ConnectionTrait

signer_db

Trait ConnectionTrait 

Source 
pub trait ConnectionTrait: Sync {
    // Required methods
    fn get_database_backend(&self) -> DatabaseBackend;
    fn execute<'life0, 'async_trait>(
        &'life0 self,
        stmt: Statement,
    ) -> Pin<Box<dyn Future<Output = Result<ExecResult, DbErr>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             Self: 'async_trait;
    fn execute_unprepared<'life0, 'life1, 'async_trait>(
        &'life0 self,
        sql: &'life1 str,
    ) -> Pin<Box<dyn Future<Output = Result<ExecResult, DbErr>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             'life1: 'async_trait,
             Self: 'async_trait;
    fn query_one<'life0, 'async_trait>(
        &'life0 self,
        stmt: Statement,
    ) -> Pin<Box<dyn Future<Output = Result<Option<QueryResult>, DbErr>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             Self: 'async_trait;
    fn query_all<'life0, 'async_trait>(
        &'life0 self,
        stmt: Statement,
    ) -> Pin<Box<dyn Future<Output = Result<Vec<QueryResult>, DbErr>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             Self: 'async_trait;

    // Provided methods
    fn support_returning(&self) -> bool { ... }
    fn is_mock_connection(&self) -> bool { ... }
}
Expand description

The generic API for a database connection that can perform query or execute statements. It abstracts database connection and transaction

Required Methods§

Source

fn get_database_backend(&self) -> DatabaseBackend

Fetch the database backend as specified in DbBackend. This depends on feature flags enabled.

Source

fn execute<'life0, 'async_trait>( &'life0 self, stmt: Statement, ) -> Pin<Box<dyn Future<Output = Result<ExecResult, DbErr>> + Send + 'async_trait>>
where 'life0: 'async_trait, Self: 'async_trait,

Execute a Statement

Source

fn execute_unprepared<'life0, 'life1, 'async_trait>( &'life0 self, sql: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<ExecResult, DbErr>> + Send + 'async_trait>>
where 'life0: 'async_trait, 'life1: 'async_trait, Self: 'async_trait,

Execute a unprepared Statement

Source

fn query_one<'life0, 'async_trait>( &'life0 self, stmt: Statement, ) -> Pin<Box<dyn Future<Output = Result<Option<QueryResult>, DbErr>> + Send + 'async_trait>>
where 'life0: 'async_trait, Self: 'async_trait,

Execute a Statement and return a query

Source

fn query_all<'life0, 'async_trait>( &'life0 self, stmt: Statement, ) -> Pin<Box<dyn Future<Output = Result<Vec<QueryResult>, DbErr>> + Send + 'async_trait>>
where 'life0: 'async_trait, Self: 'async_trait,

Execute a Statement and return a collection Vec<QueryResult> on success

Provided Methods§

Source

fn support_returning(&self) -> bool

Check if the connection supports RETURNING syntax on insert and update

Source

fn is_mock_connection(&self) -> bool

Check if the connection is a test connection for the Mock database

Implementors§