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tiegz/visualize_arel.rb

Created May 7, 2012 20:28
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Visualizing ARel ASTs from your ActiveRecord queries
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visualize_arel.rb
# Add the graphiz gem to your Gemfile
gem "ruby-graphviz"
# And in the rails console, try the following:
require 'graphviz'
arel = User.where(:name => "Sadako Yamamura").where(:location => "Tokyo").limit(1).arel
graph = GraphViz.parse_string(arel.to_dot)
graph.output(:png => "user_query.png")
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