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.

       • opts: A bson_t containing additional options or NULL.

       • 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:

       • readConcern:  Construct  a  mongoc_read_concern_t  and  use  mongoc_read_concern_append to add the read
         concern to opts. See the example code for mongoc_client_read_command_with_opts.

       • 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: 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.

       • serverId:  To  target  a  specific  server, include an int32 "serverId" field. Obtain the id by calling
         mongoc_client_select_server, then mongoc_server_description_id on its return value.

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

       • upsert A boolean, when true, creates a new document if no document matches the query.

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  "modifiedCount"  and  "matchedCount".  If  a
       document  was  upserted,  reply  contains  an  "upsertedId"  field. 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().

SEE ALSO

       MongoDB update command documentation for more information on the update options.

       mongoc_collection_update_one

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.

       If provided, reply will be initialized and populated with the  fields  matchedCount,  modifiedCount,  and
       optionally upsertedId if applicable.

AUTHOR

       MongoDB, Inc

COPYRIGHT

       2018, MongoDB, Inc