Class: Cistern::Hash

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

Class Method Summary collapse

Class Method Details

.except(hash, *keys) ⇒ Object 



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# File 'lib/cistern/hash.rb', line 8

def self.except(hash, *keys)
  Cistern::Hash.except!(hash.dup, *keys)
end

.except!(hash, *keys) ⇒ Object

Replaces the hash without the given keys.



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# File 'lib/cistern/hash.rb', line 13

def self.except!(hash, *keys)
  keys.each { |key| hash.delete(key) }
  hash
end

.slice(hash, *keys) ⇒ Object 



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# File 'lib/cistern/hash.rb', line 2

def self.slice(hash, *keys)
  {}.tap do |sliced|
    keys.each{ |k| sliced[k] = hash[k] if hash.key?(k) }
  end
end

.stringify_keys(object) ⇒ Object 



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# File 'lib/cistern/hash.rb', line 18

def self.stringify_keys(object)
  case object
  when Hash
    object.inject({}){|r,(k,v)| r.merge(k.to_s => stringify_keys(v))}
  when Array
    object.map{|v| stringify_keys(v) }
  else
    object
  end
end