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I'm trying to show a flash message and render it with Ajax, but the message does not seem to be appearing until after I refresh the page.

Here's my create.rjs file:

page.insert_html :top, :feed_items, :partial => 'shared/feed_item', :object => @micropost
page.replace_html :user_info, pluralize(current_user.microposts.count, "micropost")
page[:micropost_form].reset
page.replace_html :notice, flash[:notice]
flash.discard

Here's the relevant part of my application layout view:

<div id= "notice"><% flash.each do |key, value| %>
   <div class="flash <%= key %>"><%= value %></div>
<% end %></div>

And here's the relevant part of my micropost controller:

class MicropostsController < ApplicationController
  before_filter :authenticate, :only => [:create, :destroy]
  before_filter :authorized_user, :only => :destroy

  def create
    @micropost  = current_user.microposts.build(params[:micropost])
    respond_to do |format|
      if @micropost.save
        flash[:success] = "Micropost created!"

        format.html { redirect_to root_path }
        format.js   
      else
        @feed_items = []
        render 'pages/home'
      end  
    end
  end

So why isn't the flash message showing up right away?

I'm trying to show a flash message and render it with Ajax, but the message does not seem to be appearing until after I refresh the page.

Here's my create.rjs file:

page.insert_html :top, :feed_items, :partial => 'shared/feed_item', :object => @micropost
page.replace_html :user_info, pluralize(current_user.microposts.count, "micropost")
page[:micropost_form].reset
page.replace_html :notice, flash[:notice]
flash.discard

Here's the relevant part of my application layout view:

<div id= "notice"><% flash.each do |key, value| %>
   <div class="flash <%= key %>"><%= value %></div>
<% end %></div>

And here's the relevant part of my micropost controller:

class MicropostsController < ApplicationController
  before_filter :authenticate, :only => [:create, :destroy]
  before_filter :authorized_user, :only => :destroy

  def create
    @micropost  = current_user.microposts.build(params[:micropost])
    respond_to do |format|
      if @micropost.save
        flash[:success] = "Micropost created!"

        format.html { redirect_to root_path }
        format.js   
      else
        @feed_items = []
        render 'pages/home'
      end  
    end
  end

So why isn't the flash message showing up right away?

• javascript
• ruby-on-rails
• ruby
• ajax
• rjs

Share Improve this question Follow edited Mar 3, 2011 at 23:42 Justin Meltzer asked Mar 3, 2011 at 23:32 Justin MeltzerJustin Meltzer 13.6k3434 gold badges119119 silver badges182182 bronze badges 2

• Look at this answer for a good solution to this: stackoverflow./questions/366311/… – Peyman Commented Oct 30, 2011 at 3:44
• Not sure if it'll do exactly what you want, but try using flash.now[:success] – Kenny Bania Commented Aug 7, 2012 at 15:51

Add a ment  | 

2 Answers 2

Sorted by: Reset to default 8

Flash messages by design are stored in the session until the next page load. In the case of ajax, don't use flash. For one thing, the div to replace the message into may not exist, so you need to add that to your page as a container to add to. Second, just do it from a regular variable, not flash.

A regular variable would be:

@message = "Micropost created!"

instead of the flash[:success]

The js view would use this variable instead of flash.

Instead of page.replace_html :notice, flash[:notice]
Try this page.replace_html :notice, "Some info to flash"

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