Question

超文本/安装指南显示了如何将超文本添加到现有的Rails应用程序。我已经到了可以像以前那样启动旧版应用程序的地步，但是无法解析图像资源的路由。我想我只是没有正确设置路线，另一方面，我从指南中所讲的内容都没有改变。这是Hyperstack的第一步，它看起来很明显，但是并没有屈服于我到目前为止尝试过的简单测试。

routes.rb

    Rails.application.routes.draw do

    mount Hyperstack::Engine => '/hyperstack'  # this route should be first in the routes file so it always matches

/hyperstack/hyper_component.rb

# app/hyperstack/hyper_component.rb
class HyperComponent
  # All component classes must include Hyperstack::Component
  include Hyperstack::Component
  # The Observable module adds state handling
  include Hyperstack::State::Observable
  # The following turns on the new style param accessor
  # i.e. param :foo is accessed by the foo method
  param_accessor_style :accessors
end

/components/shipment.rb

class Shipment < HyperComponent

  # param :my_param
  # param param_with_default: "default value"
  # param :param_with_default2, default: "default value" # alternative syntax
  # param :param_with_type, type: Hash
  # param :array_of_hashes, type: [Hash]
  # other :attributes  # collects all other params into a hash
  # fires :callback  # creates a callback param

  # access params using the param name
  # fire a callback using the callback name followed by a !

  # state is kept and read as normal instance variables
  # but when changing state prefix the statement with `mutate`
  # i.e. mutate @my_state = 12
  #      mutate @my_other_state[:bar] = 17

  # the following are the most common lifecycle call backs,
  # delete any that you are not using.
  # call backs may also reference an instance method i.e. before_mount :my_method

  before_mount do
    # any initialization particularly of state variables goes here.
    # this will execute on server (prerendering) and client.
  end

  after_mount do
    # any client only post rendering initialization goes here.
    # i.e. start timers, HTTP requests, and low level jquery operations etc.
  end

  before_update do
    # called whenever a component will be re-rerendered
  end

  before_unmount do
    # cleanup any thing before component is destroyed
    # note timers are broadcast receivers are cleaned up
    # automatically
  end

  render do
    DIV do
      'Shipment'
    end
  end
end

从头开始的命令行

$ bundle exec foreman start
...
ActionView::Template::Error (couldn't find file 'client_and_server-e8a2a4c02f7542e3e05c' with type 'application/javascript'
...

，然后在命令行中，

/Users/john/.rvm/gems/ruby-2.6.2/gems/bootstrap-4.3.1/assets/stylesheets
16:45:00 web.1        |   /Users/john/.rvm/gems/ruby-2.6.2/gems/bootstrap-4.3.1/assets/javascripts):
16:45:00 web.1        |     10: 
16:45:00 web.1        |     11:  
16:45:00 web.1        |     12:   // search path default is public/images
16:45:00 web.1        |     13:   = image_tag "Drayage-LongBeach.jpg", :size => "520x360" 
16:45:00 web.1        |     14:   %p
16:45:00 web.1        |     15:   %p
16:45:00 web.1        |     16:

Answer 1

基于无法找到打包清单文件的事实（我之前曾假设过），我怀疑您使用的是webpacker <4.0。

Webpacker现在将捆绑软件存储在/javascripts/js中，而不仅仅是/javscripts/中，而超级堆栈安装程序会假定这样做。

保持Webpack的当前版本

进入config/initializers/assets.rb，您将在结尾看到这样的一行

Rails.application.config.assets.paths << Rails.root.join('public', 'packs', 'js').to_s

只需删除, 'js'，它将与旧的webpacker一起使用。

config/environments/test.rb中还有一条类似的行需要修改，以使超规格正常工作。

升级Webpack（推荐-您迟早要这样做）

或者您可以将webpacker升级到〜> 4.0。

您需要为两个冲突都回答“ Y”，然后还必须删除.babelrc文件（如果存在），最后运行bin/webpack

更新您的Gemfile
bundle install
bundle exec rails webpacker:install 对两个冲突都回答Y
删除.babelrc（如果存在）
运行bin/webpack

这应该可以成功将webpacker升级到4.x，并且现在一切都可以了。

Hyperstack找不到登录页面资源

1 个答案: