NAME

       mongoc_find_and_modify_opts_set_update() - Adds update argument to the builder.

SYNOPSIS

       bool
       mongoc_find_and_modify_opts_set_update (mongoc_find_and_modify_opts_t  *opts,
                                               const bson_t                   *update);

       NOTE
              New in mongoc 1.3.0

PARAMETERS

       opts   A mongoc_find_and_modify_opts_t \&.

       update The  update  document  is  the  same  format  as  the  update  document  passed  to
              mongoc_collection_update \&.

DESCRIPTION

       Adds update argument to the builder.

RETURNS

       Returns true if it successfully added the option to the builder.

SETTING UPDATE

       void fam_update(mongoc_collection_t *collection)
       {
          mongoc_find_and_modify_opts_t *opts;
          bson_t *update;
          bson_t reply;
          bson_error_t error;
          bson_t query = BSON_INITIALIZER;
          bool success;

          /* Find Zlatan Ibrahimovic */
          BSON_APPEND_UTF8 (&query, "firstname", "Zlatan");
          BSON_APPEND_UTF8 (&query, "lastname", "Ibrahimovic");

          /* Make him a book author */
          update = BCON_NEW ("$set", "{",
             "author", BCON_BOOL (true),
          "}");

          opts = mongoc_find_and_modify_opts_new ();
          /* Note that the document returned is the _previous_ version of the document
           * To fetch the modified new version, use
           * mongoc_find_and_modify_opts_set_flags (opts, MONGOC_FIND_AND_MODIFY_RETURN_NEW);
           */
          mongoc_find_and_modify_opts_set_update (opts, update);

          success = mongoc_collection_find_and_modify_with_opts (collection, &query, opts, &reply, &error);

          if (success) {
             char *str;

             str = bson_as_json (&reply, NULL);
             printf ("%s\n", str);
             bson_free (str);
          } else {
             fprintf(stderr, "Got error: \"%s\" on line %d\n", error.message, __LINE__);
          }

          bson_destroy (&reply);
          bson_destroy (update);
          bson_destroy (&query);
          mongoc_find_and_modify_opts_destroy (opts);
       }

       Outputs:

       {
           "lastErrorObject": {
               "updatedExisting": true,
               "n": 1
           },
           "value": {
               "_id": {
                   "$oid": "56562a99d13e6d86239c7b00"
               },
               "age": 35,
               "firstname": "Zlatan",
               "goals": 342,
               "lastname": "Ibrahimovic",
               "profession": "Football player",
               "position": "striker"
           },
           "ok": 1
       }

COLOPHON

       This   page   is   part   of   MongoDB   C   Driver.    Please   report   any   bugs    at
       https://jira.mongodb.org/browse/CDRIVER.