Module: ActiveObject::Numeric

Defined in:
lib/active_object/numeric.rb

Instance Method Summary collapse

Instance Method Details

#add(num) ⇒ Object 



58
59
60
 
# File 'lib/active_object/numeric.rb', line 58

def add(num)
  self + num
end

#bytes_in_bytes ⇒ Object Also known as: byte_in_bytes 



62
63
64
 
# File 'lib/active_object/numeric.rb', line 62

def bytes_in_bytes
  self
end

#centigrams_in_grams ⇒ Object Also known as: centigram_in_grams 



68
69
70
 
# File 'lib/active_object/numeric.rb', line 68

def centigrams_in_grams
  self * CENTI
end

#centimeters_in_meters ⇒ Object Also known as: centimeter_in_meters 



74
75
76
 
# File 'lib/active_object/numeric.rb', line 74

def centimeters_in_meters
  self * CENTI
end

#centuries_in_seconds ⇒ Object Also known as: century_in_seconds 



80
81
82
 
# File 'lib/active_object/numeric.rb', line 80

def centuries_in_seconds
  self * CENTURY
end

#clamp(minimum, maximum = nil) ⇒ Object

rubocop:disable Metrics/CyclomaticComplexity, Metrics/PerceivedComplexity



87
88
89
90
91
92
93
94
95
96
97
98
99
100
 
# File 'lib/active_object/numeric.rb', line 87

def clamp(minimum, maximum = nil)
  if maximum.nil? && minimum.is_a?(Range)
    min_min = minimum.min
    min_max = minimum.max

    return min_min if self < min_min

    self > min_max ? min_max : self
  else
    return minimum if self < minimum

    self > maximum ? maximum : self
  end
end

#days_in_seconds ⇒ Object Also known as: day_in_seconds

rubocop:enable Metrics/CyclomaticComplexity, Metrics/PerceivedComplexity



103
104
105
 
# File 'lib/active_object/numeric.rb', line 103

def days_in_seconds
  self * DAY
end

#decades_in_seconds ⇒ Object Also known as: decade_in_seconds 



109
110
111
 
# File 'lib/active_object/numeric.rb', line 109

def decades_in_seconds
  self * DECADE
end

#decagrams_in_grams ⇒ Object Also known as: decagram_in_grams 



115
116
117
 
# File 'lib/active_object/numeric.rb', line 115

def decagrams_in_grams
  self * DECA
end

#decameters_in_meters ⇒ Object Also known as: decameter_in_meters 



121
122
123
 
# File 'lib/active_object/numeric.rb', line 121

def decameters_in_meters
  self * DECA
end

#decigrams_in_grams ⇒ Object Also known as: decigram_in_grams 



127
128
129
 
# File 'lib/active_object/numeric.rb', line 127

def decigrams_in_grams
  self * DECI
end

#decimeters_in_meters ⇒ Object Also known as: decimeter_in_meters 



133
134
135
 
# File 'lib/active_object/numeric.rb', line 133

def decimeters_in_meters
  self * DECI
end

#decrement(amount = 1.0) ⇒ Object 



139
140
141
 
# File 'lib/active_object/numeric.rb', line 139

def decrement(amount = 1.0)
  self + amount
end

#degrees_to_radians ⇒ Object Also known as: degree_to_radians 



143
144
145
 
# File 'lib/active_object/numeric.rb', line 143

def degrees_to_radians
  self * Math::PI / 180.0
end

#distance(num) ⇒ Object 



149
150
151
 
# File 'lib/active_object/numeric.rb', line 149

def distance(num)
  (self - num).abs
end

#divide(num) ⇒ Object 



153
154
155
 
# File 'lib/active_object/numeric.rb', line 153

def divide(num)
  self / num
end

#exabytes_in_bytes ⇒ Object Also known as: exabyte_in_bytes 



157
158
159
 
# File 'lib/active_object/numeric.rb', line 157

def exabytes_in_bytes
  self * EXABYTE
end

#feet_in_inches ⇒ Object Also known as: foot_in_inches 



163
164
165
 
# File 'lib/active_object/numeric.rb', line 163

def feet_in_inches
  self * FEET
end

#gigabytes_in_bytes ⇒ Object Also known as: gigabyte_in_bytes 



169
170
171
 
# File 'lib/active_object/numeric.rb', line 169

def gigabytes_in_bytes
  self * GIGABYTE
end

#grams_in_grams ⇒ Object Also known as: gram_in_grams 



175
176
177
 
# File 'lib/active_object/numeric.rb', line 175

def grams_in_grams
  self
end

#greater_than?(num) ⇒ Boolean

Returns:

  • (Boolean) 


181
182
183
 
# File 'lib/active_object/numeric.rb', line 181

def greater_than?(num)
  self > num
end

#greater_than_or_equal_to?(num) ⇒ Boolean

Returns:

  • (Boolean) 


185
186
187
 
# File 'lib/active_object/numeric.rb', line 185

def greater_than_or_equal_to?(num)
  self >= num
end

#hectograms_in_grams ⇒ Object Also known as: hectogram_in_grams 



189
190
191
 
# File 'lib/active_object/numeric.rb', line 189

def hectograms_in_grams
  self * HECTO
end

#hectometers_in_meters ⇒ Object Also known as: hectometer_in_meters 



195
196
197
 
# File 'lib/active_object/numeric.rb', line 195

def hectometers_in_meters
  self * HECTO
end

#hours_in_seconds ⇒ Object Also known as: hour_in_seconds 



201
202
203
 
# File 'lib/active_object/numeric.rb', line 201

def hours_in_seconds
  self * HOUR
end

#inches_in_inches ⇒ Object Also known as: inch_in_inches 



207
208
209
 
# File 'lib/active_object/numeric.rb', line 207

def inches_in_inches
  self
end

#increment(amount = 1.0) ⇒ Object 



213
214
215
 
# File 'lib/active_object/numeric.rb', line 213

def increment(amount = 1.0)
  self + amount
end

#inside?(start, finish) ⇒ Boolean

Returns:

  • (Boolean) 


217
218
219
 
# File 'lib/active_object/numeric.rb', line 217

def inside?(start, finish)
  (start < self) && (self < finish)
end

#kilobytes_in_bytes ⇒ Object Also known as: kilobyte_in_bytes 



221
222
223
 
# File 'lib/active_object/numeric.rb', line 221

def kilobytes_in_bytes
  self * KILOBYTE
end

#kilograms_in_grams ⇒ Object Also known as: kilogram_in_grams 



233
234
235
 
# File 'lib/active_object/numeric.rb', line 233

def kilograms_in_grams
  self * KILO
end

#kilometers_in_meters ⇒ Object Also known as: kilometer_in_meters 



227
228
229
 
# File 'lib/active_object/numeric.rb', line 227

def kilometers_in_meters
  self * KILO
end

#less_than?(num) ⇒ Boolean

Returns:

  • (Boolean) 


239
240
241
 
# File 'lib/active_object/numeric.rb', line 239

def less_than?(num)
  self < num
end

#less_than_or_equal_to?(num) ⇒ Boolean

Returns:

  • (Boolean) 


243
244
245
 
# File 'lib/active_object/numeric.rb', line 243

def less_than_or_equal_to?(num)
  self <= num
end

#megabytes_in_bytes ⇒ Object Also known as: megabyte_in_bytes 



253
254
255
 
# File 'lib/active_object/numeric.rb', line 253

def megabytes_in_bytes
  self * MEGABYTE
end

#meters_in_meters ⇒ Object Also known as: meter_in_meters 



259
260
261
 
# File 'lib/active_object/numeric.rb', line 259

def meters_in_meters
  self
end

#metric_tons_in_grams ⇒ Object Also known as: metric_ton_in_grams 



247
248
249
 
# File 'lib/active_object/numeric.rb', line 247

def metric_tons_in_grams
  self * METRIC_TON
end

#miles_in_inches ⇒ Object Also known as: mile_in_inches 



265
266
267
 
# File 'lib/active_object/numeric.rb', line 265

def miles_in_inches
  self * MILE
end

#millenniums_in_seconds ⇒ Object Also known as: millennium_in_seconds 



271
272
273
 
# File 'lib/active_object/numeric.rb', line 271

def millenniums_in_seconds
  self * MILLENNIUM
end

#milligrams_in_grams ⇒ Object Also known as: milligram_in_grams 



277
278
279
 
# File 'lib/active_object/numeric.rb', line 277

def milligrams_in_grams
  self * MILLI
end

#millimeters_in_meters ⇒ Object Also known as: millimeter_in_meters 



283
284
285
 
# File 'lib/active_object/numeric.rb', line 283

def millimeters_in_meters
  self * MILLI
end

#minutes_in_seconds ⇒ Object Also known as: minute_in_seconds 



289
290
291
 
# File 'lib/active_object/numeric.rb', line 289

def minutes_in_seconds
  self * MINUTE
end

#multiple_of?(number) ⇒ Boolean

Returns:

  • (Boolean) 


299
300
301
 
# File 'lib/active_object/numeric.rb', line 299

def multiple_of?(number)
  number.zero? ? zero? : modulo(number).zero?
end

#multiply(num) ⇒ Object 



295
296
297
 
# File 'lib/active_object/numeric.rb', line 295

def multiply(num)
  self * num
end

#nautical_miles_in_inches ⇒ Object Also known as: nautical_mile_in_inches 



303
304
305
 
# File 'lib/active_object/numeric.rb', line 303

def nautical_miles_in_inches
  self * NAUTICAL_MILE
end

#negative? ⇒ Boolean

rubocop:disable Style/NumericPredicate

Returns:

  • (Boolean) 


310
311
312
 
# File 'lib/active_object/numeric.rb', line 310

def negative?
  self < 0
end

#ordinal ⇒ Object

rubocop:enable Style/NumericPredicate



315
316
317
318
319
320
321
322
323
324
325
326
 
# File 'lib/active_object/numeric.rb', line 315

def ordinal
  if (11..13).cover?(abs % 100)
    'th'
  else
    case abs % 10
    when 1 then 'st'
    when 2 then 'nd'
    when 3 then 'rd'
    else 'th'
    end
  end
end

#ordinalize ⇒ Object 



328
329
330
 
# File 'lib/active_object/numeric.rb', line 328

def ordinalize
  "#{self}#{ordinal}"
end

#ounces_in_ounces ⇒ Object Also known as: ounce_in_ounces 



332
333
334
 
# File 'lib/active_object/numeric.rb', line 332

def ounces_in_ounces
  self
end

#outside?(start, finish) ⇒ Boolean

Returns:

  • (Boolean) 


338
339
340
 
# File 'lib/active_object/numeric.rb', line 338

def outside?(start, finish)
  (self < start) || (finish < self)
end

#pad(options = {}) ⇒ Object 



342
343
344
345
346
347
 
# File 'lib/active_object/numeric.rb', line 342

def pad(options = {})
  pad_number = options[:pad_number] || 0
  precision = options[:precision] || 3

  to_s.rjust(precision, pad_number.to_s)
end

#pad_precision(options = {}) ⇒ Object

rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity rubocop:disable Metrics/MethodLength, Metrics/PerceivedComplexity



351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
 
# File 'lib/active_object/numeric.rb', line 351

def pad_precision(options = {})
  pad_number = options[:pad_number] || 0
  precision = options[:precision] || 2
  separator = options[:separator] || '.'
  string = to_s

  string << separator unless string.include?(separator)
  ljust_count = string.split(separator).first.length
  ljust_count += (string.count(separator) + precision) if precision.positive?

  if ljust_count >= string.length
    string.ljust(ljust_count, pad_number.to_s)
  else
    string[0..(ljust_count - 1)]
  end
end

#petabytes_in_bytes ⇒ Object Also known as: petabyte_in_bytes

rubocop:enable Metrics/AbcSize, Metrics/CyclomaticComplexity rubocop:enable Metrics/MethodLength, Metrics/PerceivedComplexity



370
371
372
 
# File 'lib/active_object/numeric.rb', line 370

def petabytes_in_bytes
  self * PETABYTE
end

#positive? ⇒ Boolean

rubocop:disable Style/NumericPredicate

Returns:

  • (Boolean) 


377
378
379
 
# File 'lib/active_object/numeric.rb', line 377

def positive?
  self > 0
end

#pounds_in_ounces ⇒ Object Also known as: pound_in_ounces

rubocop:enable Style/NumericPredicate



382
383
384
 
# File 'lib/active_object/numeric.rb', line 382

def pounds_in_ounces
  self * POUND
end

#power(num) ⇒ Object 



388
389
390
 
# File 'lib/active_object/numeric.rb', line 388

def power(num)
  self**num
end

#root(num) ⇒ Object 



392
393
394
 
# File 'lib/active_object/numeric.rb', line 392

def root(num)
  self**(1.0 / num)
end

#seconds_in_seconds ⇒ Object Also known as: second_in_seconds 



396
397
398
 
# File 'lib/active_object/numeric.rb', line 396

def seconds_in_seconds
  self
end

#stones_in_ounces ⇒ Object Also known as: stone_in_ounces 



402
403
404
 
# File 'lib/active_object/numeric.rb', line 402

def stones_in_ounces
  self * STONE
end

#subtract(num) ⇒ Object 



408
409
410
 
# File 'lib/active_object/numeric.rb', line 408

def subtract(num)
  self - num
end

#terabytes_in_bytes ⇒ Object Also known as: terabyte_in_bytes 



412
413
414
 
# File 'lib/active_object/numeric.rb', line 412

def terabytes_in_bytes
  self * TERABYTE
end

#to_byte(from, to) ⇒ Object 



418
419
420
421
 
# File 'lib/active_object/numeric.rb', line 418

def to_byte(from, to)
  assert_inclusion_of_valid_keys!(BYTE_KEYS, from, to)
  to_f * 1.send("#{from}_in_bytes").to_f / 1.send("#{to}_in_bytes").to_f
end

#to_currency(options = {}) ⇒ Object 



423
424
425
426
427
 
# File 'lib/active_object/numeric.rb', line 423

def to_currency(options = {})
  unit = options[:unit] || '$'

  "#{unit}#{pad_precision(options.only(:precision))}"
end

#to_length(from, to) ⇒ Object

rubocop:disable Metrics/AbcSize, Metrics/MethodLength



430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
 
# File 'lib/active_object/numeric.rb', line 430

def to_length(from, to)
  assert_inclusion_of_valid_keys!(LENGTH_KEYS.values.flatten, from, to)
  metric_keys = LENGTH_KEYS.fetch(:metric)
  return self if from == to
  metrics_included_from = metric_keys.include?(from)

  case to
  when :meter, :meters, :millimeter, :millimeters, :centimeter, :centimeters, :decimeter,
       :decimeters, :decameter, :decameters, :hectometer, :hectometers, :kilometer, :kilometers
    if metrics_included_from
      to_f * 1.send("#{from}_in_meters").to_f / 1.send("#{to}_in_meters").to_f
    else
      to_f * ((1.send("#{from}_in_inches").to_f * 0.0254) / 1.send("#{to}_in_meters").to_f)
    end
  when :inch, :inches, :foot, :feet, :yard, :yards, :mile, :miles, :nautical_mile, :nautical_miles
    if metrics_included_from
      to_f * ((1.send("#{from}_in_meters").to_f * 39.3701) / 1.send("#{to}_in_inches").to_f)
    else
      to_f * 1.send("#{from}_in_inches").to_f / 1.send("#{to}_in_inches").to_f
    end
  end
end

#to_mass(from, to) ⇒ Object

rubocop:disable Metrics/AbcSize, Metrics/MethodLength



455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
 
# File 'lib/active_object/numeric.rb', line 455

def to_mass(from, to)
  assert_inclusion_of_valid_keys!(MASS_KEYS.values.flatten, from, to)
  metric_keys = MASS_KEYS.fetch(:metric)
  return self if from == to
  metrics_included_from = metric_keys.include?(from)

  case to
  when :gram, :grams, :milligram, :milligrams, :centigram, :centigrams, :decigram, :decigrams,
       :decagram, :decagrams, :hectogram, :hectograms, :kilogram, :kilograms, :metric_ton,
       :metric_tons
    if metrics_included_from
      to_f * 1.send("#{from}_in_grams").to_f / 1.send("#{to}_in_grams").to_f
    else
      to_f * ((1.send("#{from}_in_ounces") * 28.3495).to_f / 1.send("#{to}_in_grams").to_f)
    end
  when :ounce, :ounces, :pound, :pounds, :stone, :stones, :ton, :tons
    if metrics_included_from
      to_f * ((1.send("#{from}_in_grams") * 0.035274).to_f / 1.send("#{to}_in_ounces").to_f)
    else
      to_f * 1.send("#{from}_in_ounces").to_f / 1.send("#{to}_in_ounces").to_f
    end
  end
end

#to_nearest_value(values = []) ⇒ Object

rubocop:enable Metrics/AbcSize, Metrics/MethodLength



480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
 
# File 'lib/active_object/numeric.rb', line 480

def to_nearest_value(values = [])
  return self if values.length.zero?

  value = values.first
  difference = (self - value).abs

  values.each do |val|
    if (self - val).abs < difference
      difference = (self - val).abs
      value = val
    end
  end

  value
end

#to_percentage(options = {}) ⇒ Object 



496
497
498
499
500
 
# File 'lib/active_object/numeric.rb', line 496

def to_percentage(options = {})
  unit = options[:unit] || '%'

  "#{pad_precision(options.only(:precision))}#{unit}"
end

#to_temperature(from, to) ⇒ Object

rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity



503
504
505
506
507
508
509
510
511
512
513
514
515
 
# File 'lib/active_object/numeric.rb', line 503

def to_temperature(from, to)
  assert_inclusion_of_valid_keys!(TEMPERATURE_KEYS, from, to)
  return self if from == to

  case to
  when :celsius
    from == :kelvin ? (self - 273.15) : ((self - 32.0) * 5.0 / 9.0)
  when :fahrenheit
    from == :kelvin ? (1.8 * (self - 273.15) + 32.0) : ((self * 9.0 / 5.0) + 32.0)
  when :kelvin
    from == :celsius ? (self + 273.15) : (((self - 32.0) * 5.0 / 9.0) + 273.15)
  end
end

#to_time(from, to) ⇒ Object

rubocop:enable Metrics/AbcSize, Metrics/CyclomaticComplexity



518
519
520
521
 
# File 'lib/active_object/numeric.rb', line 518

def to_time(from, to)
  assert_inclusion_of_valid_keys!(TIME_KEYS, from, to)
  (to_f * 1.send("#{from}_in_seconds").to_f) / 1.send("#{to}_in_seconds").to_f
end

#tons_in_ounces ⇒ Object Also known as: ton_in_ounces 



523
524
525
 
# File 'lib/active_object/numeric.rb', line 523

def tons_in_ounces
  self * TON
end

#weeks_in_seconds ⇒ Object Also known as: week_in_seconds 



529
530
531
 
# File 'lib/active_object/numeric.rb', line 529

def weeks_in_seconds
  self * WEEK
end

#within?(number, epsilon = 0.01) ⇒ Boolean

Returns:

  • (Boolean) 


535
536
537
538
539
540
541
542
 
# File 'lib/active_object/numeric.rb', line 535

def within?(number, epsilon = 0.01)
  return self == number if epsilon.zero?

  alpha = to_f
  beta = number.to_f

  alpha.zero? || beta.zero? ? (alpha - beta).abs < epsilon : (alpha / beta - 1).abs < epsilon
end

#yards_in_inches ⇒ Object Also known as: yard_in_inches 



544
545
546
 
# File 'lib/active_object/numeric.rb', line 544

def yards_in_inches
  self * YARD
end

#years_in_seconds ⇒ Object Also known as: year_in_seconds 



550
551
552
 
# File 'lib/active_object/numeric.rb', line 550

def years_in_seconds
  self * YEAR
end