Solution #728
Solution #728
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Thank you for your hard work on this project! While your code meets many of the task requirements, there are a few critical issues that need to be addressed before we can approve the pull request:
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Functionality Issues:
- The
TicketSerializer'svalidatemethod assumes thatmovie_sessionis a fully populated instance with acinema_hallattribute. Please ensure thatmovie_sessionis fully populated or adjust the logic to handle cases where it might not be. - There is a typo in the
OrderSerializer'screatemethod, wheretickets_dateshould betickets_data. This needs to be corrected to ensure the functionality works as expected.
- The
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Optimization and Security:
- In the
MovieSessionViewSet, usingselect_related()without specifying fields can lead to unnecessary database joins. Consider specifying the fields to optimize the query. - Ensure that filtering by
user=self.request.useris secure and that therequest.useris correctly set, especially if authentication is involved.
- In the
Once these issues are resolved, your code will be in great shape! Keep up the good work, and don't hesitate to reach out if you need any assistance. 😊
✨ Please rate this review in the Platform's notification center. I will be grateful for your feedback! ✨
🔄 Fix the issues, commit the changes, and then re-request my review using the Re-request review button in the Reviewers tab.
cinema/serializers.py
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| class TicketSerializer(serializers.ModelSerializer): | ||
| movie_session = MovieSessionSerializer() |
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The movie_session field in TicketSerializer is using MovieSessionSerializer, which may not provide the full cinema_hall object required in the validate method. Consider using a primary key related field or ensuring the full object is available.
| movie_session = attrs.get("movie_session") | ||
| row = attrs.get("row") | ||
| seat = attrs.get("seat") | ||
| cinema_hall = movie_session.cinema_hall |
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The cinema_hall attribute is accessed directly from movie_session. Ensure that movie_session is a fully populated instance, or adjust the logic to handle cases where it might not be.
cinema/serializers.py
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| def create(self, validated_data): | ||
| with transaction.atomic(): | ||
| tickets_date = validated_data.pop("tickets") |
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There seems to be a typo: tickets_date should likely be tickets_data to match the context of handling ticket information.
cinema/views.py
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| if self.action in "list": | ||
| return ( | ||
| queryset | ||
| .select_related() |
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Using select_related() without specifying fields can lead to unnecessary database joins. Consider specifying the fields to optimize the query.
| pagination_class = OrderSetPagination | ||
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| def get_queryset(self): | ||
| queryset = self.queryset.filter(user=self.request.user) |
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Ensure that filtering by user=self.request.user is secure and that the request.user is correctly set, especially if authentication is involved.
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Great job on addressing the previous issues in your code! 🎉 Your serializers, URL configurations, and viewsets are mostly well-implemented. However, there are a few critical points to keep in mind:
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Functionality: Ensure that the
TicketSerializer'svalidatemethod correctly handles cases wheremovie_sessionmight not be fully populated. Also, make sure the typo in theOrderSerializer'screatemethod is corrected fromtickets_datetotickets_data. -
Optimization: In the
MovieSessionViewSet, specify fields when usingselect_related()to avoid unnecessary database joins. -
Security: Filtering by
user=self.request.userin theOrderViewSetshould be secure, especially if authentication is involved. -
Settings: Remember to keep your
SECRET_KEYsecret, setDEBUGtoFalsein production, and configureALLOWED_HOSTSappropriately.
These improvements are crucial for the functionality, optimization, and security of your application. Keep up the good work, and continue learning from these experiences to enhance your coding skills! 🚀
✨ Please rate this review in the Platform's notification center. I will be grateful for your feedback! ✨
| {"movie_session": "Movie session is required to validate row and seat."} | ||
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| cinema_hall = movie_session.cinema_hall |
There was a problem hiding this comment.
The validate method in TicketSerializer assumes that movie_session is a fully populated instance with a cinema_hall attribute. Ensure that movie_session is fully populated or adjust the logic to handle cases where it might not be.
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| def create(self, validated_data): | ||
| with transaction.atomic(): | ||
| tickets_data = validated_data.pop("tickets") |
There was a problem hiding this comment.
There is a typo in the OrderSerializer's create method. The variable tickets_date should be tickets_data to match the context and ensure the functionality works as expected.
| if self.action in "list": | ||
| return ( | ||
| queryset | ||
| .select_related("movie", "cinema_hall") |
There was a problem hiding this comment.
In the MovieSessionViewSet, using select_related() without specifying fields can lead to unnecessary database joins. Consider specifying the fields to optimize the query.
| pagination_class = OrderSetPagination | ||
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| def get_queryset(self): | ||
| queryset = self.queryset.filter(user=self.request.user) |
There was a problem hiding this comment.
Ensure that filtering by user=self.request.user is secure and that the request.user is correctly set, especially if authentication is involved. This is crucial for maintaining data privacy and security.
cinema/views.py
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| @@ -11,7 +22,7 @@ | |||
| MovieSessionListSerializer, | |||
| MovieDetailSerializer, | |||
| MovieSessionDetailSerializer, | |||
| MovieListSerializer, | |||
| MovieListSerializer, OrderSerializer, OrderListSerializer, | |||
cinema/views.py
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| if date: | ||
| date = parse_date(date) | ||
| if date: |
cinema/views.py
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| if movie: | ||
| queryset = queryset.filter(movie_id=movie) | ||
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| if self.action in "list": |
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you should use in with list, tuple or dict object
cinema/views.py
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| ) | ||
| ) | ||
| ) | ||
| elif self.action in "retrieve": |
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don't use in... use == here
| for ticket_attr_value, ticket_attr_name, cinema_hall_attr_name in [ | ||
| (row, "row", "rows"), | ||
| (seat, "seat", "seats_in_row"), | ||
| ]: | ||
| count_attrs = getattr(cinema_hall, cinema_hall_attr_name) | ||
| if not (1 <= ticket_attr_value <= count_attrs): | ||
| raise serializers.ValidationError( | ||
| { | ||
| ticket_attr_name: f"{ticket_attr_name} " | ||
| f"number must be in available range: " | ||
| f"(1, {cinema_hall_attr_name}): " | ||
| f"(1, {count_attrs})" | ||
| } | ||
| ) |
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hm probably would be better to create a validation method in the model with @staticmethod decorator. And use it here
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