mongoc_collection_update()
Synopsis
bool
mongoc_collection_update (mongoc_collection_t          *collection,
                          mongoc_update_flags_t         flags,
                          const bson_t                 *selector,
                          const bson_t                 *update,
                          const mongoc_write_concern_t *write_concern,
                          bson_error_t                 *error);Parameters
| collection | |
| flags | A bitwise or of mongoc_update_flags_t. | 
| selector | A bson_t containing the query to match documents for updating. | 
| update | A bson_t containing the update to perform. | 
| write_concern | |
| error | An optional location for a bson_error_t or NULL. | 
Description
This function shall update documents in collection that match selector.
By default, updates only a single document. Set flags to MONGOC_UPDATE_MULTI_UPDATE to update multiple documents.
Errors
Errors are propagated via the error parameter.
Returns
true if successful, otherwise false and error is set.