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Wrapping an array in an `ArrayInquirer` gives a friendlier way to check its
string-like contents. For example, `request.variant` returns an `ArrayInquirer`
object. To check a request's variants, you can call:
request.variant.phone?
request.variant.any?(:phone, :tablet)
...instead of:
request.variant.include?(:phone)
request.variant.any? { |v| v.in?([:phone, :tablet]) }
`Array#inquiry` is a shortcut for wrapping the receiving array in an
`ArrayInquirer`:
pets = [:cat, :dog]
pets.cat? # => true
pets.ferret? # => false
pets.any?(:cat, :ferret} # => true
38 lines
969 B
Ruby
38 lines
969 B
Ruby
module ActiveSupport
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# Wrapping an array in an +ArrayInquirer+ gives a friendlier way to check
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# its string-like contents:
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#
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# variants = ActiveSupport::ArrayInquirer.new([:phone, :tablet])
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#
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# variants.phone? # => true
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# variants.tablet? # => true
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# variants.desktop? # => false
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#
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# variants.any?(:phone, :tablet) # => true
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# variants.any?(:phone, :desktop) # => true
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# variants.any?(:desktop, :watch) # => false
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class ArrayInquirer < Array
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def any?(*candidates, &block)
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if candidates.none?
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super
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else
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candidates.any? do |candidate|
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include?(candidate) || include?(candidate.to_sym)
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end
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end
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end
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private
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def respond_to_missing?(name, include_private = false)
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name[-1] == '?'
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end
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def method_missing(name, *args)
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if name[-1] == '?'
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any?(name[0..-2])
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else
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super
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end
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end
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end
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end
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