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