> For the complete documentation index, see [llms.txt](https://olee-tech.gitbook.io/django/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://olee-tech.gitbook.io/django/formset/page-1.md). # Page 1 ## {% file src="/files/2F4cJV6B55PQ8FNMCIto" %} ## Create Project ```bash Django-admin startproject myproject ``` ## Create App ```bash python manage.py startapp library ``` ## **Link App With Project** **Add App With Django Project** ```python INSTALLED_APPS = [ 'library', ] ``` **project urls.py** ``` path('students/', include('library.urls')), ``` ### **Urls.py** **library/urls.py** ``` from django.urls import path from .views import author_create, author_list,author_update,author_delete urlpatterns = [ path('author/create/', author_create, name='author_create'), path('author/list/', author_list, name='author_list'), path('author/update//', author_update, name='author_update'), path('author/delete//', author_delete, name='author_delete'), ] ``` ## Models **models.py** ```python from django.db import models class Author(models.Model): name = models.CharField(max_length=100) def __str__(self): return self.name class Book(models.Model): author = models.ForeignKey(Author, on_delete=models.CASCADE) title = models.CharField(max_length=100) category = models.CharField(max_length=100,default='a') def __str__(self): return self.title ``` ## **Forms** **forms.py** ```python from django import forms from django.forms.models import inlineformset_factory from .models import Author, Book class AuthorForm(forms.ModelForm): class Meta: model = Author fields = ['name'] BookFormSet = inlineformset_factory( Author, Book, fields=('title','category',), extra=1, can_delete=False, min_num=1, validate_min=True ) ``` ## Views **views.py** ```python from django.shortcuts import render, redirect,get_object_or_404 from .forms import AuthorForm, BookFormSet from .models import Author,Book def author_create(request): if request.method == 'POST': form = AuthorForm(request.POST) formset = BookFormSet(request.POST) if form.is_valid() and formset.is_valid(): author = form.save() formset.instance = author formset.save() return redirect('author_list') else: form = AuthorForm() formset = BookFormSet() context = { 'form': form, 'formset': formset, } return render(request, 'library/author_create.html', context) def author_list(request): authors = Author.objects.all() context = {'authors': authors} return render(request, 'library/author_list.html', context) def author_update(request, author_id): author = get_object_or_404(Author, id=author_id) if request.method == 'POST': form = AuthorForm(request.POST, instance=author) formset = BookFormSet(request.POST, instance=author) if form.is_valid() and formset.is_valid(): form.save() formset.save() return redirect('author_list') else: form = AuthorForm(instance=author) formset = BookFormSet(instance=author) context = { 'form': form, 'formset': formset, } return render(request, 'library/author_update.html', context) def author_delete(request, author_id): author = get_object_or_404(Author, id=author_id) if request.method == 'POST': author.delete() return redirect('author_list') context = { 'author': author } return render(request, 'library/author_delete.html', context) ``` ## **Templates** **templates/library/author\_create.html** ```html Create Author

Create Author

``` **templates/library/author\_update.html** ```html Update Author

Update Author

``` **templates/library/author\_list.html** ```html Author List

Author List

{% for author in authors %} {% endfor %}

Name	Actions
{{ author.name }}	Edit Delete

Add Author ``` **templates/library/author\_delete.html** ```markup Delete Author

Delete Author

Are you sure you want to delete the author "{{ author.name }}"?

``` ## --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://olee-tech.gitbook.io/django/formset/page-1.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.