Drupalのwatchdogでログを残す＆使い方

Aug 14, 2015

AD:

たとえば、ユーザが追加された際などにWatchDogでログを残しておく場合

watchdog('custom_reports', // Typeを指定
'New user: %name (%email).', //メッセージ
array(
'%name' => $form_state['values']['name'], //メッセージにデータを渡す
'%email' => $form_state['values']['mail'] //メッセージにデータを渡す
),
WATCHDOG_NOTICE, 
l(t('edit'), 'user/'. $account->uid .'/edit') // 実行された場所をしていできる
);

watchdog('custom_reports', // Typeを指定

'New user: %name (%email).', //メッセージ

array(

'%name' => $form_state['values']['name'], //メッセージにデータを渡す

'%email' => $form_state['values']['mail'] //メッセージにデータを渡す

WATCHDOG_NOTICE,

l(t('edit'), 'user/'. $account->uid .'/edit') // 実行された場所をしていできる

);

結果はこんな感じ

確認ページはこちら
/admin/reports/dblog

変数の内容をWatchdogにのこしておきたい場合

watchdog('server_information', print_r($_SERVER, TRUE));

1	watchdog('server_information', print_r($_SERVER, TRUE));

結果はこんな感じ

実際のFunctionはこんな感じです。
https://api.drupal.org/api/drupal/includes%21bootstrap.inc/function/watchdog/7

function watchdog($type, $message, $variables = array(), $severity = WATCHDOG_NOTICE, $link = NULL) {
  global $user, $base_root;

  static $in_error_state = FALSE;

  // It is possible that the error handling will itself trigger an error. In that case, we could
  // end up in an infinite loop. To avoid that, we implement a simple static semaphore.
  if (!$in_error_state && function_exists('module_implements')) {
    $in_error_state = TRUE;

    // The user object may not exist in all conditions, so 0 is substituted if needed.
    $user_uid = isset($user->uid) ? $user->uid : 0;

    // Prepare the fields to be logged
    $log_entry = array(
      'type' => $type,
      'message' => $message,
      'variables' => $variables,
      'severity' => $severity,
      'link' => $link,
      'user' => $user,
      'uid' => $user_uid,
      'request_uri' => $base_root . request_uri(),
      'referer' => isset($_SERVER ['HTTP_REFERER']) ? $_SERVER ['HTTP_REFERER'] : '',
      'ip' => ip_address(),
      // Request time isn't accurate for long processes, use time() instead.
      'timestamp' => time(),
    );

    // Call the logging hooks to log/process the message
    foreach (module_implements('watchdog') as $module) {
      module_invoke($module, 'watchdog', $log_entry);
    }

    // It is critical that the semaphore is only cleared here, in the parent
    // watchdog() call (not outside the loop), to prevent recursive execution.
    $in_error_state = FALSE;
  }
}

function watchdog($type, $message, $variables = array(), $severity = WATCHDOG_NOTICE, $link = NULL) {

global $user, $base_root;

static $in_error_state = FALSE;

// It is possible that the error handling will itself trigger an error. In that case, we could

// end up in an infinite loop. To avoid that, we implement a simple static semaphore.

if (!$in_error_state && function_exists('module_implements')) {

$in_error_state = TRUE;

// The user object may not exist in all conditions, so 0 is substituted if needed.

$user_uid = isset($user->uid) ? $user->uid : 0;

// Prepare the fields to be logged

$log_entry = array(

'type' => $type,

'message' => $message,

'variables' => $variables,

'severity' => $severity,

'link' => $link,

'user' => $user,

'uid' => $user_uid,

'request_uri' => $base_root . request_uri(),

'referer' => isset($_SERVER ['HTTP_REFERER']) ? $_SERVER ['HTTP_REFERER'] : '',

'ip' => ip_address(),

// Request time isn't accurate for long processes, use time() instead.

'timestamp' => time(),

);

// Call the logging hooks to log/process the message

foreach (module_implements('watchdog') as $module) {

module_invoke($module, 'watchdog', $log_entry);

}

// It is critical that the semaphore is only cleared here, in the parent

// watchdog() call (not outside the loop), to prevent recursive execution.

$in_error_state = FALSE;

}

AD:

Cloud Nine

Drupalのwatchdogでログを残す＆使い方

結果はこんな感じ

結果はこんな感じ

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