class Hash
Public Instance Methods
deepen_hash()
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# File lib/core_ext/hash_extend.rb, line 14 def deepen_hash self.inject(HashWithIndifferentAccess.new) do |result, (key, value)| path_names = key.split(".") if path_names.length == 1 result[key] = value else key_result = path_names.reverse.inject(nil) do |result, path_name| if result == nil HashWithIndifferentAccess.new(path_name => value) else HashWithIndifferentAccess.new(path_name => result) end end result.deep_merge!(key_result) end result end end
difference(h2)
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# File lib/core_ext/hash_extend.rb, line 33 def difference(h2) dup.delete_if { |k, v| h2[k] == v }.merge!(h2.dup.delete_if { |k, v| has_key?(k) }) end
flatten_hash(prefix = nil)
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# File lib/core_ext/hash_extend.rb, line 2 def flatten_hash(prefix = nil) self.inject(HashWithIndifferentAccess.new) do |result, (key, value)| combined_key = [prefix, key].compact.join(".") if value.is_a?(Hash) result.deep_merge!(value.flatten_hash(combined_key)) else result[combined_key] = value end result end end