ActiveSupport::RangeWithFormat (original) (raw)

Range With Format

Methods

to_formatted_s,
to_fs

Constants

RANGE_FORMATS	=	{ db: -> (start, stop) do if start && stop case start when String then "BETWEEN '#{start}' AND '#{stop}'" else "BETWEEN '#{start.to_fs(:db)}' AND '#{stop.to_fs(:db)}'" end elsif start case start when String then ">= '#{start}'" else ">= '#{start.to_fs(:db)}'" end elsif stop case stop when String then "<= '#{stop}'" else "<= '#{stop.to_fs(:db)}'" end end end }

Instance Public methods

to_formatted_s(format = :default)Link

to_fs(format = :default)Link

Convert range to a formatted string. See RANGE_FORMATS for predefined formats.

This method is aliased to to_formatted_s.

range = (1..100)           # => 1..100

range.to_s                 # => "1..100"
range.to_fs(:db)           # => "BETWEEN '1' AND '100'"

range = (1..)              # => 1..
range.to_fs(:db)           # => ">= '1'"

range = (..100)            # => ..100
range.to_fs(:db)           # => "<= '100'"

Adding your own range formats to to_fs

You can add your own formats to the Range::RANGE_FORMATS hash. Use the format name as the hash key and a Proc instance.

# config/initializers/range_formats.rb
Range::RANGE_FORMATS[:short] = ->(start, stop) { "Between #{start.to_fs(:db)} and #{stop.to_fs(:db)}" }

Source: show | on GitHub

def to_fs(format = :default) if formatter = RANGE_FORMATS[format] formatter.call(self.begin, self.end) else to_s end end