Sha256: 3e4a7efd8cef4b32aacee5c935f71522e8d98f1b18715aea9d6ef0cab8338796

Contents?: true

Size: 961 Bytes

Versions: 6

Compression:

Stored size: 961 Bytes

Contents

require 'mysql'
require 'mysql_blob_streaming'

module RailsConnector

  module BlobMysql #:nodoc:
    def self.included(base)
      base.instance_eval do
        define_method :store_data do
          store_data_atomically {|f| fetch_into_file(f)}
        end
      end
    end

    def fetch_into_file(file)
      mysql = connection.instance_variable_get '@connection'
      stmt = mysql.prepare("SELECT blob_data FROM #{self.class.table_name} WHERE #{self.class.primary_key}=?")

      class << stmt
        include MysqlBlobStreaming

        attr_accessor :file
        attr_accessor :logger

        def handle_data(data)
          @file << data
          data = nil
          GC.start
        end
      end

      stmt.logger = ActiveRecord::Base.logger
      stmt.logger.debug "Streaming blob from MySQL into #{file.path}"
      stmt.file = file
      stmt.execute(id)
      stmt.stream(1.megabyte)
    ensure
      stmt.close if stmt
    end
  end

end

Version data entries

6 entries across 6 versions & 1 rubygems

Version Path
infopark_fiona_connector-6.8.0.210.ed204b0 lib/rails_connector/blob_mysql.rb
infopark_fiona_connector-6.8.0.110.6570b45 lib/rails_connector/blob_mysql.rb
infopark_fiona_connector-6.8.0.72.d18d096 lib/rails_connector/blob_mysql.rb
infopark_fiona_connector-6.8.0.23.da7f96b lib/rails_connector/blob_mysql.rb
infopark_fiona_connector-6.8.0.16.def5e85 lib/rails_connector/blob_mysql.rb
infopark_fiona_connector-6.8.0.beta.200.891.647580e lib/rails_connector/blob_mysql.rb