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graph_google.php
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graph_google.php
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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* This file is used to make the graph using the Google API
*
* @package block
* @subpackage graph_stats
* @copyright 2011 Éric Bugnet with help of Jean Fruitet
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die;
function graph_google($course_id,$title) {
global $CFG,$DB;
// Get parameters
/**
* number of day for the graph
* @var integer
*/
$daysnb = $CFG->daysnb;
/**
* width of the the graph
* @var integer
*/
$graphwidth = $CFG->graphwidth;
/**
* height of the the graph
* @var integer
*/
$graphheight = $CFG->graphheight;
/**
* does I have to print multiconnexion in the front page ?
* @var boolean
*/
$multi = $CFG->multi;
/**
* color of outer background
* @var string
*/
$color_outer_background = $CFG->outer_background;
/**
* color of inner background
* @var string
*/
$color_inner_background = $CFG->inner_background;
/**
* color of inner border
* @var string
*/
$color_inner_border = $CFG->inner_border;
/**
* color of axis
* @var string
*/
$color_axis_colour = $CFG->axis_colour;
/**
* color of first graph
* @var string
*/
$color1 = $CFG->color1;
/**
* color of second graph
* @var string
*/
$color2 = $CFG->color2;
/**
* style of the graph
* @var string
*/
$style = $CFG->style;
// define type
if ($style == 'area') {
$type1 = 'area';
$type2 = 'area';
} else {
$type1 = 'bars';
$type2 = 'line';
}
$days = array();
$day = array();
$logs = array();
$logs_multi = array();
// Let's get the datas
$a=0;
if ($course_id>1) {
for ($i=$daysnb;$i>-1;$i--) { // Days count
$params=array(
'time1' => mktime(0, 0, 0, date("m") , date("d") - $i, date("Y")),
'time2' => mktime(0, 0, 0, date("m") , date("d") - ($i-1), date("Y")),
'courseid' => $course_id );
$sql="SELECT COUNT(DISTINCT(userid)) as countid FROM {log} WHERE time > :time1 AND time < :time2 AND action = 'view' AND course = :courseid ";
$countgraph_multi = $DB->get_record_sql($sql, $params);
$days[$a] = '';
$logs_multi[$a] = $countgraph_multi->countid;
$day[$a] = substr(userdate(mktime(0, 0, 0, date("m") , date("d") - $i, date("Y"))),0,-7);
$a = $a+1;
}
} else {
For ($i=$daysnb;$i>-1;$i--) { // Days count
$params=array(
'time1' => mktime(0, 0, 0, date("m") , date("d") - $i, date("Y")),
'time2' => mktime(0, 0, 0, date("m") , date("d") - ($i-1), date("Y")),
'courseid' => $course_id );
$sql= "SELECT COUNT(DISTINCT(userid)) as countid FROM {log} WHERE time > :time1 AND time < :time2 AND action = 'login' ";
$countgraph = $DB->get_record_sql($sql, $params);
$days[$a] = '';
$logs[$a] = $countgraph->countid;
if ($multi==1) {
$params=array(
'time1' => mktime(0, 0, 0, date("m") , date("d") - $i, date("Y")),
'time2' => mktime(0, 0, 0, date("m") , date("d") - ($i-1), date("Y")),
'courseid' => $course_id );
$sql= "SELECT COUNT(userid) as countid FROM {log} WHERE time > :time1 AND time < :time2 AND action = 'login' ";
$countgraph_multi = $DB->get_record_sql($sql, $params);
$logs_multi[$a] = $countgraph_multi->countid;
}
$day[$a] = substr(userdate(mktime(0, 0, 0, date("m") , date("d") - $i, date("Y"))),0,-7);
$a = $a+1;
}
}
$graph = '
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
google.load("visualization", "1", {packages:["corechart"]});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = new google.visualization.DataTable();
data.addColumn("string", "Day");
data.addColumn("number", "'.get_string('visitors','block_graph_stats').'"); ';
if ($course_id<=1) { $graph .= 'data.addColumn("number", "'.get_string('uniquevisitors','block_graph_stats').'");'; }
$graph .= '
data.addRows([ ';
$a = 0;
for ($i=$daysnb;$i>-1;$i--) {
if ($course_id>1) {
$graph .= '["'.$day[$a].'",'.$logs_multi[$a].'],';
} else {
$graph .= '["'.$day[$a].'",'.$logs_multi[$a].','.$logs[$a].'],';
}
$a++;
}
$graph .= ' ]);
var options = {
width: '.$graphwidth.',
height: '.$graphwidth.',
legend: {position: "none"},
hAxis: {textPosition: "none"},
series: {0:{color: "'.$color1.'", type: "'.$type1.'"},1:{color: "'.$color2.'", type: "'.$type2.'"}}
};
var chart = new google.visualization.AreaChart(document.getElementById("chart_div"));
chart.draw(data, options);
}
</script>
<div id="chart_div"></div>';
return $graph;
}
?>