Crate parsql_migrations 

parsql-migrations

Type-safe database migration system for parsql.

This crate provides a flexible and safe way to manage database schema changes across multiple database backends (PostgreSQL, SQLite, etc.).

Features

• Type-safe migration definitions
• Support for SQL and programmatic migrations
• Transaction support with automatic rollback
• Multi-database backend support
• Async runtime support
• Migration validation and checksums

Example

use parsql_migrations::{Migration, MigrationConnection, MigrationError};

struct CreateUsersTable;

impl Migration for CreateUsersTable {
    fn version(&self) -> i64 { 1 }
    fn name(&self) -> &str { "create_users_table" }
     
    fn up(&self, conn: &mut dyn MigrationConnection) -> Result<(), MigrationError> {
        conn.execute(
            "CREATE TABLE users (
                id BIGSERIAL PRIMARY KEY,
                name VARCHAR(255) NOT NULL
            )"
        )
    }
     
    fn down(&self, conn: &mut dyn MigrationConnection) -> Result<(), MigrationError> {
        conn.execute("DROP TABLE IF EXISTS users")
    }
}

Re-exports

pub use error::MigrationError;

pub use traits_simple::Migration;

pub use traits_simple::MigrationConnection;

pub use types::MigrationStatus;

pub use types::MigrationReport;

pub use types::MigrationDetails;

pub use runner_simple::MigrationRunner;

pub use config::MigrationConfig;

Modules

config

Configuration options for the migration system.

error

Error types for the migration system.

prelude

Prelude module for convenient imports

runner_simple

Migration runner implementation using simplified traits.

traits_simple

Simplified migration traits that avoid dyn compatibility issues.

types

Common types used throughout the migration system.