Struct MigrationContext 

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

App SQL inside the transaction owned by the migration run. The context borrows its owner and cannot change the transaction or connection.

Implementations

impl<'connection> MigrationContext<'connection>

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

Execute one app statement with parameters.

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

Execute app statements without escaping the migration transaction.

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

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

Map one row from an app query.

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

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

Map every result of an app query.