Struct Migrator 

pub struct Migrator { /* private fields */ }

Structural Fingerprinting Engine entry point. Compares Rust Abstract Syntax Tree snapshots loaded from .json iteratively against information_schema.columns.

Implementations

impl Migrator

pub fn new(pool: AnyPool) -> Self

Initializes a new Migrator against the provided sqlx Database Pool.

pub async fn migrate_table( &self, table_name: &str, history: &[SnapshotModel], ) -> Result<(), String>

Migrate a single table using the Structural Fingerprinting Engine.

pub async fn rollback_table( &self, table_name: &str, history: &[SnapshotModel], ) -> Result<(), String>

Rollback a single table by one exact structural fingerprint.

pub fn diff_snapshots( &self, a: Option<&SnapshotModel>, b: &SnapshotModel, ) -> Vec<String>

Analytically computes exact directional ALTER TABLE / CREATE TABLE translations between two structural states using the AST Snapshot models.

pub fn map_type_to_pg(&self, ti: &str) -> String

Fallbacks Rust AST macro-string definitions securely into Native PostgreSQL string syntaxes.