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Contents
module Attributor
class Integer < Numeric
EXAMPLE_RANGE = 1000.freeze
def self.native_type
return ::Integer
end
def self.example(context=nil, options: {})
validate_options(options)
# Set default values
if options[:min].nil? && options[:max].nil?
min = 0
max = EXAMPLE_RANGE
elsif options[:min].nil?
max = options[:max]
min = max - EXAMPLE_RANGE
elsif options[:max].nil?
min = options[:min]
max = min + EXAMPLE_RANGE
else
min = options[:min]
max = options[:max]
end
# Generate random number on interval [min,max]
rand(max-min+1) + min
end
def self.load(value, context=Attributor::DEFAULT_ROOT_CONTEXT, **options)
Integer(value)
rescue TypeError
super
end
def self.validate_options(options)
if options.has_key?(:min) && options.has_key?(:max)
# Both :max and :min must be integers
raise AttributorException.new("Invalid range: [#{options[:min].inspect}, #{options[:max].inspect}]") if !options[:min].is_a?(::Integer) || !options[:max].is_a?(::Integer)
# :max cannot be less than :min
raise AttributorException.new("Invalid range: [#{options[:min].inspect}, #{options[:max].inspect}]") if options[:max] < options[:min]
elsif !options.has_key?(:min) && options.has_key?(:max)
# :max must be an integer
raise AttributorException.new("Invalid range: [, #{options[:max].inspect}]") if !options[:max].is_a?(::Integer)
elsif options.has_key?(:min) && !options.has_key?(:max)
# :min must be an integer
raise AttributorException.new("Invalid range: [#{options[:min].inspect},]") if !options[:min].is_a?(::Integer)
else
# Neither :min nor :max were given, noop
end
true
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems