Book site

##Model
class Book(models.Model):
    """
    Model for Books stored
    variables:
        id - pk autogenerated
        Author - Writer of said book
        isbn - unique identifier for each book.
        Title - {str} Name of book
        price - {float} - book price
        Available- {Boolean} If book is up for request
    """
    title = models.CharField(max_length=300, blank=False, null=False)
    author = models.CharField(max_length=200)
    isbn = models.CharField(max_length=200, blank=False, null=False)
    price = models.FloatField()
    available = models.BooleanField(default=True)
    published_by = models.ForeignKey(Publisher, blank=True, null=True, \
        on_delete=models.CASCADE)
    synopsis = models.TextField()

    def __str__(self):
        author = 'Author needs updating'
        if self.author:
            return '{} - {}'.format(self.title, self.author)
        else:
            return '{} - {}'.format(self.title, author)

##View
def book_detail(request, id):
    """book detailed views"""
    book = Book.objects.get(id=id)

    context = {
        'title': book.title,
        'author': book.author,
        'isbn': book.isbn,
        'price': book.price,
        'available': book.available,
        'synopsis': book.synopsis
    }

    return render(request, 'library/book_detail.html', context=context)


##template Books list
{% extends 'base.html' %}

{% block content %}
    <div class="list-group">

    {% for book in books %}
        <a href="{% url 'book-details' %}" class="list-group-item list-group-item-action
             flex-column align-items-start active">

            <div class="d-flex w-100 justify-content-between">
             <h5 class="mb-1">{{ book.title | title}}</h5>
            <small> {{ book.author }} </small>
             </div>
            <p class="mb-1">
            {{ book.synopsis | truncatewords:"60"}}
            </small>
        </a>

    {% endfor %}

{% endblock content %}

##Template book detail
{% extends 'base.html' %}

{% block content %}
    <div>
        <h2>{{title}} </h2> <br>
        <p> Author: {{author}}</p><br>
        <p>price: {{price}}</p>  <br>
        <p>available: {{ available }}</p>

    </div>
{% endblock content %}

##Urls

#Urls for the library app

from django.urls import path

from .views import books, book_detail, BookDetailedView

urlpatterns = [
    path('books/', books, name='all_books'),
    path('book/<int:id>/details/', book_detail, name='book-details'),

]