Trait Query

pub trait Query<A> {
    // Required methods
    fn prepare_mysql<'life0, 'async_trait>(
        connection: &'life0 mut AnyConnection,
    ) -> Pin<Box<dyn Future<Output = Result<AnyStatement<'static>>> + Send + 'async_trait>>
       where 'life0: 'async_trait;
    fn query_mysql<'a>(
        &'a self,
        statement: &'a AnyStatement<'static>,
    ) -> Query<'a, Any, AnyArguments<'a>>;
    fn row_data(row: &AnyRow) -> Result<A>;

    // Provided methods
    fn prepare<'life0, 'async_trait>(
        connection: &'life0 mut AnyConnection,
    ) -> Pin<Box<dyn Future<Output = Result<AnyStatement<'static>>> + Send + 'async_trait>>
       where Self: Send + 'async_trait,
             'life0: 'async_trait { ... }
    fn query<'a>(
        &'a self,
        connection: &AnyConnection,
        statement: &'a AnyStatement<'static>,
    ) -> Query<'a, Any, AnyArguments<'a>> { ... }
}

An interface for queries to allow converting them to various database implementations

Required Methods

fn prepare_mysql<'life0, 'async_trait>( connection: &'life0 mut AnyConnection, ) -> Pin<Box<dyn Future<Output = Result<AnyStatement<'static>>> + Send + 'async_trait>>

where 'life0: 'async_trait,

MySQL version of Query::prepare.

fn query_mysql<'a>( &'a self, statement: &'a AnyStatement<'static>, ) -> Query<'a, Any, AnyArguments<'a>>

MySQL version of Query::query.

fn row_data(row: &AnyRow) -> Result<A>

Gets the row data for a result row of this query

Provided Methods

fn prepare<'life0, 'async_trait>( connection: &'life0 mut AnyConnection, ) -> Pin<Box<dyn Future<Output = Result<AnyStatement<'static>>> + Send + 'async_trait>>

where Self: Send + 'async_trait, 'life0: 'async_trait,

Prepare a statement to be later used by Query::query.

fn query<'a>( &'a self, connection: &AnyConnection, statement: &'a AnyStatement<'static>, ) -> Query<'a, Any, AnyArguments<'a>>

Get a query with all arguments bound already, ready to be fetched.

Object Safety

This trait is not object safe.

Implementors