I can't make the following code behave like it should (deleting expired records). Simple test code:
test_expire table definition:
CREATE TABLE `test_expire` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`expire` timestamp NOT NULL,
PRIMARY KEY (`id`)
);
Code:
TestExpire::deleteAll();
$record = new TestExpire();
$record->expire = new Expression("NOW() + INTERVAL 1 MONTH");
$record->save();
$record = new TestExpire();
$record->expire = new Expression("NOW() + INTERVAL 1 YEAR");
$record->save();
$records = TestExpire::find('expire > :expire', ['expire' => date('Y-m-d')])->all();
echo "Records (" . count($records) . "):
";
foreach($records as $record) {
echo "Expire: " . $record->expire . "
";
}
TestExpire::deleteAll("expire < NOW()");
$records = TestExpire::find('expire > :expire', ['expire' => date('Y-m-d')])->all();
echo "Records after delete 1: " . count($records) . "
";
TestExpire::deleteAll("expire < :expire", [':expire' => date('Y-m-d G:i:s')]);
$records = TestExpire::find('expire > :expire', ['expire' => date('Y-m-d')])->all();
echo "Records after delete 2: " . count($records) . "
";
TestExpire::deleteAll("expire < :expire", [':expire' => new Expression("NOW()")]);
$records = TestExpire::find('expire > :expire', ['expire' => date('Y-m-d')])->all();
echo "Records after delete 3: " . count($records) . "
";
Well I expect all deleteAll expressions be the same, each of them not deleting records. But the last one does. Here's the output:
Records (2):
Expire: 2015-01-05 14:52:02
Expire: 2015-12-05 14:52:02
Records after delete 1: 2
Records after delete 2: 2
Records after delete 3: 0
The question is why it happens and how to make it work as intended?