Struct PgEngine 

pub struct PgEngine { /* private fields */ }

PostgreSQL query engine that implements the Prax QueryEngine trait.

Implementations

impl PgEngine

pub fn new(pool: PgPool) -> Self

Create a new PostgreSQL engine with the given connection pool.

pub fn pool(&self) -> &PgPool

Get a reference to the connection pool.

Trait Implementations

impl Clone for PgEngine

fn clone(&self) -> PgEngine

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl QueryEngine for PgEngine

fn query_many<T: Model + Send + 'static>( &self, sql: &str, params: Vec<FilterValue>, ) -> BoxFuture<'_, QueryResult<Vec<T>>>

Execute a SELECT query and return rows.

fn query_one<T: Model + Send + 'static>( &self, sql: &str, params: Vec<FilterValue>, ) -> BoxFuture<'_, QueryResult<T>>

Execute a SELECT query expecting one result.

fn query_optional<T: Model + Send + 'static>( &self, sql: &str, params: Vec<FilterValue>, ) -> BoxFuture<'_, QueryResult<Option<T>>>

Execute a SELECT query expecting zero or one result.

fn execute_insert<T: Model + Send + 'static>( &self, sql: &str, params: Vec<FilterValue>, ) -> BoxFuture<'_, QueryResult<T>>

Execute an INSERT query and return the created row.

fn execute_update<T: Model + Send + 'static>( &self, sql: &str, params: Vec<FilterValue>, ) -> BoxFuture<'_, QueryResult<Vec<T>>>

Execute an UPDATE query and return affected rows.

fn execute_delete( &self, sql: &str, params: Vec<FilterValue>, ) -> BoxFuture<'_, QueryResult<u64>>

Execute a DELETE query and return affected rows count.

fn execute_raw( &self, sql: &str, params: Vec<FilterValue>, ) -> BoxFuture<'_, QueryResult<u64>>

Execute a raw SQL query.

fn count( &self, sql: &str, params: Vec<FilterValue>, ) -> BoxFuture<'_, QueryResult<u64>>

Get a count of records.