/**
* Returns a map graph object for the implementations by country
*
* This function returns a {@link google_charts_map_graph} object that can be used
* to display a world map with countries highlighted by the number of registered
* implementations we know about.
*
* Use this function in the following way
* <code>
* $graph = moodle_implementation_map_graph();
* echo "<p><img src='$graph' alt='Unable to display the graph sorry' /></p>
* </code>
*
* The graph is printable by the __toString method so you are able to use it
* directly in an output statement sych as echo.
*
* @global object
* @global array
* @return google_charts_map_graph
*/
function moodle_implementation_map_graph()
{
global $CFG, $DB;
$graph = new google_charts_map_graph();
$graph->set_chart_title("Total known sites");
$filename = 'implementations_map_graph.' . STATS_CACHE_FILE_NAME_ID . '.png';
if (!$graph->set_filename($filename)) {
// There is an error setting the filename probably that we were unable
// to create the stats directory in moodledata
}
if ($graph->check_if_graph_exists()) {
return $graph;
}
list($where, $params) = local_hub_stats_get_confirmed_sql();
$sql = "SELECT r.countrycode, COUNT(r.id) AS countrycount\n FROM {hub_site_directory} r\n WHERE {$where}\n GROUP BY r.countrycode\n ORDER BY countrycount DESC";
$countryresults = $DB->get_records_sql($sql, $params);
$count = 0;
while ($count < 40) {
$country = array_shift($countryresults);
$graph->add_value($country->countrycode, 100 - $count * 5);
$count++;
}
foreach ($countryresults as $country) {
$graph->add_value($country->countrycode, 5);
}
return $graph;
}
$votesiteid = $uncool;
$votemodifier = -1;
}
}
if (isset($votesiteid) && isloggedin() && confirm_sesskey()) {
$message = vote_for_site($votesiteid, $votemodifier);
}
$sites = get_sites_for_country($country);
if ($sitevoting) {
if ($sitevoting == 1) {
$USER->sitevoting = true;
} else {
$USER->sitevoting = false;
}
}
$graph = new google_charts_map_graph();
$graph->force_generation(true);
$graph->set_chart_title($countries[$country] . " map");
$graph->set_default_colour('FFEAB3');
$filename = 'country.map.' . $country . '.png';
$graph->set_filename($filename);
$graph->add_value($country, 100);
$graph = html_writer::empty_tag('img', array('src' => new moodle_url($graph), 'alt' => $countries[$country] . " map", 'class' => 'countrymapimg'));
$list = new stdClass();
$list->printanchors = true;
$list->width = '100%';
if ($sites->privatesites > 0) {
$list->heading = $countries[$country] . " <span style='font-size:0.6em;'>{$sites->totalsites} sites total ({$sites->privatesites} are private and are not shown)</span>{$graph}";
} else {
$list->heading = $countries[$country] . " <span style='font-size:0.6em;'>{$sites->totalsites} sites total</span>{$graph}";
}
