diango_v1

Test with diango

Install Diango

pip install django

Make project

django-admin startproject app1

Start webserver

python manage.py runserver

Available subcommands:

[auth]
    changepassword
    createsuperuser

[contenttypes]
    remove_stale_contenttypes

[django]
    check
    compilemessages
    createcachetable
    dbshell
    diffsettings
    dumpdata
    flush
    inspectdb
    loaddata
    makemessages
    makemigrations
    migrate
    sendtestemail
    shell
    showmigrations
    sqlflush
    sqlmigrate
    sqlsequencereset
    squashmigrations
    startapp
    startproject
    test
    testserver

[sessions]
    clearsessions

[staticfiles]
    collectstatic
    findstatic
    runserver

(diango_v1) D:\programing\py360\diango_v1\project\app1>

Err connect to PostgreSQl

django.core.exceptions.ImproperlyConfigured: Error loading psycopg2 module: No module named 'psycopg2'

psycopg2 psycopg2-binary

Migrate Db to Other DBMS

python manage.py makemigrations python manage.py migrate

---

Start a sub app/service

python manage.py startapp api1

---

https://viblo.asia/p/python-co-ban-voi-django-framework-Ljy5VxGkZra

https://minhng.info/tutorials/hoc-django-trong-1-ngay.html

python manage.py startapp book

Add app to setting

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'api1',
    'book',
]

Make model

class Category(models.Model):
   name = models.CharField(max_length=200)
   def __str__(self):
     return self.name

#Book model có field name, price, category, author_name
class Book(models.Model):
   name = models.CharField(max_length=200)
   price = models.IntegerField(default=0)
   category = models.ForeignKey(Category, on_delete=models.CASCADE)
   author_name = models.CharField(max_length=200)
   def __str__(self):
     return self.name

Migrate

python manage.py makemigrations book

Lưu trong thư mục migrations

Check sql được tạo chính xác chưa python manage.py sqlmigrate book 0001

Đẩy model vào DB

Mỗi class tương ứng là một table, mỗi object là một record

Cái này gọi là ORM (Object-relational mapping)

python manage.py migrate

Tạo user

python manage.py createsuperuser dtlong dtlong

http://localhost:8000/admin/

loop all in view

{% for cat in categorys %}
    {{ cat.name }}
{% endfor %}

in view

def index(request):
    #category_objs = Type.objects.filter(active__exact=True)
    categorys = Category.objects.all()
    return render(request, "cats.html", {'categorys': categorys})

Deploy to host

/opt/lampp/htdocs/rdesk/data/User/admin/home/python/django/diango_v1/project/diango_v1/app1/app1/

• Make python manage.py migrate
• python manage.py runserver 107.173.145.184:9090

http://rose.dothanhlong.org:9090/

Rest API

Install

djangorestframework

Preferece

https://medium.com/swlh/searching-in-django-rest-framework-45aad62e7782

https://medium.com/the-andela-way/creating-a-django-api-using-django-rest-framework-apiview-b365dca53c1d