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Some comments wrt an install.
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June 3, 2011
8:10 am
South Africa
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June 3, 2011
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Hi there

I am a totally newbie to ruby and Thingspeak (but not to linux and hacking (correct sense) around so I thought I might add a few comments with regard to an install.


Installing on Slackware 12.1 (oldish).

Ruby version upgraded to: ruby 1.8.7 (2009-06-12 patchlevel 174) [i686-linux]

Rails: Rails 3.0.4



First thing I ran into as a newbie was the idea of production/development/test environments.  By default the install runs in the development environment and does not add the production database to the mysql.  This required switching to the production environment and re-adding the database by setting an environment variable: export RAILS_ENV="production" there are otherways of doing that but that worked for me.  (  This will obviously be required going forward.


Once that was set and I was running in the production environment the path for the public folder broke, I have not figured out where to set that correctly yet, I just used:

  # Enable serving of images, stylesheets, and javascripts from an asset server
   config.action_controller.asset_host = "http://mysever/thing/"

By copy the files from public to the a directory in the document root of the local apache  and setting the above it worked fine.


I could then create an account but on logging out the login again had a problem.  From the logs the error was:


/usr/local/src/llawlor-thingspeak-5e54790/app/views/users/_login.html.erb:1: syntax error, unexpected tASSOC, expecting kEND
…on =, :url => user_session_path, :html => {…


Which is this first line:


<%= form_for (@user_session =, :url => user_session_path, :html => { :id => 'loginform' } do |f| %>


After googling I took a flyer and changed that to this:


<%= form_for @user_session, :url => user_session_path, :html => { :id => 'loginform' } do |f| %>


And that worked.


Next up the link for managing keys does not work.  From the logs:


ActionView::Template::Error (compile error
/usr/local/src/llawlor-thingspeak-5e54790/app/views/api_keys/index.html.erb:42: syntax error, unexpected ')'
…path(@channel, :write => 0), );@output_buffer.safe_concat('


And still no data being graphed.


I will update as I progress.





June 3, 2011
11:36 am

Forum Posts: 457
Member Since:
March 14, 2011
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We built the application while using Ruby 1.9.2, and have not tested it with older versions of Ruby.  Hopefully if you can upgrade some of the errors will go away.  We also recommend using Phusion Passenger with Nginx as the webserver.  If you have any questions let us know!


June 3, 2011
2:44 pm
South Africa
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Forum Posts: 2
Member Since:
June 3, 2011
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Hi there

Well there you go!  I took your advice and upgraded Ruby etc.  Bingo, all working.

Thank you very much.


Now I can play with more interesting things 🙂



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