Struct HarnessWithOutput

pub struct HarnessWithOutput<'a, C, W> { /* private fields */ }

A migration harness that writes messages into some output for each applied/reverted migration

Implementations

impl<'a, C, W> HarnessWithOutput<'a, C, W>

pub fn new<DB>(harness: &'a mut C, output: W) -> Self

where C: MigrationHarness<DB>, DB: Backend, W: Write,

Create a new HarnessWithOutput that writes to a specific writer

impl<'a, C> HarnessWithOutput<'a, C, Stdout>

pub fn write_to_stdout<DB>(harness: &'a mut C) -> Self

where C: MigrationHarness<DB>, DB: Backend,

Create a new HarnessWithOutput that writes to stdout

Trait Implementations

impl<C, W, DB> MigrationHarness<DB> for HarnessWithOutput<'_, C, W>

where W: Write, C: MigrationHarness<DB>, DB: Backend,

fn run_migration( &mut self, migration: &dyn Migration<DB>, ) -> Result<MigrationVersion<'static>>

Apply a single migration

fn revert_migration( &mut self, migration: &dyn Migration<DB>, ) -> Result<MigrationVersion<'static>>

Revert a single migration

fn applied_migrations(&mut self) -> Result<Vec<MigrationVersion<'static>>>

Get a list of already applied migration versions

fn has_pending_migration<S: MigrationSource<DB>>( &mut self, source: S, ) -> Result<bool>

Checks if the database represented by the current harness has unapplied migrations

fn run_pending_migrations<S: MigrationSource<DB>>( &mut self, source: S, ) -> Result<Vec<MigrationVersion<'_>>>

Execute all unapplied migrations for a given migration source

fn run_next_migration<S: MigrationSource<DB>>( &mut self, source: S, ) -> Result<MigrationVersion<'_>>

Execute the next migration from the given migration source

fn revert_all_migrations<S: MigrationSource<DB>>( &mut self, source: S, ) -> Result<Vec<MigrationVersion<'_>>>

Revert all applied migrations from a given migration source

fn revert_last_migration<S: MigrationSource<DB>>( &mut self, source: S, ) -> Result<MigrationVersion<'static>>

Revert the last migration from a given migration source

fn pending_migrations<S: MigrationSource<DB>>( &mut self, source: S, ) -> Result<Vec<Box<dyn Migration<DB>>>>

Get a list of non applied migrations for a specific migration source