1MONGOC_DATABASE_READ_WRITE_COMMAMNODN_GWlOIiCTb_HmD_oAOnTPgAToBScA(S3E)_READ_WRITE_COMMAND_WITH_OPTS(3)
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NAME

6       mongoc_database_read_write_command_with_opts       -       mongoc_data‐
7       base_read_write_command_with_opts()
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SYNOPSIS

10          bool
11          mongoc_database_read_write_command_with_opts (
12             mongoc_database_t *database,
13             const bson_t *command,
14             const mongoc_read_prefs_t *read_prefs /* UNUSED */,
15             const bson_t *opts,
16             bson_t *reply,
17             bson_error_t *error);
18
19       Execute a command on the server, applying logic for commands that  both
20       read  and write, and taking the MongoDB server version into account. To
21       send a raw command to the server without any of this  logic,  use  mon‐
22       goc_database_command_simple.
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24       Use  this  function  for  commands  that  both  read and write, such as
25       "mapReduce" with an output collection.
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27       Read and write concern and  collation  can  be  overridden  by  various
28       sources.  In  a transaction, read concern and write concern are prohib‐
29       ited in opts. The highest-priority sources for these options are listed
30       first  in  the  following  table. Read preferences are not applied. The
31       write concern is omitted for MongoDB before 3.4.
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33                     ┌─────────────┬───────────────┬───────────┐
34                     │Read Concern │ Write Concern │ Collation │
35                     ├─────────────┼───────────────┼───────────┤
36                     │opts         │ opts          │ opts      │
37                     ├─────────────┼───────────────┼───────────┤
38                     │Transaction  │ Transaction   │           │
39                     ├─────────────┼───────────────┼───────────┤
40                     │database     │ database      │           │
41                     └─────────────┴───────────────┴───────────┘
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43       See the example for transactions and for the  "distinct"  command  with
44       opts.
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46       reply is always initialized, and must be freed with bson_destroy().
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48       (The  mongoc_read_prefs_t  parameter  was included by mistake when this
49       function was introduced in libmongoc 1.5. A command  that  writes  must
50       not obey a read preference.)
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PARAMETERS

53       · database: A mongoc_database_t.
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55       · command: A bson_t containing the command specification.
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57       · read_prefs: Ignored.
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59       · opts: A bson_t containing additional options.
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61       · reply: A location for the resulting document.
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63       · error: An optional location for a bson_error_t or NULL.
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65       opts may be NULL or a BSON document with additional command options:
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67       · readConcern:   Construct   a   mongoc_read_concern_t   and  use  mon‐
68         goc_read_concern_append to add the read  concern  to  opts.  See  the
69         example  code  for mongoc_client_read_command_with_opts. Read concern
70         requires MongoDB 3.2 or later, otherwise an error is returned.
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72       · writeConcern:  Construct  a  mongoc_write_concern_t  and   use   mon‐
73         goc_write_concern_append  to  add  the write concern to opts. See the
74         example code for mongoc_client_write_command_with_opts.
75
76       · sessionId:  First,  construct  a  mongoc_client_session_t  with  mon‐
77         goc_client_start_session.  You  can  begin  a  transaction  with mon‐
78         goc_client_session_start_transaction, optionally with a mongoc_trans‐
79         action_opt_t  that overrides the options inherited from database, and
80         use mongoc_client_session_append to add the session to opts. See  the
81         example code for mongoc_client_session_t.
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83       · collation:  Configure  textual  comparisons.  See  Setting  Collation
84         Order, and the MongoDB Manual entry on Collation. Collation  requires
85         MongoDB 3.2 or later, otherwise an error is returned.
86
87       · serverId:  To  target  a specific server, include an int32 "serverId"
88         field. Obtain the id  by  calling  mongoc_client_select_server,  then
89         mongoc_server_description_id on its return value.
90
91       Consult  the  MongoDB  Manual  entry on Database Commands for each com‐
92       mand's arguments.
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ERRORS

95       Errors are propagated via the error parameter.
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RETURNS

98       Returns true if successful. Returns false and sets error if  there  are
99       invalid arguments or a server or network error.
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101       A write concern timeout or write concern error is considered a failure.
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EXAMPLE

104       See the example code for mongoc_client_read_command_with_opts.
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AUTHOR

107       MongoDB, Inc
108

110       2017-present, MongoDB, Inc
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1151.16.2                         MOFNeGbOC2_5D,AT2A0B2A0SE_READ_WRITE_COMMAND_WITH_OPTS(3)
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