rocket_contrib::databases

Enum DbError

Source 
pub enum DbError<T> {
    Custom(T),
    PoolError(Error),
}
Expand description

A wrapper around r2d2::Errors or a custom database error type.

This type is only relevant to implementors of the Poolable trait. See the Poolable documentation for more information on how to use this type.

Variants§

§

Custom(T)

The custom error type to wrap alongside r2d2::Error.

§

PoolError(Error)

The error returned by an r2d2 pool.

Trait Implementations§

Source§

impl<T: Debug> Debug for DbError<T>

Source§

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

§

impl<T> Freeze for DbError<T>
where T: Freeze,

§

impl<T> RefUnwindSafe for DbError<T>
where T: RefUnwindSafe,

§

impl<T> Send for DbError<T>
where T: Send,

§

impl<T> Sync for DbError<T>
where T: Sync,

§

impl<T> Unpin for DbError<T>
where T: Unpin,

§

impl<T> UnwindSafe for DbError<T>
where T: UnwindSafe,

Blanket Implementations§

Source§

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

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T, I> AsResult<T, I> for T
where I: Input,

Source§

fn as_result(self) -> Result<T, ParseErr<I>>

Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

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

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

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

Source§

fn into(self) -> U

Calls U::from(self).

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

§

impl<T> IntoCollection<T> for T

§

fn into_collection<A>(self) -> SmallVec<A>
where A: Array<Item = T>,

Converts self into a collection.
§

fn mapped<U, F, A>(self, f: F) -> SmallVec<A>
where F: FnMut(T) -> U, A: Array<Item = U>,

Source§

impl<T> IntoSql for T

Source§

fn into_sql<T>(self) -> Self::Expression
where Self: Sized + AsExpression<T>,

Convert self to an expression for Diesel’s query builder. Read more
Source§

fn as_sql<'a, T>(&'a self) -> <&'a Self as AsExpression<T>>::Expression
where &'a Self: AsExpression<T>,

Convert &self to an expression for Diesel’s query builder. Read more
Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
Source§

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

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

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

Source§

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

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
Source§

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

Source§

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

Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Err>

Source§

impl<T> Typeable for T
where T: Any,

Source§

fn get_type(&self) -> TypeId

Get the TypeId of this object.
Source§

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

Source§

fn vzip(self) -> V