6873fc8026
Upgraded to Rails 2.0.2, except that we maintain vendor/rails/actionpack/lib/action_controller/routing.rb from Rail 1.2.6 (at least for now), so that Routes don't change. We still get to enjoy Rails's many new features. Also fixed a bug in Chunk-handling: disable WikiWord processing in tags (for real this time).
20 lines
604 B
Ruby
20 lines
604 B
Ruby
module ActiveSupport #:nodoc:
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module CoreExtensions #:nodoc:
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module Hash #:nodoc:
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module Diff
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# Returns a hash that represents the difference between two hashes.
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#
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# Examples:
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#
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# {1 => 2}.diff(1 => 2) # => {}
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# {1 => 2}.diff(1 => 3) # => {1 => 2}
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# {}.diff(1 => 2) # => {1 => 2}
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# {1 => 2, 3 => 4}.diff(1 => 2) # => {3 => 4}
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def diff(h2)
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self.dup.delete_if { |k, v| h2[k] == v }.merge(h2.dup.delete_if { |k, v| self.has_key?(k) })
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end
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end
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end
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end
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end
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