esirK

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

esirK

import psycopg2


class Database:
    def __init__(self, dbname, user, password):
        self.conn = psycopg2.connect(database=dbname, user=user, password=password)
        self.cur = self.conn.cursor()

    def query(self, query):
        self.cur.execute(query)

esirK

package decorator_pattern

abstract class Beverage {
    open var description: String = "Beverage UnKnown"
    
    //Every beverage must define its own cost
    abstract fun cost()
}

esirK

class Espresso: Beverage() {

    override var description: String="Espresso coffee"

    override fun cost(): Double {
        return 1.99
    }

}

esirK

abstract class CondimentDecorator: Beverage() {
    abstract override var description: String
}

class Soya(var beverage: Beverage): CondimentDecorator() {

    override fun cost(): Double {
        return beverage.cost() + 1.0
    }

esirK

fun main(args: Array<String>) {
    var beverage: Beverage

    beverage = Espresso()
    println(" Your Order: \n ${beverage.description}\n Total Cost: ${beverage.cost()}")
}

esirK

fun main(args: Array<String>) {
    var beverage: Beverage
    beverage = Espresso()

    var beverageWithTopping = Mocha(beverage)
    //Mocha decorates Espresso 
    println("You bought ${beverageWithTopping.description} Total cost: ${beverageWithTopping.cost()}")
    
    //If we decide to add a new topping ontop of Mocha, we just need to wrap the beverageWithTopping inside the Topping e.g
    beverageWithTopping = Soya(beverageWithTopping)

esirK

from django.db import models

class Author(models.Model):
  name = models.CharField(max_length=255)
  email = models.EmailField()

esirK

class Article(models.Model):
    title = models.CharField(max_length=120)
    description = models.TextField()
    body = models.TextField()
    author = models.ForeignKey('Author', related_name='articles')

esirK

from django.contrib import admin

from .models import Article, Author


admin.site.register(Article)
admin.site.register(Author)