Add average on repartition charts.

It needs some verification on the value used to calculate the averages.

app/Controllers/statsController.php

@@ -67,8 +67,11 @@ class FreshRSS_stats_Controller extends Minz_ActionController {
 		$this->view->days = $statsDAO->getDays();
 		$this->view->months = $statsDAO->getMonths();
 		$this->view->repartitionHour = $statsDAO->calculateEntryRepartitionPerFeedPerHour($id);
+		$this->view->averageHour = $statsDAO->calculateEntryAveragePerFeedPerHour($id);
 		$this->view->repartitionDayOfWeek = $statsDAO->calculateEntryRepartitionPerFeedPerDayOfWeek($id);
+		$this->view->averageDayOfWeek = $statsDAO->calculateEntryAveragePerFeedPerDayOfWeek($id);
 		$this->view->repartitionMonth = $statsDAO->calculateEntryRepartitionPerFeedPerMonth($id);
+		$this->view->averageMonth = $statsDAO->calculateEntryAveragePerFeedPerMonth($id);
 	}
 
 	public function firstAction() {

app/Models/StatsDAO.php

@@ -151,6 +151,68 @@ SQL;
 		return $this->convertToSerie($repartition);
 	}
 
+	/**
+	 * Calculates the average number of article per hour per feed
+	 *
+	 * @param integer $feed id
+	 * @return integer
+	 */
+	public function calculateEntryAveragePerFeedPerHour($feed = null) {
+		return $this->calculateEntryAveragePerFeedPerPeriod(1/24, $feed);
+	}
+	
+	/**
+	 * Calculates the average number of article per day of week per feed
+	 *
+	 * @param integer $feed id
+	 * @return integer
+	 */
+	public function calculateEntryAveragePerFeedPerDayOfWeek($feed = null) {
+		return $this->calculateEntryAveragePerFeedPerPeriod(7, $feed);
+	}
+
+	/**
+	 * Calculates the average number of article per month per feed
+	 *
+	 * @param integer $feed id
+	 * @return integer
+	 */
+	public function calculateEntryAveragePerFeedPerMonth($feed = null) {
+		return $this->calculateEntryAveragePerFeedPerPeriod(30, $feed);
+	}
+	
+	/**
+	 * Calculates the average number of article per feed
+	 * 
+	 * @param float $period number used to divide the number of day in the period
+	 * @param integer $feed id
+	 * @return integer
+	 */
+	protected function calculateEntryAveragePerFeedPerPeriod($period, $feed = null) {
+		if ($feed) {
+			$restrict = "WHERE e.id_feed = {$feed}";
+		} else {
+			$restrict = '';
+		}
+		$sql = <<<SQL
+SELECT COUNT(1) AS count
+, MIN(date) AS date_min
+, MAX(date) AS date_max
+FROM {$this->prefix}entry AS e
+{$restrict}
+SQL;
+		$stm = $this->bd->prepare($sql);
+		$stm->execute();
+		$res = $stm->fetch(PDO::FETCH_NAMED);
+		$date_min = new \DateTime();
+		$date_min->setTimestamp($res['date_min']);
+		$date_max = new \DateTime();
+		$date_max->setTimestamp($res['date_max']);
+		$interval = $date_max->diff($date_min, true);
+
+		return round($res['count'] / ($interval->format('%a') / ($period)), 2);
+	}
+
 	/**
 	 * Initialize an array for statistics depending on a range
 	 *

app/views/stats/repartition.phtml

@@ -56,11 +56,22 @@ function initStats() {
 		return;
 	}
 	// Entry per hour
+	var avg_h = [];
+	for (var i = -1; i <= 24; i++) {
+		avg_h.push([i, <?php echo $this->averageHour?>]);
+	}
 	Flotr.draw(document.getElementById('statsEntryPerHour'),
-		[<?php echo $this->repartitionHour ?>],
+		[{
+			data: <?php echo $this->repartitionHour ?>,
+			bars: {horizontal: false, show: true}
+		}, {
+			data: avg_h,
+			lines: {show: true},
+			label: <?php echo $this->averageHour?>,
+			yaxis: 2
+		}],
 		{
 			grid: {verticalLines: false},
-			bars: {horizontal: false, show: true},
 			xaxis: {noTicks: 23,
 				tickFormatter: function(x) {
 					var x = parseInt(x);
@@ -70,14 +81,26 @@ function initStats() {
 				max: 23.9,
 				tickDecimals: 0},
 			yaxis: {min: 0},
+			y2axis: {showLabels: false},
 			mouse: {relative: true, track: true, trackDecimals: 0, trackFormatter: function(obj) {return numberFormat(obj.y);}}
 		});
 	// Entry per day of week
+	var avg_dow = [];
+	for (var i = -1; i <= 7; i++) {
+		avg_dow.push([i, <?php echo $this->averageDayOfWeek?>]);
+	}
 	Flotr.draw(document.getElementById('statsEntryPerDayOfWeek'),
-		[<?php echo $this->repartitionDayOfWeek ?>],
+		[{
+			data: <?php echo $this->repartitionDayOfWeek ?>,
+			bars: {horizontal: false, show: true}
+		}, {
+			data: avg_dow,
+			lines: {show: true},
+			label: <?php echo $this->averageDayOfWeek?>,
+			yaxis: 2
+		}],
 		{
 			grid: {verticalLines: false},
-			bars: {horizontal: false, show: true},
 			xaxis: {noTicks: 6,
 				tickFormatter: function(x) {
 					var x = parseInt(x),
@@ -88,14 +111,26 @@ function initStats() {
 				max: 6.9,
 				tickDecimals: 0},
 			yaxis: {min: 0},
+			y2axis: {showLabels: false},
 			mouse: {relative: true, track: true, trackDecimals: 0, trackFormatter: function(obj) {return numberFormat(obj.y);}}
 		});
 	// Entry per month
+	var avg_m = [];
+	for (var i = 0; i <= 13; i++) {
+		avg_m.push([i, <?php echo $this->averageMonth?>]);
+	}
 	Flotr.draw(document.getElementById('statsEntryPerMonth'),
-		[<?php echo $this->repartitionMonth ?>],
+		[{
+			data: <?php echo $this->repartitionMonth ?>,
+			bars: {horizontal: false, show: true}
+		}, {
+			data: avg_m,
+			lines: {show: true},
+			label: <?php echo $this->averageMonth?>,
+			yaxis: 2
+		}],
 		{
 			grid: {verticalLines: false},
-			bars: {horizontal: false, show: true},
 			xaxis: {noTicks: 12,
 				tickFormatter: function(x) {
 					var x = parseInt(x),
@@ -106,6 +141,7 @@ function initStats() {
 				max: 12.9,
 				tickDecimals: 0},
 			yaxis: {min: 0},
+			y2axis: {showLabels: false},
 			mouse: {relative: true, track: true, trackDecimals: 0, trackFormatter: function(obj) {return numberFormat(obj.y);}}
 		});