$ pip install Django=4.1.1
$ django-admin startproject pystock
# git pull = git fetch + git merge
$ fatal: refusing to merge unrelated histories
$ git pull origin main --allow-unrelated-histories
$ cd pystock
$ python manage.py runserve
$ python manage.py runserve 8080
$ python manage.py runserve 0:8080
$ django-admin startapp polls
$ django-admin startapp stock
# settings.py
$ ...
$ python manage.py migrate
$ python manage.py makemigrations polls
Migrations for 'polls':
polls\migrations\0001_initial.py
- Create model Question
- Create model Choice
$ python manage.py sqlmigrate polls 0001
$ python manage.py migrate
$ python manage.py migrate polls
# python requirements.txt
$ pip freeze > requirements.txt
$ pip install -r requirements.txt
# input your git access token and save cache
$ git config --global credential.helper cache
$ git push
Username for 'https://github.com': zoonny
Password for 'https://[email protected]': [input your access code]
Everything up-to-date
# remove cache
$ git config --global --unset credential.helper- Django Data Handling
$ python manage.py shellfrom polls.models import Choice, Question
Question.objects.all()
from django.utils import timezone
q = Question(question_text="What's news?", pub_date=timezone.now())
q.save()
q.id
q.question_text
q.pub_date
q.question_text = 'Hi there?'
q.save()
Question.objects.all()from polls.models import Choice, Question
Question.objects.all()
Question.objects.filter(id=1)
Question.objects.filter(question_text__startswith='What')
from django.utils import timezone
current_year = timezone.now().year
Question.objects.get(pub_date__year=current_year)
# returned more than one Question -- it returned 3!
# should only one element return
Question.objects.get(id=2)
q = Question.objects.get(pk=1)
q.was_published_recently()
# display child entity (foregin key) - empty set
q.choice_set.all()
# <QuerySet []>
q.choice_set.create(choice_text='Not much', votes=0)
q.choice_set.create(choice_text='The sky', votes=0)
q.choice_set.create(choice_text='HaHa', votes=0)
c = q.choice_set.create(choice_text='hoho', votes=0)
# display super entity
c.question
q.choice_set.all()
q.choice_set.count()
Choice.objects.filter(question__pub_date__year=current_year)
c = q.choice_set.filter(choice_text__startswith='ho')
c.delete()
q.choice_set.all()-
수정파일
- pystock/settings.py
- pystock/urls.py
-
python formatter
$ pip install black
# setting balck on formatting provider in vscode
# 관리자 사용자 생성
$ python3 manage.py createsuperuser
Username: admin
Email address: [email protected]
Password: ******
$ python manage.py runserver- manage poll app in admin site
- code to polls/admin.py
from django.contrib import admin
from .models import Question, Choice
admin.site.register(Question)
admin.site.register(Choice)$ docker ps -a
Cannot connect to the Docker daemon at unix:///var/run/docker.sock...
# excute to docker gui
$ docker-compose --version$ Get-Content README.md -Wait -Tail 10
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent