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stevenbristol/proc.rb

Created August 9, 2012 17:18
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Proc in scope
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proc.rb
class User < ActiveRecord::Base
scope :hello_lamb, ->(param) { param.blank? ? where("") : where("param = ?", param) }
scope :hello_proc, Proc.new { |param| param.blank? ? where("") : where("param = ?", param) }
end
User.hello_proc
# User Load (0.5ms) SELECT * FROM users
User.hello_lamb
#ArgumentError: wrong number of arguments (0 for 1)
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