Question

我在使用动作电缆时遇到了麻烦，我在前端使用了JavaScript的Rails应用程序，我的前端连接到了动作电缆，但是方法received从未调用，而connected是调用，我从ActionCable接收ping。

这是我的JavaScript代码：

categories.js
$(document).ready(function () {
App.category = App.cable.subscriptions.create("CategoryChannel",
    {
        received: function(data) {
            console.log(data);
            alert("Category is done!");
        },
        disconnected: function() {
            console.log("We are not connected");
        },
        connected: function () {
            console.log("We are connected");
        }
    }
);
});

cable.js
// Action Cable provides the framework to deal with WebSockets in Rails.
// You can generate new channels where WebSocket features live using the `rails generate channel` command.
//
//= require action_cable
//= require_self
//= require_tree ./channels

(function() {
  this.App || (this.App = {});

  App.cable = ActionCable.createConsumer();

}).call(this);

这是我的频道：

category_channel.rb
class CategoryChannel < ApplicationCable::Channel
  def subscribed
    # stream_from "some_channel"
    stream_for 'categories'
  end

  def unsubscribed
    # Any cleanup needed when channel is unsubscribed
  end
end

我的红宝石代码：

categories_controller.rb
def create
  @category = Category.new(category_params)

  respond_to do |format|
    if @category.save
      ActionCable.server.broadcast 'categories', { category: @category }
      format.html { redirect_to @category, notice: 'Category was successfully created.' }
      format.json { render :show, status: :created, location: @category }
    else
      format.html { render :new }
      format.json { render json: @category.errors, status: :unprocessable_entity }
    end
  end
end

我的电缆。yml

development:
  adapter: redis
  url: <%= ENV.fetch("REDIS_URL") { "redis://localhost:6379/1" } %>

您有帮助我的想法吗？

今天愉快。

Rails ActionCable没有发送数据（前端javascript）

0 个答案: