CollectionRemove::__construct

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CollectionRemove::__construct — CollectionRemove constructor

说明

private mysql_xdevapi\CollectionRemove::__construct ( void )

Remove collection documents, and is instantiated by the Collection::remove() method.

参数

此函数没有参数。

范例

Example #1 mysql_xdevapi\Collection::remove() 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");

$collection->add('{"name": "Alfred", "age": 18, "job": "Butler"}')->execute();
$collection->add('{"name": "Bob",    "age": 19, "job": "Painter"}')->execute();

// Remove all painters
$collection
  ->remove("job in ('Painter')")
  ->execute();

// Remove the oldest butler
$collection
  ->remove("job in ('Butler')")
  ->sort('age desc')
  ->limit(1)
  ->execute();

// Remove record with lowest age
$collection
  ->remove('true')
  ->sort('age desc')
  ->limit(1)
  ->execute();
?>