Struct Row 

pub struct Row { /* private fields */ }

One row of a query result.

The column names are shared (Arc) across every row of the same result to avoid re-allocating them per row.

Examples

use tork_orm_core::{Row, Value};

let row = Row::new(
    vec!["id".to_string(), "name".to_string()],
    vec![Value::Int(1), Value::Text("alice".to_string())],
);
assert_eq!(row.get::<i64>("id").unwrap(), 1);
assert_eq!(row.get::<String>("name").unwrap(), "alice");

Implementations

impl Row

pub fn new(columns: Vec<String>, values: Vec<Value>) -> Self

Builds a row from column names and their values.

The two slices must have the same length; the names are stored shared so that callers building many rows should reuse the same Arc via Row::with_columns.

pub fn with_columns(columns: Arc<[String]>, values: Vec<Value>) -> Self

Builds a row reusing an already-shared set of column names.

pub fn columns(&self) -> Arc<[String]>

Returns the shared column names, for reuse across sibling rows.

pub fn len(&self) -> usize

Returns the number of columns in this row.

pub fn is_empty(&self) -> bool

Returns true if the row has no columns.

pub fn value_at(&self, index: usize) -> Option<&Value>

Returns the raw value at a column index without conversion.

pub fn index_of(&self, name: &str) -> Option<usize>

Returns the zero-based position of a named column, if present.

pub fn get<T: FromValue>(&self, name: &str) -> Result<T>

Reads the value of a named column into T.

Errors

Returns an error if the column is absent or its value cannot be converted to T.

pub fn get_index<T: FromValue>(&self, index: usize) -> Result<T>

Reads the value at a column index into T.

Errors

Returns an error if the index is out of range or the value cannot be converted to T.

Trait Implementations

impl Clone for Row

fn clone(&self) -> Row

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Row

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.