Struct mongod::query::Update [−][src]
A querier to update documents in a MongoDB collection.
Examples
Updates some documents in a collection.
#[derive(Bson, Mongo)] #[mongo(collection="users", field, filter, update)] pub struct User { name: String, age: Option<u32>, email: Option<String>, } use mongod::{AsFilter, Comparator, AsUpdate}; let client = mongod::Client::new(); let mut filter = User::filter(); filter.name = Some(Comparator::Eq("foo".to_owned())); let mut update = User::update(); update.name = Some("bar".to_owned()); let updates = mongod::Updates { set: Some(update), ..Default::default() }; let updated = mongod::query::Update::<User>::new() .filter(filter) .unwrap() .query(&client, updates) .await .unwrap(); println!("updated {} documents", updated);
Implementations
impl<C: Collection> Update<C>
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pub fn new() -> Self
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Constructs an Update
querier.
pub fn array_filters(self, filters: Vec<Document>) -> Self
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An array of filters specifying to which array elements an update should apply.
pub fn bypass_document_validation(self, enable: bool) -> Self
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Opt out of document-level validation.
pub fn collation(self, collation: Collation) -> Self
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The collation to use for the operation.
Collation allows users to specify language-specific rules for string comparison, such as rules for lettercase and accent marks.
pub fn filter<F>(self, filter: F) -> Result<Self, Error> where
C: AsFilter<F>,
F: Filter,
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C: AsFilter<F>,
F: Filter,
The filter to use for the operation.
Errors
This method errors if the filter could not be converted into a BSON Document
.
pub fn hint(self, value: Hint) -> Self
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A document or string that specifies the index to use to support the query predicate.
pub fn many(self, enable: bool) -> Self
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Enable update many for this operation.
Removes all documents that match the filter from a collection.
pub fn upsert(self, enable: bool) -> Self
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Insert a document if no matching document is found.
pub fn write_concern(self, concern: WriteConcern) -> Self
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The write concern for the operation.
pub async fn query<U>(
self,
client: &Client,
updates: Updates<U>
) -> Result<i64, Error> where
C: AsUpdate<U>,
U: Update,
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self,
client: &Client,
updates: Updates<U>
) -> Result<i64, Error> where
C: AsUpdate<U>,
U: Update,
Query the database with this querier.
Errors
This method fails if:
- the updates could not be converted into a BSON
Document
. - the mongodb encountered an error.
pub fn blocking<U>(
self,
client: &Client,
updates: Updates<U>
) -> Result<i64, Error> where
C: AsUpdate<U>,
U: Update,
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self,
client: &Client,
updates: Updates<U>
) -> Result<i64, Error> where
C: AsUpdate<U>,
U: Update,
Trait Implementations
impl<C: Clone + Collection> Clone for Update<C>
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impl<C: Collection> Default for Update<C>
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Auto Trait Implementations
impl<C> RefUnwindSafe for Update<C> where
C: RefUnwindSafe,
C: RefUnwindSafe,
impl<C> Send for Update<C> where
C: Send,
C: Send,
impl<C> Sync for Update<C> where
C: Sync,
C: Sync,
impl<C> Unpin for Update<C> where
C: Unpin,
C: Unpin,
impl<C> UnwindSafe for Update<C> where
C: UnwindSafe,
C: UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T> Instrument for T
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pub fn instrument(self, span: Span) -> Instrumented<Self>
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pub fn in_current_span(self) -> Instrumented<Self>
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> Same<T> for T
type Output = T
Should always be Self
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,