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<?php |
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/** |
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* Created for IG Monitoring. |
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* User: jakim <[email protected]> |
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* Date: 03.04.2018 |
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*/ |
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namespace app\modules\admin\components; |
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use yii\base\Component; |
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use yii\base\InvalidConfigException; |
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use yii\db\Expression; |
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class AccountStatsManager extends Component |
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{ |
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/** |
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* @var \app\modules\admin\models\Account |
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*/ |
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public $account; |
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/** |
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* Daily stats from last month. |
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* |
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* @var \app\models\AccountStats[] |
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*/ |
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protected $dailyStats; |
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/** |
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* Monthly stats from last year. |
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* |
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* @var \app\models\AccountStats[] |
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*/ |
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protected $monthlyStats; |
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public function init() |
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{ |
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parent::init(); |
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if (!$this->account) { |
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throw new InvalidConfigException('Property \'account\' can not be empty.'); |
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} |
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} |
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public function lastChange($attribute) |
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{ |
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$statsData = $this->getDailyStatsData(); |
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if (!$statsData) { |
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return null; |
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} |
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$latest = array_shift($statsData); |
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$oldest = array_shift($statsData); |
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return $latest->$attribute - $oldest->$attribute; |
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} |
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public function lastStatsFrom() |
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{ |
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$statsData = $this->getDailyStatsData(); |
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if (!$statsData) { |
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return null; |
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} |
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array_shift($statsData); |
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$oldest = array_shift($statsData); |
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return $oldest->created_at; |
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} |
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public function lastMonthChange($attribute) |
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{ |
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$statsData = $this->getDailyStatsData(); |
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if (!$statsData) { |
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return null; |
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} |
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$latest = array_shift($statsData); |
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$oldest = end($statsData); |
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return $latest->$attribute - $oldest->$attribute; |
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} |
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public function dailyStatsFrom() |
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{ |
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$statsData = $this->getDailyStatsData(); |
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if (!$statsData) { |
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return null; |
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} |
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array_shift($statsData); |
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$oldest = end($statsData); |
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return $oldest->created_at; |
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} |
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public function monthlyStatsFrom() |
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{ |
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$statsData = $this->getMonthlyStatsData(); |
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if (!$statsData) { |
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return null; |
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} |
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array_shift($statsData); |
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$oldest = end($statsData); |
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return $oldest->created_at; |
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} |
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public function getDailyStatsData($reverse = true) |
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{ |
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$this->initDailyStatsData(); |
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if (count($this->dailyStats) < 2) { |
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return null; |
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} |
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if ($reverse) { |
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return array_reverse($this->dailyStats); |
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} |
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return $this->dailyStats; |
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} |
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public function getMonthlyStatsData($reverse = true) |
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{ |
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$this->initMonthlyStatsData(); |
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if (count($this->monthlyStats) < 2) { |
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return null; |
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} |
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if ($reverse) { |
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return array_reverse($this->monthlyStats); |
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} |
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return $this->monthlyStats; |
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} |
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private function initDailyStatsData() |
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{ |
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if (!$this->dailyStats) { |
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$rows = $this->account->getAccountStats() |
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->select([ |
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new Expression('DATE_FORMAT(created_at, "%Y-%m-%d") as day'), |
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'account_stats.*', |
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]) |
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->andWhere(new Expression('account_stats.created_at >= DATE_SUB(NOW(), INTERVAL 1 MONTH)')) |
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->orderBy('account_stats.id ASC') |
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->all(); |
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foreach ($rows as $row) { |
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$this->dailyStats[$row->day] = $row; |
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} |
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$this->dailyStats = array_values($this->dailyStats); |
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} |
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} |
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private function initMonthlyStatsData() |
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{ |
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if (!$this->monthlyStats) { |
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$rows = $this->account->getAccountStats() |
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->select([ |
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new Expression('DATE_FORMAT(created_at, "%Y-%m") as month'), |
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'account_stats.*', |
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]) |
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->andWhere(new Expression('account_stats.created_at >= DATE_SUB(NOW(), INTERVAL 1 YEAR)')) |
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->orderBy('account_stats.id ASC') |
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->all(); |
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foreach ($rows as $row) { |
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$this->monthlyStats[$row->month] = $row; |
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} |
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$this->monthlyStats = array_values($this->monthlyStats); |
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} |
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} |
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} |
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.