Struct CopyOptions

pub struct CopyOptions<Db: ToString> { /* private fields */ }

Options for the COPY command

Example

use redis::{Commands, RedisResult, CopyOptions, SetExpiry, ExistenceCheck};
fn copy_value(
    con: &mut redis::Connection,
    old: &str,
    new: &str,
) -> RedisResult<Vec<usize>> {
    let opts = CopyOptions::default()
        .db("my_other_db")
        .replace(true);
    con.copy(old, new, opts)
}

Implementations

impl<Db: ToString> CopyOptions<Db>

pub fn db<Db2: ToString>(self, db: Db2) -> CopyOptions<Db2>

Set the target database for the copy operation

pub fn replace(self, replace: bool) -> Self

Set the replace option for the copy operation

Trait Implementations

impl<Db: Clone + ToString> Clone for CopyOptions<Db>

fn clone(&self) -> CopyOptions<Db>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Db: Debug + ToString> Debug for CopyOptions<Db>

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

Formats the value using the given formatter.

impl Default for CopyOptions<&'static str>

fn default() -> Self

Returns the “default value” for a type.

impl<Db: ToString> ToRedisArgs for CopyOptions<Db>

fn write_redis_args<W>(&self, out: &mut W)

where W: ?Sized + RedisWrite,

This writes the value into a vector of bytes. Each item is a single argument. Most items generate a single item.

fn to_redis_args(&self) -> Vec<Vec<u8>>

This converts the value into a vector of bytes. Each item is a single argument. Most items generate a vector of a single item.

fn describe_numeric_behavior(&self) -> NumericBehavior

Returns an information about the contained value with regards to it’s numeric behavior in a redis context. This is used in some high level concepts to switch between different implementations of redis functions (for instance INCR vs INCRBYFLOAT).

fn num_of_args(&self) -> usize

Returns the number of arguments this value will generate.

impl<Db: Copy + ToString> Copy for CopyOptions<Db>