7600aef48b
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:
|
|
module CoreExtensions #:nodoc:
|
|
module Hash #:nodoc:
|
|
# Allows for reverse merging two hashes where the keys in the calling hash take precedence over those
|
|
# in the <tt>other_hash</tt>. This is particularly useful for initializing an option hash with default values:
|
|
#
|
|
# def setup(options = {})
|
|
# options.reverse_merge! :size => 25, :velocity => 10
|
|
# end
|
|
#
|
|
# Using <tt>merge</tt>, the above example would look as follows:
|
|
#
|
|
# def setup(options = {})
|
|
# { :size => 25, :velocity => 10 }.merge(options)
|
|
# end
|
|
#
|
|
# The default <tt>:size</tt> and <tt>:velocity</tt> are only set if the +options+ hash passed in doesn't already
|
|
# have the respective key.
|
|
module ReverseMerge
|
|
# Performs the opposite of <tt>merge</tt>, with the keys and values from the first hash taking precedence over the second.
|
|
def reverse_merge(other_hash)
|
|
other_hash.merge(self)
|
|
end
|
|
|
|
# Performs the opposite of <tt>merge</tt>, with the keys and values from the first hash taking precedence over the second.
|
|
# Modifies the receiver in place.
|
|
def reverse_merge!(other_hash)
|
|
replace(reverse_merge(other_hash))
|
|
end
|
|
|
|
alias_method :reverse_update, :reverse_merge!
|
|
end
|
|
end
|
|
end
|
|
end
|