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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/>.
/**
* Model-related actions.
*
* @package tool_analytics
* @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 . '/filelib.php');
$id = required_param('id', PARAM_INT);
$action = required_param('action', PARAM_ALPHANUMEXT);
require_login();
$model = new \core_analytics\model($id);
\core_analytics\manager::check_can_manage_models();
if (!\core_analytics\manager::is_analytics_enabled()) {
$PAGE->set_context(\context_system::instance());
$renderer = $PAGE->get_renderer('tool_analytics');
echo $renderer->render_analytics_disabled();
exit(0);
}
$returnurl = new \moodle_url('/admin/tool/analytics/index.php');
$params = array('id' => $id, 'action' => $action);
$url = new \moodle_url('/admin/tool/analytics/model.php', $params);
switch ($action) {
case 'edit':
$title = get_string('editmodel', 'tool_analytics', $model->get_name());
break;
case 'evaluate':
$title = get_string('evaluatemodel', 'tool_analytics');
break;
case 'scheduledanalysis':
$title = get_string('analysis', 'tool_analytics');
break;
case 'log':
$title = get_string('viewlog', 'tool_analytics');
break;
case 'enable':
$title = get_string('enable');
break;
case 'disable':
$title = get_string('disable');
break;
case 'delete':
$title = get_string('delete');
break;
case 'exportdata':
$title = get_string('exporttrainingdata', 'tool_analytics');
break;
case 'exportmodel':
$title = get_string('exportmodel', 'tool_analytics');
break;
case 'clear':
$title = get_string('clearpredictions', 'tool_analytics');
break;
case 'insightsreport':
$title = get_string('insightsreport', 'tool_analytics');
break;
case 'invalidanalysables':
$title = get_string('invalidanalysables', 'tool_analytics');
break;
default:
throw new moodle_exception('errorunknownaction', 'analytics');
}
\tool_analytics\output\helper::set_navbar($title, $url);
$onlycli = get_config('analytics', 'onlycli');
if ($onlycli === false) {
// Default applied if no config found.
$onlycli = 1;
}
switch ($action) {
case 'enable':
confirm_sesskey();
$model->enable();
redirect($returnurl);
break;
case 'disable':
confirm_sesskey();
$model->update(0, false, false);
redirect($returnurl);
break;
case 'delete':
confirm_sesskey();
$model->delete();
redirect($returnurl);
break;
case 'edit':
confirm_sesskey();
$invalidcurrenttimesplitting = $model->invalid_timesplitting_selected();
$potentialtimesplittings = $model->get_potential_timesplittings();
$customdata = array(
'id' => $model->get_id(),
'trainedmodel' => $model->is_trained(),
'staticmodel' => $model->is_static(),
'invalidcurrenttimesplitting' => (!empty($invalidcurrenttimesplitting)),
'targetclass' => $model->get_target()->get_id(),
'targetname' => $model->get_target()->get_name(),
'indicators' => $model->get_potential_indicators(),
'timesplittings' => $potentialtimesplittings,
'predictionprocessors' => \core_analytics\manager::get_all_prediction_processors(),
'supportscontexts' => ($model->get_analyser(['notimesplitting' => true]))::context_restriction_support(),
'contexts' => $model->get_contexts(),
);
$mform = new \tool_analytics\output\form\edit_model(null, $customdata);
if ($mform->is_cancelled()) {
redirect($returnurl);
} else if ($data = $mform->get_data()) {
$timesplitting = \tool_analytics\output\helper::option_to_class($data->timesplitting);
if (!$model->is_static()) {
// Converting option names to class names.
$indicators = array();
foreach ($data->indicators as $indicator) {
$indicatorclass = \tool_analytics\output\helper::option_to_class($indicator);
$indicators[] = \core_analytics\manager::get_indicator($indicatorclass);
}
$predictionsprocessor = \tool_analytics\output\helper::option_to_class($data->predictionsprocessor);
} else {
// These fields can not be modified.
$indicators = false;
$predictionsprocessor = false;
}
if (!isset($data->contexts)) {
$data->contexts = null;
}
$model->update($data->enabled, $indicators, $timesplitting, $predictionsprocessor, $data->contexts);
redirect($returnurl);
}
echo $OUTPUT->header();
$modelobj = $model->get_model_obj();
$callable = array('\tool_analytics\output\helper', 'class_to_option');
$modelobj->indicators = array_map($callable, json_decode($modelobj->indicators));
$modelobj->timesplitting = \tool_analytics\output\helper::class_to_option($modelobj->timesplitting);
if ($modelobj->contextids) {
$modelobj->contexts = array_map($callable, json_decode($modelobj->contextids));
}
$modelobj->predictionsprocessor = \tool_analytics\output\helper::class_to_option($modelobj->predictionsprocessor);
$mform->set_data($modelobj);
$mform->display();
break;
case 'evaluate':
confirm_sesskey();
if ($model->is_static()) {
throw new moodle_exception('errornostaticevaluate', 'tool_analytics');
}
if ($onlycli) {
throw new moodle_exception('erroronlycli', 'tool_analytics');
}
// Web interface is used by people who can not use CLI nor code stuff, always use
// cached stuff as they will change the model through the web interface as well
// which invalidates the previously analysed stuff.
$options = ['reuseprevanalysed' => true];
$mode = optional_param('mode', false, PARAM_ALPHANUM);
if ($mode == 'trainedmodel') {
$options['mode'] = 'trainedmodel';
} else {
// All is the default in core_analytics\model::evaluate() as well.
$timesplitting = optional_param('timesplitting', 'all', PARAM_ALPHANUMEXT);
if ($timesplitting === 'current') {
$options['timesplitting'] = \core_analytics\manager::get_time_splitting($model->get_model_obj()->timesplitting);
} else if ($timesplitting !== 'all') {
$options['timesplitting'] = \core_analytics\manager::get_time_splitting(
\tool_analytics\output\helper::option_to_class($timesplitting)
);
}
}
$results = $model->evaluate($options);
// We reset the theme and the output as some indicators may be using external functions
// which reset $PAGE.
\tool_analytics\output\helper::reset_page();
echo $OUTPUT->header();
$renderer = $PAGE->get_renderer('tool_analytics');
echo $renderer->render_evaluate_results($results, $model->get_analyser()->get_logs());
break;
case 'scheduledanalysis':
confirm_sesskey();
if ($onlycli) {
throw new moodle_exception('erroronlycli', 'tool_analytics');
}
$trainresults = $model->train();
$trainlogs = $model->get_analyser()->get_logs();
// Looks dumb to get a new instance but better be conservative.
$model = new \core_analytics\model($model->get_model_obj());
if ($model->is_trained()) {
$predictresults = $model->predict();
$predictlogs = $model->get_analyser()->get_logs();
} else {
$predictresults = false;
$predictlogs = array();
}
// We reset the theme and the output as some indicators may be using external functions
// which reset $PAGE.
\tool_analytics\output\helper::reset_page();
echo $OUTPUT->header();
$renderer = $PAGE->get_renderer('tool_analytics');
echo $renderer->render_get_predictions_results($trainresults, $trainlogs, $predictresults, $predictlogs);
break;
case 'log':
echo $OUTPUT->header();
if ($model->is_static()) {
throw new moodle_exception('errornostaticlog', 'tool_analytics');
}
$renderer = $PAGE->get_renderer('tool_analytics');
$modellogstable = new \tool_analytics\output\model_logs('model-' . $model->get_id(), $model);
echo $renderer->render_table($modellogstable);
break;
case 'exportdata':
if ($model->is_static() || !$model->is_trained()) {
throw new moodle_exception('errornoexport', 'tool_analytics');
}
$file = $model->get_training_data();
if (!$file) {
redirect($returnurl, get_string('errortrainingdataexport', 'tool_analytics'),
null, \core\output\notification::NOTIFY_ERROR);
}
$filename = 'training-data.' . $model->get_id() . '.' . time() . '.csv';
send_file($file, $filename, null, 0, false, true);
break;
case 'exportmodel':
$includeweights = optional_param('includeweights', 1, PARAM_INT);
$zipfilename = 'model-' . $model->get_unique_id() . '-' . microtime(false) . '.zip';
$zipfilepath = $model->export_model($zipfilename, $includeweights);
send_temp_file($zipfilepath, $zipfilename);
break;
case 'clear':
confirm_sesskey();
$model->clear();
redirect($returnurl);
break;
case 'insightsreport':
$contextid = optional_param('contextid', null, PARAM_INT);
echo $OUTPUT->header();
$renderable = new \tool_analytics\output\insights_report($model, $contextid);
$renderer = $PAGE->get_renderer('tool_analytics');
echo $renderer->render($renderable);
break;
case 'invalidanalysables':
echo $OUTPUT->header();
$page = optional_param('page', 0, PARAM_INT);
// No option in the UI to change this, only for url hackers ;).
$perpage = optional_param('perpage', 10, PARAM_INT);
$renderable = new \tool_analytics\output\invalid_analysables($model, $page, $perpage);
$renderer = $PAGE->get_renderer('tool_analytics');
echo $renderer->render($renderable);
break;
}
echo $OUTPUT->footer();