Methods
- assert_valid_keys
- stringify_keys
- stringify_keys!
- symbolize_keys
- symbolize_keys!
- to_options
- to_options!
Public Instance methods
[ show source ]
# File vendor/rails/activesupport/lib/active_support/core_ext/hash/keys.rb, line 46 46: def assert_valid_keys(*valid_keys) 47: unknown_keys = keys - [valid_keys].flatten 48: raise(ArgumentError, "Unknown key(s): #{unknown_keys.join(", ")}") unless unknown_keys.empty? 49: end
Return a new hash with all keys converted to strings.
[ show source ]
# File vendor/rails/activesupport/lib/active_support/core_ext/hash/keys.rb, line 6 6: def stringify_keys 7: inject({}) do |options, (key, value)| 8: options[key.to_s] = value 9: options 10: end 11: end
Destructively convert all keys to strings.
[ show source ]
# File vendor/rails/activesupport/lib/active_support/core_ext/hash/keys.rb, line 14 14: def stringify_keys! 15: keys.each do |key| 16: unless key.class.to_s == "String" # weird hack to make the tests run when string_ext_test.rb is also running 17: self[key.to_s] = self[key] 18: delete(key) 19: end 20: end 21: self 22: end
Return a new hash with all keys converted to symbols.
This method is also aliased as
to_options
[ show source ]
# File vendor/rails/activesupport/lib/active_support/core_ext/hash/keys.rb, line 25 25: def symbolize_keys 26: inject({}) do |options, (key, value)| 27: options[key.to_sym] = value 28: options 29: end 30: end
Destructively convert all keys to symbols.
This method is also aliased as
to_options!
[ show source ]
# File vendor/rails/activesupport/lib/active_support/core_ext/hash/keys.rb, line 33 33: def symbolize_keys! 34: keys.each do |key| 35: unless key.is_a?(Symbol) 36: self[key.to_sym] = self[key] 37: delete(key) 38: end 39: end 40: self 41: end
Alias for symbolize_keys
Alias for symbolize_keys!