What is SQL to Diesel Model Generator?
This tool converts SQL CREATE TABLE statements to Rust Diesel ORM model structs. Diesel is the most popular ORM for Rust, providing compile-time query verification and type-safe database access. The generated code includes table! macro definitions, model structs with Queryable, Selectable, and Insertable derive macros, and belongs_to associations for foreign keys.
How to Use
- Paste your SQL CREATE TABLE statements
- Select your database dialect (PostgreSQL, MySQL, or SQLite)
- Configure generation options (table! macro, Insertable, newtype PKs)
- Click "Generate" and copy the Diesel model code
Why Use This Tool?
Tips & Best Practices
- Diesel requires the table! macro for compile-time query verification
- Use newtype pattern for primary keys to prevent mixing IDs across tables
- Nullable columns are automatically wrapped in Option<T> for Rust safety
- Add required feature flags to Cargo.toml: chrono, uuid, serde_json, numeric as needed
Frequently Asked Questions
What is Diesel?
Diesel is a safe, extensible ORM and query builder for Rust. It provides compile-time query checking, type-safe database access, and supports PostgreSQL, MySQL, and SQLite backends.
How are SQL types mapped to Rust types?
SQL types are mapped to Diesel-compatible Rust types. INTEGER maps to i32, BIGINT maps to i64, VARCHAR/TEXT map to String, BOOLEAN maps to bool, TIMESTAMP maps to chrono::NaiveDateTime, DATE maps to chrono::NaiveDate, and nullable columns use Option<T>.
What derive macros are generated?
The tool generates #[derive(Queryable, Selectable, Insertable)] for model structs. It also generates the #[diesel(table_name)] attribute and #[diesel(check_for_backend)] for type checking.
How are foreign keys handled?
Foreign key references in SQL are converted to Diesel association macros using #[diesel(belongs_to)] annotations on the model structs. Has-many relationships are provided as comments for manual addition.
Is my SQL data sent to a server?
No, all processing happens entirely in your browser. Your SQL schema never leaves your device. The conversion is performed client-side using a regex-based parser.