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Contents
module ActiveSupport
module NumberHelper
class NumberToHumanSizeConverter < NumberConverter #:nodoc:
STORAGE_UNITS = [:byte, :kb, :mb, :gb, :tb, :pb, :eb]
self.namespace = :human
self.validate_float = true
def convert
if opts.key?(:prefix)
ActiveSupport::Deprecation.warn('The :prefix option of `number_to_human_size` is deprecated and will be removed in Rails 5.1 with no replacement.')
end
@number = Float(number)
# for backwards compatibility with those that didn't add strip_insignificant_zeros to their locale files
unless options.key?(:strip_insignificant_zeros)
options[:strip_insignificant_zeros] = true
end
if smaller_than_base?
number_to_format = number.to_i.to_s
else
human_size = number / (base ** exponent)
number_to_format = NumberToRoundedConverter.convert(human_size, options)
end
conversion_format.gsub('%n'.freeze, number_to_format).gsub('%u'.freeze, unit)
end
private
def conversion_format
translate_number_value_with_default('human.storage_units.format', :locale => options[:locale], :raise => true)
end
def unit
translate_number_value_with_default(storage_unit_key, :locale => options[:locale], :count => number.to_i, :raise => true)
end
def storage_unit_key
key_end = smaller_than_base? ? 'byte' : STORAGE_UNITS[exponent]
"human.storage_units.units.#{key_end}"
end
def exponent
max = STORAGE_UNITS.size - 1
exp = (Math.log(number) / Math.log(base)).to_i
exp = max if exp > max # avoid overflow for the highest unit
exp
end
def smaller_than_base?
number.to_i < base
end
def base
opts[:prefix] == :si ? 1000 : 1024
end
end
end
end
Version data entries
50 entries across 48 versions & 8 rubygems