CRUD Operations in Django Model

In myapp/models.py, define a simple model:

from django.db import models

class Item(models.Model):
    name = models.CharField(max_length=100)
    description = models.TextField()
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    def __str__(self):
        return self.name

Run the migrations to create the database schema:

python manage.py makemigrations
python manage.py migrate

In myapp/views.py, create views for handling CRUD operations:

from django.shortcuts import render, get_object_or_404, redirect
from .models import Item
from .forms import ItemForm

def item_list(request):
    items = Item.objects.all()
    return render(request, 'myapp/item_list.html', {'items': items})

def item_detail(request, pk):
    item = get_object_or_404(Item, pk=pk)
    return render(request, 'myapp/item_detail.html', {'item': item})

def item_create(request):
    if request.method == "POST":
        form = ItemForm(request.POST)
        if form.is_valid():
            item = form.save()
            return redirect('item_detail', pk=item.pk)
    else:
        form = ItemForm()
    return render(request, 'myapp/item_form.html', {'form': form})

def item_update(request, pk):
    item = get_object_or_404(Item, pk=pk)
    if request.method == "POST":
        form = ItemForm(request.POST, instance=item)
        if form.is_valid():
            item = form.save()
            return redirect('item_detail', pk=item.pk)
    else:
        form = ItemForm(instance=item)
    return render(request, 'myapp/item_form.html', {'form': form})

def item_delete(request, pk):
    item = get_object_or_404(Item, pk=pk)
    if request.method == "POST":
        item.delete()
        return redirect('item_list')
    return render(request, 'myapp/item_confirm_delete.html', {'item': item})

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