https://github.com/queeniecplusplus/backend_script3_blogapp_models

Django migrates with SQLite3 using shell and admin UI platform
https://github.com/queeniecplusplus/backend_script3_blogapp_models

django python shell sqlite3

Last synced: 3 months ago
JSON representation

Django migrates with SQLite3 using shell and admin UI platform

• Host: GitHub
• URL: https://github.com/queeniecplusplus/backend_script3_blogapp_models
• Owner: QueenieCplusplus
• Created: 2021-02-19T13:57:39.000Z (over 5 years ago)
• Default Branch: main
• Last Pushed: 2021-02-19T14:48:04.000Z (over 5 years ago)
• Last Synced: 2025-01-06T04:26:16.404Z (over 1 year ago)
• Topics: django, python, shell, sqlite3
• Homepage: https://github.com/QueenieCplusplus/QuickGoThru/blob/master/README.md#backend-溫故-python--php7--nodejs----計畫同步
• Size: 2.51 MB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

          
# Backend_Script3_Blogapp_Models

Django migrates with SQLite3 using shell and admin UI platform

![](https://raw.githubusercontent.com/QueenieCplusplus/Backend_Script3_-logapp_Models/main/18%20post2.png)

prepare virtual env =>

    ~$ which python3 

    show >> path_to_be_copied

    ~$ virtualenv -p path_to_be_copied vir_name

    ~$ source vir_name/bin/activate

    

    // to leave the virtualenv

    (vir_name) ~$ deactivate 

    

    (vir_name) ~$ pip list

    

    (vir_name) ~$ pip3 install django

    

    (vir_name) ~$ mkdir proj_name

    

    

    (vir_name) ~$cd proj_name

    

    (vir_name) proj_name$ django-admin startproject site_name_top_level

    

    (vir_name) proj_name$ cd site_name_top_level

    

    (vir_name) site_name$ ls

    

                   site_name_sub_level/settings.py + urls.py

                   

                   manage.py

                   

                   (sqlite3 waits to be created)

                   

                   (blog app waits to be created)/models.py + views.py + admin.py + migration + apps.py

top level site cmd => (all manage.py cmd shall run under the top level site dir instead of sub level)

    python manage.py runserver

    python manage.py makemigrations

    python manage.py migrate

    

 

 create a blog =>

 

 

    python manage.py startapp kblog

    

    

 create super user =>

 

 

    python3 manage.py createsuperuser

    

    Username (leave blank to use 'katesandroid'): xxxxx

    Email address: xxx@gmail.com

    Password: 

    Password (again): 

    Superuser created successfully.

    (k0219) KatesAndroiddeMacBook-Pro:site0219 katesandroid$ python manage.py runserver

    Watching for file changes with StatReloader

    Performing system checks...

    

    

 db operations =>

 

    python manage.py shell

    

    

    

    >>> from kblog.models import Post

    >>> Post.objects.all()

    >>> 

    >>> 

    

    

    

    >>> Post.objects.create(author=user, title='Sample title', text='Test')

    >>> 

    Traceback (most recent call last):

      File "", line 1, in 

    NameError: name 'user' is not defined

    >>> Post.objects.create(author='kate chen', title='Sample title', text='Test')

    ValueError: Cannot assign "'kate chen'": "Post.author" must be a "User" instance.

    

    

    >>> from django.contrib.auth.models import User

    >>> User.objects.all()

    

    

    

    >>> user = User.objects.get(username='Poupou Chen')

    Traceback (most recent call last):

      File "", line 1, in 

      File "/Users/katesandroid/k0219/lib/python3.8/site-packages/django/db/models/manager.py", line 85, in manager_method

        return getattr(self.get_queryset(), name)(*args, **kwargs)

      File "/Users/katesandroid/k0219/lib/python3.8/site-packages/django/db/models/query.py", line 429, in get

        raise self.model.DoesNotExist(

    django.contrib.auth.models.User.DoesNotExist: User matching query does not exist.

    

    

    >>> from django.contrib.auth.models import User

    >>> User.objects.all()

    

    

    

    >>> from django.contrib.auth.models import User

    >>> user = User.objects.create_user('Poupou', 'poupou@pattyappier.com', '0123456789')

    >>> user.save()

    >>> 

    >>> from django.contrib.auth.models import User

    >>> User.objects.all()

    ]>

    

    

    >>> user = User.objects.get(username='Poupou')

    >>> Post.objects.create(author = user, title = 'Cats Lovely Home', text = 'Test')

    

    

    

    >>> Post.objects.all()

    ]>

    

    

    >>> post = Post.objects.get(id=1)

    >>> post.publish()

    >>> 

    >>> Post.objects.filter(published_date__isnull=False)

    ]>

    >>> exit()

deprecated cmd => https://stackoverflow.com/questions/17392015/error-while-creating-a-model-in-django

create superuser => https://developer.mozilla.org/zh-TW/docs/Learn/Server-side/Django/Admin_site

blog app  & models init => https://carolhsu.gitbooks.io/django-girls-tutorial-traditional-chiness/content/django_start_project/README.html

models tip => https://www.itread01.com/content/1545016715.html

create user => https://docs.djangoproject.com/en/3.1/topics/auth/default/