Struct trezm_redis::Script

pub struct Script { /* fields omitted */ }

Represents a lua script.

Methods

impl Script

The script object represents a lua script that can be executed on the redis server. The object itself takes care of automatic uploading and execution. The script object itself can be shared and is immutable.

Example:

let script = redis::Script::new(r"
    return tonumber(ARGV[1]) + tonumber(ARGV[2]);
");
let result = script.arg(1).arg(2).invoke(&mut con);
assert_eq!(result, Ok(3));

pub fn new(code: &str) -> Script

Creates a new script object.

pub fn get_hash(&self) -> &str

Returns the script's SHA1 hash in hexadecimal format.

pub fn key<T: ToRedisArgs>(&self, key: T) -> ScriptInvocation

Creates a script invocation object with a key filled in.

pub fn arg<T: ToRedisArgs>(&self, arg: T) -> ScriptInvocation

Creates a script invocation object with an argument filled in.

pub fn prepare_invoke(&self) -> ScriptInvocation

Returns an empty script invocation object. This is primarily useful for programmatically adding arguments and keys because the type will not change. Normally you can use arg and key directly.

pub fn invoke<T: FromRedisValue>(
    &self,
    con: &mut dyn ConnectionLike
) -> RedisResult<T>

Invokes the script directly without arguments.