Struct mysql_async::Conn

pub struct Conn { /* fields omitted */ }

MySql server connection.

Implementations

impl Conn

pub fn id(&self) -> u32

Returns connection identifier.

pub fn last_insert_id(&self) -> Option<u64>

Returns the ID generated by a query (usually INSERT) on a table with a column having the AUTO_INCREMENT attribute. Returns None if there was no previous query on the connection or if the query did not update an AUTO_INCREMENT value.

pub fn affected_rows(&self) -> u64

Returns the number of rows affected by the last INSERT, UPDATE, REPLACE or DELETE query.

pub fn info(&self) -> Cow<'_, str>

Text information, as reported by the server in the last OK packet, or an empty string.

pub fn get_warnings(&self) -> u16

Number of warnings, as reported by the server in the last OK packet, or 0.

pub fn server_version(&self) -> (u16, u16, u16)

Returns server version.

pub fn opts(&self) -> &Opts

Returns connection options.

pub async fn disconnect(self) -> Result<()>

Disconnects this connection from server.

pub fn new<T: Into<Opts>>(opts: T) -> BoxFuture<'static, Conn>

Returns a future that resolves to Conn.

pub async fn from_url<T: AsRef<str>>(url: T) -> Result<Conn>

Returns a future that resolves to Conn.

pub async fn reset(&mut self) -> Result<()>

Executes COM_RESET_CONNECTION on self.

If server version is older than 5.7.2, then it'll reconnect.

impl Conn

pub async fn start_transaction(
    &mut self,
    options: TxOpts
) -> Result<Transaction<'_>>

Starts a transaction.

Trait Implementations

impl Debug for Conn

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

Formats the value using the given formatter.

impl Drop for Conn

fn drop(&mut self)

Executes the destructor for this type.

impl Queryable for Conn

fn ping(&mut self) -> BoxFuture<'_, ()>

Executes COM_PING.

fn query_iter<'a, Q>(
    &'a mut self,
    query: Q
) -> BoxFuture<'a, QueryResult<'a, 'static, TextProtocol>> where
    Q: AsRef<str> + Send + Sync + 'a, 

Performs the given query and returns the result.

fn prep<'a, Q>(&'a mut self, query: Q) -> BoxFuture<'a, Statement> where
    Q: AsRef<str> + Sync + Send + 'a, 

Prepares the given statement.

fn close(&mut self, stmt: Statement) -> BoxFuture<'_, ()>

Closes the given statement.

fn exec_iter<'a: 's, 's, Q, P>(
    &'a mut self,
    stmt: Q,
    params: P
) -> BoxFuture<'s, QueryResult<'a, 'static, BinaryProtocol>> where
    Q: StatementLike + 'a,
    P: Into<Params>, 

Executes the given statement with given params.

fn query<'a, T, Q>(&'a mut self, query: Q) -> BoxFuture<'a, Vec<T>> where
    Q: AsRef<str> + Send + Sync + 'a,
    T: FromRow + Send + 'static, 

Performs the given query and collects the first result set.

fn query_first<'a, T, Q>(&'a mut self, query: Q) -> BoxFuture<'a, Option<T>> where
    Q: AsRef<str> + Send + Sync + 'a,
    T: FromRow + Send + 'static, 

Performs the given query and returns the first row of the first result set.

fn query_map<'a, T, F, Q, U>(
    &'a mut self,
    query: Q,
    f: F
) -> BoxFuture<'a, Vec<U>> where
    Q: AsRef<str> + Send + Sync + 'a,
    T: FromRow + Send + 'static,
    F: FnMut(T) -> U + Send + 'a,
    U: Send, 

Performs the given query and maps each row of the first result set.

fn query_fold<'a, T, F, Q, U>(
    &'a mut self,
    query: Q,
    init: U,
    f: F
) -> BoxFuture<'a, U> where
    Q: AsRef<str> + Send + Sync + 'a,
    T: FromRow + Send + 'static,
    F: FnMut(U, T) -> U + Send + 'a,
    U: Send + 'a, 

Performs the given query and folds the first result set to a single value.

fn query_drop<'a, Q>(&'a mut self, query: Q) -> BoxFuture<'a, ()> where
    Q: AsRef<str> + Send + Sync + 'a, 

Performs the given query and drops the query result.

fn exec_batch<'a: 'b, 'b, S, P, I>(
    &'a mut self,
    stmt: S,
    params_iter: I
) -> BoxFuture<'b, ()> where
    S: StatementLike + 'b,
    I: IntoIterator<Item = P> + Send + 'b,
    I::IntoIter: Send,
    P: Into<Params> + Send, 

Exectues the given statement for each item in the given params iterator.

fn exec<'a: 'b, 'b, T, S, P>(
    &'a mut self,
    stmt: S,
    params: P
) -> BoxFuture<'b, Vec<T>> where
    S: StatementLike + 'b,
    P: Into<Params> + Send + 'b,
    T: FromRow + Send + 'static, 

Exectues the given statement and collects the first result set.

fn exec_first<'a: 'b, 'b, T, S, P>(
    &'a mut self,
    stmt: S,
    params: P
) -> BoxFuture<'b, Option<T>> where
    S: StatementLike + 'b,
    P: Into<Params> + Send + 'b,
    T: FromRow + Send + 'static, 

Exectues the given statement and returns the first row of the first result set.

fn exec_map<'a: 'b, 'b, T, S, P, U, F>(
    &'a mut self,
    stmt: S,
    params: P,
    f: F
) -> BoxFuture<'b, Vec<U>> where
    S: StatementLike + 'b,
    P: Into<Params> + Send + 'b,
    T: FromRow + Send + 'static,
    F: FnMut(T) -> U + Send + 'a,
    U: Send + 'a, 

Exectues the given stmt and maps each row of the first result set.

fn exec_fold<'a: 'b, 'b, T, S, P, U, F>(
    &'a mut self,
    stmt: S,
    params: P,
    init: U,
    f: F
) -> BoxFuture<'b, U> where
    S: StatementLike + 'b,
    P: Into<Params> + Send + 'b,
    T: FromRow + Send + 'static,
    F: FnMut(U, T) -> U + Send + 'a,
    U: Send + 'a, 

Exectues the given stmt and folds the first result set to a signel value.

fn exec_drop<'a: 'b, 'b, S, P>(
    &'a mut self,
    stmt: S,
    params: P
) -> BoxFuture<'b, ()> where
    S: StatementLike + 'b,
    P: Into<Params> + Send + 'b, 

Exectues the given statement and drops the result.

impl<'a> ToConnection<'a, 'static> for &'a mut Conn

impl ToConnection<'static, 'static> for Conn