Trait UnifiedUniqueEntityExt 

pub trait UnifiedUniqueEntityExt: UnifiedUniqueEntity + UnifiedEntityDatabaseMutation {
    // Required methods
    fn get_unique(conn: &Connection) -> CryptoKeystoreResult<Option<Self>>;
    fn set_and_replace(
        &self,
        tx: &Transaction<'_>,
    ) -> CryptoKeystoreResult<bool>;
    fn set_if_absent(&self, tx: &Transaction<'_>) -> CryptoKeystoreResult<bool>;
    fn exists(conn: &Connection) -> CryptoKeystoreResult<bool>;
}

Unique entities get some convenience methods implemented automatically.

Required Methods

fn get_unique(conn: &Connection) -> CryptoKeystoreResult<Option<Self>>

Get this unique entity from the database.

fn set_and_replace(&self, tx: &Transaction<'_>) -> CryptoKeystoreResult<bool>

Set this unique entity into the database, replacing it if it already exists.

Returns true if the entity previously existed and was replaced, or false if it was not removed and this was a pure insertion.

fn set_if_absent(&self, tx: &Transaction<'_>) -> CryptoKeystoreResult<bool>

Set this unique entity into the database if it does not already exist.

Returns true if the entity was saved, or false if it aborted due to an already-existing entity.

fn exists(conn: &Connection) -> CryptoKeystoreResult<bool>

Returns whether or not the database contains an instance of this unique entity.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<E> UnifiedUniqueEntityExt for E

where E: UnifiedUniqueEntity + UnifiedEntityDatabaseMutation + Sync,