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use crate::{
resp::{cmd, CommandArg, SingleArgOrCollection},
prepare_command, PreparedCommand,
};
/// A group of Redis commands related to Transactions
/// # See Also
/// [Redis Generic Commands](https://redis.io/commands/?group=transactions)
pub trait TransactionCommands {
/// Marks the given keys to be watched for conditional execution of a transaction.
///
/// # See Also
/// [<https://redis.io/commands/watch/>](https://redis.io/commands/watch/)
#[must_use]
fn watch<K, KK>(&mut self, keys: KK) -> PreparedCommand<Self, ()>
where
Self: Sized,
K: Into<CommandArg>,
KK: SingleArgOrCollection<K>,
{
prepare_command(self, cmd("WATCH").arg(keys))
}
/// Flushes all the previously watched keys for a transaction.
///
/// If you call [`execute`](crate::Transaction::execute),
/// there's no need to manually call UNWATCH.
///
/// # See Also
/// [<https://redis.io/commands/unwatch/>](https://redis.io/commands/unwatch/)
#[must_use]
fn unwatch(&mut self) -> PreparedCommand<Self, ()>
where
Self: Sized,
{
prepare_command(self, cmd("UNWATCH"))
}
}