Collection::removeOne
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Collection::removeOne — Remove one collection document
Beschreibung
Remove one document from the collection with the correspending ID.
This is a shortcut for Collection.remove("_id = :id").bind("id", id).execute().
Parameter-Liste
-
id -
The ID of the collection document to remove. Typically this is the _id that was generated by MySQL Server when the record was added.
Rückgabewerte
A Result object that can be used to query the number of affected items or the number warnings generated by the operation.
Beispiele
Beispiel #1 mysql_xdevapi\Collection::removeOne() example
<?php
$session = mysql_xdevapi\getSession("mysqlx://user:password@localhost");
$session->sql("DROP DATABASE IF EXISTS addressbook")->execute();
$session->sql("CREATE DATABASE addressbook")->execute();
$schema = $session->getSchema("addressbook");
$collection = $schema->createCollection("people");
$result = $collection->add('{"name": "Alfred", "age": 18, "job": "Butler"}')->execute();
// Normally the _id is known by other means,
// but for this example let's fetch the generated id and use it
$ids = $result->getGeneratedIds();
$alfred_id = $ids[0];
$result = $collection->removeOne($alfred_id);
if(!$result->getAffectedItemsCount()) {
echo "Alfred with id $alfred_id was not removed.";
} else {
echo "Goodbye, Alfred, you can take _id $alfred_id with you.";
}
?>
Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:
Goodbye, Alfred, you can take _id 00005b6b536100000000000000cb with you.
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