instance method `assert_valid_keys`

Ruby on Rails 4.0.13

Since v3.0.20

Available in: v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

assert_valid_keys(*valid_keys)

Validate all keys in a hash match *valid_keys, raising ArgumentError on a mismatch. Note that keys are NOT treated indifferently, meaning if you use strings for keys but assert symbols as keys, this will fail.

{ name: 'Rob', years: '28' }.assert_valid_keys(:name, :age) # => raises "ArgumentError: Unknown key: years"
{ name: 'Rob', age: '28' }.assert_valid_keys('name', 'age') # => raises "ArgumentError: Unknown key: name"
{ name: 'Rob', age: '28' }.assert_valid_keys(:name, :age)   # => passes, raises nothing

Parameters

valid_keys rest

Source

# File activesupport/lib/active_support/core_ext/hash/keys.rb, line 67
  def assert_valid_keys(*valid_keys)
    valid_keys.flatten!
    each_key do |k|
      raise ArgumentError.new("Unknown key: #{k}") unless valid_keys.include?(k)
    end
  end

Defined in activesupport/lib/active_support/core_ext/hash/keys.rb line 67 · View on GitHub · Improve this page · Find usages on GitHub

Defined in Hash

Signature

Parameters