Struct MigrationContext 

pub struct MigrationContext<'connection> { /* private fields */ }

Host SQL inside one schema-migration transaction.

The database retains the connection and transaction boundary; migration code can transform the host schema without opening, retaining, or passing a SQLite connection.

Implementations

impl MigrationContext<'_>

pub fn execute<P>(&self, sql: &str, params: P) -> Result<usize>

where P: Params,

pub fn execute_batch(&self, sql: &str) -> Result<()>

pub fn query_row<T, P, F>(&self, sql: &str, params: P, map: F) -> Result<T>

where P: Params, F: FnOnce(&Row<'_>) -> Result<T>,

pub fn query<T, P, F>(&self, sql: &str, params: P, map: F) -> Result<Vec<T>>

where P: Params, F: FnMut(&Row<'_>) -> Result<T>,