Aula 39 – Loja Online – Django – Criando o Carrinho
Aula 39 – Loja Online – Django – Criando o componente Carrinho
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Aula 39 – Loja Online – Django – Criando o componente Carrinho
Vamos começar criando o componente carts.
Ative o ambiente virtual e entre na pasta onde tá o manage.py.
Agora rode:
python manage.py startapp cartsEsse comando cria vários arquivos automaticamente como já sabemos.
Então, abra a nova pasta criada, a carts, e abra o arquivo views.py.
Dentro, vamos criar, pelo menos por enquanto, uma function-based view.
src/carts/views.py
from django.shortcuts import render
def cart_home(request):
return render(request, "carts/home.html", {} )
Passamos a request, o path e um context vazio.
Dentro da pasta do app carts, crie uma subpasta chamada templates e dentro dela uma subpasta chamada carts.
Dentro da carts/templates/carts, crie o home.html com o seguinte conteúdo.
src/carts/templates/carts/home.html
{% extends "base.html" %}
{% block content %}
<h1>Carrinho</h1>
{% endblock %}Abra o settings.py dentro da pasta e_commerce e coloque o conteúdo destacado em azul.
src/e_commerce/settings.py
"""
Django settings for e_commerce project.
Generated by 'django-admin startproject' using Django 2.1.4.
For more information on this file, see
https://docs.djangoproject.com/en/2.1/topics/settings/
For the full list of settings and their values, see
https://docs.djangoproject.com/en/2.1/ref/settings/
"""
import os
# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/2.1/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'xjmv-0^l__duq4-xp54m94bsf02lx4&1xka_ykd_(7(5#9^1o^'
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True
ALLOWED_HOSTS = []
# Application definition
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
#our apps
'carts',
'products',
'search',
'tags',
]
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
ROOT_URLCONF = 'e_commerce.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [os.path.join(BASE_DIR, 'templates')],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]
WSGI_APPLICATION = 'e_commerce.wsgi.application'
# Database
# https://docs.djangoproject.com/en/2.1/ref/settings/#databases
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
}
}
# Password validation
# https://docs.djangoproject.com/en/2.1/ref/settings/#auth-password-validators
AUTH_PASSWORD_VALIDATORS = [
{
'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
},
]
# Internationalization
# https://docs.djangoproject.com/en/2.1/topics/i18n/
LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'UTC'
USE_I18N = True
USE_L10N = True
USE_TZ = True
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/2.1/howto/static-files/
STATIC_URL = '/static/'
STATICFILES_DIRS = [
os.path.join(BASE_DIR, "static_local")
]
STATIC_ROOT = os.path.join(os.path.dirname(BASE_DIR), "static_cdn", "static_root")
MEDIA_URL = '/media/'
MEDIA_ROOT = os.path.join(os.path.dirname(BASE_DIR), "static_cdn", "media_root")
Agora vamos levar nossa function-based view a cart_home(), que a gente criou, para a urls.py.
src/e_commerce/urls.py
from django.conf import settings
from django.conf.urls.static import static
from django.contrib import admin
from django.urls import path, include
from django.views.generic import TemplateView
from carts.views import cart_home
from .views import (home_page,
about_page,
contact_page,
login_page,
logout_page,
register_page
)
urlpatterns = [
path('', home_page, name='home'),
path('about/', about_page, name='about'),
path('contact/', contact_page, name='contact'),
path('cart/', cart_home, name='cart'),
path('login/', login_page, name='login'),
path('logout/', logout_page, name='logout'),
path('register/', register_page, name='register'),
path('bootstrap/', TemplateView.as_view(template_name='bootstrap/example.html')),
path('search/', include("search.urls", namespace="search")),
path('products/', include("products.urls", namespace="products")),
path('admin/', admin.site.urls),
]
if settings.DEBUG:
urlpatterns = urlpatterns + static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
urlpatterns = urlpatterns + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
