Struct bonsaidb_core::document::CollectionDocument

pub struct CollectionDocument<C> where
    C: SerializedCollection,  {
    pub header: CollectionHeader<C::PrimaryKey>,
    pub contents: C::Contents,
}

A document with serializable contents.

Fields

header: CollectionHeader<C::PrimaryKey>

The header of the document, which contains the id and Revision.

contents: C::Contents

The document’s contents.

Implementations

impl<C> CollectionDocument<C> where
    C: SerializedCollection, 

pub async fn update<Cn: Connection>(
    &mut self,
    connection: &Cn
) -> Result<(), Error>

Stores the new value of contents in the document.

if let Some(mut document) = MyCollection::get(42, &db).await? {
    // modify the document
    document.update(&db).await?;
    println!("Updated revision: {:?}", document.header.revision);
}

pub async fn modify<Cn: Connection, Modifier: FnMut(&mut Self) + Send + Sync>(
    &mut self,
    connection: &Cn,
    modifier: Modifier
) -> Result<(), Error> where
    C::Contents: Clone, 

Modifies self, automatically retrying the modification if the document has been updated on the server.

Data loss warning

If you’ve modified self before calling this function and a conflict occurs, all changes to self will be lost when the current document is fetched before retrying the process again. When you use this function, you should limit the edits to the value to within the modifier callback.

pub async fn delete<Cn: Connection>(&self, connection: &Cn) -> Result<(), Error>

Removes the document from the collection.

if let Some(document) = MyCollection::get(42, &db).await? {
    document.delete(&db).await?;
}

pub fn to_document(&self) -> Result<OwnedDocument, Error>

Converts this value to a serialized Document.

Trait Implementations

impl<C: Clone> Clone for CollectionDocument<C> where
    C: SerializedCollection,
    C::PrimaryKey: Clone,
    C::Contents: Clone, 

fn clone(&self) -> CollectionDocument<C>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<C: Debug> Debug for CollectionDocument<C> where
    C: SerializedCollection,
    C::PrimaryKey: Debug,
    C::Contents: Debug, 

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

Formats the value using the given formatter.

impl<C> HasHeader for CollectionDocument<C> where
    C: SerializedCollection, 

fn header(&self) -> Result<Header, Error>

Returns the header for this instance.

impl<'a, C> Nameable<'a, <C as Collection>::PrimaryKey> for &'a CollectionDocument<C> where
    C: SerializedCollection, 

fn name(self) -> Result<NamedReference<'a, C::PrimaryKey>, Error>

Returns this name as a NamedReference.

impl<C: PartialEq> PartialEq<CollectionDocument<C>> for CollectionDocument<C> where
    C: SerializedCollection,
    C::PrimaryKey: PartialEq,
    C::Contents: PartialEq, 

fn eq(&self, other: &CollectionDocument<C>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &CollectionDocument<C>) -> bool

This method tests for !=.

impl<'a, C> TryFrom<&'a BorrowedDocument<'a>> for CollectionDocument<C> where
    C: SerializedCollection, 

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: &'a BorrowedDocument<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a, C> TryFrom<&'a OwnedDocument> for CollectionDocument<C> where
    C: SerializedCollection, 

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: &'a OwnedDocument) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a, 'b, C> TryFrom<&'b CollectionDocument<C>> for BorrowedDocument<'a> where
    C: SerializedCollection, 

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: &'b CollectionDocument<C>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a, 'c, C> TryFrom<&'c CollectionDocument<C>> for NamedReference<'a, C::PrimaryKey> where
    C: SerializedCollection, 

type Error = Error

The type returned in the event of a conversion error.

fn try_from(doc: &'c CollectionDocument<C>) -> Result<Self, Error>

Performs the conversion.

impl<C: Eq> Eq for CollectionDocument<C> where
    C: SerializedCollection,
    C::PrimaryKey: Eq,
    C::Contents: Eq, 

impl<C> StructuralEq for CollectionDocument<C> where
    C: SerializedCollection, 

impl<C> StructuralPartialEq for CollectionDocument<C> where
    C: SerializedCollection,