Struct OneAttachment 

pub struct OneAttachment { /* private fields */ }

Represents a has_one_attached relation.

Implementations

impl OneAttachment

pub fn new( record_type: impl Into<String>, record_id: impl Into<String>, name: impl Into<String>, ) -> Self

Creates an empty one-to-one attachment relation.

pub fn attach(&mut self, blob: Blob) -> Result<&Attachment, AttachmentError>

Attaches a blob, replacing any existing attachment.

Errors

Returns an error when the attachment cannot be built.

pub fn is_attached(&self) -> bool

Returns whether a blob is currently attached.

pub fn attachment(&self) -> Option<&Attachment>

Returns the current attachment, if any.

pub fn detach(&mut self) -> Option<Attachment>

Removes the current attachment and returns it.

pub async fn purge<S: StorageService + ?Sized>( &mut self, service: &S, ) -> Result<Option<Attachment>, AttachmentError>

Purges the current attachment from storage and detaches it.

Errors

Returns an error when the storage service delete fails.

pub fn purge_sync<S: StorageService + ?Sized>( &mut self, service: &S, ) -> Result<Option<Attachment>, AttachmentError>

Purges the current attachment from storage and detaches it using the thread-local runtime.

Errors

Returns an error when the storage service delete fails.

Trait Implementations

impl Clone for OneAttachment

fn clone(&self) -> OneAttachment

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OneAttachment

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

Formats the value using the given formatter.