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module ActiveSupport
# Wrapping an array in an +ArrayInquirer+ gives a friendlier way to check
# its string-like contents:
#
# variants = ActiveSupport::ArrayInquirer.new([:phone, :tablet])
#
# variants.phone? # => true
# variants.tablet? # => true
# variants.desktop? # => false
class ArrayInquirer < Array
# Passes each element of +candidates+ collection to ArrayInquirer collection.
# The method returns true if at least one element is the same. If +candidates+
# collection is not given, method returns true.
#
# variants = ActiveSupport::ArrayInquirer.new([:phone, :tablet])
#
# variants.any? # => true
# variants.any?(:phone, :tablet) # => true
# variants.any?('phone', 'desktop') # => true
# variants.any?(:desktop, :watch) # => false
def any?(*candidates, &block)
if candidates.none?
super
else
candidates.any? do |candidate|
include?(candidate.to_sym) || include?(candidate.to_s)
end
end
end
private
def respond_to_missing?(name, include_private = false)
name[-1] == '?'
end
def method_missing(name, *args)
if name[-1] == '?'
any?(name[0..-2])
else
super
end
end
end
end
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