Stats: replace flotr2 with chart.js (#3858)

* include Chart.js

* page: main statistics. Flotr.js replaced with Chart.js

* main stats + repartition

* Delete: repartition.js + stats.js

* delete flotr2

* add libs in README

* polish

* code polish

* fixed amount of week days and months

* added manget link for LibreJS

* added: @license-end

* phpcbf + jshint formatting

* delete old code

* fix stats

* fix Comments

* finally I found the issue and fixed its best

* fix the month stats

* Whitespace fixes

* Remove flotr2

* Rename to chart.min.js

* Remove console.log

Co-authored-by: Alexandre Alapetite <alexandre@alapetite.fr>

1 files changed, 24 insertions, 6 deletions

diff --git a/app/Models/StatsDAO.php b/app/Models/StatsDAO.php
index 824535c2d..33e5426b5 100644
--- a/app/Models/StatsDAO.php
+++ b/app/Models/StatsDAO.php
@@ -98,7 +98,7 @@ SQL;
 	 * Calculates the number of article per hour of the day per feed
 	 *
 	 * @param integer $feed id
-	 * @return string
+	 * @return array
 	 */
 	public function calculateEntryRepartitionPerFeedPerHour($feed = null) {
 		return $this->calculateEntryRepartitionPerFeedPerPeriod('%H', $feed);
@@ -108,7 +108,7 @@ SQL;
 	 * Calculates the number of article per day of week per feed
 	 *
 	 * @param integer $feed id
-	 * @return string
+	 * @return array
 	 */
 	public function calculateEntryRepartitionPerFeedPerDayOfWeek($feed = null) {
 		return $this->calculateEntryRepartitionPerFeedPerPeriod('%w', $feed);
@@ -118,18 +118,22 @@ SQL;
 	 * Calculates the number of article per month per feed
 	 *
 	 * @param integer $feed
-	 * @return string
+	 * @return array
 	 */
 	public function calculateEntryRepartitionPerFeedPerMonth($feed = null) {
-		return $this->calculateEntryRepartitionPerFeedPerPeriod('%m', $feed);
+		$monthRepartition = $this->calculateEntryRepartitionPerFeedPerPeriod('%m', $feed);
+		// cut out the 0th month (Jan=1, Dec=12)
+		\array_splice($monthRepartition, 0, 1);
+		return $monthRepartition;
 	}
 
+
 	/**
 	 * Calculates the number of article per period per feed
 	 *
 	 * @param string $period format string to use for grouping
 	 * @param integer $feed id
-	 * @return string
+	 * @return array
 	 */
 	protected function calculateEntryRepartitionPerFeedPerPeriod($period, $feed = null) {
 		$restrict = '';
@@ -148,7 +152,21 @@ SQL;
 		$stm = $this->pdo->query($sql);
 		$res = $stm->fetchAll(PDO::FETCH_NAMED);
 
-		$repartition = array();
+		switch ($period) {
+			case '%H':
+				$periodMax = 24;
+				break;
+			case '%w':
+				$periodMax = 7;
+				break;
+			case '%m':
+				$periodMax = 12;
+				break;
+			default:
+			$periodMax = 30;
+		}
+
+		$repartition = array_fill(0, $periodMax, 0);
 		foreach ($res as $value) {
 			$repartition[(int) $value['period']] = (int) $value['count'];
 		}