Django Admin

# The admin gives you CRUD screens
# for your models with zero UI code
print('Django admin manages data out of the box')

# mysite/urls.py
from django.contrib import admin
from django.urls import path

urlpatterns = [
    path('admin/', admin.site.urls),
]
print('admin/ is mapped to the admin site')

# python manage.py createsuperuser
# Username: admin
# Email: admin@example.com
# Password: ********
print('createsuperuser makes an admin login')

# python manage.py runserver
# Open http://127.0.0.1:8000/admin/
print('Visit /admin/ and log in')

# blog/admin.py
from django.contrib import admin
from .models import Post

admin.site.register(Post)
print('Post now appears in the admin')

# In the admin you can:
# - view a list of all Posts
# - add a new Post
# - edit or delete existing ones
print('Full CRUD with no extra code')

from django.contrib import admin
from .models import Post

class PostAdmin(admin.ModelAdmin):
    list_display = ('title', 'created', 'published')

admin.site.register(Post, PostAdmin)
print('list_display picks the columns')

from django.contrib import admin
from .models import Post

class PostAdmin(admin.ModelAdmin):
    search_fields = ('title',)
    list_filter = ('published',)

admin.site.register(Post, PostAdmin)
print('Search box and sidebar filters added')

from django.contrib import admin
from .models import Post

@admin.register(Post)
class PostAdmin(admin.ModelAdmin):
    list_display = ('title',)
print('@admin.register is the decorator form')

from django.db import models

class Post(models.Model):
    title = models.CharField(max_length=200)
    def __str__(self):
        return self.title
print('__str__ gives a readable admin label')

# Staff users (is_staff=True) can access the admin
# Permissions control which models they can edit
print('Permissions limit admin access')