我用 webpacker 创建了示例项目 react-rails。但显示错误“未捕获的 ReferenceError:未定义人员”。帮助我如何在 webpacker 中使用 react-rails?我执行的处理如下。
导轨版本
$ rails -v
Rails 5.0.2
宝石版
react-rails (2.1.0)
webpacker (1.1)
创建 Rails 项目
$ rails new example
将 webpacker 和 react-rails 添加到 Gemfile
gem 'webpacker', github: 'rails/webpacker'
gem "react-rails"
安装 webpacker 并做出反应
$ rails webpacker:install
$ rails webpacker:install:react
$ rails generate react:install
创建控制器
$ bin/rails g controller home
添加路线
config/routes.rb
root "home#index"
添加反应组件
$ bin/rails g react:component person name --es6
添加 react_component 标签
app/views/home/index.html.erb
<%= react_component("Person", { name: "Hello" }) %>
将 javascript_pack_tag 添加到 application.html.erb
app/views/layouts/application.html.erb
<%= javascript_pack_tag 'application' %>
运行服务器
$ bin/rails s
$ bin/webpack-dev-server
显示错误控制台
VM27375:1 Uncaught ReferenceError: Person is not defined
at eval (eval at module.exports (fromGlobal.js?fc31:13), <anonymous>:1:1)
at module.exports (fromGlobal.js?fc31:13)
at Object.getConstructor (fromRequireContextWithGlobalFallback.js?cbbb:16)
at Object.mountComponents (index.js?c0e8:82)
at HTMLDocument.ReactRailsUJS.handleMount (index.js?c0e8:124)
at HTMLDocument.dispatch (jquery.self-bd7ddd3….js?body=1:5227)
at HTMLDocument.elemData.handle (jquery.self-bd7ddd3….js?body=1:4879)
示例项目