Class: Hash

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

Overview

Various Hash extensions.

Direct Known Subclasses

Section

Instance Method Summary collapse

Instance Method Details

#deep_merge(other_hash) ⇒ Object

Recursively merge other_hash into self and return the new hash.



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# File 'lib/madvertise/ext/hash.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.is_a?(Hash) && newval.is_a?(Hash) ? oldval.deep_merge(newval) : newval
  end
end

#deep_merge!(other_hash) ⇒ Object

Recursively merge and replace other_hash into self.



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

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

#delta_merge!(other_hash) ⇒ Object

accumulate existing keys from other_hash into self.



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# File 'lib/madvertise/ext/hash.rb', line 21

def delta_merge!(other_hash)
  other_hash.each do |k,v|
    if self.has_key?(k)
      self[k] += v
    else
      self[k] = v
    end
  end
end