42 lines
1.4 KiB
Ruby
42 lines
1.4 KiB
Ruby
require 'active_support/core_ext/range'
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module ActiveModel
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module Validations
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module Clusivity #:nodoc:
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ERROR_MESSAGE = "An object with the method #include? or a proc, lambda or symbol is required, " <<
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"and must be supplied as the :in (or :within) option of the configuration hash"
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def check_validity!
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unless delimiter.respond_to?(:include?) || delimiter.respond_to?(:call) || delimiter.respond_to?(:to_sym)
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raise ArgumentError, ERROR_MESSAGE
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end
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end
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private
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def include?(record, value)
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exclusions = if delimiter.respond_to?(:call)
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delimiter.call(record)
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elsif delimiter.respond_to?(:to_sym)
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record.send(delimiter)
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else
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delimiter
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end
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exclusions.send(inclusion_method(exclusions), value)
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end
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def delimiter
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@delimiter ||= options[:in] || options[:within]
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end
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# In Ruby 1.9 <tt>Range#include?</tt> on non-numeric ranges checks all possible values in the
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# range for equality, so it may be slow for large ranges. The new <tt>Range#cover?</tt>
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# uses the previous logic of comparing a value with the range endpoints.
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def inclusion_method(enumerable)
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enumerable.is_a?(Range) ? :cover? : :include?
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end
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end
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end
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end
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