Added add book and author and edit book and author html

bookshelf/templates/bookshelf/add-author.html

+{% extends 'base.html' %}
+{% load static %}
+
+    {% block title %} Add New Author {% endblock %}
+
+    {% block content %}
+        <form method="POST">
+            {% csrf_token %}
+            {{ form.as_p }}
+            <button type="submit">Submit</button>
+        </form>
+    {% endblock %}

bookshelf/templates/bookshelf/add-book.html

+{% extends 'base.html' %}
+{% load static %}
+
+    {% block title %} Add New Book {% endblock %}
+
+    {% block content %}
+        <form method="POST">
+            {% csrf_token %}
+            {{ form.as_p }}
+            <button type="submit">Submit</button>
+        </form>
+    {% endblock %}

bookshelf/templates/bookshelf/authors_details.html

@@ -9,6 +9,10 @@
             <li>{{ object.age }}</li>
             <li>{{ object.nationality }}</li>
             <li>{{ object.bio }}</li>
+
+            <form action="./edit">
+              <button type="submit">Edit Author</button>
+            </form>
         </ul>
     </div>
 </section>

bookshelf/templates/bookshelf/book_details.html

@@ -13,6 +13,11 @@
             <li>{{ object.year_published }}</li>
             <li>{{ object.ISBN }}</li>
             <li>{{ object.blurb }}</li>
+
+            <form action="./edit">
+                <button type="submit">Edit Book</button>
+            </form>
+    
         </ul>
         </div>
 </section>

bookshelf/templates/bookshelf/edit-author.html

+{% extends 'base.html' %}
+{% load static %}
+
+    {% block title %} Edit Author {% endblock %}
+
+    {% block content %}
+        <form method="POST">
+            {% csrf_token %}
+            {{ form.as_p }}
+            <button type="submit">Submit</button>
+        </form>
+    {% endblock %}

bookshelf/templates/bookshelf/edit-book.html

+{% extends 'base.html' %}
+{% load static %}
+
+    {% block title %} Edit Book {% endblock %}
+
+    {% block content %}
+        <form method="POST">
+            {% csrf_token %}
+            {{ form.as_p }}
+            <button type="submit">Submit</button>
+        </form>
+    {% endblock %}

bookshelf/urls.py

 from django.urls import path
-from .views import index, BookListView, BookDetailView, AuthorListView, AuthorDetailView
+from .views import index, BookListView, BookDetailView, AuthorListView, AuthorDetailView, AuthorCreateView, AuthorUpdateView, BookUpdateView, BookCreateView
 
 
 urlpatterns = [
@@ -8,5 +8,9 @@ urlpatterns = [
     path('books/<int:pk>/details', BookDetailView.as_view(), name="book_detail"),
     path('authors/', AuthorListView.as_view(), name="author_list"),
     path('authors/<int:pk>/details', AuthorDetailView.as_view(), name="author_detail"),
+    path('authors/add/', AuthorCreateView.as_view(), name="new_author"),
+    path('authors/<int:pk>/edit', AuthorUpdateView.as_view(), name="edit_author"),
+    path('books/add/', BookCreateView.as_view(), name="new_book"),
+    path('books/<int:pk>/edit', BookUpdateView.as_view(), name="edit_book"),
 
 ]

bookshelf/views.py

@@ -5,6 +5,8 @@ from .models import Author, Books
 from django.views.generic.list import ListView
 from django.views.generic.detail import DetailView
 
+from django.views.generic.edit import CreateView, UpdateView
+
 def index(request):
     return render(request, "bookshelf/home.html",)
 
@@ -17,6 +19,17 @@ class AuthorDetailView(DetailView):
     template_name = 'bookshelf/authors_details.html'
     model = Author
 
+class AuthorCreateView(CreateView):
+    template_name = 'bookshelf/add-author.html'
+    model = Author
+    fields = '__all__'
+
+class AuthorUpdateView(UpdateView):
+    template_name = 'bookshelf/edit-author.html'
+    model = Author
+    fields = '__all__'
+
+
 class BookListView(ListView):
     template_name = 'bookshelf/books.html'
     model = Books
@@ -25,4 +38,14 @@ class BookDetailView(DetailView):
     template_name = 'bookshelf/book_details.html'
     model = Books
 
+class BookCreateView(CreateView):
+    template_name = 'bookshelf/add-book.html'
+    model = Books
+    fields = '__all__'
+
+class BookUpdateView(UpdateView):
+    template_name = 'bookshelf/edit-book.html'
+    model = Books
+    fields = '__all__'
+