Struct DeleteExecutor 

pub struct DeleteExecutor<E: EntityKind> { /* private fields */ }

DeleteExecutor

Implementations

impl<E: EntityKind> DeleteExecutor<E>

pub const fn new(db: Db<E::Canister>, debug: bool) -> Self

pub const fn debug(self) -> Self

pub fn one(self, value: impl FieldValue) -> Result<Response<E>, Error>

HELPER METHODS

Delete a single matching row.

pub fn only(self) -> Result<Response<E>, Error>

Delete the unit-key row.

pub fn many( self, values: impl IntoIterator<Item = impl FieldValue>, ) -> Result<Response<E>, Error>

Delete multiple rows by primary keys.

pub fn all(self) -> Result<Response<E>, Error>

Delete all rows.

pub fn filter<F, I>(self, f: F) -> Result<Response<E>, Error>

where F: FnOnce(FilterDsl) -> I, I: IntoFilterExpr,

Apply a filter builder and delete matches.

pub fn explain(self, query: DeleteQuery) -> Result<QueryPlan, Error>

EXECUTION METHODS

Validate and return the query plan without executing.

pub fn execute(self, query: DeleteQuery) -> Result<Response<E>, Error>

Execute a delete query and return the removed rows.

Trait Implementations

impl<E: Clone + EntityKind> Clone for DeleteExecutor<E>

where E::Canister: Clone,

fn clone(&self) -> DeleteExecutor<E>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<E: Copy + EntityKind> Copy for DeleteExecutor<E>

where E::Canister: Copy,