Trait diesel::query_builder::AsChangeset

pub trait AsChangeset {
    type Target: QuerySource;
    type Changeset;
    fn as_changeset(self) -> Self::Changeset;
}

Types which can be passed to update.set.

Deriving

This trait can be automatically derived using by adding #[derive(AsChangeset)] to your struct. Structs which derive this trait must be annotated with #[table_name = "something"]. If the field name of your struct differs from the name of the column, you can annotate the field with #[column_name = "some_column_name"].

By default, any Option fields on the struct are skipped if their value is None. If you would like to assign NULL to the field instead, you can annotate your struct with #[changeset_options(treat_none_as_null = "true")].

Associated Types

type Target: QuerySource

The table which Self::Changeset will be updating

type Changeset

The update statement this type represents

Required Methods

fn as_changeset(self) -> Self::Changeset

Convert self into the actual update statement being executed

Implementations on Foreign Types

impl<T: AsChangeset> AsChangeset for Option<T>

type Target = T::Target

type Changeset = Option<T::Changeset>

fn as_changeset(self) -> Self::Changeset

impl<Target, A> AsChangeset for (A,) where
    A: AsChangeset<Target = Target>,
    Target: QuerySource, 

type Target = Target

type Changeset = (A::Changeset,)

fn as_changeset(self) -> Self::Changeset

impl<Target, A, B> AsChangeset for (A, B) where
    A: AsChangeset<Target = Target>,
    B: AsChangeset<Target = Target>,
    Target: QuerySource, 

type Target = Target

type Changeset = (A::Changeset, B::Changeset)

fn as_changeset(self) -> Self::Changeset

impl<Target, A, B, C> AsChangeset for (A, B, C) where
    A: AsChangeset<Target = Target>,
    B: AsChangeset<Target = Target>,
    C: AsChangeset<Target = Target>,
    Target: QuerySource, 

type Target = Target

type Changeset = (A::Changeset, B::Changeset, C::Changeset)

fn as_changeset(self) -> Self::Changeset

impl<Target, A, B, C, D> AsChangeset for (A, B, C, D) where
    A: AsChangeset<Target = Target>,
    B: AsChangeset<Target = Target>,
    C: AsChangeset<Target = Target>,
    D: AsChangeset<Target = Target>,
    Target: QuerySource, 

type Target = Target

type Changeset = (A::Changeset, B::Changeset, C::Changeset, D::Changeset)

fn as_changeset(self) -> Self::Changeset

impl<Target, A, B, C, D, E> AsChangeset for (A, B, C, D, E) where
    A: AsChangeset<Target = Target>,
    B: AsChangeset<Target = Target>,
    C: AsChangeset<Target = Target>,
    D: AsChangeset<Target = Target>,
    E: AsChangeset<Target = Target>,
    Target: QuerySource, 

type Target = Target

type Changeset = (A::Changeset, B::Changeset, C::Changeset, D::Changeset, E::Changeset)

fn as_changeset(self) -> Self::Changeset

impl<Target, A, B, C, D, E, F> AsChangeset for (A, B, C, D, E, F) where
    A: AsChangeset<Target = Target>,
    B: AsChangeset<Target = Target>,
    C: AsChangeset<Target = Target>,
    D: AsChangeset<Target = Target>,
    E: AsChangeset<Target = Target>,
    F: AsChangeset<Target = Target>,
    Target: QuerySource, 

type Target = Target

type Changeset = (A::Changeset, B::Changeset, C::Changeset, D::Changeset, E::Changeset, F::Changeset)

fn as_changeset(self) -> Self::Changeset

impl<Target, A, B, C, D, E, F, G> AsChangeset for (A, B, C, D, E, F, G) where
    A: AsChangeset<Target = Target>,
    B: AsChangeset<Target = Target>,
    C: AsChangeset<Target = Target>,
    D: AsChangeset<Target = Target>,
    E: AsChangeset<Target = Target>,
    F: AsChangeset<Target = Target>,
    G: AsChangeset<Target = Target>,
    Target: QuerySource, 

type Target = Target

type Changeset = (A::Changeset, B::Changeset, C::Changeset, D::Changeset, E::Changeset, F::Changeset, G::Changeset)

fn as_changeset(self) -> Self::Changeset

impl<Target, A, B, C, D, E, F, G, H> AsChangeset for (A, B, C, D, E, F, G, H) where
    A: AsChangeset<Target = Target>,
    B: AsChangeset<Target = Target>,
    C: AsChangeset<Target = Target>,
    D: AsChangeset<Target = Target>,
    E: AsChangeset<Target = Target>,
    F: AsChangeset<Target = Target>,
    G: AsChangeset<Target = Target>,
    H: AsChangeset<Target = Target>,
    Target: QuerySource, 

type Target = Target

type Changeset = (A::Changeset, B::Changeset, C::Changeset, D::Changeset, E::Changeset, F::Changeset, G::Changeset, H::Changeset)

fn as_changeset(self) -> Self::Changeset

impl<Target, A, B, C, D, E, F, G, H, I> AsChangeset for (A, B, C, D, E, F, G, H, I) where
    A: AsChangeset<Target = Target>,
    B: AsChangeset<Target = Target>,
    C: AsChangeset<Target = Target>,
    D: AsChangeset<Target = Target>,
    E: AsChangeset<Target = Target>,
    F: AsChangeset<Target = Target>,
    G: AsChangeset<Target = Target>,
    H: AsChangeset<Target = Target>,
    I: AsChangeset<Target = Target>,
    Target: QuerySource, 

type Target = Target

type Changeset = (A::Changeset, B::Changeset, C::Changeset, D::Changeset, E::Changeset, F::Changeset, G::Changeset, H::Changeset, I::Changeset)

fn as_changeset(self) -> Self::Changeset

impl<Target, A, B, C, D, E, F, G, H, I, J> AsChangeset for (A, B, C, D, E, F, G, H, I, J) where
    A: AsChangeset<Target = Target>,
    B: AsChangeset<Target = Target>,
    C: AsChangeset<Target = Target>,
    D: AsChangeset<Target = Target>,
    E: AsChangeset<Target = Target>,
    F: AsChangeset<Target = Target>,
    G: AsChangeset<Target = Target>,
    H: AsChangeset<Target = Target>,
    I: AsChangeset<Target = Target>,
    J: AsChangeset<Target = Target>,
    Target: QuerySource, 

type Target = Target

type Changeset = (A::Changeset, B::Changeset, C::Changeset, D::Changeset, E::Changeset, F::Changeset, G::Changeset, H::Changeset, I::Changeset, J::Changeset)

fn as_changeset(self) -> Self::Changeset

impl<Target, A, B, C, D, E, F, G, H, I, J, K> AsChangeset for (A, B, C, D, E, F, G, H, I, J, K) where
    A: AsChangeset<Target = Target>,
    B: AsChangeset<Target = Target>,
    C: AsChangeset<Target = Target>,
    D: AsChangeset<Target = Target>,
    E: AsChangeset<Target = Target>,
    F: AsChangeset<Target = Target>,
    G: AsChangeset<Target = Target>,
    H: AsChangeset<Target = Target>,
    I: AsChangeset<Target = Target>,
    J: AsChangeset<Target = Target>,
    K: AsChangeset<Target = Target>,
    Target: QuerySource, 

type Target = Target

type Changeset = (A::Changeset, B::Changeset, C::Changeset, D::Changeset, E::Changeset, F::Changeset, G::Changeset, H::Changeset, I::Changeset, J::Changeset, K::Changeset)

fn as_changeset(self) -> Self::Changeset

impl<Target, A, B, C, D, E, F, G, H, I, J, K, L> AsChangeset for (A, B, C, D, E, F, G, H, I, J, K, L) where
    A: AsChangeset<Target = Target>,
    B: AsChangeset<Target = Target>,
    C: AsChangeset<Target = Target>,
    D: AsChangeset<Target = Target>,
    E: AsChangeset<Target = Target>,
    F: AsChangeset<Target = Target>,
    G: AsChangeset<Target = Target>,
    H: AsChangeset<Target = Target>,
    I: AsChangeset<Target = Target>,
    J: AsChangeset<Target = Target>,
    K: AsChangeset<Target = Target>,
    L: AsChangeset<Target = Target>,
    Target: QuerySource, 

type Target = Target

type Changeset = (A::Changeset, B::Changeset, C::Changeset, D::Changeset, E::Changeset, F::Changeset, G::Changeset, H::Changeset, I::Changeset, J::Changeset, K::Changeset, L::Changeset)

fn as_changeset(self) -> Self::Changeset

impl<Target, A, B, C, D, E, F, G, H, I, J, K, L, M> AsChangeset for (A, B, C, D, E, F, G, H, I, J, K, L, M) where
    A: AsChangeset<Target = Target>,
    B: AsChangeset<Target = Target>,
    C: AsChangeset<Target = Target>,
    D: AsChangeset<Target = Target>,
    E: AsChangeset<Target = Target>,
    F: AsChangeset<Target = Target>,
    G: AsChangeset<Target = Target>,
    H: AsChangeset<Target = Target>,
    I: AsChangeset<Target = Target>,
    J: AsChangeset<Target = Target>,
    K: AsChangeset<Target = Target>,
    L: AsChangeset<Target = Target>,
    M: AsChangeset<Target = Target>,
    Target: QuerySource, 

type Target = Target

type Changeset = (A::Changeset, B::Changeset, C::Changeset, D::Changeset, E::Changeset, F::Changeset, G::Changeset, H::Changeset, I::Changeset, J::Changeset, K::Changeset, L::Changeset, M::Changeset)

fn as_changeset(self) -> Self::Changeset

impl<Target, A, B, C, D, E, F, G, H, I, J, K, L, M, N> AsChangeset for (A, B, C, D, E, F, G, H, I, J, K, L, M, N) where
    A: AsChangeset<Target = Target>,
    B: AsChangeset<Target = Target>,
    C: AsChangeset<Target = Target>,
    D: AsChangeset<Target = Target>,
    E: AsChangeset<Target = Target>,
    F: AsChangeset<Target = Target>,
    G: AsChangeset<Target = Target>,
    H: AsChangeset<Target = Target>,
    I: AsChangeset<Target = Target>,
    J: AsChangeset<Target = Target>,
    K: AsChangeset<Target = Target>,
    L: AsChangeset<Target = Target>,
    M: AsChangeset<Target = Target>,
    N: AsChangeset<Target = Target>,
    Target: QuerySource, 

type Target = Target

type Changeset = (A::Changeset, B::Changeset, C::Changeset, D::Changeset, E::Changeset, F::Changeset, G::Changeset, H::Changeset, I::Changeset, J::Changeset, K::Changeset, L::Changeset, M::Changeset, N::Changeset)

fn as_changeset(self) -> Self::Changeset

impl<Target, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O> AsChangeset for (A, B, C, D, E, F, G, H, I, J, K, L, M, N, O) where
    A: AsChangeset<Target = Target>,
    B: AsChangeset<Target = Target>,
    C: AsChangeset<Target = Target>,
    D: AsChangeset<Target = Target>,
    E: AsChangeset<Target = Target>,
    F: AsChangeset<Target = Target>,
    G: AsChangeset<Target = Target>,
    H: AsChangeset<Target = Target>,
    I: AsChangeset<Target = Target>,
    J: AsChangeset<Target = Target>,
    K: AsChangeset<Target = Target>,
    L: AsChangeset<Target = Target>,
    M: AsChangeset<Target = Target>,
    N: AsChangeset<Target = Target>,
    O: AsChangeset<Target = Target>,
    Target: QuerySource, 

type Target = Target

type Changeset = (A::Changeset, B::Changeset, C::Changeset, D::Changeset, E::Changeset, F::Changeset, G::Changeset, H::Changeset, I::Changeset, J::Changeset, K::Changeset, L::Changeset, M::Changeset, N::Changeset, O::Changeset)

fn as_changeset(self) -> Self::Changeset

impl<Target, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P> AsChangeset for (A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P) where
    A: AsChangeset<Target = Target>,
    B: AsChangeset<Target = Target>,
    C: AsChangeset<Target = Target>,
    D: AsChangeset<Target = Target>,
    E: AsChangeset<Target = Target>,
    F: AsChangeset<Target = Target>,
    G: AsChangeset<Target = Target>,
    H: AsChangeset<Target = Target>,
    I: AsChangeset<Target = Target>,
    J: AsChangeset<Target = Target>,
    K: AsChangeset<Target = Target>,
    L: AsChangeset<Target = Target>,
    M: AsChangeset<Target = Target>,
    N: AsChangeset<Target = Target>,
    O: AsChangeset<Target = Target>,
    P: AsChangeset<Target = Target>,
    Target: QuerySource, 

type Target = Target

type Changeset = (A::Changeset, B::Changeset, C::Changeset, D::Changeset, E::Changeset, F::Changeset, G::Changeset, H::Changeset, I::Changeset, J::Changeset, K::Changeset, L::Changeset, M::Changeset, N::Changeset, O::Changeset, P::Changeset)

fn as_changeset(self) -> Self::Changeset

Implementors