Implemented a complete shopping cart system with database persistence,
replacing the previous stub implementation. The cart now properly stores
items across sessions and follows the project's architecture patterns.
Database Changes:
- Add cart_items table with vendor_id, session_id, product_id, quantity, price_at_add
- Create unique constraint to prevent duplicate items per session
- Add indexes for session lookups and old cart cleanup
- Run migration a2064e1dfcd4 to create cart_items table
New Models & Schemas:
- models/database/cart.py: CartItem SQLAlchemy model with relationships
- models/schema/cart.py: Pydantic schemas for requests/responses
* AddToCartRequest, UpdateCartItemRequest
* CartResponse, CartItemResponse, CartOperationResponse, ClearCartResponse
Exception Handling:
- app/exceptions/cart.py: Cart-specific exceptions following project patterns
* CartItemNotFoundException - item not found in cart
* InsufficientInventoryForCartException - not enough inventory for cart operation
* InvalidCartQuantityException - invalid quantity validation
* CartValidationException - general cart validation
* EmptyCartException - operations on empty cart
* ProductNotAvailableForCartException - product unavailable
- Updated app/exceptions/__init__.py to export cart exceptions
Service Layer:
- Implement cart_service.get_cart() - fetch cart from database with totals
- Implement cart_service.add_to_cart() - create or update cart items with inventory checks
- Implement cart_service.update_cart_item() - update quantity with validation
- Implement cart_service.remove_from_cart() - delete cart item
- Implement cart_service.clear_cart() - remove all items for session
- Replace generic exceptions with cart-specific ones
- Fix InsufficientInventoryException usage (was using wrong parameters)
API Layer:
- Update app/api/v1/shop/cart.py to use Pydantic schemas
- Add response_model declarations to all endpoints
- Add return type hints for type safety
- Convert service dict responses to Pydantic models
Features:
- Cart items persist in database across server restarts
- Inventory validation before adding/updating items
- Price captured at time of adding to cart
- Duplicate items update quantity instead of creating new entries
- Full CRUD operations with proper error handling
- Type-safe API with auto-generated OpenAPI documentation
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Issue:
- Cart was empty after adding products
- Product and cart pages reference this.sessionId but it wasn't defined
- Session ID was being created separately in each page component
Solution:
- Add sessionId property to shopLayoutData base component
- Add getOrCreateSessionId() method to manage session across all pages
- Initialize sessionId in init() so it's available to all child components
- Session ID stored in localStorage as 'cart_session_id'
Now the cart session is shared across all shop pages and cart items
persist correctly.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Issues fixed:
- placeholder.jpg contained SVG content but browsers won't render SVG in .jpg files
- Multiple templates referenced wrong placeholder paths
Changes:
- Rename placeholder.jpg to placeholder.svg with proper SVG file
- Update product.html to use /static/shop/img/placeholder.svg
- Update products.html to use /static/shop/img/placeholder.svg
- Update cart.html to use /static/shop/img/placeholder.svg (was /static/images/)
All shop pages now correctly display placeholder images when products
have no image_link set.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Issues fixed:
- Product ID was undefined - Alpine.js couldn't access data-product-id from nested div
- Missing placeholder image caused 404 errors
Changes:
- Pass product_id and vendor.id through window globals instead of dataset
- Initialize productId and vendorId directly from window variables
- Add placeholder.jpg SVG for products without images
- Add debug logging to track initialization
The product detail page now correctly loads products and handles missing images.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Fix shop frontend links to work correctly across all three access methods:
- Custom domain (wizamart.shop)
- Subdomain (wizamart.localhost)
- Path-based (/vendor/wizamart/)
Changes:
- Update get_shop_context() to calculate base_url based on access method
- Update all shop templates to use {{ base_url }} for links
- Add base_url to shop-layout.js Alpine.js component
- Document multi-access routing in shop architecture docs
This ensures links work correctly regardless of how the shop is accessed,
solving broken navigation issues with path-based access.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Add shared template infrastructure and static assets:
- Shared Jinja2 templates for reusable components
- Favicon for branding
- Local Tailwind CSS fallback
- Shop CSS styles directory
This provides the foundation for consistent UI components across
admin, vendor, and shop frontends with CDN fallback support.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
