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Versions: 49
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Contents
module ActiveTools
module CoreExtension
module DeepMerge
module HashExtension
# Return the merged Hash with another +hash+, where the possible child hashes are also merged.
#
# === Example:
#
# h1 = {:breakfast => {:eggs => 2, :bread => 1}, :lunch => {:steak => 1, :salad => 1}}
# h2 = {:breakfast => {:coffee => :espresso, :juice => 1}, :lunch => {:tea => 2}, :dinner => :none}
# h1.deep_merge(h2)
# #=> {:breakfast=>{:eggs=>2, :bread=>1, :coffee=>:espresso, :juice=>1}, :lunch=>{:steak=>1, :salad=>1, :tea=>2}, :dinner=>:none}
def deep_merge(other_hash = {})
dup.tap do |hash|
other_hash.each do |key, value|
if !hash.has_key?(key) || !hash[key].is_a?(Hash)
hash[key] = value
elsif hash[key].is_a?(Hash) && value.is_a?(Hash)
hash[key].deep_merge!(value)
end
end
end
end
# .nested_merge replaces the source hash.
def deep_merge!(other_hash = {})
replace(deep_merge(other_hash))
end
end
::Hash.send(:include, HashExtension)
end
end
end
Version data entries
49 entries across 49 versions & 1 rubygems