Module Numeric::Transformer
In: lib/merb-helpers/core_ext/numeric.rb

Methods

Public Class methods

Adds a new format to the existing transforming formats

Parameters

format <Hash>:format defining how to transform numeric values

Examples

Changes the default format to use when transforming a Numeric instance

Parameters

format_code <Symbol>:format name to use as the new default format

Returns

Hash:a hash representing the default format

Accessor for the default format in use

accessor for @formats

Converts a numeric value representing minutes into a string representing an hour value

Parameters

number<Numeric>:Numeric value representing minutes to convert in hours

Returns

String:a string representing the numeric value converted in hours

Examples

minutes_to_hours(315) => "05:15"

Formats a number into a currency string (e.g., $13.65). You can specify a format to use and even overwrite some of the format options.

Parameters

number<Numeric>:Numeric value to convert
format_name<Symbol>:name of the format to use
options<Hash>:options which will overwrite the used format

Returns

String:a string representing the number converted in currency

Options

:precision - Sets the level of precision :unit - Sets the denomination of the currency :format - Sets the format of the output string (defaults to "%u%n"). The field types are:

%u The currency unit %n The number

Examples

to_currency(1234567890.506, :US, :precision => 1) # => "$1,234,567,890.5" to_currency(1234567890.516, :FR) # =>"1 234 567 890,52€" to_currency(1234567890.516, :US, :unit => "€") # =>"€1,234,567,890.52" to_currency(1234567890.506, :US, :precision => 3, :unit => "€") # => "€1,234,567,890.506" to_currency(1234567890.506, :AU, :unit => "$AUD", :format => ’%n %u’) # => "1,234,567,890.51 $AUD"

Formats a number into a two digit string. Basically it prepends an integer to a 2 digits string.

Parameters

number<Numeric>:Numeric value to convert

Returns

String:a string representing the number converted into a 2 digits string.

Examples

two_digits(5-3) # => "02"

Formats a number with grouped thousands using delimiter (e.g., 12,324). You can pass another format to format the number differently.

Parameters

format_name<Symbol>:name of the format to use
options<Hash>:options which will overwrite the used format

Returns

String:a string representing the delimited number

Options

:delimiter - Overwrites the thousands delimiter. :separator - Overwrites the separator between the units.

Examples

with_delimiter(12345678) # => 12,345,678 with_delimiter(12345678.05) # => 12,345,678.05 with_delimiter(12345678, :FR) # => 12.345.678 with_delimiter(12345678, :US) # => 12,345,678

Formats a number with a level of :precision (e.g., 112.32 has a precision of 2). You can pass another format to use and even overwrite the format‘s options.

Parameters

format_name<Symbol>:name of the format to use
options<Hash>:options which will overwrite the used format

Returns

String:a string representing the delimited number

Options

:precision - Overwrites the level of precision :separator - Overwrites the separator between the units :delimiter - Overwrites the thousands delimiter

Examples

with_precision(111.2345) # => 111.235 with_precision(111.2345, :UK, :precision => 1) # => "111.2" with_precision(1234.567, :US, :precision => 1, :separator => ’,’, :delimiter => ’-’) # => "1-234,6"

[Validate]