├── myproject
├── __init__.py
├── core
│ ├── __init__.py
│ ├── migrations
│ │ ├── __init__.py
│ │ ├── 0002_auto_20200505_0338.py
│ │ └── 0001_initial.py
│ ├── tests.py
│ ├── apps.py
│ ├── urls.py
│ ├── admin.py
│ ├── models.py
│ ├── views.py
│ └── templates
│ │ ├── base.html
│ │ ├── includes
│ │ └── nav.html
│ │ └── index.html
├── urls.py
├── wsgi.py
└── settings.py
├── requirements.txt
├── contrib
└── env_gen.py
├── fix
└── products.csv
├── manage.py
├── .gitignore
└── README.md
/myproject/__init__.py:
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1 |
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/myproject/core/__init__.py:
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1 |
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/myproject/core/migrations/__init__.py:
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1 |
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/myproject/core/tests.py:
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1 | from django.test import TestCase
2 |
3 | # Create your tests here.
4 |
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/myproject/core/apps.py:
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1 | from django.apps import AppConfig
2 |
3 |
4 | class CoreConfig(AppConfig):
5 | name = 'core'
6 |
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/requirements.txt:
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1 | dj-database-url==0.5.0
2 | Django==2.2.27
3 | django-extensions==2.2.9
4 | django-widget-tweaks==1.4.8
5 | python-decouple==3.3
6 | pytz==2019.3
7 | six==1.14.0
8 | sqlparse==0.3.1
9 |
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/myproject/urls.py:
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1 | from django.urls import include, path
2 | from django.contrib import admin
3 | urlpatterns = [
4 | path('', include('myproject.core.urls', namespace='core')),
5 | path('admin/', admin.site.urls),
6 | ]
7 |
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/myproject/core/urls.py:
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1 | from django.urls import path
2 | from myproject.core import views as v
3 |
4 |
5 | app_name = 'core'
6 |
7 |
8 | urlpatterns = [
9 | path('', v.index, name='index'),
10 | path('api/products/', v.products, name='products'),
11 | path('api/categories/', v.categories, name='categories'),
12 | ]
13 |
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/myproject/core/admin.py:
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1 | from django.contrib import admin
2 | from .models import Category, Product
3 |
4 |
5 | @admin.register(Product)
6 | class ProductAdmin(admin.ModelAdmin):
7 | list_display = ('__str__', 'category',)
8 | search_fields = ('title',)
9 | list_filter = ('category',)
10 |
11 |
12 | admin.site.register(Category)
13 |
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/myproject/wsgi.py:
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1 | """
2 | WSGI config for myproject project.
3 |
4 | It exposes the WSGI callable as a module-level variable named ``application``.
5 |
6 | For more information on this file, see
7 | https://docs.djangoproject.com/en/2.2/howto/deployment/wsgi/
8 | """
9 |
10 | import os
11 |
12 | from django.core.wsgi import get_wsgi_application
13 |
14 | os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'myproject.settings')
15 |
16 | application = get_wsgi_application()
17 |
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/contrib/env_gen.py:
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1 | """
2 | Django SECRET_KEY generator.
3 | """
4 | from django.utils.crypto import get_random_string
5 |
6 |
7 | chars = 'abcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*(-_=+)'
8 |
9 | CONFIG_STRING = """
10 | DEBUG=True
11 | SECRET_KEY=%s
12 | ALLOWED_HOSTS=127.0.0.1, .localhost
13 | """.strip() % get_random_string(50, chars)
14 |
15 | # Writing our configuration file to '.env'
16 | with open('.env', 'w') as configfile:
17 | configfile.write(CONFIG_STRING)
18 |
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/fix/products.csv:
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1 | title,price,category
2 | suco de laranja,6,Bebida
3 | refrigerante,5.5,Bebida
4 | água mineral sem gás,4.5,Bebida
5 | pudim de leite,4,Sobremesa
6 | gelatina,1.5,Sobremesa
7 | ambrosia,5,Sobremesa
8 | X-salada,7,Lanche
9 | X-bacon,7,Lanche
10 | X-egg,6,Lanche
11 | X-tudo,10,Lanche
12 | banana,3,Fruta
13 | manga,3,Fruta
14 | melancia,5,Fruta
15 | uva,5,Fruta
16 | morango,5,Fruta
17 | picadinho,15,Refeição
18 | bife com ovo,15,Refeição
19 | frango ao molho,15,Refeição
20 | frango assado,17,Refeição
21 | costela cozida,20,Refeição
22 | costela assada,22,Refeição
23 | prato light,20,Refeição
24 |
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/myproject/core/migrations/0002_auto_20200505_0338.py:
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1 | # Generated by Django 2.2.12 on 2020-05-05 03:38
2 |
3 | from django.db import migrations, models
4 | import django.db.models.deletion
5 |
6 |
7 | class Migration(migrations.Migration):
8 |
9 | dependencies = [
10 | ('core', '0001_initial'),
11 | ]
12 |
13 | operations = [
14 | migrations.AlterField(
15 | model_name='product',
16 | name='category',
17 | field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='categories', to='core.Category', verbose_name='categoria'),
18 | ),
19 | ]
20 |
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/manage.py:
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1 | #!/usr/bin/env python
2 | """Django's command-line utility for administrative tasks."""
3 | import os
4 | import sys
5 |
6 |
7 | def main():
8 | os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'myproject.settings')
9 | try:
10 | from django.core.management import execute_from_command_line
11 | except ImportError as exc:
12 | raise ImportError(
13 | "Couldn't import Django. Are you sure it's installed and "
14 | "available on your PYTHONPATH environment variable? Did you "
15 | "forget to activate a virtual environment?"
16 | ) from exc
17 | execute_from_command_line(sys.argv)
18 |
19 |
20 | if __name__ == '__main__':
21 | main()
22 |
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/myproject/core/models.py:
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1 | from django.db import models
2 |
3 |
4 | class Category(models.Model):
5 | title = models.CharField('categoria', max_length=50, unique=True)
6 |
7 | class Meta:
8 | verbose_name = 'categoria'
9 | verbose_name_plural = 'categorias'
10 |
11 | def __str__(self):
12 | return self.title
13 |
14 |
15 | class Product(models.Model):
16 | title = models.CharField('título', max_length=100, unique=True)
17 | price = models.DecimalField('preço', max_digits=8, decimal_places=2)
18 | category = models.ForeignKey(
19 | Category,
20 | verbose_name='categoria',
21 | related_name='categories',
22 | on_delete=models.SET_NULL,
23 | null=True,
24 | blank=True
25 | )
26 |
27 | class Meta:
28 | ordering = ('title',)
29 | verbose_name = 'produto'
30 | verbose_name_plural = 'produtos'
31 |
32 | def __str__(self):
33 | return self.title
34 |
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/myproject/core/views.py:
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1 | from django.db.models import Count
2 | from django.http import JsonResponse
3 | from django.shortcuts import render
4 | from .models import Product
5 |
6 |
7 | def index(request):
8 | template_name = 'index.html'
9 | return render(request, template_name)
10 |
11 |
12 | def products(request):
13 | products = Product.objects.values('title', 'price')
14 | data = {
15 | 'data': [
16 | {
17 | 'title': item['title'],
18 | 'value': float(item['price'])
19 | }
20 | for item in products
21 | ]
22 | }
23 | return JsonResponse(data)
24 |
25 |
26 | def categories(request):
27 | categories = Product.objects\
28 | .values('category')\
29 | .annotate(value=Count('category'))\
30 | .order_by('category')\
31 | .values('category__title', 'value')
32 | data = {
33 | 'data': [
34 | {
35 | 'label': item['category__title'],
36 | 'value': item['value'],
37 | }
38 | for item in categories
39 | ]
40 | }
41 | return JsonResponse(data)
42 |
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/myproject/core/templates/base.html:
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1 |
2 |
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6 |
7 |
8 |
9 | Django + Chart.js
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20 |
21 | {% block css %}{% endblock css %}
22 |
23 |
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25 |
26 |
27 | {% include "includes/nav.html" %}
28 |
29 |
30 | {% block content %}{% endblock content %}
31 |
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38 |
39 |
40 | {% block js %}{% endblock js %}
41 |
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