class GraphQL::Schema::Validator::FormatValidator


# It’s pretty hard to come up with a legitimate use case for ‘without:`
validates: { format: { without: /A/ } }
argument :word_that_doesnt_begin_with_a_vowel, String, required: true,
@example reject inputs that match a pattern
validates: { format: { with: /A+Z/ } }
argument :handle, String, required: true,
@example requiring input to match a pattern
Use this to assert that string values match (or don’t match) the given RegExp.

def initialize(

Parameters:
  • message (String) --
  • without (Regexp, nil) --
  • with (RegExp, nil) -- 
def initialize(
  with: nil,
  without: nil,
  message: "%{validated} is invalid",
  **default_options
)
  @with_pattern = with
  @without_pattern = without
  @message = message
  super(**default_options)
end

def validate(_object, _context, value) 

def validate(_object, _context, value)
  if permitted_empty_value?(value)
    # Do nothing
  elsif value.nil? ||
      (@with_pattern && !value.match?(@with_pattern)) ||
      (@without_pattern && value.match?(@without_pattern))
    @message
  end
end