Module: ActiveTools::CoreExtension::DeepMerge::HashExtension

Defined in:
lib/active_tools/core_extension/deep_merge.rb

Instance Method Summary collapse

Instance Method Details

#deep_merge(other_hash = {}) ⇒ Object

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}



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# File 'lib/active_tools/core_extension/deep_merge.rb', line 15

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

#deep_merge!(other_hash = {}) ⇒ Object

.nested_merge replaces the source hash.



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# File 'lib/active_tools/core_extension/deep_merge.rb', line 28

def deep_merge!(other_hash = {})
  replace(deep_merge(other_hash))
end