Question

我在Rails 4（rc1）应用程序中安装了mini-profiler gem但是当我加载应用程序时，它没有在浏览器中显示带有加载时间统计信息的小窗口。

根据我正在观看的Railscast，它应该在将它添加到gemfile，运行bundle并重新启动应用程序后开始工作。

你能建议我做些什么才能让它发挥作用吗？

的Gemfile

gem 'rails', '4.0.0.rc1'

gem 'devise', '3.0.0.rc'
gem "rolify"
gem  'cancan'
gem 'simple_form', '3.0.0.rc'
gem 'backbone-on-rails'
gem 'geocoder'
gem 'pg_search'
gem 'sidekiq'

gem 'gmaps4rails'

# Use postgresql as the database for Active Record
gem 'pg'
gem 'will_paginate'
gem "figaro", ">= 0.6.3"
gem 'stripe'
gem "stripe_event"
gem 'jquery-turbolinks'
gem 'dalli'


# Use SCSS for stylesheets
gem 'sass-rails', '~> 4.0.0.rc1'

# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'

# Use CoffeeScript for .js.coffee assets and views
gem 'coffee-rails', '~> 4.0.0'

# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby

# Use jquery as the JavaScript library
gem 'jquery-rails'



# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'

# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 1.0.1'

group :doc do
  # bundle exec rake doc:rails generates the API under doc/api.
  gem 'sdoc', require: false
end
gem 'rack-mini-profiler'

Answer 1

我只是想抛弃我今天学到的东西，因为我正努力让机架迷你探测器工作，希望它能帮助别人。

如果您使用的是Rack :: Deflater，则会导致它无法将探查器插入体内。经过相当多的挖掘后，我发现在v0.9.2中，它正在重新响应主体并插入自身。使用Rack :: Deflater，正文是二进制格式，正则表达式永远不会成功找到插入自身的适当位置。

我所做的只是将配置行移动到environment / production.rb

config.middleware.use Rack::Deflater

Answer 2

我遇到了同样的问题，并将其添加到config.ru：

require 'rack-mini-profiler'
use Rack::MiniProfiler

Answer 3

对我来说，我正在使用heroku-deflater。我把那个宝石搬进了生产宝石组：

group :production do
  # ...
  gem 'heroku-deflater', '~> 0.5'
end

... and rack-mini-profiler开始工作。

如何让mini-profiler在rails中启动

3 个答案: