rails_present_method.rb

(rdb:1) @filter

{:grid_id=>8, :from=>Mon, 16 Dec 2013 10:27:58 UTC +00:00, :to=>Tue, 24 Dec 2013 10:27:58 UTC +00:00, :completed=>false}

(rdb:1) @filter[:completed].present?

false

(rdb:1) @filter[:to].present?

true

(rdb:1)

 

 
# Rails source of present?

 

# https://github.com/rails/rails/blob/master/activesupport/lib/active_support/core_ext/object/blank.rb#L19



# An object is present if it's not <tt>blank?</tt>.

  def present?

    !blank?
  end



# An object is blank if it's false, empty, or a whitespace string.


@filter.key?(:completed) instead ?