Improved metric repository for per-db methods. Closes #921

2015-08-30 22:35:16 +01:00
parent 062a16ca5b
commit 7136457b49
9 changed files with 516 additions and 210 deletions
--- a/app/Repositories/Metric/PgSqlRepository.php
+++ b/app/Repositories/Metric/PgSqlRepository.php
@@ -0,0 +1,113 @@
+<?php
+
+/*
+ * This file is part of Cachet.
+ *
+ * (c) Alt Three Services Limited
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CachetHQ\Cachet\Repositories\Metric;
+
+use CachetHQ\Cachet\Facades\Setting as SettingFacade;
+use CachetHQ\Cachet\Models\Metric;
+use DateInterval;
+use Illuminate\Support\Facades\DB;
+use Jenssegers\Date\Date;
+
+class PgSqlRepository implements MetricInterface
+{
+    /**
+     * The timezone the status page is showing in.
+     *
+     * @var string
+     */
+    protected $dateTimeZone;
+
+    /**
+     * Creates a new instance of the metric repository.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        $this->dateTimeZone = SettingFacade::get('app_timezone');
+    }
+
+    /**
+     * Returns metrics for a given hour.
+     *
+     * @param \CachetHQ\Cachet\Models\Metric $metric
+     * @param int                            $hour
+     *
+     * @return int
+     */
+    public function getPointsByHour(Metric $metric, $hour)
+    {
+        $dateTime = (new Date())->setTimezone($this->dateTimeZone);
+        $dateTime->sub(new DateInterval('PT'.$hour.'H'));
+        $hourInterval = $dateTime->format('YmdH');
+
+        // Default metrics calculations.
+        if (!isset($metric->calc_type) || $metric->calc_type == Metric::CALC_SUM) {
+            $queryType = 'sum(metric_points.value)';
+        } elseif ($metric->calc_type == Metric::CALC_AVG) {
+            $queryType = 'avg(metric_points.value)';
+        } else {
+            $queryType = 'sum(metric_points.value)';
+        }
+
+        $query = DB::select("select {$queryType} as aggregate FROM metrics JOIN metric_points ON metric_points.metric_id = metrics.id WHERE metric_points.metric_id = :metric_id AND to_char(metric_points.created_at, 'YYYYMMDDHH24') = :timestamp GROUP BY to_char(metric_points.created_at, 'H')", [
+            'metric_id' => $metric->id,
+            'timestamp' => $hourInterval,
+        ]);
+
+        if (isset($query[0])) {
+            $value = $query[0]->aggregate;
+        } else {
+            $value = 0;
+        }
+
+        if ($value === 0 && $metric->default_value != $value) {
+            return $metric->default_value;
+        }
+
+        return round($value, $metric->places);
+    }
+
+    /**
+     * Returns metrics for the week.
+     *
+     * @param \CachetHQ\Cachet\Models\Metric $metric
+     *
+     * @return int
+     */
+    public function getPointsForDayInWeek(Metric $metric, $day)
+    {
+        $dateTime = (new Date())->setTimezone($this->dateTimeZone);
+        $dateTime->sub(new DateInterval('P'.$day.'D'));
+
+        // Default metrics calculations.
+        if (!isset($metric->calc_type) || $metric->calc_type == Metric::CALC_SUM) {
+            $queryType = 'sum(metric_points.value)';
+        } elseif ($metric->calc_type == Metric::CALC_AVG) {
+            $queryType = 'avg(metric_points.value)';
+        } else {
+            $queryType = 'sum(metric_points.value)';
+        }
+
+        $query = DB::select("select {$queryType} as aggregate FROM metrics JOIN metric_points ON metric_points.metric_id = metrics.id WHERE metric_points.metric_id = {$metric->id} AND to_char(metric_points.created_at, 'YYYYMMDD') = :timestamp GROUP BY to_char(metric_points.created_at, 'YYYYMMDD')", [
+            'timestamp' => $hourInterval,
+        ]);
+
+        if (isset($query[0])) {
+            $value = $query[0]->aggregate;
+        } else {
+            $value = 0;
+        }
+
+        return round($value, $metric->places);
+    }
+}