MongoCursor::setFlag
(Ingen versionsoplysninger tilgængelige, findes måske kun i SVN)
MongoCursor::setFlag — Sets arbitrary flags in case there is no method available the specific flag
Beskrivelse
The MongoCursor class has several methods for setting flags on the query object. This method is available in case the MongoDB wire protocol has acquired a new flag, and the driver has not been updated with a method for this new flag. In all other cases, the method should be used. See the "See also" section for available methods.
Parametre
-
flag -
Which flag to set. You can not set flag 3 (OPLOG REPLAY) or flag 6 (EXHAUST) as the driver does not know how to handle them. You will get a warning if you try to use those. For available flags, please refer to the wire protocol » documentation.
-
set -
Whether the flag should be set (
TRUE) or unset (FALSE).
Returnerings Værdier
Returns this cursor.
Fejl/Undtagelser
Shows a warning when an unsupport flag is attempted to be set.
Eksempler
Eksempel #1 MongoCursor::setFlag() example
<?php
$m = new Mongo( 'mongodb://localhost:13000', array( 'replSet' => 'seta' ) );
$c = $m->local->selectCollection( 'oplog.rs' );
$cursor = $c->find( array( 'ns' => 'demo.article', 'op' => 'i' ) );
$cursor->setFlag( 1, true ); // sets the tailable flag
$cursor->setFlag( 5, true ); // sets the await data flag
?>
Se også
MongoDB core docs on » wire protocol query flags.
- MongoCursor::tailable() - Sets whether this cursor will be left open after fetching the last results
- MongoCursor::slaveOkay() - Sets whether this query can be done on a slave
- MongoCursor::immortal() - Sets whether this cursor will timeout
- MongoCursor::awaitData() - Sets whether this cursor will wait for a while for a tailable cursor to return more data
- MongoCursor::partial() - If this query should fetch partial results from mongos if a shard is down
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