Рейтинг книг

bookify/books/templates/books/base.html

@@ -11,8 +11,9 @@
     <header>
         <h1><a href="{% url 'books:book_list' %}">Bookify</a></h1>
         <nav>
+            <a href="{% url 'books:books_rating' %}">Рейтинг книг</a>
             <a href="{% url 'books:book_list' %}">Список книг</a>
-            <a href="{% url 'books:genre_list' %}">Список жанров</a>            
+            <a href="{% url 'books:genre_list' %}">Список жанров</a>
             {% if user.is_authenticated %}
                 <a href="{% url 'books:add_book' %}">Добавить книгу</a>
                 <a href="{% url 'logout' %}">Выйти</a>

bookify/books/templates/books/books_rating.html

@@ -0,0 +1,9 @@
+{% extends 'books/base.html' %}
+{% block content %}
+<h2>Общий рейтинг книг</h2>
+<div class="book-list">
+    {% for book in books %}
+        {% include 'books/_book_item.html' %}
+    {% endfor %}
+</div>
+{% endblock %}

bookify/books/urls.py

@@ -25,4 +25,5 @@ urlpatterns = [
     path("succesful-logout/", views.logout, name="logout"),
     path("book/<int:pk>/edit/", views.edit_book, name="edit_book"),
     path("review/<int:pk>/edit/", views.edit_review, name="edit_review"),
+    path("rating/", views.books_rating, name="books_rating"),
 ]

bookify/books/views.py

@@ -2,6 +2,7 @@ from django.contrib.auth import login
 from django.contrib.auth.decorators import login_required
 from django.contrib.auth.forms import AuthenticationForm
 from django.core.exceptions import PermissionDenied
+from django.db.models import Avg
 from django.shortcuts import get_object_or_404, redirect, render
 
 from .forms import BookForm, CustomUserCreationForm, GenreForm, ReviewForm
@@ -25,6 +26,17 @@ def logout(requst):
     return render(requst, "accounts/logout.html")
 
 
+def books_rating(request):
+    """
+    Страница со всеми книгами, отсортированными по убыванию среднего рейтинга.
+    """
+    # Переименуем аннотацию в avg_rating
+    books = Book.objects.annotate(avg_rating=Avg("reviews__rating")).order_by(
+        "-avg_rating"
+    )
+    return render(request, "books/books_rating.html", {"books": books})
+
+
 def book_list(request):
     """Главная страница со списком всех книг."""
     books = Book.objects.all()