Module: ActiveSupport::CoreExtensions::Hash::DeepMerge

Included in:
Hash
Defined in:
lib/gems/activesupport-2.2.2/lib/active_support/core_ext/hash/deep_merge.rb

Overview

Allows for deep merging

Instance Method Summary collapse

Instance Method Details

#deep_merge(other_hash) ⇒ Object

Returns a new hash with self and other_hash merged recursively.



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# File 'lib/gems/activesupport-2.2.2/lib/active_support/core_ext/hash/deep_merge.rb', line 7

def deep_merge(other_hash)
  self.merge(other_hash) do |key, oldval, newval|
    oldval = oldval.to_hash if oldval.respond_to?(:to_hash)
    newval = newval.to_hash if newval.respond_to?(:to_hash)
    oldval.class.to_s == 'Hash' && newval.class.to_s == 'Hash' ? oldval.deep_merge(newval) : newval
  end
end

#deep_merge!(other_hash) ⇒ Object

Returns a new hash with self and other_hash merged recursively. Modifies the receiver in place.



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# File 'lib/gems/activesupport-2.2.2/lib/active_support/core_ext/hash/deep_merge.rb', line 17

def deep_merge!(other_hash)
  replace(deep_merge(other_hash))
end