Add an average per day for the 30 day period

app/Controllers/statsController.php

@@ -21,6 +21,7 @@ class FreshRSS_stats_Controller extends Minz_ActionController {
 		Minz_View::appendScript(Minz_Url::display('/scripts/flotr2.min.js?' . @filemtime(PUBLIC_PATH . '/scripts/flotr2.min.js')));
 		$this->view->repartition = $statsDAO->calculateEntryRepartition();
 		$this->view->count = $statsDAO->calculateEntryCount();
+		$this->view->average = $statsDAO->calculateEntryAverage();
 		$this->view->feedByCategory = $statsDAO->calculateFeedByCategory();
 		$this->view->entryByCategory = $statsDAO->calculateEntryByCategory();
 		$this->view->topFeed = $statsDAO->calculateTopFeed();

app/Models/StatsDAO.php

@@ -79,6 +79,27 @@ SQL;
 		return $this->convertToSerie($count);
 	}
 
+	/**
+	 * Calculates entry average per day on a 30 days period.
+	 *
+	 * @return integer
+	 */
+	public function calculateEntryAverage() {
+		$period = self::ENTRY_COUNT_PERIOD;
+
+		// Get stats per day for the last 30 days
+		$sql = <<<SQL
+SELECT COUNT(1) / {$period} AS average
+FROM {$this->prefix}entry AS e
+WHERE FROM_UNIXTIME(e.date, '%Y%m%d') BETWEEN DATE_FORMAT(DATE_ADD(NOW(), INTERVAL -{$period} DAY), '%Y%m%d') AND DATE_FORMAT(DATE_ADD(NOW(), INTERVAL -1 DAY), '%Y%m%d')
+SQL;
+		$stm = $this->bd->prepare($sql);
+		$stm->execute();
+		$res = $stm->fetch(PDO::FETCH_NAMED);
+
+		return round($res['average'], 2);
+	}
+
 	/**
 	 * Initialize an array for the entry count.
 	 *
@@ -160,7 +181,7 @@ SQL;
 	public function calculateEntryAveragePerFeedPerHour($feed = null) {
 		return $this->calculateEntryAveragePerFeedPerPeriod(1/24, $feed);
 	}
-	
+
 	/**
 	 * Calculates the average number of article per day of week per feed
 	 *
@@ -180,10 +201,10 @@ SQL;
 	public function calculateEntryAveragePerFeedPerMonth($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

app/Models/StatsDAOSQLite.php

@@ -34,6 +34,29 @@ SQL;
 		return $this->convertToSerie($count);
 	}
 
+	/**
+	 * Calculates entry average per day on a 30 days period.
+	 *
+	 * @return integer
+	 */
+	public function calculateEntryAverage() {
+		$period = self::ENTRY_COUNT_PERIOD;
+
+		// Get stats per day for the last 30 days
+		$sql = <<<SQL
+SELECT COUNT(1) / {$period} AS average
+FROM {$this->prefix}entry AS e
+WHERE strftime('%Y%m%d', e.date, 'unixepoch')
+	BETWEEN strftime('%Y%m%d', 'now', '-{$period} days')
+	AND strftime('%Y%m%d', 'now', '-1 day')
+SQL;
+		$stm = $this->bd->prepare($sql);
+		$stm->execute();
+		$res = $stm->fetch(PDO::FETCH_NAMED);
+
+		return round($res['average'], 2);
+	}
+
 	protected function calculateEntryRepartitionPerFeedPerPeriod($period, $feed = null) {
 		if ($feed) {
 			$restrict = "WHERE e.id_feed = {$feed}";

app/views/stats/index.phtml

@@ -93,12 +93,22 @@ function initStats() {
 		return;
 	}
 	// Entry per day
+	var avg = [];
+	for (var i = -31; i <= 0; i++) {
+		avg.push([i, <?php echo $this->average?>]);
+	}
 	Flotr.draw(document.getElementById('statsEntryPerDay'),
-		[<?php echo $this->count ?>],
+		[{
+			data: <?php echo $this->count ?>,
+			bars: {horizontal: false, show: true}
+		},{
+			data: avg,
+			lines: {show: true},
+			label: <?php echo $this->average?>
+		}],
 		{
 			grid: {verticalLines: false},
-			bars: {horizontal: false, show: true},
-			xaxis: {noTicks: 6, showLabels: false, tickDecimals: 0},
+			xaxis: {noTicks: 6, showLabels: false, tickDecimals: 0, min: -30.75, max: -0.25},
 			yaxis: {min: 0},
 			mouse: {relative: true, track: true, trackDecimals: 0, trackFormatter: function(obj) {return numberFormat(obj.y);}}
 		});