Function eval_expr_on_json

nodedb-query/src/window/helpers.rs:48–58

Evaluate a `SqlExpr` against a serde_json document, returning a serde_json value.

(expr: &SqlExpr, doc: &serde_json::Value)

/// Evaluate a `SqlExpr` against a serde_json document, returning a serde_json value.
pub(super) fn eval_expr_on_json(expr: &SqlExpr, doc: &serde_json::Value) -> serde_json::Value {
    match expr {
        SqlExpr::Column(name) => get_field(doc, name),
        SqlExpr::Literal(v) => serde_json::Value::from(v.clone()),
        other => {
            let ndb_doc = nodedb_types::Value::from(doc.clone());
            let result = other.eval(&ndb_doc);
            serde_json::Value::from(result)
        }
    }
}

pub(super) fn as_f64(v: &serde_json::Value) -> Option<f64> {
    match v {