public function chartDataAction()
 {
     // Disable layout and viewrenderer
     $this->_helper->layout->disableLayout();
     $this->_helper->viewRenderer->setNoRender(true);
     // Get params
     $type = $this->_getParam('type');
     $start = $this->_getParam('start');
     $offset = $this->_getParam('offset', 0);
     $mode = $this->_getParam('mode');
     $chunk = $this->_getParam('chunk');
     $period = $this->_getParam('period');
     $periodCount = $this->_getParam('periodCount', 1);
     //$end = $this->_getParam('end');
     // Validate chunk/period
     if (!$chunk || !in_array($chunk, $this->_periods)) {
         $chunk = Zend_Date::DAY;
     }
     if (!$period || !in_array($period, $this->_periods)) {
         $period = Zend_Date::MONTH;
     }
     if (array_search($chunk, $this->_periods) >= array_search($period, $this->_periods)) {
         die('whoops');
         return;
     }
     // Validate start
     if ($start && !is_numeric($start)) {
         $start = strtotime($start);
     }
     if (!$start) {
         $start = time();
     }
     // Fixes issues with month view
     Zend_Date::setOptions(array('extend_month' => true));
     // Get timezone
     $timezone = Engine_Api::_()->getApi('settings', 'core')->getSetting('core_locale_timezone', 'GMT');
     $viewer = Engine_Api::_()->user()->getViewer();
     if ($viewer && $viewer->getIdentity() && !empty($viewer->timezone)) {
         $timezone = $viewer->timezone;
     }
     // Make start fit to period?
     $startObject = new Zend_Date($start);
     $startObject->setTimezone($timezone);
     $partMaps = $this->_periodMap[$period];
     foreach ($partMaps as $partType => $partValue) {
         $startObject->set($partValue, $partType);
     }
     // Do offset
     if ($offset != 0) {
         $startObject->add($offset, $period);
     }
     // Get end time
     $endObject = new Zend_Date($startObject->getTimestamp());
     $endObject->setTimezone($timezone);
     $endObject->add($periodCount, $period);
     $endObject->sub(1, Zend_Date::SECOND);
     // Subtract one second
     // Get data
     $statsTable = Engine_Api::_()->getDbtable('statistics', 'core');
     $statsSelect = $statsTable->select()->where('type = ?', $type)->where('date >= ?', gmdate('Y-m-d H:i:s', $startObject->getTimestamp()))->where('date < ?', gmdate('Y-m-d H:i:s', $endObject->getTimestamp()))->order('date ASC');
     $rawData = $statsTable->fetchAll($statsSelect);
     // Now create data structure
     $currentObject = clone $startObject;
     $nextObject = clone $startObject;
     $data = array();
     $dataLabels = array();
     $cumulative = 0;
     $previous = 0;
     do {
         $nextObject->add(1, $chunk);
         $currentObjectTimestamp = $currentObject->getTimestamp();
         $nextObjectTimestamp = $nextObject->getTimestamp();
         $data[$currentObjectTimestamp] = $cumulative;
         // Get everything that matches
         $currentPeriodCount = 0;
         foreach ($rawData as $rawDatum) {
             $rawDatumDate = strtotime($rawDatum->date);
             if ($rawDatumDate >= $currentObjectTimestamp && $rawDatumDate < $nextObjectTimestamp) {
                 $currentPeriodCount += $rawDatum->value;
             }
         }
         // Now do stuff with it
         switch ($mode) {
             default:
             case 'normal':
                 $data[$currentObjectTimestamp] = $currentPeriodCount;
                 break;
             case 'cumulative':
                 $cumulative += $currentPeriodCount;
                 $data[$currentObjectTimestamp] = $cumulative;
                 break;
             case 'delta':
                 $data[$currentObjectTimestamp] = $currentPeriodCount - $previous;
                 $previous = $currentPeriodCount;
                 break;
         }
         $currentObject->add(1, $chunk);
     } while ($currentObject->getTimestamp() < $endObject->getTimestamp());
     // Reprocess label
     $labelStrings = array();
     $labelDate = new Zend_Date();
     foreach ($data as $key => $value) {
         $labelDate->set($key);
         $labelStrings[] = $this->view->locale()->toDate($labelDate, array('size' => 'short'));
         //date('D M d Y', $key);
     }
     // Let's expand them by 1.1 just for some nice spacing
     $minVal = min($data);
     $maxVal = max($data);
     $minVal = floor($minVal * ($minVal < 0 ? 1.1 : 1 / 1.1) / 10) * 10;
     $maxVal = ceil($maxVal * ($maxVal > 0 ? 1.1 : 1 / 1.1) / 10) * 10;
     // Remove some labels if there are too many
     $xlabelsteps = 1;
     if (count($data) > 10) {
         $xlabelsteps = ceil(count($data) / 10);
     }
     // Remove some grid lines if there are too many
     $xsteps = 1;
     if (count($data) > 100) {
         $xsteps = ceil(count($data) / 100);
     }
     // Create base chart
     require_once 'OFC/OFC_Chart.php';
     // Make x axis labels
     $x_axis_labels = new OFC_Elements_Axis_X_Label_Set();
     $x_axis_labels->set_steps($xlabelsteps);
     $x_axis_labels->set_labels($labelStrings);
     // Make x axis
     $labels = new OFC_Elements_Axis_X();
     $labels->set_labels($x_axis_labels);
     $labels->set_colour("#416b86");
     $labels->set_grid_colour("#dddddd");
     $labels->set_steps($xsteps);
     // Make y axis
     $yaxis = new OFC_Elements_Axis_Y();
     $yaxis->set_range($minVal, $maxVal);
     $yaxis->set_colour("#416b86");
     $yaxis->set_grid_colour("#dddddd");
     // Make data
     $graph = new OFC_Charts_Line();
     $graph->set_values(array_values($data));
     $graph->set_colour("#5ba1cd");
     // Make title
     $locale = Zend_Registry::get('Locale');
     $translate = Zend_Registry::get('Zend_Translate');
     $titleStr = $translate->_('_CORE_ADMIN_STATS_' . strtoupper(trim(preg_replace('/[^a-zA-Z0-9]+/', '_', $type), '_')));
     $title = new OFC_Elements_Title($titleStr . ': ' . $this->view->locale()->toDateTime($startObject) . ' to ' . $this->view->locale()->toDateTime($endObject));
     $title->set_style("{font-size: 14px;font-weight: bold;margin-bottom: 10px; color: #777777;}");
     // Make full chart
     $chart = new OFC_Chart();
     $chart->set_bg_colour('#ffffff');
     $chart->set_x_axis($labels);
     $chart->add_y_axis($yaxis);
     $chart->add_element($graph);
     $chart->set_title($title);
     // Send
     $this->getResponse()->setBody($chart->toPrettyString());
 }
 public function toObject()
 {
     $this->consolidateParameters();
     $xAxisLabels = new OFC_Elements_Axis_X_Label_Set();
     $xAxisLabels->set_labels($this->labels);
     $xAxisLabels->set_size(10);
     $xAxisLabels->set_colour('#444444');
     $xAxisLabels->set_steps($this->stepsX);
     $xAxis = new OFC_Elements_Axis_X();
     $xAxis->set_steps($this->stepsX);
     $xAxis->set_labels($xAxisLabels);
     $xAxis->set_colour('#CCCCCC');
     $xAxis->set_grid_colour('#AAAAAA');
     $this->chart->set_x_axis($xAxis);
     $yAxis = new OFC_Elements_Axis_Y();
     $yAxis->set_range($this->min1, $this->max1);
     $yAxis->set_colour('#AAAAAA');
     $yAxis->set_grid_colour('#AAAAAA');
     $yAxis->set_steps($this->stepsY1);
     $this->chart->set_y_axis($yAxis);
     $yLegend = new OFC_Elements_Legend_Y($this->data1->getName());
     //$this->chart->set_y_legend($yLegend); // does not work now
     // data 1
     $this->chart->add_element($this->createGraph($this->data1));
     if ($this->hasTwoDataLines()) {
         $yAxisRight = new OFC_Elements_Axis_Y_Right();
         $yAxisRight->set_range($this->min2, $this->max2);
         $yAxisRight->set_colour('#AAAAAA');
         $yAxisRight->set_steps($this->stepsY2);
         //            $this->chart->set_y_axis_right($yAxisRight);
         $this->chart->add_element($this->createGraph($this->data2));
     }
     return $this->chart;
 }