e016c2421b
New Feature: Named SQL Parameters - Supports both positional (?) and named (:name) parameters - Named parameters are order-independent and more readable - Syntax: sqlite_param :param_name $variable Implementation: - Updated sqlite_param directive to accept 1 or 2 arguments - ModuleConfig.query_params now stores (name, variable) pairs - execute_query() detects named vs positional parameters - Extracted row_to_map closure to avoid type conflicts - Named params use rusqlite named parameter binding Examples (Port 8082): - Book detail: WHERE id = :book_id - Genre filter: WHERE genre = :genre_name - Year range: WHERE year >= :min_year AND year <= :max_year - Title search: WHERE title LIKE '%' || :search_term || '%' - Rating filter: WHERE rating >= :min_rating Benefits of Named Parameters: - Order-independent: params can be in any order in config - Self-documenting: :book_id is clearer than first ? - Maintainable: can add/remove params without reordering - Recommended for all but simplest queries Configuration: - conf/book_named_params.conf: Complete named params example - start_named_params.sh: Quick start script for port 8082 Documentation: - Added named vs positional comparison in README_PARAMETERS.md - Updated README.md with named parameter examples - Documented both syntaxes in directive reference All examples tested and working with both parameter styles.
51 lines
1.5 KiB
Bash
Executable File
51 lines
1.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Start script for named parameters example
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set -e
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echo "📚 Starting Named Parameters Example..."
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echo ""
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# Check if database exists
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if [ ! -f "book_catalog.db" ]; then
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echo "Database not found. Running setup..."
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./setup_book_catalog.sh
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echo ""
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fi
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# Check if module is built
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if [ ! -f "target/debug/libsqlite_serve.dylib" ]; then
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echo "Module not built. Building..."
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direnv exec "$PWD" cargo build
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echo ""
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fi
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# Start nginx
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echo "Starting nginx on http://localhost:8082"
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./ngx_src/nginx-1.28.0/objs/nginx -c conf/book_named_params.conf -p .
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echo ""
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echo "✅ Named Parameters Example is running!"
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echo ""
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echo "Named Parameter Examples:"
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echo " • http://localhost:8082/book?id=1"
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echo " Query: SELECT * FROM books WHERE id = :book_id"
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echo " Param: :book_id = \$arg_id"
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echo ""
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echo " • http://localhost:8082/genre?genre=Programming"
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echo " Query: ... WHERE genre = :genre_name"
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echo " Param: :genre_name = \$arg_genre"
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echo ""
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echo " • http://localhost:8082/years?min=2015&max=2024"
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echo " Query: ... WHERE year >= :min_year AND year <= :max_year"
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echo " Params: :min_year = \$arg_min, :max_year = \$arg_max"
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echo ""
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echo " • http://localhost:8082/search?q=Rust"
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echo " Search by title with named parameter"
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echo ""
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echo " • http://localhost:8082/top-rated?rating=4.7"
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echo " Filter by minimum rating"
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echo ""
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echo "To stop: ./ngx_src/nginx-1.28.0/objs/nginx -s stop -c conf/book_named_params.conf -p ."
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