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use std::{borrow::Borrow, collections::HashSet, ops::Deref};
use crate::bson::{Bson, RawDocumentBuf};
use serde::Serialize;
use crate::{
coll::options::InsertManyOptions,
error::{Error, ErrorKind, IndexedWriteError, InsertManyError, Result},
operation::Insert as Op,
options::WriteConcern,
results::InsertManyResult,
ClientSession,
Collection,
};
use super::{action_impl, deeplink, export_doc, option_setters, options_doc, CollRef};
impl<T: Serialize + Send + Sync> Collection<T> {
/// Inserts the data in `docs` into the collection.
///
/// Note that this method accepts both owned and borrowed values, so the input documents
/// do not need to be cloned in order to be passed in.
///
/// This operation will retry once upon failure if the connection and encountered error support
/// retryability. See the documentation
/// [here](https://www.mongodb.com/docs/manual/core/retryable-writes/) for more information on
/// retryable writes.
///
/// `await` will return d[`Result<InsertManyResult>`].
#[deeplink]
#[options_doc(insert_many)]
pub fn insert_many(&self, docs: impl IntoIterator<Item = impl Borrow<T>>) -> InsertMany {
InsertMany {
coll: CollRef::new(self),
docs: docs
.into_iter()
.map(|v| {
crate::bson_compat::serialize_to_raw_document_buf(v.borrow())
.map_err(Into::into)
})
.collect(),
options: None,
session: None,
}
}
}
#[cfg(feature = "sync")]
impl<T: Serialize + Send + Sync> crate::sync::Collection<T> {
/// Inserts the data in `docs` into the collection.
///
/// Note that this method accepts both owned and borrowed values, so the input documents
/// do not need to be cloned in order to be passed in.
///
/// This operation will retry once upon failure if the connection and encountered error support
/// retryability. See the documentation
/// [here](https://www.mongodb.com/docs/manual/core/retryable-writes/) for more information on
/// retryable writes.
///
/// [`run`](InsertMany::run) will return d[`Result<InsertManyResult>`].
#[deeplink]
#[options_doc(insert_many, sync)]
pub fn insert_many(&self, docs: impl IntoIterator<Item = impl Borrow<T>>) -> InsertMany {
self.async_collection.insert_many(docs)
}
}
/// Inserts documents into a collection. Construct with [`Collection::insert_many`].
#[must_use]
pub struct InsertMany<'a> {
coll: CollRef<'a>,
docs: Result<Vec<RawDocumentBuf>>,
options: Option<InsertManyOptions>,
session: Option<&'a mut ClientSession>,
}
#[option_setters(crate::coll::options::InsertManyOptions)]
#[export_doc(insert_many)]
impl<'a> InsertMany<'a> {
/// Use the provided session when running the operation.
pub fn session(mut self, value: impl Into<&'a mut ClientSession>) -> Self {
self.session = Some(value.into());
self
}
}
#[action_impl]
impl<'a> Action for InsertMany<'a> {
type Future = InsertManyFuture;
async fn execute(mut self) -> Result<InsertManyResult> {
resolve_write_concern_with_session!(self.coll, self.options, self.session.as_ref())?;
let ds = self.docs?;
if ds.is_empty() {
return Err(ErrorKind::InvalidArgument {
message: "No documents provided to insert_many".to_string(),
}
.into());
}
let ordered = self
.options
.as_ref()
.and_then(|o| o.ordered)
.unwrap_or(true);
let encrypted = self.coll.client().should_auto_encrypt().await;
let mut cumulative_failure: Option<InsertManyError> = None;
let mut error_labels: HashSet<String> = Default::default();
let mut cumulative_result: Option<InsertManyResult> = None;
let mut n_attempted = 0;
while n_attempted < ds.len() {
let docs: Vec<_> = ds.iter().skip(n_attempted).map(Deref::deref).collect();
let insert = Op::new(self.coll.namespace(), docs, self.options.clone(), encrypted);
match self
.coll
.client()
.execute_operation(insert, self.session.as_deref_mut())
.await
{
Ok(result) => {
let current_batch_size = result.inserted_ids.len();
let cumulative_result = cumulative_result.get_or_insert_with(Default::default);
for (index, id) in result.inserted_ids {
cumulative_result
.inserted_ids
.insert(index + n_attempted, id);
}
n_attempted += current_batch_size;
}
Err(e) => {
let labels = e.labels().clone();
match *e.kind {
ErrorKind::InsertMany(bw) => {
// for ordered inserts this size will be incorrect, but knowing the
// batch size isn't needed for ordered
// failures since we return immediately from
// them anyways.
let current_batch_size = bw.inserted_ids.len()
+ bw.write_errors.as_ref().map(|we| we.len()).unwrap_or(0);
let failure_ref =
cumulative_failure.get_or_insert_with(InsertManyError::new);
if let Some(write_errors) = bw.write_errors {
for err in write_errors {
let index = n_attempted + err.index;
failure_ref
.write_errors
.get_or_insert_with(Default::default)
.push(IndexedWriteError { index, ..err });
}
}
if let Some(wc_error) = bw.write_concern_error {
failure_ref.write_concern_error = Some(wc_error);
}
error_labels.extend(labels);
if ordered {
// this will always be true since we invoked get_or_insert_with
// above.
if let Some(failure) = cumulative_failure {
return Err(Error::new(
ErrorKind::InsertMany(failure),
Some(error_labels),
));
}
}
n_attempted += current_batch_size;
}
_ => return Err(e),
}
}
}
}
match cumulative_failure {
Some(failure) => Err(Error::new(
ErrorKind::InsertMany(failure),
Some(error_labels),
)),
None => Ok(cumulative_result.unwrap_or_default()),
}
}
}