add icons for Character groups

www/analytics/plugins/ExampleUI/API.php

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+<?php
+/**
+ * Piwik - Open source web analytics
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ */
+namespace Piwik\Plugins\ExampleUI;
+
+use Piwik\DataTable;
+use Piwik\Date;
+use Piwik\Period\Range;
+
+/**
+ * ExampleUI API is also an example API useful if you are developing a Piwik plugin.
+ *
+ * The functions listed in this API are returning the data used in the Controller to draw graphs and
+ * display tables. See also the ExampleAPI plugin for an introduction to Piwik APIs.
+ *
+ * @method static \Piwik\Plugins\ExampleUI\API getInstance()
+ */
+class API extends \Piwik\Plugin\API
+{
+    public static $disableRandomness = false;
+
+    public function getTemperaturesEvolution($date, $period)
+    {
+        $temperatures = array();
+
+        $date   = Date::factory('2013-10-10', 'UTC');
+        $period = new Range($period, 'last30');
+        $period->setDefaultEndDate($date);
+
+        foreach ($period->getSubperiods() as $subPeriod) {
+            if (self::$disableRandomness) {
+                $server1 = 50;
+                $server2 = 40;
+            } else {
+                $server1 = mt_rand(50, 90);
+                $server2 = mt_rand(40, 110);
+            }
+
+            $value = array('server1' => $server1, 'server2' => $server2);
+
+            $temperatures[$subPeriod->getLocalizedShortString()] = $value;
+        }
+
+        return DataTable::makeFromIndexedArray($temperatures);
+    }
+
+    public function getTemperatures()
+    {
+        $xAxis = array(
+            '0h', '1h', '2h', '3h', '4h', '5h', '6h', '7h', '8h', '9h', '10h', '11h',
+            '12h', '13h', '14h', '15h', '16h', '17h', '18h', '19h', '20h', '21h', '22h', '23h',
+        );
+
+        $temperatureValues = array_slice(range(50, 90), 0, count($xAxis));
+        if (!self::$disableRandomness) {
+            shuffle($temperatureValues);
+        }
+
+        $temperatures = array();
+        foreach ($xAxis as $i => $xAxisLabel) {
+            $temperatures[$xAxisLabel] = $temperatureValues[$i];
+        }
+
+        return DataTable::makeFromIndexedArray($temperatures);
+    }
+
+    public function getPlanetRatios()
+    {
+        $planetRatios = array(
+            'Mercury' => 0.382,
+            'Venus'   => 0.949,
+            'Earth'   => 1.00,
+            'Mars'    => 0.532,
+            'Jupiter' => 11.209,
+            'Saturn'  => 9.449,
+            'Uranus'  => 4.007,
+            'Neptune' => 3.883,
+        );
+
+        return DataTable::makeFromIndexedArray($planetRatios);
+    }
+
+    public function getPlanetRatiosWithLogos()
+    {
+        $planetsDataTable = $this->getPlanetRatios();
+
+        foreach ($planetsDataTable->getRows() as $row) {
+            $logo = sprintf('plugins/ExampleUI/images/icons-planet/%s.png', strtolower($row->getColumn('label')));
+            $url = sprintf('http://en.wikipedia.org/wiki/%s', $row->getColumn('label'));
+
+            $row->addMetadata('logo', $logo);
+            $row->addMetadata('url', $url);
+        }
+
+        return $planetsDataTable;
+    }
+}