added the feature to update the author and book

sharmchua_reading/bookshelf/templates/bookshelf/author_details.html

@@ -23,6 +23,11 @@
         {% endfor %}
     </h3>
 
+    <a href="./edit">
+        <button type="button"><p>Edit Authors</p></button>
+    </a>
+    <br><br>
+
     {# the links to other html files #}
     <center>
     <div class="btn">

sharmchua_reading/bookshelf/templates/bookshelf/book_details.html

@@ -17,6 +17,11 @@
         ISBN: {{ object.ISBN }} <br>
         Blurb: {{ object.blurb }} <br>
     </h3>
+
+    <a href="./edit">
+        <button type="button"><p>Edit Book</p></button>
+    </a>
+    <br><br>
     
     {# the links to other html files #}
     <center>

sharmchua_reading/bookshelf/templates/bookshelf/edit-author.html

+{% extends 'base.html' %}
+{% load static %}
+
+    {% block title %}Edit Author{% endblock %}
+    {% block content %}
+    <div class="edit-author">
+        <form method="post">
+            {% csrf_token %}
+            {{ form.as_p }}
+
+            <input type="submit" value="Save">
+        </form>
+    </div>
+    {% endblock %}
\ No newline at end of file

sharmchua_reading/bookshelf/templates/bookshelf/edit-book.html

+{% extends 'base.html' %}
+{% load static %}
+
+    {% block title %}Edit Book{% endblock %}
+    {% block content %}
+    <div class="edit_book">
+        <form method="post">
+            {% csrf_token %}
+            {{ form.as_p }}
+
+            <input type="submit" value="Save">
+        </form>
+    </div>
+    {% endblock %}
\ No newline at end of file

sharmchua_reading/bookshelf/urls.py

@@ -5,10 +5,12 @@ urlpatterns = [
     path('home/',index,name='home'),
     path('books/',BooksListView.as_view(),name='books_list'),
     path('books/<int:pk>/details',BooksDetailView.as_view(),name='book_details'),
+    path('books/add',BooksCreateView.as_view(),name='create_book'),
+    path('books/<int:pk>/edit',BooksUpdateView.as_view(),name='update_book'),
     path('authors/',AuthorListView.as_view(),name='author_list'),
     path('authors/<int:pk>/details',AuthorDetailView.as_view(),name='author_details'),
-    path('books/add',BooksCreateView.as_view(),name='create_book'),
     path('authors/add',AuthorCreateView.as_view(),name='new_author'),
+    path('authors/<int:pk>/edit',AuthorUpdateView.as_view(),name='update_author'),
 ]
 
 app_name = 'bookshelf'
\ No newline at end of file

sharmchua_reading/bookshelf/views.py

@@ -2,7 +2,7 @@ from django.shortcuts import render
 from django.http import HttpResponse, request
 from django.views import View 
 from .models import Author, Books
-from django.views.generic.edit import CreateView
+from django.views.generic.edit import CreateView, UpdateView
 from django.views.generic.list import ListView
 from django.views.generic.detail import DetailView
 
@@ -23,6 +23,11 @@ class BooksCreateView(CreateView):
     template_name = 'bookshelf/add-book.html'
     fields = '__all__'
 
+class BooksUpdateView(UpdateView):
+    model = Books
+    template_name = 'bookshelf/edit-book.html'
+    fields = '__all__'
+
 class AuthorListView(ListView):
     model = Author
     template_name='bookshelf/authors.html'
@@ -34,4 +39,9 @@ class AuthorDetailView(DetailView):
 class AuthorCreateView(CreateView):
     model = Author
     template_name = 'bookshelf/add-author.html'
+    fields = '__all__'
+
+class AuthorUpdateView(UpdateView):
+    model = Author
+    template_name = 'bookshelf/edit-author.html'
     fields = '__all__'
\ No newline at end of file