mongoc_collection_replace_one()¶

Synopsis¶

bool
mongoc_collection_replace_one (mongoc_collection_t *collection,
                               const bson_t *selector,
                               const bson_t *replacement,
                               const bson_t *opts,
                               bson_t *reply,
                               bson_error_t *error);

Parameters¶

collection: A mongoc_collection_t.
selector: A bson_t containing the query to match the document for updating.
replacement: A bson_t containing the replacement document.
reply: Optional. An uninitialized bson_t populated with the update result, or NULL.
error: An optional location for a bson_error_t or NULL.

opts may be NULL or a BSON document with additional command options:

writeConcern: Construct a mongoc_write_concern_t and use mongoc_write_concern_append() to add the write concern to opts. See the example code for mongoc_client_write_command_with_opts().
sessionId: Construct a mongoc_client_session_t with mongoc_client_start_session() and use mongoc_client_session_append() to add the session to opts. See the example code for mongoc_client_session_t.
validate: Construct a bitwise-or of all desired bson_validate_flags_t. Set to false to skip client-side validation of the provided BSON documents.
bypassDocumentValidation: Set to true to skip server-side schema validation of the provided BSON documents.
collation: Configure textual comparisons. See Setting Collation Order, and the MongoDB Manual entry on Collation. Collation requires MongoDB 3.2 or later, otherwise an error is returned.
upsert: When true, creates a new document if no document matches the query.

Description¶

This function shall replace documents in collection that match selector with replacement.

If you pass a non-NULL reply, it is filled out with fields “modifiedCount” and “matchedCount”. If there is a server error then reply contains either a “writeErrors” array with one subdocument or a “writeConcernErrors” array. The reply must be freed with bson_destroy().

Errors¶

Errors are propagated via the error parameter.

Returns¶

Returns true if successful. Returns false and sets error if there are invalid arguments or a server or network error.

A write concern timeout or write concern error is considered a failure.