weixin_33691700 2016-03-25 18:37 采纳率: 0%
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在AJAX内部回调

In my application I am calling an AJAX request and after that request happens I would like to redirect to a different path. The issue I'm having is I don't exactly know how to do this. I was told been hinted to that I could "render json and respond to it inside the callback of the ajax request.", but I have been trying for quite a while and don't quite get it.

AJAX:

    $.ajax({
      url: sub_url,
      type: 'POST',
      data: form_data
    }).success(function(){
      //stuff
    }).fail(function(){
      //stuff
    });

Update action:

def update    
  current_submission.update_attributes(secret_params)    

  render :json => { :message => "Success!" }
end

My AJAX request and render json all work fine, I'm lost on how to redirect though. Simply putting redirect_to in the update method does nothing. The only solution I have found so far is this:

respond_to do |format|
  format.js { render js: "window.location.href = '#{mypath_path}'" }
end

which I was told was bad practice and I assumed so when I found the code.

A little push in the right direction would be great, I am still not fully aware of how/when/what order the AJAX request and the rails action fire.

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    Return info about the path that you wish to redirect to in the JSON response:

    def update    
      current_submission.update_attributes(secret_params)    
    
      render :json => { :new_path => "#new_path" }
    end
    

    Then use location.replace() within the success function to update the browser url:

    $.ajax({
      url: sub_url,
      type: 'POST',
      data: form_data
    }).success(function(d){
      // update location on success
      location.replace(d.new_path);
    }).fail(function(){
      //stuff
    });
    
    评论

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