Class: PG::TextEncoder::Inet

Inherits:
SimpleEncoder show all
Defined in:
lib/pg/text_encoder/inet.rb

Overview

This is a encoder class for conversion of Ruby IPAddr values to PostgreSQL inet type.

As soon as this class is used, it requires the ruby standard library ‘ipaddr’.

Constant Summary

Constants inherited from Coder

Coder::FORMAT_ERROR_MASK, Coder::FORMAT_ERROR_TO_PARTIAL, Coder::FORMAT_ERROR_TO_RAISE, Coder::FORMAT_ERROR_TO_STRING, Coder::TIMESTAMP_APP_LOCAL, Coder::TIMESTAMP_APP_UTC, Coder::TIMESTAMP_DB_LOCAL, Coder::TIMESTAMP_DB_UTC

Instance Attribute Summary

Attributes inherited from Coder

#name

Instance Method Summary collapse

Methods inherited from Coder

#==, #dup, #flags, #flags=, #format, #format=, #initialize, #inspect, #inspect_short, #marshal_dump, #marshal_load, #oid, #oid=, #to_h

Constructor Details

This class inherits a constructor from PG::Coder

Instance Method Details

#encode(value) ⇒ Object 



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# File 'lib/pg/text_encoder/inet.rb', line 12

def encode(value)
	case value
	when IPAddr
		default_prefix = (value.family == Socket::AF_INET ? 32 : 128)
		s = value.to_s
		if value.respond_to?(:prefix)
			prefix = value.prefix
		else
			range = value.to_range
			prefix  = default_prefix - Math.log(((range.end.to_i - range.begin.to_i) + 1), 2).to_i
		end
		s << "/" << prefix.to_s if prefix != default_prefix
		s
	else
		value
	end
end