instance method `assert_valid_keys`

Ruby on Rails 2.2.3

Since v2.2.3 Last seen in v2.3.18

Available in: v2.2.3 v2.3.18

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(s): years"
{ :name => "Rob", :age => "28" }.assert_valid_keys("name", "age") # => raises "ArgumentError: Unknown key(s): name, age"
{ :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 45
        def assert_valid_keys(*valid_keys)
          unknown_keys = keys - [valid_keys].flatten
          raise(ArgumentError, "Unknown key(s): #{unknown_keys.join(", ")}") unless unknown_keys.empty?
        end

Defined in activesupport/lib/active_support/core_ext/hash/keys.rb line 45 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveSupport::CoreExtensions::Hash::Keys

Signature

Examples:

Parameters