我有一个使用这种方法的简单数据库类
function __construct($host, $user, $pass, $db) {
$this->link = pg_connect("host=$host port=5432 dbname=$db user=$user password=$pass") or $this->error();
}
public function run($sql, $args = null) {
if(!$args)
$this->query = pg_query($sql);
else {
$v = md5(uniqid(mt_rand(), true));
$this->query = pg_prepare($v, $sql);
$this->query = pg_execute($v, $args);
}
return $this;
}
使用它,我可以在没有准备好的语句的情况下进行以下查询,并且效果很好。
$db->run("
INSERT INTO userExercise (userid, exerciseid, date, sets)
VALUES ($user->id, $exerciseid, '$date', '$sets')
ON CONFLICT (userid, date, exerciseid)
DO UPDATE SET sets = '$sets'
RETURNING LASTVAL()"
);
但是,当我进行准备时,我收到错误“错误:准备好的语句“41982c47c3c84749552cd9808ad03422”不存在”
$db->run("
INSERT INTO userExercise (userid, exerciseid, date, sets)
VALUES ($1, $2, $3 $4)
ON CONFLICT (userid, date, exerciseid)
DO UPDATE SET sets = $4
RETURNING LASTVAL()",
[$user->id, $exerciseid, $date, $sets]
);
由此41982c47c3c84749552cd9808ad03422
产生md5
一个唯一的名称。问题似乎来自ON CONFLICT
. 我该如何解决这个问题?