class GraphQL::Schema::Validator::AllowBlankValidator

Use this to specifically reject values that respond to .blank? and respond truthy for that method.

Examples

Example: Require a non-empty string for an argument

argument :name, String, required: true, validate: { allow_blank: false }

Public Class Methods

new (allow_blank_positional = nil, allow_blank: nil, message: "%{validated} can't be blank", **default_options)

Source

# File lib/graphql/schema/validator/allow_blank_validator.rb, line 17
def initialize(allow_blank_positional = nil, allow_blank: nil, message: "%{validated} can't be blank", **default_options)
  @message = message
  super(**default_options)
  @allow_blank = allow_blank.nil? ? allow_blank_positional : allow_blank
end

Calls superclass method GraphQL::Schema::Validator::new

Public Instance Methods

validate (_object, _context, value)

Source

# File lib/graphql/schema/validator/allow_blank_validator.rb, line 23
def validate(_object, _context, value)
  if value.respond_to?(:blank?) && value.blank?
    if (value.nil? && validation_parameter(@allow_null)) || validation_parameter(@allow_blank)
      # pass
    else
      validation_parameter(@message)
    end
  end
end