Struct MigrationContext 

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

Implementations

impl<'a> MigrationContext<'a>

pub fn new(prefix: String, storage: &'a mut dyn MigrationBackendAdapter) -> Self

pub fn nested<TOld, TNew>(&mut self, key: &str, old_data: TOld) -> Result<TNew>

where TOld: AmeStateFields, TNew: MigrateFrom<TOld> + AmeStateFields,

pub fn delete(&mut self, key: &str) -> Result<()>

pub fn rename(&mut self, from: &str, to: &str) -> Result<()>

pub fn transform<TOld, TNew>( &mut self, key: &str, f: impl FnOnce(TOld) -> Result<TNew>, ) -> Result<()>

where TOld: DeserializeOwned, TNew: Serialize,

pub fn merge<TOld1, TOld2, TNew>( &mut self, from: (&str, &str), into: &str, f: impl FnOnce(TOld1, TOld2) -> Result<TNew>, ) -> Result<()>

where TOld1: DeserializeOwned, TOld2: DeserializeOwned, TNew: Serialize,

pub fn split<TOld, TNew1, TNew2>( &mut self, from: &str, into: (&str, &str), f: impl FnOnce(TOld) -> Result<(TNew1, TNew2)>, ) -> Result<()>

where TOld: DeserializeOwned, TNew1: Serialize, TNew2: Serialize,

pub fn get<T: DeserializeOwned>(&self, key: &str) -> Result<Option<T>>

pub fn set<T: Serialize>(&mut self, key: &str, value: &T) -> Result<()>

pub fn global_get<T: DeserializeOwned>( &self, full_key: &str, ) -> Result<Option<T>>

pub fn global_set<T: Serialize>( &mut self, full_key: &str, value: &T, ) -> Result<()>

pub fn get_raw(&self, key: &str) -> Result<Option<Vec<u8>>>

pub fn set_raw(&mut self, key: &str, value: &[u8]) -> Result<()>

pub fn scoped(&mut self, sub_prefix: &str) -> MigrationContext<'_>

pub fn scan_map<K, V>(&self, key: &str) -> Result<HashMap<K, V>>

where K: FromStr + Eq + Hash, V: DeserializeOwned,