Struct PostgresAdapter

pub struct PostgresAdapter<'a> { /* private fields */ }

An adapter that allows its migrations to act upon PostgreSQL connection transactions.

Implementations

impl<'a> PostgresAdapter<'a>

pub fn new(client: &'a mut Client) -> PostgresAdapter<'a>

Create a new migrator tied to a PostgreSQL connection.

pub fn set_metadata_table<S: Into<String>>(&mut self, metadata_table: S)

Sets a custom metadata table name for this adapter. By default, the metadata table name is called schemamama.

pub fn setup_schema(&self) -> Result<(), PostgresError>

Create the tables Schemamama requires to keep track of schema state. If the tables already exist, this function has no operation.

Trait Implementations

impl<'a> Adapter for PostgresAdapter<'a>

type MigrationType = dyn PostgresMigration

An alias to a specific trait that extends Migration. Typically, the aforementioned trait will declare functions that the adapter will use to migrate upwards and downwards.

type Error = Error

An adapter-specific error type that can be returned from any of this trait’s methods.

fn current_version(&self) -> Result<Option<Version>, PostgresError>

Returns the latest migration version, or None if no migrations have been recorded.

fn migrated_versions(&self) -> Result<BTreeSet<Version>, PostgresError>

Returns a set of the versions of all of the currently applied migrations.

fn apply_migration( &self, migration: &dyn PostgresMigration, ) -> Result<(), PostgresError>

Applies the specified migration.

fn revert_migration( &self, migration: &dyn PostgresMigration, ) -> Result<(), PostgresError>

Reverts the specified migration.