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!