Class: Hash

Inherits:
Object
  • Object
show all
Defined in:
lib/ext/hash.rb

Overview

Shamelessly borrowed from active_support. Simply because I dont want to force the dependency.

Instance Method Summary collapse

Instance Method Details

#deep_merge(other_hash) ⇒ Object

Returns a new hash with self and other_hash merged recursively.

h1 = {:x => {:y => [4,5,6]}, :z => [7,8,9]}
h2 = {:x => {:y => [7,8,9]}, :z => "xyz"}

h1.deep_merge(h2) #=> { :x => {:y => [7, 8, 9]}, :z => "xyz" }
h2.deep_merge(h1) #=> { :x => {:y => [4, 5, 6]}, :z => [7, 8, 9] }



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# File 'lib/ext/hash.rb', line 11

def deep_merge(other_hash)
  dup.deep_merge!(other_hash)
end

#deep_merge!(other_hash) ⇒ Object

Same as deep_merge, but modifies self.



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# File 'lib/ext/hash.rb', line 16

def deep_merge!(other_hash)
  other_hash.each_pair do |k,v|
    tv = self[k]
    self[k] = tv.is_a?(Hash) && v.is_a?(Hash) ? tv.deep_merge(v) : v
  end
  self
end