instance method `unescape_bytea`

Ruby on Rails 2.3.18

Since v2.2.3 Last seen in v3.2.22.5

Available in: v2.2.3 v2.3.18 v3.0.20 v3.1.12 v3.2.22.5

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unescape_bytea(original_value)

Unescapes bytea output from a database to the binary string it represents. NOTE: This is NOT an inverse of escape_bytea! This is only to be used

on escaped binary output from database drive.

Parameters

original_value req

Source

# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 323
      def unescape_bytea(original_value)
        # In each case, check if the value actually is escaped PostgreSQL bytea output
        # or an unescaped Active Record attribute that was just written.
        if @connection.respond_to?(:unescape_bytea)
          self.class.instance_eval do
            define_method(:unescape_bytea) do |value|
              @connection.unescape_bytea(value) if value
            end
          end
        elsif PGconn.respond_to?(:unescape_bytea)
          self.class.instance_eval do
            define_method(:unescape_bytea) do |value|
              PGconn.unescape_bytea(value) if value
            end
          end
        else
          raise 'Your PostgreSQL connection does not support unescape_bytea. Try upgrading to pg 0.9.0 or later.'
        end
        unescape_bytea(original_value)
      end

Defined in activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb line 323 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::ConnectionAdapters::PostgreSQLAdapter

Signature

Parameters