instance method `assert_valid_keys`

Ruby on Rails 3.1.12

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.

Examples

{ :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 41
  def assert_valid_keys(*valid_keys)
    valid_keys.flatten!
    each_key do |k|
      raise(ArgumentError, "Unknown key: #{k}") unless valid_keys.include?(k)
    end
  end

Defined in activesupport/lib/active_support/core_ext/hash/keys.rb line 41 · View on GitHub · Improve this page · Find usages on GitHub

Defined in Hash

Signature

Examples

Parameters