Your IP : 216.73.216.145
<?php
/**
* Fabrik Chart Viz Model
*
* @package Joomla.Plugin
* @subpackage Fabrik.visualization.chart
* @copyright Copyright (C) 2005-2020 Media A-Team, Inc. - All rights reserved.
* @license GNU/GPL http://www.gnu.org/copyleft/gpl.html
*/
// No direct access
defined('_JEXEC') or die('Restricted access');
jimport('joomla.application.component.model');
require_once JPATH_SITE . '/components/com_fabrik/models/visualization.php';
/**
* Fabrik Chart Plug-in Model
*
* @package Joomla.Plugin
* @subpackage Fabrik.visualization.chart
* @since 3.0
*/
class FabrikModelChart extends FabrikFEModelVisualization
{
/**
* Google charts api url
*
* @var string
*/
protected $url = 'http://chart.apis.google.com/chart';
/**
* Get min and max values form totals
*
* @param array $totals Totals
*
* @return array
*/
private function _getMinMax($totals)
{
// $min will only go lower if data is negative!
$max = 0;
$min = 0;
foreach ($totals as $tots)
{
if (max($totals) > $max)
{
$max = max($totals);
}
if (min($totals) < $min)
{
$min = min($totals);
}
}
return array('min' => $min, 'max' => $max);
}
/**
* Get min and max values form totals
*
* @param array $gdata Grouped data
* @param array $gsums Sums
*
* @return array
*/
protected function getMinMax($gdata, $gsums)
{
$calcfound = $this->getCalcFound();
// @TODO if showing a chart that is displaying a summed element then the max is returned as the total
// of that elements summed values which is incorrect
$minmax = $calcfound ? $this->_getMinMax($gsums) : $this->_getMinMax(explode(",", $gdata[0]));
return $minmax;
}
/**
* Get the chart
*
* @return string
*/
public function getChart()
{
$params = $this->getParams();
$this->calc_prefixmap = array('sum___' => 'sums', 'avg___' => 'avgs', 'med___' => 'medians', 'cnt___' => 'count');
$w = (int) $params->get('chart_width', 200);
$h = (int) $params->get('chart_height', 200);
$graph = $params->get('graph_type');
$fillGraphs = $params->get('fill_line_graph');
$x_axis_label = (array) $params->get('x_axis_label');
$chartElements = (array) $params->get('chart_elementList');
$legends = $params->get('graph_show_legend', '');
$chxl_override = $params->get('chart_chxl', '');
$chxl_override = trim(str_replace(',', '|', $chxl_override), ',');
$chds_override = $params->get('chart_chds', '');
$chds_override = trim(str_replace('|', ',', $chds_override), '|');
$chg_override = $params->get('chart_chg', '');
$chm_override = $params->get('chart_chm', '');
$chma_override = $params->get('chart_chma', '');
$c = 0;
$gdata = array();
$glabels = array();
$max = 0;
$min = 0;
$calculationData = array();
$tableDatas = $this->getTableData();
foreach ($tableDatas as $tableData)
{
$alldata = $tableData['data'];
$cals = $tableData['cals'];
$column = $chartElements[$c];
$listModel = $tableData['model'];
$pref = substr($column, 0, 6);
$label = FArrayHelper::getValue($x_axis_label, $c, '');
$tmpgdata = array();
$calcfound = $this->getCalcFound();
if ($calcfound)
{
$column = JString::substr($column, 6);
}
$elements = $listModel->getElements('filtername');
$safename = FabrikString::safeColName($column);
$colElement = $elements[$safename];
if ($calcfound)
{
$calckey = $this->calc_prefixmap[$pref];
/*
* you shouldn't mix calculation elements with normal elements when creating the chart
* so if ONE calculation element is found we use the calculation data rather than normal element data
* this is because a calculation element only generates one value, if want to compare two averages then
* they get rendered as two groups of data and on bar charts this overlays one average over the other, rather than next to it
*/
// $calcfound = true;
$caldata = $cals[$calckey][$column . '_obj'];
if (is_array($caldata))
{
foreach ($caldata as $k => $o)
{
if ($k !== 'Total')
{
$calculationData[] = $colElement->getCalculationValue($o->value);
}
}
}
$gdata[$c] = implode(',', $tmpgdata);
// $$$ hugh - playing around with pie charts
$gsums[$c] = array_sum($calculationData);
}
else
{
$origColumn = $column;
// _raw fields are most likely to contain the value
$column .= "_raw";
foreach ($alldata as $group)
{
foreach ($group as $row)
{
if (!array_key_exists($column, $row))
{
// Didn't find a _raw column - revert to orig
$column = $origColumn;
if (!array_key_exists($column, $row))
{
JError::raiseWarning(E_NOTICE, $column . ': NOT FOUND - PLEASE CHECK IT IS PUBLISHED');
continue;
}
}
if (trim($row->$column) == '')
{
$tmpgdata[] = -1;
}
else
{
$tmpgdata[] = $colElement->getCalculationValue($row->$column);
}
}
$gdata[$c] = implode(',', $tmpgdata);
// $$$ hugh - playing around with pie charts
$gsums[$c] = array_sum($tmpgdata);
}
}
$c++;
}
if ($calcfound)
{
$gdata = array(implode(',', $calculationData));
}
/*
* $$$ hugh - pie chart data has to be summed - the API only takes a
* single dataset for pie charts. And it doesn't make sense trying to
* chart individual row data for multiple elements in a pie chart.
*/
switch ($graph)
{
case 'p':
case 'p3':
list($chd, $chxl, $chds, $fillGraphs) = $this->pieChart($c, $gdata, $gsums);
break;
case 'bhs':
list($chd, $chxl, $chds) = $this->horizontalBarChart($c, $gdata, $gsums);
break;
default:
list($chd, $chxl, $chds) = $this->defaultChart($c, $gdata, $gsums);
break;
}
list($colours, $fills) = $this->getColours();
$return = '<img src="' . $this->url . '?';
$qs = 'chs=' . $w . 'x' . $h;
$qs .= '&chd=t:' . $chd;
$qs .= '&cht=' . $graph;
$qs .= '&chco=' . $colours;
$qs .= '&chxt=x,y';
$qs .= '&chxl=' . $chxl;
$qs .= '&chds=' . $chds;
if (!empty($chm_override))
{
$qs .= '&chm=' . $chm_override;
}
if (!empty($chma_override))
{
$qs .= '&chma=' . $chma_override;
}
elseif ($fillGraphs)
{
$qs .= '&chm=' . implode('|', $fills);
}
if ($legends)
{
$qs .= '&chdl=' . implode('|', $this->getAxisLabels($c));
}
if (!empty($chg_override))
{
$qs .= '&chg=' . $chg_override;
}
elseif ($fillGraphs)
{
$qs .= '&chm=' . implode('|', $fills);
}
$qs .= '&' . $params->get('chart_custom');
$return .= $qs . '" alt="' . $this->getRow()->label . '" />';
$this->image = $return;
return $return;
}
/**
* Get the chart colours
*
* @return array(colours, fills)
*/
protected function getColours()
{
$params = $this->getParams();
$fillGraphs = $params->get('fill_line_graph');
$chartColours = (array) $params->get('chart_colours');
$gcolours = array();
$fills = array();
$calcfound = $this->getCalcFound();
$tableDatas = $this->getTableData();
for ($c = 0; $c < count($tableDatas); $c++)
{
$colour = FArrayHelper::getValue($chartColours, $c, '');
$colour = str_replace("#", '', $colour);
if ($fillGraphs)
{
$c2 = $c + 1;
$fills[] = 'b,' . $colour . "," . $c . "," . $c2 . ",0";
}
$gcolours[] = $colour;
}
$colours = implode(($calcfound ? '|' : ','), $gcolours);
return array($colours, $fills);
}
/**
* Get code to form horizontal bar chart
*
* @param int $c Total data sets
* @param array $gdata Grouped data
* @param array $gsums Summed data
*
* @return array
*/
protected function horizontalBarChart($c, $gdata, $gsums)
{
$params = $this->getParams();
$chartWidth = (int) $params->get('chart_width', 200);
$chds_override = $params->get('chart_chds', '');
$chds_override = trim(str_replace('|', ',', $chds_override), '|');
$axisLabels = implode("|", $this->getAxisLabels($c));
$calcfound = $this->getCalcFound();
$measurement_unit = FArrayHelper::getValue($measurement_units, $c, '');
$minmax = $this->getMinMax($gdata, $gsums);
$chd = implode('|', $gdata);
if (!empty($chds_override))
{
$chds = $chds_override;
}
else
{
$chds = $minmax['min'] . ',' . $minmax['max'];
}
// Set the bar heights to auto so that they scale to fit inside chart area.
$chd .= '&chbh=a';
// $$$ hugh - we have to reverse the labels for horizontal bar charts
$axisLabels = implode('|', array_reverse(explode('|', $axisLabels)));
if (empty($chxl_override))
{
$chxl = '0:|' . $minmax['min'] . '|' . $minmax['max'] . $measurement_unit . '|' . '1:|' . $axisLabels;
}
else
{
$chxl = '0:|' . $chxl_override . '|' . '1:|' . $axisLabels;
}
return array($chd, $chxl, $chds);
}
/**
* Get some data for the default chart types
*
* @param int $c Total data sets
* @param array $gdata Data
* @param array $gsums Calcs
*
* @return array
*/
protected function defaultChart($c, $gdata, $gsums)
{
$params = $this->getParams();
$minmax = $this->getMinMax($gdata, $gsums);
$measurement_unit = FArrayHelper::getValue($measurement_units, $c, '');
$chds_override = $params->get('chart_chds', '');
if (preg_match('#^\d+,$#', $chds_override))
{
$chds_override .= $minmax['max'];
}
$chds_override = trim(str_replace('|', ',', $chds_override), '|');
$axisLabels = implode("|", $this->getAxisLabels($c));
$chxl_override = $params->get('chart_chxl', '');
$chxl_override = trim(str_replace(',', '|', $chxl_override), ',');
if (empty($chxl_override) && !empty($chds_override))
{
$chxl_override = str_replace(',', '|', $chds_override);
}
$chd = implode('|', $gdata);
if (empty($chxl_override))
{
$chxl = '0:|' . $axisLabels . '|1:|' . $minmax['min'] . '|' . $minmax['max'] . $measurement_unit;
}
else
{
$chxl = '0:|' . $axisLabels . '|1:|' . $chxl_override;
}
if (!empty($chds_override))
{
$chds = $chds_override;
}
else
{
$chds = $minmax['min'] . ',' . $minmax['max'];
}
return array($chd, $chxl, $chds);
}
/**
* Grab the tables and get their data, calculations etc.
*
* @return array table info and data.
*/
private function getTableData()
{
if (!isset($this->tableData))
{
$tmodels = array();
$this->tableData = array();
$params = $this->getParams();
$listid = (array) $params->get('chart_table');
$chartWheres = (array) $params->get('chart_where');
$c = 0;
foreach ($listid as $lid)
{
if (!array_key_exists($lid, $tmodels))
{
$listModel = null;
$listModel = JModelLegacy::getInstance('List', 'FabrikFEModel');
$listModel->setId($lid);
$tmodels[$lid] = $listModel;
}
else
{
$listModel = $tmodels[$lid];
}
$list = $listModel->getTable();
$form = $listModel->getForm();
// $$$ hugh - testing hack to let plugins add WHERE clauses
if (array_key_exists($c, $chartWheres) && !empty($chartWheres[$c]))
{
$listModel->setPluginQueryWhere('chart', $chartWheres[$c]);
}
else
{
// If no where clause, explicitly clear any previously set clause
$listModel->unsetPluginQueryWhere('chart');
}
// Remove filters?
// $$$ hugh - pagination must be done BEFORE calling render(), to avoid caching issues from session data.
$listModel->setLimits(0, 0);
$listModel->getPagination(0, 0, 0);
$listModel->render();
$alldata = $listModel->getData();
$cals = $listModel->getCalculations();
$this->tableData[$c] = array('id' => $lid, 'data' => $alldata, 'cals' => $cals, 'model' => $listModel);
$c++;
}
}
return $this->tableData;
}
/**
* Get Axis Labels
*
* @param int $total Total?
*
* @return array axis labels
*/
private function getAxisLabels($total)
{
if (isset($this->axisLabels))
{
return $this->axisLabels;
}
$params = $this->getParams();
$graph = $params->get('graph_type');
$chartElements = (array) $params->get('chart_elementList');
$x_axis_label = (array) $params->get('x_axis_label');
$tableDatas = $this->getTableData();
$calculationLabels = array();
$c = 0;
foreach ($tableDatas as $tableData)
{
$alldata = $tableData['data'];
$cals = $tableData['cals'];
$column = $chartElements[$c];
$listModel = $tableData['model'];
$pref = substr($column, 0, 6);
$label = FArrayHelper::getValue($x_axis_label, $c, '');
$tmpglabels = array();
$calcfound = $this->getCalcFound();
if ($calcfound)
{
$column = JString::substr($column, 6);
}
if ($calcfound)
{
$calckey = $this->calc_prefixmap[$pref];
$caldata = $cals[$calckey][$column . '_obj'];
if (is_array($caldata))
{
foreach ($caldata as $k => $o)
{
$calculationLabels[] = trim(strip_tags($o->label));
}
}
$glabels[$c] = implode('|', $calculationLabels);
}
else
{
// _raw fields are most likely to contain the value
$column = $column . "_raw";
foreach ($alldata as $group)
{
foreach ($group as $row)
{
$tmpglabels[] = !empty($label) ? strip_tags($row->$label) : '';
}
$glabels[$c] = implode('|', $tmpglabels);
}
}
$c++;
}
if ($calcfound)
{
if (!empty($calculationLabels))
{
$calculationLabels = array_reverse($calculationLabels);
$glabels = array(implode('|', array_reverse($calculationLabels)));
}
}
switch ($graph)
{
case 'p':
case 'p3':
$legends = $params->get('graph_show_legend', '');
if ($total > 1)
{
$axisLabels = (array) $params->get('chart_axis_labels');
}
else
{
$axisLabels = explode('|', $glabels[0]);
}
break;
default:
if ($calcfound)
{
$axisLabels = explode('|', $glabels[0]);
}
else
{
$axisLabels = explode('|', $glabels[0]);
}
}
$this->axisLabels = $axisLabels;
return $axisLabels;
}
/**
* Test if calculations exist
*
* @return boolean
*/
private function getCalcFound()
{
if (!isset($this->calcfound))
{
$this->calcfound = false;
$params = $this->getParams();
$chartElements = (array) $params->get('chart_elementList');
$listid = (array) $params->get('chart_table');
$calc_prefixes = array('sum___', 'avg___', 'med___', 'cnt___');
for ($c = 0; $c < count($listid); $c++)
{
$column = $chartElements[$c];
$pref = substr($column, 0, 6);
if (in_array($pref, $calc_prefixes))
{
$this->calcfound = true;
break;
}
}
}
return $this->calcfound;
}
/**
* Make a pie chart
*
* @param int $c Total data sets
* @param array $gdata Data
* @param array $gsums Calcs
*
* @return array
*/
protected function pieChart($c, $gdata, $gsums)
{
$params = $this->getParams();
$legends = $params->get('graph_show_legend', '');
$fillGraphs = false;
$axisLabels = $this->getAxisLabels($c);
if ($c > 1)
{
/*
* multiple table/elements, so use the sums
* need to scale our data into percentages
*/
$tot_sum = array_sum($gsums);
$percs = array();
foreach ($gsums as $sum)
{
$percs[] = sprintf('%01.2f', ($sum / $tot_sum) * 100);
}
$chd = implode(',', $percs);
if ($legends)
{
$chxl = '0:|' . implode('|', $gsums);
}
else
{
$chxl = '0:|' . implode('|', $axisLabels);
}
$chds = '';
}
else
{
// Single table/elements, so use the row data
$gsums = explode(',', $gdata[0]);
// Scale to percentages
$tot_sum = array_sum($gsums);
$percs = array();
foreach ($gsums as $sum)
{
if ($tot_sum > 0)
{
$percs[] = sprintf('%01.2f', ($sum / $tot_sum) * 100);
}
else
{
$percs[] = 0.00;
}
}
$chd = implode(',', $percs);
if ($legends)
{
$chxl = '0:|' . implode('|', $gsums);
}
else
{
$chxl = '0:|' . implode('|', $axisLabels);
}
$chds = '';
}
$chds = '0,360';
return array($chd, $chxl, $chds, $fillGraphs);
}
/**
* Set an array of list id's whose data is used inside the visualization
*
* @return void
*/
protected function setListIds()
{
if (!isset($this->listids))
{
$params = $this->getParams();
$this->listids = (array) $params->get('chart_table');
}
}
}