rocket_db_pools

Struct Initializer

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pub struct Initializer<D: Database>(/* private fields */);
Expand description

A Fairing which initializes a Database and its connection pool.

A value of this type can be created for any type D that implements Database via the Database::init() method on the type. Normally, a value of this type never needs to be constructed directly. This documentation exists purely as a reference.

This fairing initializes a database pool. Specifically, it:

  1. Reads the configuration at database.db_name, where db_name is Database::NAME.

  2. Sets Config defaults on the configuration figment.

  3. Calls Pool::init().

  4. Stores the database instance in managed storage, retrievable via Database::fetch().

The name of the fairing itself is Initializer<D>, with D replaced with the type name D unless a name is explicitly provided via Self::with_name().

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impl<D: Database> Initializer<D>

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pub fn new() -> Self

Returns a database initializer fairing for D.

This method should never need to be called manually. See the crate docs for usage information.

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pub fn with_name(name: &'static str) -> Self

Returns a database initializer fairing for D with name name.

This method should never need to be called manually. See the crate docs for usage information.

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impl<D: Database> Fairing for Initializer<D>

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fn info(&self) -> Info

Returns an Info structure containing the name and Kind of this fairing. The name can be any arbitrary string. Kind must be an ord set of Kind variants. Read more
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fn on_ignite<'life0, 'async_trait>( &'life0 self, rocket: Rocket<Build>, ) -> Pin<Box<dyn Future<Output = Result> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

The ignite callback. Returns Ok if ignition should proceed and Err if ignition and launch should be aborted. Read more
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fn on_shutdown<'life0, 'life1, 'async_trait>( &'life0 self, rocket: &'life1 Rocket<Orbit>, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

The shutdown callback. Read more
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fn on_liftoff<'life0, 'life1, 'async_trait>( &'life0 self, _rocket: &'life1 Rocket<Orbit>, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
where 'life0: 'async_trait, 'life1: 'async_trait, Self: 'async_trait,

The liftoff callback. Read more
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fn on_request<'life0, 'life1, 'life2, 'life3, 'life4, 'async_trait>( &'life0 self, _req: &'life1 mut Request<'life2>, _data: &'life3 mut Data<'life4>, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
where 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait, 'life4: 'async_trait, Self: 'async_trait,

The request callback. Read more
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fn on_response<'r, 'life0, 'life1, 'life2, 'async_trait>( &'life0 self, _req: &'r Request<'life1>, _res: &'life2 mut Response<'r>, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
where 'r: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, Self: 'async_trait,

The response callback. Read more

Auto Trait Implementations§

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impl<D> Freeze for Initializer<D>

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impl<D> RefUnwindSafe for Initializer<D>

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impl<D> Send for Initializer<D>

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impl<D> Sync for Initializer<D>

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impl<D> Unpin for Initializer<D>

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impl<D> UnwindSafe for Initializer<D>

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fn get_result<'query, 'conn, U>( self, conn: &'conn mut Conn, ) -> AndThen<Self::LoadFuture<'conn>, Map<StreamFuture<Pin<Box<Self::Stream<'conn>>>>, fn(_: (Option<Result<U, Error>>, Pin<Box<Self::Stream<'conn>>>)) -> Result<U, Error>>, fn(_: Self::Stream<'conn>) -> Map<StreamFuture<Pin<Box<Self::Stream<'conn>>>>, fn(_: (Option<Result<U, Error>>, Pin<Box<Self::Stream<'conn>>>)) -> Result<U, Error>>>
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Runs the command, and returns the affected row. Read more
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Runs the command, returning an Vec with the affected rows. Read more
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where U: Send + 'conn, Conn: AsyncConnection, Self: LimitDsl, Self::Output: LoadQuery<'query, Conn, U> + Send + 'query,

Attempts to load a single record. Read more
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fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Immutable access to the Borrow<B> of a value. Read more
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fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Mutable access to the BorrowMut<B> of a value. Read more
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fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Immutable access to the AsRef<R> view of a value. Read more
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fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Mutable access to the AsMut<R> view of a value. Read more
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fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Immutable access to the Deref::Target of a value. Read more
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fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Mutable access to the Deref::Target of a value. Read more
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fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.
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fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self

Calls .tap_mut() only in debug builds, and is erased in release builds.
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fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds.
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fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds.
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fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Calls .tap_ref() only in debug builds, and is erased in release builds.
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fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.
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fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.
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fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.
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impl<T> TryConv for T

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fn try_conv<T>(self) -> Result<T, Self::Error>
where Self: TryInto<T>,

Attempts to convert self into T using TryInto<T>. Read more
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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.
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impl<T, U> Upcast<T> for U
where T: UpcastFrom<U>,

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fn upcast(self) -> T

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impl<T, B> UpcastFrom<Counter<T, B>> for T

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fn upcast_from(value: Counter<T, B>) -> T

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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> MaybeSendSync for T