Function str_arg

nodedb-query/src/functions/shared.rs:8–16

Extract a string argument at `idx`, returning `None` for null/missing.

(args: &[Value], idx: usize)

/// Extract a string argument at `idx`, returning `None` for null/missing.
pub fn str_arg(args: &[Value], idx: usize) -> Option<String> {
    match args.get(idx)? {
        Value::String(s) => Some(s.clone()),
        Value::Uuid(s) | Value::Ulid(s) | Value::Regex(s) => Some(s.clone()),
        Value::DateTime(dt) | Value::NaiveDateTime(dt) => Some(dt.to_iso8601()),
        Value::Duration(d) => Some(d.to_human()),
        _ => None,
    }
}

/// Extract a numeric argument with bool coercion.
pub fn num_arg(args: &[Value], idx: usize) -> Option<f64> {