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Nondv/lambda_instead_of_methods.rb

Last active April 18, 2017 21:21
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[Ruby] Using lambda instead of methods
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lambda_instead_of_methods.rb
module CreatedAtScopes
extend ActiveSupport::Concern
# Lambda does not pollute a class namespace but do the job.
tz_time_today = -> { Time.zone.now.beginning_of_day }
included do
scope :created_before, ->(time) { where(arel_table[:created_at].lt(time)) }
scope :created_after, ->(time) { where(arel_table[:created_at].gt(time)) }
scope :created_today, -> { created_after(tz_time_today[]) }
scope :created_yesterday, -> { created_after(tz_time_today[] - 1.day).created_before(tz_time_today[]) }
end
end
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