Struct sea_query_diesel::SeaQuery

pub struct SeaQuery<DB: Backend> { /* private fields */ }

Trait Implementations

impl<DB> Query for SeaQuery<DB>where DB: Backend,

type SqlType = Untyped

The SQL type that this query represents.

impl<DB> QueryFragment<DB, NotSpecialized> for SeaQuery<DB>where DB: Backend,

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 as Backend>::QueryBuilder, backend: &DB ) -> Result<(), Error>

Converts this QueryFragment to its SQL representation.

fn collect_binds<'b>( &'b self, out: &mut <DB as Backend>::BindCollector<'b>, metadata_lookup: &mut <DB as TypeMetadata>::MetadataLookup, backend: &'b DB ) -> Result<(), Error>

Serializes all bind parameters in this query.

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

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

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

Does walking this AST have any effect?

impl<DB: Backend> QueryId for SeaQuery<DB>

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> RunQueryDsl<Conn> for SeaQuery<Conn::Backend>

fn execute(self, conn: &mut Conn) -> Result<usize, Error>where Conn: Connection, Self: ExecuteDsl<Conn, <Conn as Connection>::Backend>,

Executes the given command, returning the number of rows affected.

fn load<'query, U>(self, conn: &mut Conn) -> Result<Vec<U, Global>, Error>where Self: LoadQuery<'query, Conn, U, DefaultLoadingMode>,

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

fn load_iter<'conn, 'query, U, B>( self, conn: &'conn mut Conn ) -> Result<Self::RowIter<'conn>, Error>where 'query: 'conn, 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) -> Result<U, Error>where Self: LoadQuery<'query, Conn, U, DefaultLoadingMode>,

Runs the command, and returns the affected row.

fn get_results<'query, U>( self, conn: &mut Conn ) -> Result<Vec<U, Global>, Error>where Self: LoadQuery<'query, Conn, U, DefaultLoadingMode>,

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