1MONGOC_DATABASE_READ_WRITE_COMMAMMNoODnN_gGWoOIDCTB_HD_CAOTPDATrBSiA(vS3eE)r_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.
23
24       Use  this  function  for  commands  that  both  read and write, such as
25       "mapReduce" with an output collection.
26
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                     ├─────────────┼───────────────┼───────────┤
36opts         opts          opts      
37                     ├─────────────┼───────────────┼───────────┤
38                     │Transaction  │ Transaction   │           │
39                     ├─────────────┼───────────────┼───────────┤
40database     database      │           │
41                     └─────────────┴───────────────┴───────────┘
42
43       See the example for transactions and for the  "distinct"  command  with
44       opts.
45
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.
82
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.
100
101       A write concern timeout or write concern error is considered a failure.
102

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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1151.15.2                         MONNoGvOC0_6D,AT2A0B1A9SE_READ_WRITE_COMMAND_WITH_OPTS(3)
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