Class: Hash

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

Overview

Hash - Core Extensions

Instance Method Summary collapse

Instance Method Details

#deep_stringify_keys ⇒ Object

Returns a new hash with all keys converted to strings. This includes the keys from the root hash and from all nested hashes and arrays.

hash = { person: { name: 'Rob', age: '28' } }

hash.deep_stringify_keys
# => {"person"=>{"name"=>"Rob", "age"=>"28"}}



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# File 'lib/bot_mob/core_ext/hash.rb', line 94

def deep_stringify_keys
  deep_transform_keys(&:to_s)
end

#deep_stringify_keys! ⇒ Object

Destructively converts all keys to strings. This includes the keys from the root hash and from all nested hashes and arrays.



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# File 'lib/bot_mob/core_ext/hash.rb', line 101

def deep_stringify_keys!
  deep_transform_keys!(&:to_s)
end

#deep_symbolize_keys ⇒ Object

Returns a new hash with all keys converted to symbols, as long as they respond to to_sym. This includes the keys from the root hash and from all nested hashes and arrays.

hash = { 'person' => { 'name' => 'Rob', 'age' => '28' } }

hash.deep_symbolize_keys
# => {person: {name: "Rob", age: "28"}}



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# File 'lib/bot_mob/core_ext/hash.rb', line 113

def deep_symbolize_keys
  deep_transform_keys { |key| key.to_sym rescue key }
end

#deep_symbolize_keys! ⇒ Object

Destructively converts all keys to symbols, as long as they respond to to_sym. This includes the keys from the root hash and from all nested hashes and arrays.



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# File 'lib/bot_mob/core_ext/hash.rb', line 120

def deep_symbolize_keys!
  deep_transform_keys! { |key| key.to_sym rescue key }
end

#deep_transform_keys(&block) ⇒ Object

Returns a new hash with all keys converted by the block operation. This includes the keys from the root hash and from all nested hashes and arrays.

hash = { person: { name: 'Rob', age: '28' } }

hash.deep_transform_keys{ |key| key.to_s.upcase }
# => {"PERSON"=>{"NAME"=>"Rob", "AGE"=>"28"}}



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# File 'lib/bot_mob/core_ext/hash.rb', line 75

def deep_transform_keys(&block)
  _deep_transform_keys_in_object(self, &block)
end

#deep_transform_keys!(&block) ⇒ Object

Destructively converts all keys by using the block operation. This includes the keys from the root hash and from all nested hashes and arrays.



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# File 'lib/bot_mob/core_ext/hash.rb', line 82

def deep_transform_keys!(&block)
  _deep_transform_keys_in_object!(self, &block)
end

#stringify_keys ⇒ Object

Returns a new hash with all keys converted to strings.

hash = { name: 'Rob', age: '28' }

hash.stringify_keys
# => {"name"=>"Rob", "age"=>"28"}



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# File 'lib/bot_mob/core_ext/hash.rb', line 38

def stringify_keys
  transform_keys(&:to_s)
end

#stringify_keys! ⇒ Object

Destructively converts all keys to strings. Same as stringify_keys, but modifies self.



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# File 'lib/bot_mob/core_ext/hash.rb', line 44

def stringify_keys!
  transform_keys!(&:to_s)
end

#symbolize_keys ⇒ Object Also known as: to_options

Returns a new hash with all keys converted to symbols, as long as they respond to to_sym.

hash = { 'name' => 'Rob', 'age' => '28' }

hash.symbolize_keys
# => {name: "Rob", age: "28"}



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# File 'lib/bot_mob/core_ext/hash.rb', line 55

def symbolize_keys
  transform_keys { |key| key.to_sym rescue key }
end

#symbolize_keys! ⇒ Object Also known as: to_options!

Destructively converts all keys to symbols, as long as they respond to to_sym. Same as symbolize_keys, but modifies self.



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# File 'lib/bot_mob/core_ext/hash.rb', line 62

def symbolize_keys!
  transform_keys! { |key| key.to_sym rescue key }
end

#transform_keys ⇒ Object

Returns a new hash with all keys converted using the block operation.

hash = { name: 'Rob', age: '28' }

hash.transform_keys { |key| key.to_s.upcase } # => {"NAME"=>"Rob", "AGE"=>"28"}

If you do not provide a block, it will return an Enumerator for chaining with other methods:

hash.transform_keys.with_index { |k, i| [k, i].join } # => {"name0"=>"Rob", "age1"=>"28"}



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# File 'lib/bot_mob/core_ext/hash.rb', line 13

def transform_keys
  return enum_for(:transform_keys) { size } unless block_given?
  result = self.class.new
  each_key do |key|
    result[yield(key)] = self[key]
  end
  result
end

#transform_keys! ⇒ Object

Destructively converts all keys using the block operations. Same as transform_keys but modifies self.



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# File 'lib/bot_mob/core_ext/hash.rb', line 24

def transform_keys!
  return enum_for(:transform_keys!) { size } unless block_given?
  keys.each do |key|
    self[yield(key)] = delete(key)
  end
  self
end