在Illuminate/Database/Connection.php中我可以看到:
/**
* Indicates whether queries are being logged.
*
* @var bool
*/
protected $loggingQueries = false;
/**
* Enable the query log on the connection.
*
* @return void
*/ public function enableQueryLog()
{
$this->loggingQueries = true;
}
/**
* Disable the query log on the connection.
*
* @return void
*/
public function disableQueryLog()
{
$this->loggingQueries = false;
}
/**
* Determine whether we're logging queries.
*
* @return bool
*/
public function logging()
{
return $this->loggingQueries;
}
/**
* Run a SQL statement and log its execution context.
*
* @param string $query
* @param array $bindings
* @param 'Closure $callback
* @return mixed
*
* @throws 'Illuminate'Database'QueryException
*/
protected function run($query, $bindings, Closure $callback)
{
...
$this->logQuery($query, $bindings, $time);
return $result;
}
/**
* Log a query in the connection's query log.
*
* @param string $query
* @param array $bindings
* @param float|null $time
* @return void */
public function logQuery($query, $bindings, $time = null) {
...
if ($this->loggingQueries) { $this->queryLog[] = compact('query', 'bindings', 'time');
}
}
这些数据是否存储在某个地方?如果是的话，我如何全局启用它?
我会使用中间件来启用它。这将允许您使用选项启用(例如仅在local环境中，等等)。
可以使用dd()或Log::info()等来收集信息。比如:
namespace App'Http'Middleware;
use DB;
use Log;
use Closure;
class EnableQueryLogMiddleware
{
public function handle($request, Closure $next)
{
if (env('local')) {
DB::enableQueryLog();
}
return $next($request);
}
public function terminate($request, $response)
{
// Here you can either Log it, DD, etc.
dd(DB::getQueryLog());
Log::info(DB::getQueryLog());
}
}