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Migrator

a3s_orm::migration

Struct Migrator 

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pub struct Migrator<B> { /* private fields */ }

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impl<B> Migrator<B>

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pub const fn new(backend: B) -> Self

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pub fn backend(&self) -> &B

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impl<B: MigrationBackend> Migrator<B>

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pub async fn run( &self, migrations: impl IntoIterator<Item = Migration>, ) -> Result<MigrationReport, MigrationRunError<B::Error>>

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impl<B: MigrationLedger> Migrator<B>

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pub async fn verify_required( &self, migrations: impl IntoIterator<Item = Migration>, ) -> Result<(), MigrationRunError<B::Error>>

Verify that every supplied migration is present with its exact checksum, without locking or mutating the database.

Additional database migrations are admitted so an older serving process can run during an expand-compatible rolling upgrade. Callers remain responsible for deciding which schema versions are compatible.

Auto Trait Implementations§

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impl<B> Freeze for Migrator<B>
where B: Freeze,

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impl<B> RefUnwindSafe for Migrator<B>
where B: RefUnwindSafe,

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impl<B> Send for Migrator<B>
where B: Send,

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impl<B> Sync for Migrator<B>
where B: Sync,

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impl<B> Unpin for Migrator<B>
where B: Unpin,

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impl<B> UnsafeUnpin for Migrator<B>
where B: UnsafeUnpin,

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impl<B> UnwindSafe for Migrator<B>
where B: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> SqlComparable<Option<T>> for T

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impl<T> SqlComparable<T> for T

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.