Trait diesel::row::Row

pub trait Row<'a, DB: Backend>: RowIndex<usize> + for<'b> RowIndex<&'b str> + for<'b> RowGatWorkaround<'b, DB> + Sized {
    fn field_count(&self) -> usize;
    fn get<'b, I>(&'b self, idx: I) -> Option<FieldRet<'b, Self, DB>>
    where
        Self: RowIndex<I>,
        'a: 'b;

    fn get_value<ST, T, I>(&self, idx: I) -> Result<T>
    where
        Self: RowIndex<I>,
        T: FromSql<ST, DB>,
    { ... }
}

Represents a single database row.

This trait is used as an argument to FromSqlRow.

Required Methods

fn field_count(&self) -> usize

Get the number of fields in the current row

fn get<'b, I>(&'b self, idx: I) -> Option<FieldRet<'b, Self, DB>>where
    Self: RowIndex<I>,
    'a: 'b,

Get the field with the provided index from the row.

Returns None if there is no matching field for the given index

Provided Methods

fn get_value<ST, T, I>(&self, idx: I) -> Result<T>where
    Self: RowIndex<I>,
    T: FromSql<ST, DB>,

Get a deserialized value with the provided index from the row.

Implementors