我在codeigniter上做了很多工作.在codeigniter中,如果需要获取最后执行的查询字符串,我们可以使用:
echo $this->db->last_query();
exit;
但目前我正在研究phalcon,我刚刚在这个框架中处于初级阶段.我很好奇是否有办法在phalcon中回显最后一个查询字符串.
谢谢.
解决方法:
使用原始查询
我们有以下查询:
$phql = 'UPDATE `news` SET `category_id` = 5 WHERE `id` = :id';
$this->db->execute($phql, ['id' => 1]);
print_r($this->db->getsqlStatement());
UPDATE
news
SETcategory_id
= 5 WHEREid
= :id
print_r($this->db->getsqlVariables());
Array (
[id] => 1 )
有关DB方法的更多信息,您可以在这里找到:https://docs.phalconphp.com/en/latest/api/Phalcon_Db_Adapter_Pdo.html
使用模型
设置数据库连接和分析器服务:
use Phalcon\Db\Profiler as ProfilerDb;
use Phalcon\Events\Manager as EventsManager;
use Phalcon\Db\Adapter\Pdo\MysqL as MysqLPdo;
$di->set('profiler', function () {
return new ProfilerDb();
}, true);
$di->set('db', function () use ($di) {
$eventsManager = new EventsManager();
// Get a shared instance of the DbProfiler
$profiler = $di->getProfiler();
// Listen all the database events
$eventsManager->attach('db', function ($event, $connection) use ($profiler) {
if ($event->getType() == 'beforeQuery') {
$profiler->startProfile($connection->getsqlStatement());
}
if ($event->getType() == 'afterQuery') {
$profiler->stopProfile();
}
});
$connection = new MysqLPdo(
array(
"host" => "localhost",
"username" => "root",
"password" => "secret",
"dbname" => "invo"
)
);
// Assign the eventsManager to the db adapter instance
$connection->setEventsManager($eventsManager);
return $connection;
});
用它来调试你的查询:
// Send some sql statements to the database
Robots::find();
Robots::find(
array(
"order" => "name"
)
);
Robots::find(
array(
"limit" => 30
)
);
// Get the generated profiles from the profiler
$profiles = $di->get('profiler')->getProfiles();
foreach ($profiles as $profile) {
echo "sql Statement: ", $profile->getsqlStatement(), "\n";
echo "Start Time: ", $profile->getinitialTime(), "\n";
echo "Final Time: ", $profile->getFinalTime(), "\n";
echo "Total Elapsed Time: ", $profile->getTotalElapsedSeconds(), "\n";
}
有关Profiler服务的更多信息:https://docs.phalconphp.com/en/latest/reference/models.html#profiling-sql-statements
Phalcon Prophiler小工具
我正在为FabianFülling制作的Phalcon使用一个可爱的调试小部件.您可以在此处查看存储库:https://github.com/fabfuel/prophiler以下操作窗口小部件的示例屏幕截图:
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