Fix/category url #196
Fix/category url #196
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WalkthroughThe pull request introduces several modifications to the Changes
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🚧 Files skipped from review as they are similar to previous changes (1)
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Actionable comments posted: 0
🧹 Outside diff range and nitpick comments (5)
server/apps/research/admin/category_admin.py (1)
8-11: Consider adding 'slug' to search_fieldsThe slug field has been correctly added to
list_display. Consider also adding it tosearch_fieldsto allow administrators to search by both name and slug.- search_fields = ('name',) + search_fields = ('name', 'slug')server/apps/research/migrations/0015_category_slug.py (1)
16-16: Consider adding db_index for performanceSince the slug field will be used in URL lookups, consider adding
db_index=Truefor better query performance.- field=models.SlugField(blank=True, max_length=255), + field=models.SlugField(blank=True, max_length=255, db_index=True),server/apps/research/models/category.py (2)
14-17: Consider handling name changesThe current implementation only generates a slug if one doesn't exist. Consider regenerating the slug when the name changes to keep them in sync.
def save(self, *args, **kwargs): - if not self.slug: + if not self.slug or (self.pk and self.name != Category.objects.get(pk=self.pk).name): self.slug = self.generate_slug() super().save(*args, **kwargs)
22-39: LGTM! Robust slug generation implementationThe implementation is thread-safe and handles conflicts well. Consider adding a maximum iteration limit to the while loop as a safeguard against edge cases.
def generate_slug(self): if not self.name: raise ValueError("Name is required to generate slug") base_slug = slugify(self.name) slug = base_slug num = 1 + MAX_ATTEMPTS = 1000 # Prevent infinite loops in edge cases with transaction.atomic(): - while ( + while num <= MAX_ATTEMPTS and ( Category.objects.select_for_update() .filter(slug=slug) .exclude(id=self.id) # Exclude current instance when updating .exists() ): slug = f"{base_slug}-{num}" num += 1 + if num > MAX_ATTEMPTS: + raise ValueError(f"Could not generate unique slug after {MAX_ATTEMPTS} attempts") return slugserver/apps/research/views.py (1)
105-111: LGTM! Consider optimizing the database queryThe implementation correctly uses slugs for category lookup. However, we can optimize the database queries by combining the existence check with the main query.
@action(detail=False, methods=['get'], url_path=r'category/(?P<category_slug>[-\w]+)') def retrieve_by_category(self, request, category_slug=None): """Retrieve article list by category.""" try: - instances = Article.objects.filter(categories__slug=category_slug) - if not instances.exists(): + instances = Article.objects.filter(categories__slug=category_slug).select_related('categories') + if not instances: return Response({'error': 'No articles found for this category'}, status=status.HTTP_404_NOT_FOUND)
📜 Review details
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📒 Files selected for processing (6)
server/apps/research/admin/category_admin.py(1 hunks)server/apps/research/migrations/0015_category_slug.py(1 hunks)server/apps/research/migrations/0016_alter_category_slug.py(1 hunks)server/apps/research/models/category.py(1 hunks)server/apps/research/serializers/category_serializer.py(1 hunks)server/apps/research/views.py(1 hunks)
✅ Files skipped from review due to trivial changes (1)
- server/apps/research/migrations/0016_alter_category_slug.py
🔇 Additional comments (4)
server/apps/research/serializers/category_serializer.py (1)
Line range hint 6-10: LGTM! Well-structured serializer changes
The slug field is correctly configured as read-only with appropriate max_length and helpful documentation. The field ordering in Meta is logical.
server/apps/research/migrations/0015_category_slug.py (1)
13-17: Verify data migration needs
While the slug field is correctly added, consider the following:
- Existing categories will have empty slugs. Consider adding a data migration to generate slugs for existing categories.
- Verify that the new URL patterns using slugs don't conflict with existing routes.
✅ Verification successful
Let me gather more information about the URL patterns and Category model definition.
Let me check one more thing to verify the Category model and its relationships.
Let me check the content of both migrations and the Category model definition.
No data migration needed - automatic slug generation is handled
The Category model has built-in slug generation in its save() method, which automatically creates slugs for both new and existing records. Additionally:
- The model's
generate_slug()method handles uniqueness conflicts - URL patterns in
urls.pyare already configured to work with slugs - The two-step migration (0015 and 0016) correctly adds the field and its unique constraint
No additional data migration is needed as empty slugs will be populated automatically when categories are saved.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Check for existing URL patterns that might conflict with category slugs
echo "Checking URL patterns in urls.py files:"
fd -e py -x grep -l "path.*category" {}
# Check if there are existing categories that would need migration
echo "Checking for Category model usage:"
ast-grep --pattern 'class Category(models.Model)'
Length of output: 326
Script:
#!/bin/bash
# Check URL patterns in research urls.py and views.py
echo "Content of research/urls.py:"
cat ./server/apps/research/urls.py
echo -e "\nContent of research/views.py (category-related):"
rg "category" ./server/apps/research/views.py -B2 -A2
echo -e "\nChecking Category model definition:"
rg "class Category" ./server/apps/research/models.py -A5
Length of output: 2479
Script:
#!/bin/bash
# Search for Category model and its relationships
echo "Searching for Category model and related code:"
rg -l "Category" ./server/apps/research/
echo -e "\nChecking models.py content:"
cat ./server/apps/research/models.py
echo -e "\nChecking for existing migrations with Category:"
fd -e py -p ".*_category.*" ./server/apps/research/migrations/
Length of output: 1308
Script:
#!/bin/bash
# Check Category model definition and migrations
echo "Category model definition:"
cat ./server/apps/research/models/category.py
echo -e "\nMigration 0015 content:"
cat ./server/apps/research/migrations/0015_category_slug.py
echo -e "\nMigration 0016 content:"
cat ./server/apps/research/migrations/0016_alter_category_slug.py
Length of output: 2317
server/apps/research/models/category.py (1)
3-4: LGTM! Proper setup for slug handling
The imports and SlugField configuration are well-structured with appropriate constraints.
Also applies to: 9-9
server/apps/research/views.py (1)
105-105: Verify impact on existing URLs
Let's check if there are any existing URLs or references using the old category-based routing.
✅ Verification successful
Category URL implementation is consistent and properly handled
The verification shows that the category-based URL implementation is consistent across the codebase:
- The URL pattern in
urls.pycorrectly maps to the view method usingretrieve_by_category - The view implementation includes proper error handling and logging
- The URL pattern matches the decorator pattern in the review snippet
The changes appear to maintain backward compatibility as both implementations coexist:
- The new decorator pattern:
@action(detail=False, methods=['get'], url_path=r'category/(?P<category_slug>[-\w]+)') - The existing URL pattern:
r'^api/articles/category/(?P<category>[-\w]+)/$'
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for potential references to old category URLs in the codebase
echo "Searching for potential references to old category URLs..."
rg -l "category/\w+" --type html --type js --type python
# Search for potential hardcoded category names in tests
echo "Searching for hardcoded category names in tests..."
rg "category.*=.*['\"][\w\s]+['\"]" --type python
Length of output: 414
Script:
#!/bin/bash
# Search for potential references to old category URLs in the codebase
echo "Searching for potential references to old category URLs..."
rg -l "category/\w+"
# Search for potential hardcoded category names in tests
echo "Searching for hardcoded category names in tests..."
rg "category.*=.*['\"][\w-]+['\"]"
# Look for URL patterns related to categories
echo "Searching for URL patterns with categories..."
rg "url.*category"
# Search for category-related view tests
echo "Searching for category-related tests..."
fd test.*py --exec rg -l "category" {}
Length of output: 858
Script:
#!/bin/bash
# Let's check the implementation details of the category-related views and tests
echo "Checking category view implementation..."
rg -A 10 "retrieve_by_category" server/apps/research/views.py
echo "Checking URL patterns..."
cat server/apps/research/urls.py
echo "Looking for category-related tests..."
fd "test.*py" -x rg -A 10 "test.*category" {}
# Check for any frontend API calls using these endpoints
echo "Checking frontend API calls..."
rg -l "articles/category" --type js
Length of output: 2486
Summary by CodeRabbit
New Features
slugfield to the category model, enhancing URL-friendly identification.slugalongside existing fields.category_slugparameter.Bug Fixes
slugfield in the category model.Documentation
slugfield with help text.