Use Global Scopes

Say you want all your models to have a scope that lets you select them by date of their created_at.

Make a module

# in /app/models/concerns/global_scopes.rb
module GlobalScopes
  def self.included(base)
    base.class_eval do
      def self.in_daterange(start_date, end_date)
        all.where(created_at: start_date.to_date.beginning_of_day..end_date.to_date.end_of_day)
      end
    end
  end
end

Have the module included in ActiveRecord::Base.

# in /config/initializers/activerecord.rb
ActiveRecord::Base.send(:include, GlobalScopes)

More at stackoverflow

Global

Written on September 21, 2015