Rumah >pembangunan bahagian belakang >tutorial php >第一段yii2 model类,找错与点评
第一段yii2的代码,功能是检测用户是否创建当天日志。如果未创建,立即创建,并且保存。
为了避免大量查询数据库,所以保存到session中(可能不是很好?)。
欢迎指正其中的优缺点(逻辑是否正确):
<code>#/models/log/DayLog.php #/models/log/DayLogInterface.php #/models/log/SystemLog.php #/models/log/MemberLog.php #/models/log/VistorLog.php </code>
<code>php</code><code>#/models/log/DayLog.php namespace app\models\log; use yii\db\ActiveRecord; class DayLog extends ActiveRecord { const SESSION_LOG_ID = 'x_day_id'; const SESSION_LOG_DATE = 'x_day_date'; public $allowFields = []; /** * @description 更新统计日志 * * @param $id * @param $field * @param int $num * * @return bool */ public function updateLog($id, $field, $num = 1) { if (in_array($field, $this->allowFields)) { $s = self::findOne($id); if ($s) { return $s->updateCounters([$field => $num]); } } return false; } public function getLogId() { return \Yii::$app->session->get($this::SESSION_LOG_ID); } public function getLogDate() { return \Yii::$app->session->get($this::SESSION_LOG_DATE); } public function setLogId($id) { \Yii::$app->session->set($this::SESSION_LOG_ID, $id); } public function setLogDate($date) { \Yii::$app->session->set($this::SESSION_LOG_DATE, $date); } //退出的时候必须全部删除 public function clean() { \Yii::$app->session->remove($this::SESSION_LOG_ID); \Yii::$app->session->remove($this::SESSION_LOG_DATE); } } </code>
<code>php</code><code>#/models/log/DayLogInterface.php namespace app\models\log; interface DayLogInterface { public function check(); } </code>
<code>php</code><code>#/models/log/MemberLog.php namespace app\models\log; use yii\base\Event; use yii\db\ActiveRecord; use yii\web\User; class MemberLog extends DayLog implements DayLogInterface { const SESSION_LOG_ID = 'u_day_id'; // 日志的保存ID const SESSION_LOG_DATE = 'u_day_date'; //日志中保存的日期 YYYY-MM-dd public $allowFields = []; public static function tableName() { return '{{%daylog_member}}'; } public function check() { //如果不是GUEST检查是否有日志 if (!\Yii::$app->user->isGuest) { $logId = $this->getLogId(); $logDate = $this->getLogDate(); $today = date('Y-m-d'); if ($logId && $logDate == $today) { //当天日志已经创建 } else { $row = self::find() ->where(['uid' => \Yii::$app->user->getId(), 'date' => $today]) ->one(); if ($row) { //数据库中有当天记录 $this->setLogId($row->id); $this->setLogDate($row->date); } else { $log = new self(); $log->date = $today; $log->uid = \Yii::$app->user->getId(); if ($log->save() && $log->id) { $this->setLogId($log->id); $this->setLogDate($log->date); } } } //绑定事件 登录前清空原有记录 Event::on(User::className(), User::EVENT_BEFORE_LOGIN, [ActiveRecord::className(), 'clean']); } } } </code>
第一段yii2的代码,功能是检测用户是否创建当天日志。如果未创建,立即创建,并且保存。
为了避免大量查询数据库,所以保存到session中(可能不是很好?)。
欢迎指正其中的优缺点(逻辑是否正确):
<code>#/models/log/DayLog.php #/models/log/DayLogInterface.php #/models/log/SystemLog.php #/models/log/MemberLog.php #/models/log/VistorLog.php </code>
<code>php</code><code>#/models/log/DayLog.php namespace app\models\log; use yii\db\ActiveRecord; class DayLog extends ActiveRecord { const SESSION_LOG_ID = 'x_day_id'; const SESSION_LOG_DATE = 'x_day_date'; public $allowFields = []; /** * @description 更新统计日志 * * @param $id * @param $field * @param int $num * * @return bool */ public function updateLog($id, $field, $num = 1) { if (in_array($field, $this->allowFields)) { $s = self::findOne($id); if ($s) { return $s->updateCounters([$field => $num]); } } return false; } public function getLogId() { return \Yii::$app->session->get($this::SESSION_LOG_ID); } public function getLogDate() { return \Yii::$app->session->get($this::SESSION_LOG_DATE); } public function setLogId($id) { \Yii::$app->session->set($this::SESSION_LOG_ID, $id); } public function setLogDate($date) { \Yii::$app->session->set($this::SESSION_LOG_DATE, $date); } //退出的时候必须全部删除 public function clean() { \Yii::$app->session->remove($this::SESSION_LOG_ID); \Yii::$app->session->remove($this::SESSION_LOG_DATE); } } </code>
<code>php</code><code>#/models/log/DayLogInterface.php namespace app\models\log; interface DayLogInterface { public function check(); } </code>
<code>php</code><code>#/models/log/MemberLog.php namespace app\models\log; use yii\base\Event; use yii\db\ActiveRecord; use yii\web\User; class MemberLog extends DayLog implements DayLogInterface { const SESSION_LOG_ID = 'u_day_id'; // 日志的保存ID const SESSION_LOG_DATE = 'u_day_date'; //日志中保存的日期 YYYY-MM-dd public $allowFields = []; public static function tableName() { return '{{%daylog_member}}'; } public function check() { //如果不是GUEST检查是否有日志 if (!\Yii::$app->user->isGuest) { $logId = $this->getLogId(); $logDate = $this->getLogDate(); $today = date('Y-m-d'); if ($logId && $logDate == $today) { //当天日志已经创建 } else { $row = self::find() ->where(['uid' => \Yii::$app->user->getId(), 'date' => $today]) ->one(); if ($row) { //数据库中有当天记录 $this->setLogId($row->id); $this->setLogDate($row->date); } else { $log = new self(); $log->date = $today; $log->uid = \Yii::$app->user->getId(); if ($log->save() && $log->id) { $this->setLogId($log->id); $this->setLogDate($log->date); } } } //绑定事件 登录前清空原有记录 Event::on(User::className(), User::EVENT_BEFORE_LOGIN, [ActiveRecord::className(), 'clean']); } } } </code>
免责声明,我没写过yii,只能从OOP的方向说一下问题
我觉得这个代码,依赖关系搞错了,这个逻辑上,应该是$app->user $app->session依赖record,而现在是record依赖user和session
所以如果我来封装,应该大概是这样
<code>php</code><code>class MemberLog { public function __construct($user) { // find record by user $this->record = findByUser($user); } public function check() { $this->record->doSomething(); } } </code>