Struct Queryer 

pub struct Queryer<'a, C> {
    pub manager: &'a PostArchiverManager<C>,
}

Available on crate feature utils only.

Helper that wraps a PostArchiverManager reference and provides low-level SQL execution.

Each query builder owns a Queryer at construction time and uses it to access the database connection and result cache.

Fields

manager: &'a PostArchiverManager<C>

Implementations

impl<'a, C: PostArchiverConnection> Queryer<'a, C>

pub fn new(manager: &'a PostArchiverManager<C>) -> Self

pub fn fetch<Q: FromQuery>( &self, sql: &str, params: Vec<Param>, ) -> Result<Vec<Q>>

Execute a SELECT query and deserialize all result rows into Vec<Q>.

pub fn count(&self, sql: &str, params: Vec<Param>) -> Result<u64>

Execute a SELECT COUNT(*) query and return the number of matching rows.

Trait Implementations

impl<T> Debug for Queryer<'_, T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.