Class: JunglePath::DBAccess::IO::Copy

Inherits:
Object
  • Object
show all
Includes:
InitDB
Defined in:
lib/jungle_path/db_access/io/copy.rb

Instance Method Summary collapse

Methods included from InitDB

#handle_json_columns, #initialize

Instance Method Details

#from_table(model_class) ⇒ Object 



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# File 'lib/jungle_path/db_access/io/copy.rb', line 12

def from_table model_class
  nil
end

#into_table(model_class, data_file) ⇒ Object 



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# File 'lib/jungle_path/db_access/io/copy.rb', line 16

def into_table model_class, data_file
  done = false
  loops = 0
  until done
    loops +=1
    puts "loops: #{loops}."
    error = nil
    file_reader = JunglePath::DBAccess::IO::ChunkedFileReader.new data_file unless file_reader # must work with chunks of lines since we won't know which exact line was bad if there is a postgresql error.
    begin
      @db.copy_into(model_class.table_name, :data => file_reader)
    rescue Sequel::ForeignKeyConstraintViolation => e
      error = e
    rescue Sequel::UniqueConstraintViolation => e
      error = e
    rescue Sequel::DatabaseError => e
      error = e
    rescue Exception => e
      error = e
    end
    if error
      if file_reader.chunk_size == 1
        log_error "bad data: exception: #{error.class}."
        log_error "  message: #{error.message.gsub("\n", '\n').gsub("\r", '\r')}."
        log_error "  was_bad_chunk: start_at: #{file_reader.start_at}, chunk_size: #{file_reader.chunk_size}."
        line = file_reader.line
        log_error "  line: #{line.gsub("\n", '\n').gsub("\r", '\r')}."
        parts = line.split("\t")
        parts.each_with_index do |part, index|
          log_error "    #{index}: part: #{part}."
        end
      end
      file_reader.was_bad_chunk
    else
      puts "was_good_chunk: start_at: #{file_reader.start_at}, chunk_size: #{file_reader.chunk_size}."
      file_reader.was_good_chunk
    end
    done = file_reader.done
    if done
      log "done with #{model_class.table_name}."
    end
  end
end

#log(msg) ⇒ Object 



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# File 'lib/jungle_path/db_access/io/copy.rb', line 65

def log(msg)
  #binding.pry
  puts "log info: #{msg}"
  @logger.info(msg) if @logger
end

#log_error(msg) ⇒ Object 



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# File 'lib/jungle_path/db_access/io/copy.rb', line 59

def log_error(msg)
  #binding.pry
  puts "log error: #{msg}"
  @logger.error(msg)
end