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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/>.
/**
* View model insights.
*
* @package report_insights
* @copyright 2017 David Monllao {@link http://www.davidmonllao.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once(__DIR__ . '/../../config.php');
require_once($CFG->libdir . '/adminlib.php');
$contextid = required_param('contextid', PARAM_INT);
$modelid = optional_param('modelid', false, PARAM_INT);
$page = optional_param('page', 0, PARAM_INT);
$perpage = optional_param('perpage', 100, PARAM_INT);
if ($perpage > 1000) {
$perpage = 1000;
}
list($context, $course, $cm) = get_context_info_array($contextid);
require_login($course, false, $cm);
if ($context->contextlevel < CONTEXT_COURSE) {
// Only for higher levels than course.
$PAGE->set_context($context);
}
if (!\core_analytics\manager::is_analytics_enabled()) {
$renderer = $PAGE->get_renderer('report_insights');
echo $renderer->render_analytics_disabled();
exit(0);
}
\core_analytics\manager::check_can_list_insights($context);
// Get all models that are enabled, trained and have predictions at this context.
$othermodels = \core_analytics\manager::get_all_models(true, true, $context);
array_filter($othermodels, function($model) use ($context) {
// Discard insights that are not linked unless you are a manager.
if (!$model->get_target()->link_insights_report()) {
try {
\core_analytics\manager::check_can_manage_models();
} catch (\required_capability_exception $e) {
return false;
}
}
return true;
});
if (!$modelid && count($othermodels)) {
// Autoselect the only available model.
$model = reset($othermodels);
$modelid = $model->get_id();
}
if ($modelid) {
unset($othermodels[$modelid]);
}
// The URL in navigation only contains the contextid.
$params = array('contextid' => $contextid);
$navurl = new \moodle_url('/report/insights/insights.php', $params);
// This is the real page url, we need it to include the modelid so pagination and
// other stuff works as expected.
$url = clone $navurl;
if ($modelid) {
$url->param('modelid', $modelid);
}
$PAGE->set_url($url);
$PAGE->set_pagelayout('report');
if ($context->contextlevel === CONTEXT_SYSTEM) {
admin_externalpage_setup('reportinsights', '', $url->params(), $url->out(false), array('pagelayout' => 'report'));
} else if ($context->contextlevel === CONTEXT_USER) {
$user = \core_user::get_user($context->instanceid, '*', MUST_EXIST);
$PAGE->navigation->extend_for_user($user);
$PAGE->add_report_nodes($user->id, array(
'name' => get_string('insights', 'report_insights'),
'url' => $url
));
}
$PAGE->navigation->override_active_url($navurl);
$renderer = $PAGE->get_renderer('report_insights');
// No models with insights available at this context level.
if (!$modelid) {
echo $renderer->render_no_insights($context);
exit(0);
}
$model = new \core_analytics\model($modelid);
if (!$model->get_target()->link_insights_report()) {
// Only manager access if this target does not link the insights report.
\core_analytics\manager::check_can_manage_models();
}
$insightinfo = new stdClass();
$insightinfo->contextname = $context->get_context_name();
$insightinfo->insightname = $model->get_target()->get_name();
if (!$model->is_enabled()) {
echo $renderer->render_model_disabled($insightinfo);
exit(0);
}
if (!$model->uses_insights()) {
echo $renderer->render_no_insights_model($context);
exit(0);
}
if ($context->id == SYSCONTEXTID) {
$PAGE->set_heading(get_site()->shortname);
} else {
$PAGE->set_heading($insightinfo->contextname);
}
$PAGE->set_title($insightinfo->insightname);
// Some models generate one single prediction per context. We can directly show the prediction details in this case.
if ($model->get_analyser()::one_sample_per_analysable()) {
// Param $perpage to 2 so we can detect if this model's analyser is using one_sample_per_analysable incorrectly.
$predictionsdata = $model->get_predictions($context, true, 0, 2);
if ($predictionsdata) {
list($total, $predictions) = $predictionsdata;
if ($total > 1) {
throw new \coding_exception('This model\'s analyser processed more than one sample for a single analysable element.' .
'Therefore, the analyser\'s one_sample_per_analysable() method should return false.');
}
$prediction = reset($predictions);
$redirecturl = new \moodle_url('/report/insights/prediction.php', ['id' => $prediction->get_prediction_data()->id]);
redirect($redirecturl);
}
}
echo $OUTPUT->header();
$renderable = new \report_insights\output\insights_list($model, $context, $othermodels, $page, $perpage);
echo $renderer->render($renderable);
$eventdata = array (
'context' => $context,
'other' => array('modelid' => $model->get_id())
);
\core\event\insights_viewed::create($eventdata)->trigger();
echo $OUTPUT->footer();