danilovmy

from django.db import models
from django.utils.translation import gettext_lazy as _

class Product(models.Model):
  title = models.CharField(verbose_name=_('Title of product'), max_length=255)
  price = models.DecimalField(verbose_name=_('Price of product'), max_digits=6, decimal_places=2)

class Image(models.Model):
  src = models.ImageField(verbose_name=_('Imagefile'))
  product = models.ForeignKey(Product, verbose_name=_('Link to product'), on_delete=models.CASCADE)

danilovmy

from django.contrib import admin
from .models import Image, Product

@admin.register(Product)
class ProductModelAdmin(admin.ModelAdmin):
  fields = ('title', 'price')

@admin.register(Image)
class ImageModelAdmin(admin.ModelAdmin):
  fields = ('src', 'product')

danilovmy

    from django.contrib import admin
    from django.contrib.admin.options import TabularInline
    from .models import Image, Product

    class ImageAdminInline(TabularInline):
        extra = 1
        model = Image

    @admin.register(Product)
    class ProductModelAdmin(admin.ModelAdmin):

danilovmy

from django.contrib import admin
from django.contrib.admin.options import TabularInline
from django.template.loader import get_template
from .models import Image, Product

class ImageAdminInline(TabularInline):
 extra = 1
 model = Image

@admin.register(Product)

danilovmy

@admin.register(Product)
class ProductModelAdmin(admin.ModelAdmin):
  inlines = ImageAdminInline,
  fields = 'title','image_inline', 'price'
  readonly_fields= 'image_inline',  # method as readonly field

danilovmy

    @admin.register(Product)
    class ProductModelAdmin(admin.ModelAdmin):
        inlines = (ImageAdminInline,)
        fields = ('title', 'image_inline', 'price')
        readonly_fields= ('image_inline',)  # we set the method as readonly field

        def image_inline(self, obj=None, *args, **kwargs):
            context = obj.response['context_data']
            inline = context['inline_admin_formset'] = context['inline_admin_formsets'].pop(0)
            return get_template(inline.opts.template).render(context, obj.request)

danilovmy

@admin.register(Product)
class ProductModelAdmin(admin.ModelAdmin):
    fields = ('title', 'image_inline', 'price')
    readonly_fields= ('image_inline',)  # we set the method as readonly field

    def image_inline(self, obj=None, *args, **kwargs):
        if obj.pk == 2:
            self.hello = 'this is the second obj'
        else:
            self.hello = 'hello this is the first obj'

danilovmy

    from datetime import datetime

    class TimerMiddleware:

        def __init__(self, get_response):
            self.get_response = get_response

        def __call__(self, request):
            start_time = datetime.now()
            response = self.get_response(request)

danilovmy

def get_urls(self):  # line number 245
  ...
  # many spagetty code
  ...
  # line number 281
  for model, model_admin in self._registry.items():
    urlpatterns += [path('%s/%s/' % (model._meta.app_label, model._meta.model_name), include(model_admin.urls))]
    
# please see all code on https://github.com/django/django/blob/main/django/contrib/admin/sites.py

danilovmy

    def get_urls(self):  # row 617
        from django.urls import path

        def wrap(view):
            def wrapper(*args, **kwargs):
                return self.admin_site.admin_view(view)(*args, **kwargs)
            wrapper.model_admin = self
            return update_wrapper(wrapper, view)

        info = self.model._meta.app_label, self.model._meta.model_name