As a side benefit, fix an (non-user-visible) bug in display_s5(). Also fixed a bug where removing orphaned pages did not expire cached summary pages.
36 lines
1.3 KiB
Ruby
36 lines
1.3 KiB
Ruby
module ActiveSupport #:nodoc:
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module CoreExtensions #:nodoc:
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module Hash #:nodoc:
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# Allows for reverse merging two hashes where the keys in the calling hash take precedence over those
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# in the <tt>other_hash</tt>. This is particularly useful for initializing an option hash with default values:
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#
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# def setup(options = {})
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# options.reverse_merge! :size => 25, :velocity => 10
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# end
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#
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# Using <tt>merge</tt>, the above example would look as follows:
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#
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# def setup(options = {})
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# { :size => 25, :velocity => 10 }.merge(options)
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# end
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#
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# The default <tt>:size</tt> and <tt>:velocity</tt> are only set if the +options+ hash passed in doesn't already
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# have the respective key.
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module ReverseMerge
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# Performs the opposite of <tt>merge</tt>, with the keys and values from the first hash taking precedence over the second.
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def reverse_merge(other_hash)
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other_hash.merge(self)
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end
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# Performs the opposite of <tt>merge</tt>, with the keys and values from the first hash taking precedence over the second.
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# Modifies the receiver in place.
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def reverse_merge!(other_hash)
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replace(reverse_merge(other_hash))
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end
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alias_method :reverse_update, :reverse_merge!
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end
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end
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end
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end
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