Struct diesel::query_builder::BoxedSqlQuery

pub struct BoxedSqlQuery<'f, DB: Backend, Query> { /* private fields */ }

See SqlQuery::into_boxed.

Implementations

impl<'f, DB: Backend, Query> BoxedSqlQuery<'f, DB, Query>

pub fn bind<BindSt, Value>(self, b: Value) -> Self

where DB: HasSqlType<BindSt>, Value: ToSql<BindSt, DB> + Send + 'f, BindSt: Send + 'f,

See SqlQuery::bind.

pub fn sql<T: AsRef<str>>(self, sql: T) -> Self

See SqlQuery::sql.

Trait Implementations

impl<DB, Q> Query for BoxedSqlQuery<'_, DB, Q>

where DB: Backend,

type SqlType = Untyped

The SQL type that this query represents.

impl<DB, Query> QueryFragment<DB> for BoxedSqlQuery<'_, DB, Query>

where DB: Backend + DieselReserveSpecialization, Query: QueryFragment<DB>,

fn walk_ast<'b>(&'b self, out: AstPass<'_, 'b, DB>) -> QueryResult<()>

Walk over this QueryFragment for all passes.

fn to_sql(&self, out: &mut DB::QueryBuilder, backend: &DB) -> QueryResult<()>

Available on crate feature i-implement-a-third-party-backend-and-opt-into-breaking-changes only.

Converts this QueryFragment to its SQL representation.

fn collect_binds<'b>( &'b self, out: &mut DB::BindCollector<'b>, metadata_lookup: &mut DB::MetadataLookup, backend: &'b DB ) -> QueryResult<()>

Available on crate feature i-implement-a-third-party-backend-and-opt-into-breaking-changes only.

Serializes all bind parameters in this query.

fn is_safe_to_cache_prepared(&self, backend: &DB) -> QueryResult<bool>

Available on crate feature i-implement-a-third-party-backend-and-opt-into-breaking-changes only.

Is this query safe to store in the prepared statement cache?

fn is_noop(&self, backend: &DB) -> QueryResult<bool>

Available on crate feature i-implement-a-third-party-backend-and-opt-into-breaking-changes only.

Does walking this AST have any effect?

impl<DB: Backend, Query> QueryId for BoxedSqlQuery<'_, DB, Query>

type QueryId = ()

A type which uniquely represents Self in a SQL query.

const HAS_STATIC_QUERY_ID: bool = false

Can the SQL generated by Self be uniquely identified by its type?

fn query_id() -> Option<TypeId>

Returns the type id of Self::QueryId if Self::HAS_STATIC_QUERY_ID. Returns None otherwise.

impl<Conn: Connection, Query> RunQueryDsl<Conn> for BoxedSqlQuery<'_, Conn::Backend, Query>

fn load<'query, U>(self, conn: &mut Conn) -> QueryResult<Vec<U>>

where Self: LoadQuery<'query, Conn, U>,

Executes the given query, returning a Vec with the returned rows.

fn load_iter<'conn, 'query: 'conn, U, B>( self, conn: &'conn mut Conn ) -> QueryResult<Self::RowIter<'conn>>

where U: 'conn, Self: LoadQuery<'query, Conn, U, B> + 'conn,

Executes the given query, returning an Iterator with the returned rows.

fn get_result<'query, U>(self, conn: &mut Conn) -> QueryResult<U>

where Self: LoadQuery<'query, Conn, U>,

Runs the command, and returns the affected row.

fn get_results<'query, U>(self, conn: &mut Conn) -> QueryResult<Vec<U>>

where Self: LoadQuery<'query, Conn, U>,

Runs the command, returning an Vec with the affected rows.