `build_app_and_options_from_config' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/rack-2.0.1/lib/rack/server.rb:218:in `app' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0/lib/rails/commands/server.rb:59:in `app' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/rack-2.0.1/lib/rack/server.rb:353:in `wrapped_app' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0/lib/rails/commands/server.rb:124:in `log_to_stdout' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0/lib/rails/commands/server.rb:77:in `start' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0/lib/rails/commands/commands_tasks.rb:90:in `block in server' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0/lib/rails/commands/commands_tasks.rb:85:in `tap' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0/lib/rails/commands/commands_tasks.rb:85:in `server' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0/lib/rails/commands/commands_tasks.rb:49:in `run_command!' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/railties-5.0.0/lib/rails/commands.rb:18:in `<top (required)>' 
    from /home/inson/Desktop/Ruby/code/rails-projects/alpha-blog/bin/rails:9:in `require' 
    from /home/inson/Desktop/Ruby/code/rails-projects/alpha-blog/bin/rails:9:in `<top (required)>' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/spring-1.7.2/lib/spring/client/rails.rb:28:in `load' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/spring-1.7.2/lib/spring/client/rails.rb:28:in `call' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/spring-1.7.2/lib/spring/client/command.rb:7:in `call' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/spring-1.7.2/lib/spring/client.rb:30:in `run' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/spring-1.7.2/bin/spring:49:in `<top (required)>' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/spring-1.7.2/lib/spring/binstub.rb:11:in `load' 
    from /home/inson/.rvm/gems/ruby-2.3.0/gems/spring-1.7.2/lib/spring/binstub.rb:11:in `<top (required)>' 
    from /home/inson/Desktop/Ruby/code/rails-projects/alpha-blog/bin/spring:13:in `require' 
    from /home/inson/Desktop/Ruby/code/rails-projects/alpha-blog/bin/spring:13:in `<top (required)>' 
    from bin/rails:3:in `load' 
    from bin/rails:3:in `<main>' 

なぜ私に問題があるのか​​わかりません。

Answer 1

開発中の小さなAPIに同じプラグインを使用していました。ここで私はあなたの設定ファイルのグローバルパラメータを変更することができますwill-paginate

# GET /posts 
     def index @posts = paginate Post.all, per_page: 10 
      render :json => { 
          :data => @posts, 
          :success => true 
      } 
     end 

を使用する方法に小さな抜粋です。あるいは、変数を設定するときのように、特定のパラメータを明示的に設定することもできます。

希望すると助かります！