Commit 25531de6 authored by David Monllaó's avatar David Monllaó
Browse files

MDL-58859 mlbackend_python: Added to core

Part of MDL-57791 epic.
parent 9e84757b
<?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/>.
/**
* Python predictions processor
*
* @package mlbackend_python
* @copyright 2016 David Monllao {@link http://www.davidmonllao.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace mlbackend_python;
defined('MOODLE_INTERNAL') || die();
/**
* Python predictions processor.
*
* @package mlbackend_python
* @copyright 2016 David Monllao {@link http://www.davidmonllao.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class processor implements \core_analytics\predictor {
const REQUIRED_PIP_PACKAGE_VERSION = '0.0.9';
public function is_ready() {
# Check the installed pip package version.
$cmd = 'python -m moodleinspire.version';
$output = null;
$exitcode = null;
// Execute it sending the standard error to $output.
$result = exec($cmd . ' 2>&1', $output, $exitcode);
if ($result === self::REQUIRED_PIP_PACKAGE_VERSION) {
return true;
}
if ($exitcode != 0) {
return get_string('pythonpackagenotinstalled', 'mlbackend_python', $cmd);
}
if ($result) {
$a = (object)array('installed' => $result, 'required' => self::REQUIRED_PIP_PACKAGE_VERSION);
return get_string('packageinstalledshouldbe', 'mlbackend_python', $a);
}
return get_string('pythonpackagenotinstalled', 'mlbackend_python', $cmd);
}
public function train($uniqueid, \stored_file $dataset, $outputdir) {
$datasetpath = $this->get_file_path($dataset);
$cmd = 'python -m moodleinspire.training ' .
escapeshellarg($uniqueid) . ' ' .
escapeshellarg($outputdir) . ' ' .
escapeshellarg($datasetpath);
if (!PHPUNIT_TEST && CLI_SCRIPT) {
debugging($cmd, DEBUG_DEVELOPER);
}
$output = null;
$exitcode = null;
$result = exec($cmd, $output, $exitcode);
if (!$result) {
throw new \moodle_exception('errornopredictresults', 'analytics');
}
if (!$resultobj = json_decode($result)) {
throw new \moodle_exception('errorpredictwrongformat', 'analytics', '', json_last_error_msg());
}
if ($exitcode != 0) {
throw new \moodle_exception('errorpredictionsprocessor', 'analytics', '', implode(', ', $resultobj->errors));
}
return $resultobj;
}
public function predict($uniqueid, \stored_file $dataset, $outputdir) {
$datasetpath = $this->get_file_path($dataset);
$cmd = 'python -m moodleinspire.prediction ' .
escapeshellarg($uniqueid) . ' ' .
escapeshellarg($outputdir) . ' ' .
escapeshellarg($datasetpath);
if (!PHPUNIT_TEST && CLI_SCRIPT) {
debugging($cmd, DEBUG_DEVELOPER);
}
$output = null;
$exitcode = null;
$result = exec($cmd, $output, $exitcode);
if (!$result) {
throw new \moodle_exception('errornopredictresults', 'analytics');
}
if (!$resultobj = json_decode($result)) {
throw new \moodle_exception('errorpredictwrongformat', 'analytics', '', json_last_error_msg());
}
if ($exitcode != 0) {
throw new \moodle_exception('errorpredictionsprocessor', 'analytics', '', implode(', ', $resultobj->errors));
}
return $resultobj;
}
public function evaluate($uniqueid, $maxdeviation, $niterations, \stored_file $dataset, $outputdir) {
$datasetpath = $this->get_file_path($dataset);
$cmd = 'python -m moodleinspire.evaluation ' .
escapeshellarg($uniqueid) . ' ' .
escapeshellarg($outputdir) . ' ' .
escapeshellarg($datasetpath) . ' ' .
escapeshellarg(\core_analytics\model::MIN_SCORE) . ' ' .
escapeshellarg($maxdeviation) . ' ' .
escapeshellarg($niterations);
if (!PHPUNIT_TEST && CLI_SCRIPT) {
debugging($cmd, DEBUG_DEVELOPER);
}
$output = null;
$exitcode = null;
$result = exec($cmd, $output, $exitcode);
if (!$result) {
throw new \moodle_exception('errornopredictresults', 'analytics');
}
if (!$resultobj = json_decode($result)) {
throw new \moodle_exception('errorpredictwrongformat', 'analytics', '', json_last_error_msg());
}
return $resultobj;
}
protected function get_file_path(\stored_file $file) {
// From moodle filesystem to the local file system.
// This is not ideal, but there is no read access to moodle filesystem files.
return $file->copy_content_to_temp('core_analytics');
}
}
<?php
$string['packageinstalledshouldbe'] = '"moodleinspire" python package should be updated. The required version is "{$a->required}" and the installed version is "{$a->installed}"';
$string['pluginname'] = 'Python predictor';
$string['pythonpackagenotinstalled'] = 'moodleinspire python package is not installed or there is a problem with it. Please execute "{$a}" from command line interface for more info';
<?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/>.
/**
* Version details.
*
* @package mlbackend_python
* @copyright 2017 David Monllao {@link http://www.davidmonllao.com/}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
$plugin->version = 2017051500; // The current plugin version (Date: YYYYMMDDXX).
$plugin->requires = 2017050500; // Requires this Moodle version.
$plugin->component = 'mlbackend_python'; // Full name of the plugin (used for diagnostics).
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