Trait UsernameWriter 

pub trait UsernameWriter: UsernameReader {
    // Required methods
    fn set_username<'life0, 'life1, 'life2, 'async_trait>(
        &'life0 self,
        wallet: &'life1 str,
        username: &'life2 str,
        now: DateTime<Utc>,
    ) -> Pin<Box<dyn Future<Output = Result<(UsernameRecord, Option<String>), UsernameWriteError>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait,
             'life2: 'async_trait;
    fn delete_username<'life0, 'life1, 'async_trait>(
        &'life0 self,
        wallet: &'life1 str,
    ) -> Pin<Box<dyn Future<Output = Result<Option<UsernameRecord>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
}

Write operations for usernames.

Required Methods

fn set_username<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, wallet: &'life1 str, username: &'life2 str, now: DateTime<Utc>, ) -> Pin<Box<dyn Future<Output = Result<(UsernameRecord, Option<String>), UsernameWriteError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Set (insert or update) the username for a wallet. Returns the final row and the previous username (if any) on success. Returns UsernameWriteError::UniqueViolation when the username is taken.

fn delete_username<'life0, 'life1, 'async_trait>( &'life0 self, wallet: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Option<UsernameRecord>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Delete the username for a wallet. Returns the deleted row if one existed.

Implementors