Question

我已开始使用rails，我试图从rails控制器调用javascript 结构如下

app/controllers/ hello_controller.rb def search //calling show.js.erb end app/views/hello/show.js.erb

基本上我想从javascript调用html文件（div标签）

The point is i want to do nothing when the page is opened , but to run the javascript when show button is hit
同一点 - 在控制器中写入

respond_to do |format| format.html{ } format.js{ render template: 'show', layout: false } end

并在show.js.erb中写道警报（ “你好”）;

不工作！

Answer 1

class HelloController < ApplicationController
  def search
   respond_to do |format|
     format.js{ render template: 'show', layout: false }
   end
  end
end

Answer 2

最简单的方法如下：

def search
  @var = Model.where(name: params[:search]) # will be available in search.js.erb
  respond_to :js # will try to render search.js.erb in views/hello/
end

您可以渲染自定义js文件：

def search
  # some code..
  respond_to :js { render 'show' }
end

Answer 3

在您的控制器中

将类似的代码放入您的应用程序套件中

respond_to do |format|
  format.js # actually means: if the client ask for js -> return file.js
end

从rails控制器调用javascript

3 个答案: