Trait AppearsOnTable

Source

pub trait AppearsOnTable<QS: ?Sized>: Expression { }

Expand description

Indicates that all elements of an expression are valid given a from clause.

This is used to ensure that users.filter(posts::id.eq(1)) fails to compile. This constraint is only used in places where the nullability of a SQL type doesn’t matter (everything except select and returning). For places where nullability is important, SelectableExpression is used instead.

Trait AppearsOnTableCopy item path

Implementations on Foreign Types§

impl<'a, T, QS> AppearsOnTable<QS> for &'a Twhere T: AppearsOnTable<QS> + ?Sized, &'a T: Expression,

impl<A, B, C, D, E, F, G, QS> AppearsOnTable<QS> for (A, B, C, D, E, F, G)where A: AppearsOnTable<QS>, B: AppearsOnTable<QS>, C: AppearsOnTable<QS>, D: AppearsOnTable<QS>, E: AppearsOnTable<QS>, F: AppearsOnTable<QS>, G: AppearsOnTable<QS>, (A, B, C, D, E, F, G): Expression,

impl<A, B, C, D, E, F, QS> AppearsOnTable<QS> for (A, B, C, D, E, F)where A: AppearsOnTable<QS>, B: AppearsOnTable<QS>, C: AppearsOnTable<QS>, D: AppearsOnTable<QS>, E: AppearsOnTable<QS>, F: AppearsOnTable<QS>, (A, B, C, D, E, F): Expression,

impl<A, B, C, D, E, QS> AppearsOnTable<QS> for (A, B, C, D, E)where A: AppearsOnTable<QS>, B: AppearsOnTable<QS>, C: AppearsOnTable<QS>, D: AppearsOnTable<QS>, E: AppearsOnTable<QS>, (A, B, C, D, E): Expression,

impl<A, B, C, D, QS> AppearsOnTable<QS> for (A, B, C, D)where A: AppearsOnTable<QS>, B: AppearsOnTable<QS>, C: AppearsOnTable<QS>, D: AppearsOnTable<QS>, (A, B, C, D): Expression,

impl<A, B, C, QS> AppearsOnTable<QS> for (A, B, C)where A: AppearsOnTable<QS>, B: AppearsOnTable<QS>, C: AppearsOnTable<QS>, (A, B, C): Expression,

impl<A, B, QS> AppearsOnTable<QS> for (A, B)where A: AppearsOnTable<QS>, B: AppearsOnTable<QS>, (A, B): Expression,

impl<A, QS> AppearsOnTable<QS> for (A,)where A: AppearsOnTable<QS>, (A,): Expression,

impl<T, QS> AppearsOnTable<QS> for Box<T>where T: AppearsOnTable<QS> + ?Sized, Box<T>: Expression,

Implementors§

impl<QS> AppearsOnTable<QS> for nowwhere now: Expression,

impl<QS, Query, Value> AppearsOnTable<QS> for UncheckedBind<Query, Value>where Self: Expression,

impl<QS, ST, T> AppearsOnTable<QS> for SqlLiteral<ST, T>

Trait AppearsOnTable

impl<'a, T, QS> AppearsOnTable<QS> for &'a T
where T: AppearsOnTable<QS> + ?Sized, &'a T: Expression,

impl<A, B, C, D, E, F, G, QS> AppearsOnTable<QS> for (A, B, C, D, E, F, G)
where A: AppearsOnTable<QS>, B: AppearsOnTable<QS>, C: AppearsOnTable<QS>, D: AppearsOnTable<QS>, E: AppearsOnTable<QS>, F: AppearsOnTable<QS>, G: AppearsOnTable<QS>, (A, B, C, D, E, F, G): Expression,

impl<A, B, C, D, E, F, QS> AppearsOnTable<QS> for (A, B, C, D, E, F)
where A: AppearsOnTable<QS>, B: AppearsOnTable<QS>, C: AppearsOnTable<QS>, D: AppearsOnTable<QS>, E: AppearsOnTable<QS>, F: AppearsOnTable<QS>, (A, B, C, D, E, F): Expression,

impl<A, B, C, D, E, QS> AppearsOnTable<QS> for (A, B, C, D, E)
where A: AppearsOnTable<QS>, B: AppearsOnTable<QS>, C: AppearsOnTable<QS>, D: AppearsOnTable<QS>, E: AppearsOnTable<QS>, (A, B, C, D, E): Expression,

impl<A, B, C, D, QS> AppearsOnTable<QS> for (A, B, C, D)
where A: AppearsOnTable<QS>, B: AppearsOnTable<QS>, C: AppearsOnTable<QS>, D: AppearsOnTable<QS>, (A, B, C, D): Expression,

impl<A, B, C, QS> AppearsOnTable<QS> for (A, B, C)
where A: AppearsOnTable<QS>, B: AppearsOnTable<QS>, C: AppearsOnTable<QS>, (A, B, C): Expression,

impl<A, B, QS> AppearsOnTable<QS> for (A, B)
where A: AppearsOnTable<QS>, B: AppearsOnTable<QS>, (A, B): Expression,

impl<A, QS> AppearsOnTable<QS> for (A,)
where A: AppearsOnTable<QS>, (A,): Expression,

impl<T, QS> AppearsOnTable<QS> for Box<T>
where T: AppearsOnTable<QS> + ?Sized, Box<T>: Expression,

impl<QS> AppearsOnTable<QS> for now
where now: Expression,

impl<QS, Query, Value> AppearsOnTable<QS> for UncheckedBind<Query, Value>
where Self: Expression,