Class: Hash
- Inherits:
-
Object
- Object
- Hash
- Defined in:
- lib/deep_hash_transform.rb
Instance Method Summary collapse
-
#deep_stringify_keys ⇒ Object
Returns a new hash with all keys converted to strings.
-
#deep_stringify_keys! ⇒ Object
Destructively convert all keys to strings.
-
#deep_symbolize_keys ⇒ Object
Returns a new hash with all keys converted to symbols, as long as they respond to
to_sym
. -
#deep_symbolize_keys! ⇒ Object
Destructively convert all keys to symbols, as long as they respond to
to_sym
. -
#deep_transform_keys(&block) ⇒ Object
Returns a new hash with all keys converted by the block operation.
-
#deep_transform_keys!(&block) ⇒ Object
Destructively convert all keys by using the block operation.
-
#stringify_keys ⇒ Object
Returns a new hash with all keys converted to strings.
-
#stringify_keys! ⇒ Object
Destructively convert all keys to strings.
-
#symbolize_keys ⇒ Object
Returns a new hash with all keys converted to symbols, as long as they respond to
to_sym
. -
#symbolize_keys! ⇒ Object
Destructively convert all keys to symbols, as long as they respond to
to_sym
. -
#transform_keys ⇒ Object
Returns a new hash with all keys converted using the block operation.
-
#transform_keys! ⇒ Object
Destructively convert all keys using the block operations.
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.
hash = { person: { name: 'Rob', age: '28' } }
hash.deep_stringify_keys
# => {"person"=>{"name"=>"Rob", "age"=>"28"}}
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# File 'lib/deep_hash_transform.rb', line 106 def deep_stringify_keys deep_transform_keys { |key| key.to_s } end |
#deep_stringify_keys! ⇒ Object
Destructively convert all keys to strings. This includes the keys from the root hash and from all nested hashes.
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# File 'lib/deep_hash_transform.rb', line 113 def deep_stringify_keys! deep_transform_keys! { |key| key.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.
hash = { 'person' => { 'name' => 'Rob', 'age' => '28' } }
hash.deep_symbolize_keys
# => {:person=>{:name=>"Rob", :age=>"28"}}
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# File 'lib/deep_hash_transform.rb', line 125 def deep_symbolize_keys deep_transform_keys { |key| key.to_sym rescue key } end |
#deep_symbolize_keys! ⇒ Object
Destructively convert 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.
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# File 'lib/deep_hash_transform.rb', line 132 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.
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/deep_hash_transform.rb', line 79 def deep_transform_keys(&block) result = {} each do |key, value| result[yield(key)] = value.is_a?(Hash) ? value.deep_transform_keys(&block) : value end result end |
#deep_transform_keys!(&block) ⇒ Object
Destructively convert all keys by using the block operation. This includes the keys from the root hash and from all nested hashes.
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# File 'lib/deep_hash_transform.rb', line 90 def deep_transform_keys!(&block) keys.each do |key| value = delete(key) self[yield(key)] = value.is_a?(Hash) ? value.deep_transform_keys!(&block) : value end self 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/deep_hash_transform.rb', line 44 def stringify_keys transform_keys { |key| key.to_s } end |
#stringify_keys! ⇒ Object
Destructively convert all keys to strings. Same as stringify_keys
, but modifies self
.
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# File 'lib/deep_hash_transform.rb', line 50 def stringify_keys! transform_keys! { |key| key.to_s } end |
#symbolize_keys ⇒ Object
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/deep_hash_transform.rb', line 61 def symbolize_keys transform_keys { |key| key.to_sym rescue key } end |
#symbolize_keys! ⇒ Object
Destructively convert 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/deep_hash_transform.rb', line 67 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"}
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# File 'lib/deep_hash_transform.rb', line 21 def transform_keys result = {} each_key do |key| result[yield(key)] = self[key] end result end |
#transform_keys! ⇒ Object
Destructively convert all keys using the block operations. Same as transform_keys but modifies self
.
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# File 'lib/deep_hash_transform.rb', line 31 def transform_keys! keys.each do |key| self[yield(key)] = delete(key) end self end |