Add SQL "LIKE" clauses as ActiveRecord methods in a config/initializers/ file

gistfile1.rb

# Thanks to https://stackoverflow.com/questions/7051062/whats-the-best-way-to-include-a-like-clause-in-a-rails-query for the original code.
module ActiveRecord
  module Querying
    def match_scope_condition(column, query)
      arel_table[column].matches("%#{query}%")
    end

    def matching(*args)
      column_name, opts = args.shift, args.extract_options!
      operator = opts[:operator] || :or
      where(args.flatten.map { |query| match_scope_condition(column_name, query) }.inject(&operator))
    end
  end
end

# Example of defining a method specific to one particular column:
# class User
#  scope :matching_email, ->(*query) { matching(:email, *query) }
# end