def create_book_penalty(self, books):
full_books = []
for book in books:
loan = Loan.objects.filter(book__id=book.id).filter(
date_returned=None).first()
if loan is None:
serializer = BookSerializer(book)
body = {
'id': serializer.data['id'],
'title': serializer.data['title'],
'publishing_company':
serializer.data['publishing_company'],
'edition': serializer.data['edition'],
'year_publication': serializer.data['year_publication'],
'status': 'available'
}
full_books.append(body)
else:
serializer = BookSerializer(book)
body = {
'id': serializer.data['id'],
'title': serializer.data['title'],
'publishing_company':
serializer.data['publishing_company'],
'edition': serializer.data['edition'],
'year_publication': serializer.data['year_publication'],
'status': 'borrowed'
}
full_books.append(body)
return full_books
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context["fixed_url"] = self.build_url_query_string(["page"])
context[self.context_object_name] = BookSerializer(
context[self.context_object_name],
many=True,
context={
"request": self.request,
"quality": "thumbicon"
},
).data
context["hotbooks"] = BookSerializer(
Book.objects.filter(on_shelf=True).order_by("-click_num")[:10],
many=True,
context={
"request": self.request,
"quality": "thumbicon"
},
).data
if not cache.get("book_labels"):
cache.set(
"book_labels",
set(Book.objects.filter().values_list("markup", flat=True)),
60 * 60 * 24 * 1,
)
context["labels"] = cache.get("book_labels")
return context
def post(self, request):
serializer = BookSerializer(data=request.data)
if serializer.is_valid():
serializer.save()
return Response(serializer.data, status=status.HTTP_201_CREATED)
return Response({'error': serializer.errors},
status=status.HTTP_500_INTERNAL_SERVER_ERROR)
def test_filter_book_published_date(self):
"""Test filtering books by published date"""
book1 = self.book1
book2 = self.book2
response = self.client.get(BOOKS_URL, {'published_date': '2004'})
serializer1 = BookSerializer(book1)
serializer2 = BookSerializer(book2)
self.assertIn(serializer1.data, response.data)
self.assertNotIn(serializer2.data, response.data)
def test_filter_book_by_author(self):
"""Test filtering books by authors"""
book1 = self.book1
book2 = self.book2
response = self.client.get(BOOKS_URL, {'author': 'J. R. R. Tolkien'})
serializer1 = BookSerializer(book1)
serializer2 = BookSerializer(book2)
self.assertIn(serializer1.data, response.data)
self.assertNotIn(serializer2.data, response.data)
def lend_retrieve(request, pk):
try:
book = Book.objects.get(pk=pk)
except Book.DoesNotExist:
return Response(status=status.HTTP_404_NOT_FOUND)
serializer = BookSerializer(book, data=request.data, partial=True)
if serializer.is_valid():
serializer.save()
return Response(serializer.data)
else:
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
class BookshelfItemSerializer(VersionFieldMixin,
serializers.HyperlinkedModelSerializer):
"""Performs Bookshelf items (de)serialization"""
position = FractionField(required=False)
version = IntegerField(required=False)
bookshelf_version = IntegerField(required=False)
book_entity = BookSerializer(read_only=True, source='book')
def create(self, validated_data):
"""DTO position to raw models's position"""
position: Optional[Fraction] = validated_data.pop('position', None)
if position:
validated_data['pos_numerator'] = position.numerator
validated_data['pos_denominator'] = position.denominator
instance = super().create(validated_data)
instance.bookshelf.save() # Bump bookshelf version
setattr(instance, 'bookshelf_version', instance.bookshelf.version)
return instance
@atomic
def update(self, instance, validated_data):
"""Touch bookshelf's optimistic lock
to insure that clients data is up to date"""
instance.bookshelf.version = validated_data['bookshelf_version']
instance.bookshelf.save() # Increase version
return super(BookshelfItemSerializer,
self).update(instance, validated_data)
class Meta:
model = BookshelfItem
version_fields = ('version', 'bookshelf_version')
fields = ('pk', 'url', 'bookshelf', 'book', 'book_entity', 'position',
'version', 'bookshelf_version')
read_only_fields = ('pk', )
def search_all(request):
data = request.data
search = data.get("search", None)
atlases = Atlas.objects.all()
books = Book.objects.all()
infos = Infographic.objects.all()
ebooks = EBook.objects.all()
if search:
atlases = atlases.filter(name__icontains=search)[:3]
books = books.filter(title__icontains=search)[:3]
infos = infos.filter(name__icontains=search)[:3]
ebooks = ebooks.filter(title__icontains=search)[:3]
else:
atlases = atlases[:3]
books = books[:3]
infos = infos[:3]
ebooks = ebooks[:3]
data = {
'atlas': AtlasSerializer(atlases, many=True).data,
'book': BookSerializer(books, many=True).data,
'info': InfoSerializer(infos, many=True).data,
'ebook': EBookSearchSerializer(ebooks, many=True).data,
}
return JsonResponse(data=data)
class LoanSerializer(serializers.ModelSerializer):
book = BookSerializer(read_only=True)
class Meta:
model = Loan
fields = [
'id', 'book', 'user', 'loan_date', 'delivery_date', 'date_returned'
]
def test_retrieve_books(self):
"""Test retrieving a list of books"""
response = self.client.get(BOOKS_URL)
books = Book.objects.all().order_by('-title')
serializer = BookSerializer(books, many=True)
self.assertEqual(response.status_code, status.HTTP_200_OK)
self.assertEqual(response.data, serializer.data)
def test_retrieve_one_book(self):
res = self.client.get(detail_url(self.book1.id))
serializer = BookSerializer(self.book1, many=False)
self.assertEqual(res.status_code, status.HTTP_200_OK)
self.assertEqual(res.data, serializer.data)
class ReservationSerializer(serializers.ModelSerializer):
book = BookSerializer(read_only=True)
class Meta:
model = Reservation
fields = [
'id', 'user', 'book', 'date_reservation', 'date_reservation_final'
]
def get(self, request):
# 1、查询图书表获取取所有图书信息
books = BookInfo.objects.all()
# 2、返回图书信息
# 2-1、初始化序列化器生成序列化器对象,将需要返回的数据对象传递进去,如果是查询集数据，包含多个数据对象，需要使用many=True
ser = BookSerializer(books, many=True)
# 2-2 data方法获取序列化后的结果
return Response({'books': ser.data})
def test_get_all_books(self):
response = client.get(reverse('get_books'))
books = Book.objects.all()
serializer = BookSerializer(books, many=True)
self.assertEqual(response.data, serializer.data)
self.assertEqual(response.status_code, status.HTTP_200_OK)
def book_detail_by_language(request, lang):
"""
Retrieve, update or delete a book.
"""
print "hey"
try:
# Filters books
book = Book.objects.filter(language=lang)
except Book.DoesNotExist:
return HttpResponse(status=404)
if request.method == 'GET':
serializer = BookSerializer(book, many=True)
return JsonResponse(serializer.data, safe=False)
elif request.method == 'PUT':
data = JSONParser().parse(request)
serializer = BookSerializer(book, data=data)
if serializer.is_valid():
serializer.save()
return JsonResponse(serializer.data)
return JsonResponse(serializer.errors, status=400)
elif request.method == 'DELETE':
book.delete()
return HttpResponse(status=204)
def test_retrieve_all_books(self):
res = self.client.get(BOOK_URL)
books = Book.objects.all()
serializer = BookSerializer(books, many=True)
self.assertEqual(res.status_code, status.HTTP_200_OK)
self.assertEqual(res.data, serializer.data)
def get(self, request, pk):
# 1、根据pk查询图书
try:
book = BookInfo.objects.get(id=pk)
except:
return Response({"error": "图书不存在"})
# 2、返回图书信息
book = BookSerializer(book)
return Response(book.data)
def put(self, request):
data = request.json_data
try:
book = Book.objects.get(id=data["id"])
book.name = data["name"]
book.save()
return self.response(BookSerializer(book))
except Book.DoesNotExist:
raise APIError(code=404, err="book not exist")
def test_retrieve_books_by_title(self):
res = self.client.get(title_url(self.book1.title))
serializer = BookSerializer(self.book1, many=False)
expected = [collections.OrderedDict(serializer.data)]
self.assertEqual(res.status_code, status.HTTP_200_OK)
self.assertEqual(res.data, expected)
def test_basic_view_get(self):
response = self.client.get(f'/api/book/books/', {'title': 'some_book'},
follow=True)
serializer = BookSerializer(self.book, many=False)
expected = [collections.OrderedDict(serializer.data)]
self.assertEqual(response.status_code, 200)
self.assertEqual(len(response.data), 1)
self.assertEqual(response.data, expected)
def post(self, request):
isbn = request.data.get("isbn")
rate = int(request.data.get("rate"))
rating, created = UserRatings.objects.update_or_create(
book_id=isbn,
user_id=request.user.id,
defaults={"rate": rate},
)
serialized_book = BookSerializer(rating.book).data
return Response(serialized_book)
def get(self, request, pk):
# 1、根据pk查询图书
try:
book = BookInfo.objects.get(id=pk)
except:
return JsonResponse({"error": "图书不存在"})
# 2、返回图书信息
ser = BookSerializer(book)
# 2-2 data方法获取序列化后的结果
return Response({'books': ser.data})
def test_retrieving_books(self):
"""Test that books list returned correctly"""
Book.objects.create(title='Test Title', author='Test Author', publish_year=1990)
Book.objects.create(title='example', author='example', publish_year=19)
books = Book.objects.all().order_by('-title')
res = self.client.get(BOOK_URL)
serializer = BookSerializer(books, many=True)
self.assertEqual(res.status_code, status.HTTP_200_OK)
self.assertEqual(res.data, serializer.data)
def category_books(request, category_id):
try:
c = BooksCategory.objects.get(id=category_id)
serializer = BookSerializer(
Book.objects.filter(category=c),
many=True
)
return Response(serializer.data)
except BooksCategory.DoesNotExist as e:
return Response({'error': str(e)})
except Book.DoesNotExist as e:
return Response({'error': str(e)})
def create_book(request):
data = JSONParser().parse(request)
# convert keys from camelCase to snake_case
data = converts_keys(data, case='snake')
serializer = BookSerializer(data=data)
if serializer.is_valid():
category, publisher, author = None, None, None
category_id = data.get("category_id", None)
publisher_id = data.get("publisher_id", None)
author_id = data.get("author_id", None)
if category_id:
category = Category.objects.get(pk=category_id)
if publisher_id:
publisher = Publisher.objects.get(pk=publisher_id)
if author_id:
author = Author.objects.get(pk=author_id)
serializer.save(
category=category,
publisher=publisher,
author=author,
)
return Response(serializer.data, status=status.HTTP_201_CREATED)
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
def test_book_detail_view(self):
"""Test viewing a book detail"""
book = Book.objects.create(
title="The Hobbit, Or, There and Back Again",
authors=["John Ronald Reuel Tolkien"],
published_date="1982",
categories=["FICTION"],
average_rating=4,
ratings_count=2649,
)
url = detail_url(book.id)
response = self.client.get(url)
serializer = BookSerializer(book)
self.assertEqual(response.data, serializer.data)
def book_list(request):
"""
List all books, or create a new book.
"""
if request.method == 'GET':
books = Book.objects.all()
serializer = BookSerializer(books, many=True)
return JsonResponse(serializer.data, safe=False)
elif request.method == 'POST':
data = JSONParser().parse(request)
serializer = BookSerializer(data=data)
if serializer.is_valid():
serializer.save()
return JsonResponse(serializer.data, status=201)
return JsonResponse(serializer.errors, status=400)
def like_book(self, request, member_id, book_id):
try:
book = Book.objects.get(id=book_id)
member = Member.objects.get(id=member_id)
if book in member.books_liked.all():
member.books_liked.remove(book)
else:
member.books_liked.add(book)
return Response(BookSerializer(book).data,
status=status.HTTP_200_OK)
except Exception as ex:
pass
return Response(status=status.HTTP_400_BAD_REQUEST)
def create(self, request, *args, **kwargs):
try:
serializer = BookSerializer(data=request.data)
if serializer.is_valid():
serializer.validated_data['owner'] = Member.objects.get(
id=request.data['owner']['id'])
book = serializer.save()
# book.save()
return Response(BookSerializer(book).data,
status=status.HTTP_201_CREATED)
except Exception as ex:
pass
return Response(status=status.HTTP_400_BAD_REQUEST)
def post(self, request):
# 1、获取前端数据
data = request.data
# 2、验证数据 初始化序列化器对象，将前端需要验证的数据传递给data参数
ser = BookSerializer(data=data)
# 2-2 执行验证方法
ser.is_valid()
# 2-3 获取验证后的状态信息
if ser.errors:
return JsonResponse({'errors': ser.errors})
# 3、保存数据
# 调用序列器中的create方法完成保存
ser.save()
# 4、返回结果
return Response(ser.data)
