class Hash

Public Instance Methods

deepen_hash() click to toggle source
# 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) click to toggle source
# 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) click to toggle source
# 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