'Solution' #861
'Solution' #861
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Andrey-Dementyev
commented
Nov 19, 2024
Andrey-Dementyev
commented
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Great job on your project! 🎉 Your code is well-structured and implements many best practices, especially in terms of security and performance optimizations. While there are a few minor areas for improvement, such as using CSS for layout instead of <br> tags and ensuring all context variables are correctly set, these do not impact the core functionality of your application. Keep up the good work, and consider the feedback for future enhancements! 😊
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| from django.shortcuts import render | ||
| from django.views import generic | ||
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| from .models import Driver, Car, Manufacturer | ||
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| @login_required |
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The @login_required decorator is correctly used here to ensure that only authenticated users can access the index view. This is a good practice for securing views that should not be publicly accessible.
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| context = { | ||
| "num_drivers": num_drivers, | ||
| "num_cars": num_cars, | ||
| "num_manufacturers": num_manufacturers, | ||
| "num_visits": num_visits + 1, |
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The num_visits is incremented twice: once when retrieving from the session and once when setting it back. This is correct, but you might want to consider using a single increment operation to avoid potential confusion.
| } | ||
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| return render(request, "taxi/index.html", context=context) | ||
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| class ManufacturerListView(generic.ListView): | ||
| class ManufacturerListView(LoginRequiredMixin, generic.ListView): |
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The ManufacturerListView uses LoginRequiredMixin, which is appropriate for class-based views to ensure that only logged-in users can access this view.
| model = Manufacturer | ||
| context_object_name = "manufacturer_list" | ||
| template_name = "taxi/manufacturer_list.html" | ||
| paginate_by = 5 | ||
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| class CarListView(generic.ListView): | ||
| class CarListView(LoginRequiredMixin, generic.ListView): | ||
| model = Car | ||
| paginate_by = 5 | ||
| queryset = Car.objects.select_related("manufacturer") |
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In CarListView, the use of select_related is efficient for reducing the number of queries when accessing related manufacturer objects. This is a good practice for optimizing database access.
| model = Driver | ||
| paginate_by = 5 | ||
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| class DriverDetailView(generic.DetailView): | ||
| class DriverDetailView(LoginRequiredMixin, generic.DetailView): | ||
| model = Driver | ||
| queryset = Driver.objects.prefetch_related("cars__manufacturer") |
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In DriverDetailView, the use of prefetch_related is appropriate for optimizing queries when you expect to access related cars and their manufacturer. This helps in reducing the number of database queries.
| {% else %} | ||
| <li><a href="{% url "login" %}">Login</a></li> | ||
| {% endif %} | ||
| <br> |
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Consider using CSS for spacing instead of <br> tags for better control over the layout and to maintain a clean HTML structure.
| {% block content %} | ||
| <h2>Login</h2> | ||
| {% if form.errors %} | ||
| <p style="color: red">Invalid credentials</p> |
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Displaying a generic error message like 'Invalid credentials' is a good practice as it doesn't reveal whether the username or password was incorrect, enhancing security.
| {% csrf_token %} | ||
| {{ form.as_p }} | ||
| <input type="submit" value="Submit"> | ||
| <input type="hidden" name="next" value="{{ next }}"> |
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The use of the next hidden input field is correct for redirecting users to their intended destination after a successful login. Ensure that the next context variable is properly set in the view handling this form.
| @@ -6,8 +6,13 @@ <h1>Driver list</h1> | |||
| <ul> | |||
| {% for driver in driver_list%} | |||
| <li> | |||
| <a href="{% url "taxi:driver-detail" pk=driver.id %}">{{ driver.username }}</a> | |||
| ({{ driver.first_name }} {{ driver.last_name }}) | |||
| {% if user.id == driver.id %} | |||
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The condition user.id == driver.id is used to check if the current user is the same as the driver in the list. Ensure that the user object is available in the template context and that both user.id and driver.id are correctly set.
| @@ -10,4 +10,5 @@ <h2>Dynamic content</h2> | |||
| <li><strong>Drivers:</strong> {{ num_drivers }}</li> | |||
| <li><strong>Manufacturers:</strong> {{ num_manufacturers }}</li> | |||
| </ul> | |||
| <p>You have visited this page {{ num_visits }} time{{ num_visits|pluralize }}.</p> | |||
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The use of the pluralize filter is correct for handling singular and plural forms of the word 'time'. This improves the readability and correctness of the message displayed to the user.
