方法
实例公共方法
action_cable_meta_tag() 链接
返回一个“action-cable-url”元标签,其值为配置中指定的 URL。 确保此标签位于您的 JavaScript 标签之上
<head>
<%= action_cable_meta_tag %>
<%= javascript_include_tag 'application', 'data-turbo-track' => 'reload' %>
</head>
然后,Action Cable 使用它来确定 WebSocket 服务器的 URL。 您的 JavaScript 随后可以连接到服务器,而无需直接指定 URL
import Cable from "@rails/actioncable"
window.Cable = Cable
window.App = {}
App.cable = Cable.createConsumer()
确保在每个环境配置文件中指定正确的服务器位置
config.action_cable.mount_path = "/cable123"
<%= action_cable_meta_tag %> would render:
=> <meta name="action-cable-url" content="/cable123" />
config.action_cable.url = "ws://actioncable.com"
<%= action_cable_meta_tag %> would render:
=> <meta name="action-cable-url" content="ws://actioncable.com" />
来源: 显示 | 在 GitHub 上
# File actioncable/lib/action_cable/helpers/action_cable_helper.rb, line 36 def action_cable_meta_tag tag "meta", name: "action-cable-url", content: ( ActionCable.server.config.url || ActionCable.server.config.mount_path || raise("No Action Cable URL configured -- please configure this at config.action_cable.url") ) end