Struct sea_orm::Selector

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pub struct Selector<S> where
    S: SelectorTrait, { /* private fields */ }

Expand description

Defines a type to do SELECT operations through a SelectStatement on a Model

Implementations

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impl<S> Selector<S> where
S: SelectorTrait,

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pub fn with_columns<T, C>(
 query: SelectStatement
) -> Selector<SelectGetableValue<T, C>> where
 T: TryGetableMany,
 C: IntoEnumIterator + Iden,

Create Selector from Statment and columns. Executing this Selector will return a type T which implement TryGetableMany.

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pub async fn one<'a, C>(self, db: &C) -> Result<Option<S::Item>, DbErr> where
C: ConnectionTrait,

Get an item from the Select query

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pub async fn all<'a, C>(self, db: &C) -> Result<Vec<S::Item>, DbErr> where
C: ConnectionTrait,

Get all items from the Select query

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pub async fn stream<'a: 'b, 'b, C>(
 self,
 db: &'a C
) -> Result<Pin<Box<dyn Stream<Item = Result<S::Item, DbErr>> + Send + 'b>>, DbErr> where
 C: ConnectionTrait + StreamTrait<'a> + Send,
 S: 'b,
 S::Item: Send,

Stream the results of the Select operation

Trait Implementations

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impl<S: Clone> Clone for Selector<S> where
S: SelectorTrait,

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fn clone(&self) -> Selector<S>

Returns a copy of the value. Read more

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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl<S: Debug> Debug for Selector<S> where
S: SelectorTrait,

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

Formats the value using the given formatter. Read more

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impl<'db, C, S> PaginatorTrait<'db, C> for Selector<S> where
C: ConnectionTrait,
S: SelectorTrait + Send + Sync + 'db,

type Selector = S

Select operation

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fn paginate(self, db: &'db C, page_size: usize) -> Paginator<'db, C, S>

Paginate the result of a select operation.

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fn count<'async_trait>(
 self,
 db: &'db C
) -> Pin<Box<dyn Future<Output = Result<usize, DbErr>> + Send + 'async_trait>> where
 Self: Send + Sized,
 'db: 'async_trait,
 Self: Send + 'async_trait,

Perform a count on the paginated results

Auto Trait Implementations

impl<S> !RefUnwindSafe for Selector<S>

impl<S> Send for Selector<S> where
S: Send,

impl<S> Sync for Selector<S> where
S: Sync,

impl<S> Unpin for Selector<S> where
S: Unpin,

impl<S> !UnwindSafe for Selector<S>

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,

const: unstable · source

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,

const: unstable · source

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

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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

const: unstable · 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.

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impl<T> Same<T> for T

type Output = T

Should always be Self

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

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

Struct sea_orm::Selector

Implementations

impl<S> Selector<S> where S: SelectorTrait,

pub fn with_columns<T, C>( query: SelectStatement) -> Selector<SelectGetableValue<T, C>> where T: TryGetableMany, C: IntoEnumIterator + Iden,

pub async fn one<'a, C>(self, db: &C) -> Result<Option<S::Item>, DbErr> where C: ConnectionTrait,

pub async fn all<'a, C>(self, db: &C) -> Result<Vec<S::Item>, DbErr> where C: ConnectionTrait,

pub async fn stream<'a: 'b, 'b, C>( self, db: &'a C) -> Result<Pin<Box<dyn Stream<Item = Result<S::Item, DbErr>> + Send + 'b>>, DbErr> where C: ConnectionTrait + StreamTrait<'a> + Send, S: 'b, S::Item: Send,

Trait Implementations

impl<S: Clone> Clone for Selector<S> where S: SelectorTrait,

fn clone(&self) -> Selector<S>

fn clone_from(&mut self, source: &Self)

impl<S: Debug> Debug for Selector<S> where S: SelectorTrait,

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

impl<'db, C, S> PaginatorTrait<'db, C> for Selector<S> where C: ConnectionTrait, S: SelectorTrait + Send + Sync + 'db,

type Selector = S

fn paginate(self, db: &'db C, page_size: usize) -> Paginator<'db, C, S>

fn count<'async_trait>( self, db: &'db C) -> Pin<Box<dyn Future<Output = Result<usize, DbErr>> + Send + 'async_trait>> where Self: Send + Sized, 'db: 'async_trait, Self: Send + 'async_trait,

Auto Trait Implementations

impl<S> !RefUnwindSafe for Selector<S>

impl<S> Send for Selector<S> where S: Send,

impl<S> Sync for Selector<S> where S: Sync,

impl<S> Unpin for Selector<S> where S: Unpin,

impl<S> !UnwindSafe for Selector<S>

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

fn in_current_span(self) -> Instrumented<Self>

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

fn into(self) -> U

impl<T> Same<T> for T

type Output = T

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

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

type Error = Infallible

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

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

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

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

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

fn vzip(self) -> V

impl<T> WithSubscriber for T

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

fn with_current_subscriber(self) -> WithDispatch<Self>

impl<S> Selector<S> where
S: SelectorTrait,

pub fn with_columns<T, C>(
query: SelectStatement
) -> Selector<SelectGetableValue<T, C>> where
T: TryGetableMany,
C: IntoEnumIterator + Iden,

pub async fn one<'a, C>(self, db: &C) -> Result<Option<S::Item>, DbErr> where
C: ConnectionTrait,

pub async fn all<'a, C>(self, db: &C) -> Result<Vec<S::Item>, DbErr> where
C: ConnectionTrait,

pub async fn stream<'a: 'b, 'b, C>(
self,
db: &'a C
) -> Result<Pin<Box<dyn Stream<Item = Result<S::Item, DbErr>> + Send + 'b>>, DbErr> where
C: ConnectionTrait + StreamTrait<'a> + Send,
S: 'b,
S::Item: Send,

impl<S: Clone> Clone for Selector<S> where
S: SelectorTrait,

impl<S: Debug> Debug for Selector<S> where
S: SelectorTrait,

impl<'db, C, S> PaginatorTrait<'db, C> for Selector<S> where
C: ConnectionTrait,
S: SelectorTrait + Send + Sync + 'db,

fn count<'async_trait>(
self,
db: &'db C
) -> Pin<Box<dyn Future<Output = Result<usize, DbErr>> + Send + 'async_trait>> where
Self: Send + Sized,
'db: 'async_trait,
Self: Send + 'async_trait,

impl<S> Send for Selector<S> where
S: Send,

impl<S> Sync for Selector<S> where
S: Sync,

impl<S> Unpin for Selector<S> where
S: Unpin,

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

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

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

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

impl<T> ToOwned for T where
T: Clone,

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

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

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

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