Class: Numeric

Inherits:
Object show all
Defined in:
activesupport/lib/active_support/core_ext/object/blank.rb,
activesupport/lib/active_support/json/encoding.rb,
activesupport/lib/active_support/core_ext/numeric/time.rb,
activesupport/lib/active_support/core_ext/numeric/bytes.rb,
activesupport/lib/active_support/core_ext/object/duplicable.rb,
activesupport/lib/active_support/core_ext/numeric/conversions.rb,
activesupport/lib/active_support/core_ext/string/output_safety.rb

Overview

:nodoc:

Constant Summary collapse

KILOBYTE =
1024
MEGABYTE =
KILOBYTE * 1024
GIGABYTE =
MEGABYTE * 1024
TERABYTE =
GIGABYTE * 1024
PETABYTE =
TERABYTE * 1024
EXABYTE =
PETABYTE * 1024

Instance Method Summary collapse

Instance Method Details

#ago(time = ::Time.current) ⇒ Object Also known as: until

Reads best without arguments: 10.minutes.ago


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# File 'activesupport/lib/active_support/core_ext/numeric/time.rb', line 65

def ago(time = ::Time.current)
  time - self
end

#as_json(options = nil) ⇒ Object

:nodoc:


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# File 'activesupport/lib/active_support/json/encoding.rb', line 215

def as_json(options = nil) #:nodoc:
  self
end

#blank?Boolean

No number is blank:

1.blank? # => false
0.blank? # => false

Returns:

  • (Boolean)

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# File 'activesupport/lib/active_support/core_ext/object/blank.rb', line 102

def blank?
  false
end

#bytesObject Also known as: byte

Enables the use of byte calculations and declarations, like 45.bytes + 2.6.megabytes


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# File 'activesupport/lib/active_support/core_ext/numeric/bytes.rb', line 10

def bytes
  self
end

#daysObject Also known as: day


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# File 'activesupport/lib/active_support/core_ext/numeric/time.rb', line 49

def days
  ActiveSupport::Duration.new(self * 24.hours, [[:days, self]])
end

#duplicable?Boolean

Numbers are not duplicable:

3.duplicable? # => false
3.dup         # => TypeError: can't dup Fixnum

Returns:

  • (Boolean)

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# File 'activesupport/lib/active_support/core_ext/object/duplicable.rb', line 74

def duplicable?
  false
end

#encode_json(encoder) ⇒ Object

:nodoc:


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# File 'activesupport/lib/active_support/json/encoding.rb', line 219

def encode_json(encoder) #:nodoc:
  to_s
end

#exabytesObject Also known as: exabyte


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# File 'activesupport/lib/active_support/core_ext/numeric/bytes.rb', line 40

def exabytes
  self * EXABYTE
end

#fortnightsObject Also known as: fortnight


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# File 'activesupport/lib/active_support/core_ext/numeric/time.rb', line 59

def fortnights
  ActiveSupport::Duration.new(self * 2.weeks, [[:days, self * 14]])
end

#gigabytesObject Also known as: gigabyte


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# File 'activesupport/lib/active_support/core_ext/numeric/bytes.rb', line 25

def gigabytes
  self * GIGABYTE
end

#hoursObject Also known as: hour


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# File 'activesupport/lib/active_support/core_ext/numeric/time.rb', line 44

def hours
  ActiveSupport::Duration.new(self * 3600, [[:seconds, self * 3600]])
end

#html_safe?Boolean

Returns:

  • (Boolean)

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# File 'activesupport/lib/active_support/core_ext/string/output_safety.rb', line 78

def html_safe?
  true
end

#kilobytesObject Also known as: kilobyte


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# File 'activesupport/lib/active_support/core_ext/numeric/bytes.rb', line 15

def kilobytes
  self * KILOBYTE
end

#megabytesObject Also known as: megabyte


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# File 'activesupport/lib/active_support/core_ext/numeric/bytes.rb', line 20

def megabytes
  self * MEGABYTE
end

#minutesObject Also known as: minute


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# File 'activesupport/lib/active_support/core_ext/numeric/time.rb', line 39

def minutes
  ActiveSupport::Duration.new(self * 60, [[:seconds, self * 60]])
end

#petabytesObject Also known as: petabyte


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# File 'activesupport/lib/active_support/core_ext/numeric/bytes.rb', line 35

def petabytes
  self * PETABYTE
end

#secondsObject Also known as: second

Enables the use of time calculations and declarations, like 45.minutes + 2.hours + 4.years.

These methods use Time#advance for precise date calculations when using from_now, ago, etc. as well as adding or subtracting their results from a Time object. For example:

# equivalent to Time.current.advance(months: 1)
1.month.from_now

# equivalent to Time.current.advance(years: 2)
2.years.from_now

# equivalent to Time.current.advance(months: 4, years: 5)
(4.months + 5.years).from_now

While these methods provide precise calculation when used as in the examples above, care should be taken to note that this is not true if the result of `months', `years', etc is converted before use:

# equivalent to 30.days.to_i.from_now
1.month.to_i.from_now

# equivalent to 365.25.days.to_f.from_now
1.year.to_f.from_now

In such cases, Ruby's core Date and Time should be used for precision date and time arithmetic.


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# File 'activesupport/lib/active_support/core_ext/numeric/time.rb', line 34

def seconds
  ActiveSupport::Duration.new(self, [[:seconds, self]])
end

#since(time = ::Time.current) ⇒ Object Also known as: from_now

Reads best with argument: 10.minutes.since(time)


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# File 'activesupport/lib/active_support/core_ext/numeric/time.rb', line 73

def since(time = ::Time.current)
  time + self
end

#terabytesObject Also known as: terabyte


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# File 'activesupport/lib/active_support/core_ext/numeric/bytes.rb', line 30

def terabytes
  self * TERABYTE
end

#to_formatted_s(format = :default, options = {}) ⇒ Object

Provides options for converting numbers into formatted strings. Options are provided for phone numbers, currency, percentage, precision, positional notation, file size and pretty printing.

Options

For details on which formats use which options, see ActiveSupport::NumberHelper

Examples

Phone Numbers:
5551234.to_s(:phone)                                     # => 555-1234
1235551234.to_s(:phone)                                  # => 123-555-1234
1235551234.to_s(:phone, area_code: true)                 # => (123) 555-1234
1235551234.to_s(:phone, delimiter: ' ')                  # => 123 555 1234
1235551234.to_s(:phone, area_code: true, extension: 555) # => (123) 555-1234 x 555
1235551234.to_s(:phone, country_code: 1)                 # => +1-123-555-1234
1235551234.to_s(:phone, country_code: 1, extension: 1343, delimiter: '.')
# => +1.123.555.1234 x 1343

Currency:
1234567890.50.to_s(:currency)                 # => $1,234,567,890.50
1234567890.506.to_s(:currency)                # => $1,234,567,890.51
1234567890.506.to_s(:currency, precision: 3)  # => $1,234,567,890.506
1234567890.506.to_s(:currency, locale: :fr)   # => 1 234 567 890,51 €
-1234567890.50.to_s(:currency, negative_format: '(%u%n)')
# => ($1,234,567,890.50)
1234567890.50.to_s(:currency, unit: '£', separator: ',', delimiter: '')
# => £1234567890,50
1234567890.50.to_s(:currency, unit: '£', separator: ',', delimiter: '', format: '%n %u')
# => 1234567890,50 £

Percentage:
100.to_s(:percentage)                                  # => 100.000%
100.to_s(:percentage, precision: 0)                    # => 100%
1000.to_s(:percentage, delimiter: '.', separator: ',') # => 1.000,000%
302.24398923423.to_s(:percentage, precision: 5)        # => 302.24399%
1000.to_s(:percentage, locale: :fr)                    # => 1 000,000%
100.to_s(:percentage, format: '%n  %')                 # => 100  %

Delimited:
12345678.to_s(:delimited)                     # => 12,345,678
12345678.05.to_s(:delimited)                  # => 12,345,678.05
12345678.to_s(:delimited, delimiter: '.')     # => 12.345.678
12345678.to_s(:delimited, delimiter: ',')     # => 12,345,678
12345678.05.to_s(:delimited, separator: ' ')  # => 12,345,678 05
12345678.05.to_s(:delimited, locale: :fr)     # => 12 345 678,05
98765432.98.to_s(:delimited, delimiter: ' ', separator: ',')
# => 98 765 432,98

Rounded:
111.2345.to_s(:rounded)                                      # => 111.235
111.2345.to_s(:rounded, precision: 2)                        # => 111.23
13.to_s(:rounded, precision: 5)                              # => 13.00000
389.32314.to_s(:rounded, precision: 0)                       # => 389
111.2345.to_s(:rounded, significant: true)                   # => 111
111.2345.to_s(:rounded, precision: 1, significant: true)     # => 100
13.to_s(:rounded, precision: 5, significant: true)           # => 13.000
111.234.to_s(:rounded, locale: :fr)                          # => 111,234
13.to_s(:rounded, precision: 5, significant: true, strip_insignificant_zeros: true)
# => 13
389.32314.to_s(:rounded, precision: 4, significant: true)    # => 389.3
1111.2345.to_s(:rounded, precision: 2, separator: ',', delimiter: '.')
# => 1.111,23

Human-friendly size in Bytes:
123.to_s(:human_size)                                   # => 123 Bytes
1234.to_s(:human_size)                                  # => 1.21 KB
12345.to_s(:human_size)                                 # => 12.1 KB
1234567.to_s(:human_size)                               # => 1.18 MB
1234567890.to_s(:human_size)                            # => 1.15 GB
1234567890123.to_s(:human_size)                         # => 1.12 TB
1234567.to_s(:human_size, precision: 2)                 # => 1.2 MB
483989.to_s(:human_size, precision: 2)                  # => 470 KB
1234567.to_s(:human_size, precision: 2, separator: ',') # => 1,2 MB
1234567890123.to_s(:human_size, precision: 5)           # => "1.1229 TB"
524288000.to_s(:human_size, precision: 5)               # => "500 MB"

Human-friendly format:
123.to_s(:human)                                       # => "123"
1234.to_s(:human)                                      # => "1.23 Thousand"
12345.to_s(:human)                                     # => "12.3 Thousand"
1234567.to_s(:human)                                   # => "1.23 Million"
1234567890.to_s(:human)                                # => "1.23 Billion"
1234567890123.to_s(:human)                             # => "1.23 Trillion"
1234567890123456.to_s(:human)                          # => "1.23 Quadrillion"
1234567890123456789.to_s(:human)                       # => "1230 Quadrillion"
489939.to_s(:human, precision: 2)                      # => "490 Thousand"
489939.to_s(:human, precision: 4)                      # => "489.9 Thousand"
1234567.to_s(:human, precision: 4,
                 significant: false)                   # => "1.2346 Million"
1234567.to_s(:human, precision: 1,
                 separator: ',',
                 significant: false)                   # => "1,2 Million"

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# File 'activesupport/lib/active_support/core_ext/numeric/conversions.rb', line 100

def to_formatted_s(format = :default, options = {})
  case format
  when :phone
    return ActiveSupport::NumberHelper.number_to_phone(self, options)
  when :currency
    return ActiveSupport::NumberHelper.number_to_currency(self, options)
  when :percentage
    return ActiveSupport::NumberHelper.number_to_percentage(self, options)
  when :delimited
    return ActiveSupport::NumberHelper.number_to_delimited(self, options)
  when :rounded
    return ActiveSupport::NumberHelper.number_to_rounded(self, options)
  when :human
    return ActiveSupport::NumberHelper.number_to_human(self, options)
  when :human_size
    return ActiveSupport::NumberHelper.number_to_human_size(self, options)
  else
    self.to_default_s
  end
end

#weeksObject Also known as: week


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# File 'activesupport/lib/active_support/core_ext/numeric/time.rb', line 54

def weeks
  ActiveSupport::Duration.new(self * 7.days, [[:days, self * 7]])
end