Trait Selectable 

pub trait Selectable<T: Table> {
    // Required method
    fn column_names() -> &'static [&'static str];
}

Trait for selecting specific columns from a table.

Implemented for tuples of column types to enable type-safe SELECT queries.

Required Methods

fn column_names() -> &'static [&'static str]

Returns the column names to select.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<T: Table, C0: Column<Table = T>> Selectable<T> for (C0,)

fn column_names() -> &'static [&'static str]

impl<T: Table, C0: Column<Table = T>, C1: Column<Table = T>> Selectable<T> for (C0, C1)

fn column_names() -> &'static [&'static str]

impl<T: Table, C0: Column<Table = T>, C1: Column<Table = T>, C2: Column<Table = T>> Selectable<T> for (C0, C1, C2)

fn column_names() -> &'static [&'static str]

impl<T: Table, C0: Column<Table = T>, C1: Column<Table = T>, C2: Column<Table = T>, C3: Column<Table = T>> Selectable<T> for (C0, C1, C2, C3)

fn column_names() -> &'static [&'static str]

impl<T: Table, C0: Column<Table = T>, C1: Column<Table = T>, C2: Column<Table = T>, C3: Column<Table = T>, C4: Column<Table = T>> Selectable<T> for (C0, C1, C2, C3, C4)

fn column_names() -> &'static [&'static str]

impl<T: Table, C0: Column<Table = T>, C1: Column<Table = T>, C2: Column<Table = T>, C3: Column<Table = T>, C4: Column<Table = T>, C5: Column<Table = T>> Selectable<T> for (C0, C1, C2, C3, C4, C5)

fn column_names() -> &'static [&'static str]

impl<T: Table, C0: Column<Table = T>, C1: Column<Table = T>, C2: Column<Table = T>, C3: Column<Table = T>, C4: Column<Table = T>, C5: Column<Table = T>, C6: Column<Table = T>> Selectable<T> for (C0, C1, C2, C3, C4, C5, C6)

fn column_names() -> &'static [&'static str]

impl<T: Table, C0: Column<Table = T>, C1: Column<Table = T>, C2: Column<Table = T>, C3: Column<Table = T>, C4: Column<Table = T>, C5: Column<Table = T>, C6: Column<Table = T>, C7: Column<Table = T>> Selectable<T> for (C0, C1, C2, C3, C4, C5, C6, C7)

fn column_names() -> &'static [&'static str]

impl<T: Table, C0: Column<Table = T>, C1: Column<Table = T>, C2: Column<Table = T>, C3: Column<Table = T>, C4: Column<Table = T>, C5: Column<Table = T>, C6: Column<Table = T>, C7: Column<Table = T>, C8: Column<Table = T>> Selectable<T> for (C0, C1, C2, C3, C4, C5, C6, C7, C8)

fn column_names() -> &'static [&'static str]

impl<T: Table, C0: Column<Table = T>, C1: Column<Table = T>, C2: Column<Table = T>, C3: Column<Table = T>, C4: Column<Table = T>, C5: Column<Table = T>, C6: Column<Table = T>, C7: Column<Table = T>, C8: Column<Table = T>, C9: Column<Table = T>> Selectable<T> for (C0, C1, C2, C3, C4, C5, C6, C7, C8, C9)

fn column_names() -> &'static [&'static str]

impl<T: Table, C0: Column<Table = T>, C1: Column<Table = T>, C2: Column<Table = T>, C3: Column<Table = T>, C4: Column<Table = T>, C5: Column<Table = T>, C6: Column<Table = T>, C7: Column<Table = T>, C8: Column<Table = T>, C9: Column<Table = T>, C10: Column<Table = T>> Selectable<T> for (C0, C1, C2, C3, C4, C5, C6, C7, C8, C9, C10)

fn column_names() -> &'static [&'static str]

impl<T: Table, C0: Column<Table = T>, C1: Column<Table = T>, C2: Column<Table = T>, C3: Column<Table = T>, C4: Column<Table = T>, C5: Column<Table = T>, C6: Column<Table = T>, C7: Column<Table = T>, C8: Column<Table = T>, C9: Column<Table = T>, C10: Column<Table = T>, C11: Column<Table = T>> Selectable<T> for (C0, C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11)

fn column_names() -> &'static [&'static str]

Implementors

impl<T: Table, C: Column<Table = T>> Selectable<T> for C