module ActiveSupport::RangeWithFormat
Range With Format
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
}Public instance methods
to_formatted_s(format = :default)
Alias for:
to_fs.
to_fs(format = :default)
Also aliased as:
to_formatted_s.
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 code GitHub
# File activesupport/lib/active_support/core_ext/range/conversions.rb, line 51
def to_fs(format = :default)
if formatter = RANGE_FORMATS[format]
formatter.call(self.begin, self.end)
else
to_s
end
end