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POPubnub and Rails 4
 

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  1. POPubnub and Rails 4
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    <p>I'm following a twitter tutorial for a class project and I'm stuck at the part where the tutorial is using PUBNUB. I'm getting the following error:</p> <pre><code>Showing C:/RubyProjects/twitter/app/views/layouts/application.html.erb where line #93 raised: **wrong number of arguments(1 for 0)** Extracted source (around line #93): PUBNUB.subscribe({ channel : "&lt;%= Digest::SHA1.hexdigest(current_user.username, current_user.created_at) %&gt;", callback : function(message) { updateTimeline(message) } </code></pre> <p>I found on stackoverflow and found that EventMachine helped some folks and I tried that but still nada :(</p> <p>I checked the PUBNUB page on Github and saw that it has changed the way <strong>channel</strong> and <strong>callback</strong> was written so I tried doing that but it did not help either. Im still getting the same error about wrong number of arguments(1 for 0).</p> <p>Notify.rb</p> <pre><code>class Notify def self.deliver_message_to_user(params) post = Post.find(params[:post_id]) user = User.find(params[:user_id]) user.channel ||= Channel.new( :channel_ident =&gt; Digest::SHA1.hexdigest(user.username, user.created_at.to_s)) Pubnub.publish({ :channel =&gt; user.channel.channel_ident, :message =&gt; post.to_json(:include =&gt; :user) }) end end </code></pre> <p>application.html.erb</p> <pre><code>&lt;script&gt; function updateTimeline(message) { var html = JST['post'](jQuery.parseJSON(message)); $('#timeline').prepend(html); } Pubnub.subscribe({ :channel =&gt; "&lt;%= Digest::SHA1.hexdigest(current_user.username, current_user.created_at) %&gt;", :callback =&gt; function(message) { updateTimeline(message) } }) &lt;/script&gt; </code></pre> <p>I put <strong>require 'digest'</strong> in my application.rb file and it still din't help. Could it be the syntax? If it is, i'm not sure what the correct syntax would be.</p>
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    1. PTQuestion
    1. USCraig Conover
    1. USOmar Khan
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    1. This table or related slice is empty.
    1. COhi! we are looking into this
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      1. POPubnub and Rails 4
      1. USStephen Blum
    2. COalso send us a note to support@pubnub.com and let us know if the answer below is helpful in solving the issue of `**wrong number of arguments(1 for 0)**`.
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      1. POPubnub and Rails 4
      1. USStephen Blum
 

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