kritik

import os
import pathlib
import logging
from telegram.ext import Updater
from telegram.ext import Filters
from telegram.ext import CommandHandler
from telegram.ext import MessageHandler

# This is the Telegram Bot that prints all input documents. It can print pdf and txt files.
# Before sending files for printing user must enter the password by command "/auth <password>".

kritik

http://www.postgresql.org/download/linux/ubuntu/

TL;DR

sudo pg_dropcluster 9.4 main --stop
sudo pg_upgradecluster 9.3 main
sudo pg_dropcluster 9.3 main

kritik

class Product < ActiveRecord::Base

  has_many :material_product_mappings, :dependent => :destroy, :inverse_of => :product
  has_many :materials, :through => :material_product_mappings, :autosave => true
  accepts_nested_attributes_for :material_product_mappings # really needed feature
  #...



end