First version of the new statistics page

- shows a heatmap of user activity based on the logs
- can show it for all users or for users of a specific org

app/Controller/LogsController.php

@@ -221,4 +221,27 @@ class LogsController extends AppController {
 			$this->render('admin_index');
 		}
 	}
+
+	public function returnDates($startDate, $endDate, $org = 'all') {
+		$startDate = date('Y-m-d H:i:s', $startDate);
+		$endDate = date('Y-m-d H:i:s', $endDate);
+		$conditions = array();
+		$conditions = array('created <' => $endDate, 'created >' => $startDate);
+		if ($org !== 'all') $conditions['org'] = $org;
+		$validDates = $this->Log->find('all', array(
+				'fields' => array('created'),
+				'conditions' => $conditions,
+		));
+		$data = array();
+		foreach ($validDates as $k => $date) {
+			$temp = strtotime("0:00", strtotime($date['Log']['created']));
+			if (array_key_exists($temp, $data)) {
+				$data[$temp]++;
+			} else {
+				$data[$temp] = 1;
+			}
+		}
+		$this->set('data', $data);
+		$this->set('_serialize', 'data');
+	}
 }

app/Controller/UsersController.php

@@ -743,4 +743,23 @@ class UsersController extends AppController {
 		}
 		// User didn't see the contact form yet. Present it to him.
 	}
+
+	// shows some statistics about the instance
+	public function statistics() {
+		$this->User->recursive = -1;
+		$orgs = $this->User->find('all', array('fields' => array('DISTINCT (org) AS org')));
+		$this->loadModel('Log');
+		$year = date('Y');
+		$month = date('n');
+		$day = date('j');
+		$month = $month - 5;
+		if ($month < 1) {
+			$year--;
+			$month = 12 + $month;
+		}
+		$this->set('orgs', $orgs);
+		$this->set('start', strtotime(date('Y-m-d H:i:s') . ' -5 months'));
+		$this->set('end', strtotime(date('Y-m-d H:i:s')));
+		$this->set('startDateCal', $year . ', ' . $month . ', 01');
+	}
 }

app/View/Elements/side_menu.ctp

@@ -107,6 +107,7 @@
 					<li <?php if ($menuItem === 'members') echo 'class="active";'?>><a href="/users/memberslist">Members List</a></li>
 					<li <?php if ($menuItem === 'userGuide') echo 'class="active";'?>><a href="/pages/display/doc/general">User Guide</a></li>
 					<li <?php if ($menuItem === 'terms') echo 'class="active";'?>><a href="/users/terms">Terms &amp; Conditions</a></li>
+					<li <?php if ($menuItem === 'statistics') echo 'class="active";'?>><a href="/users/statistics">Statistics</a></li>
 					<?php 
 				break;