NAME

       mongoc_collection_update_many - mongoc_collection_update_many()

SYNOPSIS

          bool
          mongoc_collection_update_many (mongoc_collection_t *collection,
                                         const bson_t *selector,
                                         const bson_t *update,
                                         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 documents for updating.

       • update: A bson_t containing the update to perform. If updating with a pipeline, a bson_t
         array.

       • 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: First, construct a mongoc_client_session_t with  mongoc_client_start_session.
         You  can  begin  a  transaction with mongoc_client_session_start_transaction, optionally
         with a mongoc_transaction_opt_t that overrides the options  inherited  from  collection,
         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.

       • hint: A document or string that  specifies  the  index  to  use  to  support  the  query
         predicate.

       • upsert: When true, creates a new document if no document matches the query.

       • arrayFilters:  An  array  of filters specifying to which array elements an update should
         apply.

DESCRIPTION

       This function updates all documents in collection that match selector.

       To update at most one document see mongoc_collection_update_one.

       If you pass a non-NULL reply, it is filled out with fields   matchedCount,  modifiedCount,
       and  optionally  upsertedId  if applicable. 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.

       SEE ALSO:
          MongoDB update command documentation for more information on the update options.

          mongoc_collection_update_one

AUTHOR

       MongoDB, Inc

COPYRIGHT

       2017-present, MongoDB, Inc