Struct Row 

pub struct Row { /* private fields */ }

One decoded result row: column names paired with backend-neutral values.

Dynamic projections and annotations decode into Row; models decode from it with Model::from_row.

Implementations

impl Row

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

Build a row from (column, value) pairs.

pub fn get(&self, column: &str) -> Option<&Value>

Look up a value by column name.

pub fn iter(&self) -> impl Iterator<Item = (&str, &Value)>

Iterate over (column, value) pairs in projection order.

pub fn into_columns(self) -> Vec<(String, Value)>

Consume into (column, value) pairs.

pub fn len(&self) -> usize

Number of columns.

pub fn is_empty(&self) -> bool

Whether the row has no columns.

impl Row

pub fn get_as<T: DbType>(&self, column: &str) -> Result<T, QueryError>

Value of column, decoded as T.

Errors

QueryError::Decode if the column is missing or has the wrong type.

pub fn decode_at<T: DbType>(&self, index: usize) -> Result<T, QueryError>

The index-th column, decoded as T.

Errors

QueryError::Decode if there is no such column or it has the wrong type.

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.

impl Default for Row

fn default() -> Row

Returns the “default value” for a type.

impl PartialEq for Row

fn eq(&self, other: &Row) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Row