polars_python/expr/
struct.rs

1use pyo3::prelude::*;
2
3use crate::error::PyPolarsErr;
4use crate::expr::ToExprs;
5use crate::PyExpr;
6
7#[pymethods]
8impl PyExpr {
9    fn struct_field_by_index(&self, index: i64) -> Self {
10        self.inner.clone().struct_().field_by_index(index).into()
11    }
12
13    fn struct_field_by_name(&self, name: &str) -> Self {
14        self.inner.clone().struct_().field_by_name(name).into()
15    }
16
17    fn struct_multiple_fields(&self, names: Vec<String>) -> Self {
18        self.inner.clone().struct_().field_by_names(&names).into()
19    }
20
21    fn struct_rename_fields(&self, names: Vec<String>) -> Self {
22        self.inner.clone().struct_().rename_fields(names).into()
23    }
24
25    #[cfg(feature = "json")]
26    fn struct_json_encode(&self) -> Self {
27        self.inner.clone().struct_().json_encode().into()
28    }
29
30    fn struct_with_fields(&self, fields: Vec<PyExpr>) -> PyResult<Self> {
31        let fields = fields.to_exprs();
32        let e = self
33            .inner
34            .clone()
35            .struct_()
36            .with_fields(fields)
37            .map_err(PyPolarsErr::from)?;
38        Ok(e.into())
39    }
40}
polars_python/expr/struct.rs

polars_python/expr/
struct.rs
