895 lines
32 KiB
PHP
895 lines
32 KiB
PHP
<?php
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// This file is part of the Studyplan plugin for Moodle
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <https://www.gnu.org/licenses/>.
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/**
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* Studyplan page management class
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* @package local_treestudyplan
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* @copyright 2023 P.M. Kuipers
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* @license https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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namespace local_treestudyplan;
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defined('MOODLE_INTERNAL') || die();
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require_once($CFG->libdir.'/externallib.php');
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require_once($CFG->libdir.'/filelib.php');
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/**
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* Studyplan page management class
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*/
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class studyplanpage {
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/**
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* Database table this class models for
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* @var string */
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const TABLE = "local_treestudyplan_page";
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/**
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* Cache for finding previously loaded pages
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* @var array */
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private static $cache = [];
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/**
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* Holds database record
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* @var stdClass
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*/
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private $r;
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/** @var int */
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private $id;
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/** @var studyplan*/
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private $studyplan;
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/**
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* Get aggregator for the studyplan (page)
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* @return aggregator
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*/
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public function aggregator(): aggregator {
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return $this->studyplan->aggregator();
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}
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/**
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* Find record in database and return management object
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* @param int $id Id of database record
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*/
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public static function find_by_id($id): self {
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if (!array_key_exists($id, self::$cache)) {
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self::$cache[$id] = new self($id);
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}
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return self::$cache[$id];
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}
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/**
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* Construct new instance from DB record
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* @param int $id Id of database record
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*/
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private function __construct($id) {
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global $DB;
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$this->id = $id;
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$this->r = $DB->get_record(self::TABLE, ['id' => $id]);
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$this->studyplan = studyplan::find_by_id($this->r->studyplan_id);
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}
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/**
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* Return database identifier
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* @return int
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*/
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public function id() {
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return $this->id;
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}
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/**
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* Find studyplan for this page
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*/
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public function studyplan(): studyplan {
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return $this->studyplan;
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}
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/**
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* Return short name
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* @return string
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*/
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public function shortname() {
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return $this->r->shortname;
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}
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/**
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* Numer of periods for this page
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*/
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public function periods() {
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return $this->r->periods;
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}
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/**
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* Return full name
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* @return string
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*/
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public function fullname() {
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return $this->r->fullname;
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}
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/**
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* Start date
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* @return \DateTime
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*/
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public function startdate() {
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return new \DateTime($this->r->startdate);
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}
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/**
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* End date
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* @param bool $farahead Return a date 100 years in the future if end date is not set. Returns null otherwise
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* @return \DateTime|null
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*/
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public function enddate($farahead = true) {
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if ($this->r->enddate && strlen($this->r->enddate) > 0) {
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return new \DateTime($this->r->enddate);
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} else {
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// Return a date 100 years into the future.
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if ($farahead) {
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return (new \DateTime($this->r->startdate))->add(new \DateInterval("P100Y"));
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} else {
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return null;
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}
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}
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}
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/**
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* Return description with all file references resolved
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* @return string
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*/
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public function description() {
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$text = \file_rewrite_pluginfile_urls(
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// The content of the text stored in the database.
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$this->r->description,
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// The pluginfile URL which will serve the request.
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'pluginfile.php',
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// The combination of contextid / component / filearea / itemid.
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// Form the virtual bucket that file are stored in.
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\context_system::instance()->id, // System instance is always used for this.
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'local_treestudyplan',
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'studyplanpage',
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$this->id
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);
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return $text;
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}
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/**
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* Determine studyplan timing
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* @return string
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*/
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public function timing() {
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$now = new \DateTime();
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if ($now > $this->startdate()) {
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if ($now > $this->enddate()) {
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return "past";
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} else {
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return "present";
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}
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} else {
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return "future";
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}
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}
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/**
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* Webservice structure for basic info
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* @param int $value Webservice requirement constant
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*/
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public static function simple_structure($value = VALUE_REQUIRED): \external_description {
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return new \external_single_structure([
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"id" => new \external_value(PARAM_INT, 'id of studyplan page'),
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"fullname" => new \external_value(PARAM_TEXT, 'name of studyplan page'),
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"shortname" => new \external_value(PARAM_TEXT, 'shortname of studyplan page'),
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"periods" => new \external_value(PARAM_INT, 'number of periods in studyplan page'),
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"description" => new \external_value(PARAM_RAW, 'description of studyplan page'),
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"startdate" => new \external_value(PARAM_TEXT, 'start date of studyplan'),
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"enddate" => new \external_value(PARAM_TEXT, 'end date of studyplan'),
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"timing" => new \external_value(PARAM_TEXT, '(past|present|future)'),
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"perioddesc" => period::page_structure(),
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"timeless" => new \external_value(PARAM_BOOL, 'Page does not in'),
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], 'Studyplan page basic info', $value);
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}
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/**
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* Webservice model for basic info
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* @return array Webservice data model
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*/
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public function simple_model() {
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return [
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'id' => $this->r->id,
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'fullname' => $this->r->fullname,
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'shortname' => $this->r->shortname,
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'periods' => $this->r->periods,
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'description' => $this->description(),
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'startdate' => $this->r->startdate,
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'enddate' => $this->r->enddate,
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'timing' => $this->timing(),
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"perioddesc" => period::page_model($this),
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'timeless' => \get_config("local_treestudyplan", "timelessperiods"),
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];
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}
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/**
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* Webservice structure for editor info
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* @param int $value Webservice requirement constant
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*/
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public static function editor_structure($value = VALUE_REQUIRED): \external_description {
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return new \external_single_structure([
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"id" => new \external_value(PARAM_INT, 'id of studyplan'),
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"fullname" => new \external_value(PARAM_TEXT, 'name of studyplan page'),
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"shortname" => new \external_value(PARAM_TEXT, 'shortname of studyplan page'),
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"description" => new \external_value(PARAM_RAW, 'description of studyplan page'),
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"periods" => new \external_value(PARAM_INT, 'number of periods in studyplan page'),
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"startdate" => new \external_value(PARAM_TEXT, 'start date of studyplan page'),
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"enddate" => new \external_value(PARAM_TEXT, 'end date of studyplan page'),
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"timing" => new \external_value(PARAM_TEXT, '(past|present|future)'),
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"studylines" => new \external_multiple_structure(studyline::editor_structure()),
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"perioddesc" => period::page_structure(),
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"timeless" => new \external_value(PARAM_BOOL, 'Page does not include time information'),
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], 'Studyplan page full structure', $value);
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}
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/**
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* Webservice model for editor info
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* @return array Webservice data model
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*/
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public function editor_model() {
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global $DB;
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$model = [
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'id' => $this->r->id,
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'fullname' => $this->r->fullname,
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'shortname' => $this->r->shortname,
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'description' => $this->description(),
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'periods' => $this->r->periods,
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'startdate' => $this->r->startdate,
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'enddate' => $this->r->enddate,
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'timing' => $this->timing(),
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'studylines' => [],
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"perioddesc" => period::page_model($this),
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'timeless' => \get_config("local_treestudyplan", "timelessperiods"),
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];
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$children = studyline::find_page_children($this);
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foreach ($children as $c) {
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$model['studylines'][] = $c->editor_model();
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}
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return $model;
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}
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/**
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* Add new study plan page
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* @param mixed $fields Parameter for new study plan page
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* @param bool $bare If true, do not create a first page with copy of studyplan names
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*/
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public static function add($fields, $bare = false): self {
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global $DB;
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if (!isset($fields['studyplan_id'])) {
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throw new \InvalidArgumentException("parameter 'studyplan_id' missing");
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} else {
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$plan = studyplan::find_by_id($fields['studyplan_id']);
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}
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$addable = ['studyplan_id', 'fullname', 'shortname', 'description', 'descriptionformat', 'periods', 'startdate', 'enddate'];
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$info = ['enddate' => null ];
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foreach ($addable as $f) {
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if (array_key_exists($f, $fields)) {
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$info[$f] = $fields[$f];
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}
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}
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if (!isset($info['periods'])) {
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$info['periods'] = 4;
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} else if ($info['periods'] < 1) {
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$info['periods'] = 1;
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}
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$id = $DB->insert_record(self::TABLE, $info);
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// Refresh the page cache for the studyplan.
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$plan->pages(true);
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$page = self::find_by_id($id); // Make sure the new page is immediately cached.
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if (!$bare) {
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if (get_config("local_treestudyplan", "copystudylinesnewpage")) {
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$templatepage = null;
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$templatelines = [];
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// Find the latest a page with lines in the plan.
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$pages = $plan->pages(true);
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foreach ($pages as $p) {
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if ($p->id() != $id) {
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$lines = studyline::find_page_children($p);
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if (count($lines) > 0) {
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$templatepage = $p;
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$templatelines = $lines;
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}
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}
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}
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if (isset($templatepage)) {
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foreach ($templatelines as $l) {
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$map = []; // Bare copy still requires passing an empty array.
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$l->duplicate($page, $map, true); // Do bare copy, which does not include line content.
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}
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}
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}
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if (count(studyline::find_page_children($page)) == 0) {
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// Add an empty study line if there are currently no study lines.
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$lineinfo = ['page_id' => $id,
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'name' => get_string("default_line_name", "local_treestudyplan"),
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'shortname' => get_string("default_line_shortname", "local_treestudyplan"),
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"color" => "#DDDDDD",
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];
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studyline::add($lineinfo);
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}
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}
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return $page;
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}
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/**
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* Edit studyplan page
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* @param mixed $fields Parameters to change
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*/
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public function edit($fields): self {
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global $DB;
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$editable = ['fullname', 'shortname', 'description', 'descriptionformat', 'periods', 'startdate', 'enddate'];
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$info = ['id' => $this->id ];
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foreach ($editable as $f) {
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if (array_key_exists($f, $fields)) {
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$info[$f] = $fields[$f];
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}
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}
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if (isset($info['periods']) && $info['periods'] < 1) {
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$info['periods'] = 1;
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}
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$DB->update_record(self::TABLE, $info);
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// Reload record after edit.
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$this->r = $DB->get_record(self::TABLE, ['id' => $this->id], "*", MUST_EXIST);
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return $this;
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}
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/**
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* Delete study plan page
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* @param bool $force Force deletion even if not empty
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* @return success
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*/
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public function delete($force = false) {
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global $DB;
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if ($force) {
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$children = studyline::find_page_children($this);
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foreach ($children as $c) {
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$c->delete($force);
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}
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}
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if ($DB->count_records('local_treestudyplan_line', ['page_id' => $this->id]) > 0) {
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return success::fail('cannot delete studyplan page that still has studylines');
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} else {
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$DB->delete_records(self::TABLE, ['id' => $this->id]);
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return success::success();
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}
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}
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/**
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* Webservice structure for userinfo
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* @param int $value Webservice requirement constant
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*/
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public static function user_structure($value = VALUE_REQUIRED): \external_description {
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return new \external_single_structure([
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"id" => new \external_value(PARAM_INT, 'id of studyplan page'),
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"fullname" => new \external_value(PARAM_TEXT, 'name of studyplan page'),
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"shortname" => new \external_value(PARAM_TEXT, 'shortname of studyplan page'),
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"description" => new \external_value(PARAM_RAW, 'description of studyplan page'),
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"periods" => new \external_value(PARAM_INT, 'number of slots in studyplan page'),
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"startdate" => new \external_value(PARAM_TEXT, 'start date of studyplan page'),
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"enddate" => new \external_value(PARAM_TEXT, 'end date of studyplan page'),
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"timing" => new \external_value(PARAM_TEXT, '(past|present|future)'),
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"studylines" => new \external_multiple_structure(studyline::user_structure()),
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"perioddesc" => period::page_structure(),
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"timeless" => new \external_value(PARAM_BOOL, 'Page does not include time information'),
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], 'Studyplan page with user info', $value);
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}
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/**
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* Webservice model for user info
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* @param int $userid ID of user to check specific info for
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* @return array Webservice data model
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*/
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public function user_model($userid) {
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$model = [
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'id' => $this->r->id,
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'fullname' => $this->r->fullname,
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'shortname' => $this->r->shortname,
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'description' => $this->description(),
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'periods' => $this->r->periods,
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'startdate' => $this->r->startdate,
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'enddate' => $this->r->enddate,
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'timing' => $this->timing(),
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'studylines' => [],
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"perioddesc" => period::page_model($this),
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'timeless' => \get_config("local_treestudyplan", "timelessperiods"),
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];
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$children = studyline::find_page_children($this);
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foreach ($children as $c) {
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$model['studylines'][] = $c->user_model($userid);
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}
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return $model;
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}
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/**
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* Scan user progress (completed modules) over this page for a specific user
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* @param int $userid ID of user to check for
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* @return float Fraction of completion
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*/
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public function scanuserprogress($userid) {
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$courses = 0;
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$completed = 0;
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foreach (studyline::find_page_children($this) as $line) {
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$items = studyitem::find_studyline_children($line);
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foreach ($items as $c) {
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if (in_array($c->type(), studyline::COURSE_TYPES)) {
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$courses += 1;
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if ($c->completion($userid) >= completion::COMPLETED) {
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$completed += 1;
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}
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}
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}
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}
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if ($courses > 0) {
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return ($completed / $courses);
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} else {
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return 0;
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}
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}
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/**
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* Find list of pages belonging to a specified study plan
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* @param studyplan $plan Studyplan to search pages for
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* @return studyplanpage[]
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*/
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public static function find_studyplan_children(studyplan $plan) {
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global $DB;
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$list = [];
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$ids = $DB->get_fieldset_select(self::TABLE, "id", "studyplan_id = :plan_id ORDER BY startdate",
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['plan_id' => $plan->id()]);
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foreach ($ids as $id) {
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$list[] = self::find_by_id($id);
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}
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return $list;
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}
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/**
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* Duplicate a studyplan page
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* @param int $pageid Id of the page to copy
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* @param studyplan $newstudyplan Studyplan to copy the page into
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*/
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public static function duplicate_page(int $pageid, studyplan $newstudyplan): self {
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$ori = self::find_by_id($pageid);
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$new = $ori->duplicate($newstudyplan);
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return $new;
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}
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/**
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* Duplicate this studyplan page
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* @param studyplan $newstudyplan Studyplan to copy the page into
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* @param \DateInterval|null $timeoffset Amount if time to shift the dates for the new page
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*/
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public function duplicate(studyplan $newstudyplan, $timeoffset = null): self {
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if ($timeoffset == null) {
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$timeoffset = new \DateInterval("P0D");
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}
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// First duplicate the studyplan structure.
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$new = self::add([
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'studyplan_id' => $newstudyplan->id(),
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'fullname' => $this->r->fullname,
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'shortname' => $this->r->shortname,
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'description' => $this->r->description,
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'pages' => $this->r->pages,
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'startdate' => $this->startdate()->add($timeoffset)->format("Y-m-d"),
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'enddate' => empty($this->r->enddate) ? null : ($this->enddate()->add($timeoffset)->format("Y-m-d")),
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]);
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// Copy any files related to this page.
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$areas = ["studyplanpage"];
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|
$fs = \get_file_storage();
|
|
foreach ($areas as $area) {
|
|
$files = $fs->get_area_files(
|
|
\context_system::instance()->id,
|
|
"local_treestudyplan",
|
|
$area,
|
|
$this->id()
|
|
);
|
|
foreach ($files as $file) {
|
|
$path = $file->get_filepath();
|
|
$filename = $file->get_filename();
|
|
if ($filename != ".") {
|
|
// Prepare new file info for the target file.
|
|
$fileinfo = [
|
|
'contextid' => \context_system::instance()->id, // System context.
|
|
'component' => 'local_treestudyplan', // Your component name.
|
|
'filearea' => $area, // Area name.
|
|
'itemid' => $new->id(), // Study plan id.
|
|
'filepath' => $path, // Original file path.
|
|
'filename' => $filename, // Original file name.
|
|
];
|
|
// Copy existing file into new file.
|
|
$fs->create_file_from_storedfile($fileinfo, $file);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Adjust the time offsets of the periods.
|
|
foreach ($this->periods() as $p) {
|
|
$p->edit([
|
|
'startdate' => $p->startdate()->add($timeoffset)->format("Y-m-d"),
|
|
'enddate' => $p->enddate()->add($timeoffset)->format("Y-m-d"),
|
|
]);
|
|
}
|
|
|
|
// Now , copy the studylines.
|
|
$children = studyline::find_page_children($this);
|
|
$itemtranslation = []; // Stores ids of original and copied items.
|
|
$linetranslation = []; // Stores ids of original and copied lines.
|
|
foreach ($children as $c) {
|
|
$translation = [];
|
|
$newchild = $c->duplicate($new, $translation);
|
|
$itemtranslation += $translation; // Fixes behaviour where translation array is reset on each call.
|
|
$linetranslation[$c->id()] = $newchild->id();
|
|
}
|
|
|
|
// Now the itemtranslation array contains all of the old child id's as keys and all of the related new ids as values.
|
|
// (feature of the studyline::duplicate function).
|
|
// Use this to recreate the lines in the new plan.
|
|
foreach (array_keys($itemtranslation) as $itemid) {
|
|
// Copy based on the outgoing connections of each item, to avoid duplicates.
|
|
$connections = studyitemconnection::find_outgoing($itemid);
|
|
foreach ($connections as $conn) {
|
|
studyitemconnection::connect($itemtranslation[$conn->from_id()], $itemtranslation[$conn->to_id()]);
|
|
}
|
|
}
|
|
return $new;
|
|
}
|
|
|
|
/**
|
|
* Description of export structure for webservices
|
|
*/
|
|
public static function export_structure(): \external_description {
|
|
return new \external_single_structure([
|
|
"format" => new \external_value(PARAM_TEXT, 'format of studyplan export'),
|
|
"content" => new \external_value(PARAM_RAW, 'exported studyplan content'),
|
|
], 'Exported studyplan');
|
|
}
|
|
|
|
/**
|
|
* Export this page into a json model
|
|
* @return array
|
|
*/
|
|
public function export_page() {
|
|
$model = $this->export_model();
|
|
$json = json_encode([
|
|
"type" => "studyplanpage",
|
|
"version" => 2.0,
|
|
"page" => $model,
|
|
], \JSON_PRETTY_PRINT);
|
|
return [ "format" => "application/json", "content" => $json];
|
|
}
|
|
|
|
/**
|
|
* Export this page into a csv model
|
|
* @return array
|
|
*/
|
|
public function export_page_csv() {
|
|
$plist = period::find_for_page($this);
|
|
|
|
$model = $this->editor_model();
|
|
|
|
$periods = intval($model["periods"]);
|
|
// First line.
|
|
$csv = "\"\"";
|
|
for ($i = 1; $i <= $periods; $i++) {
|
|
$name = $plist[$i]->shortname();
|
|
$csv .= ", \"{$name}\"";
|
|
}
|
|
$csv .= "\r\n";
|
|
// Next, make one line per studyline.
|
|
foreach ($model["studylines"] as $line) {
|
|
// Determine how many fields are simultaneous in the line at maximum.
|
|
$maxlines = 1;
|
|
for ($i = 1; $i <= $periods; $i++) {
|
|
if (count($line["slots"]) > $i) {
|
|
$ct = 0;
|
|
foreach ($line["slots"][$i][studyline::SLOTSET_COURSES] as $itm) {
|
|
if ($itm["type"] == "course") {
|
|
$ct += 1;
|
|
}
|
|
}
|
|
if ($ct > $maxlines) {
|
|
$maxlines = $ct;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
for ($lct = 0; $lct < $maxlines; $lct++) {
|
|
$csv .= "\"{$line["name"]}\"";
|
|
for ($i = 1; $i <= $periods; $i++) {
|
|
$filled = false;
|
|
if (count($line["slots"]) > $i) {
|
|
$ct = 0;
|
|
foreach ($line["slots"][$i][studyline::SLOTSET_COURSES] as $itm) {
|
|
if ($itm["type"] == "course") {
|
|
if ($ct == $lct) {
|
|
$csv .= ", \"";
|
|
$csv .= $itm["course"]["fullname"];
|
|
$csv .= "\r\n";
|
|
$first = true;
|
|
foreach ($itm["course"]["grades"] as $g) {
|
|
if ($g["selected"]) {
|
|
if ($first) {
|
|
$first = false;
|
|
} else {
|
|
$csv .= "\r\n";
|
|
}
|
|
$csv .= "- ".str_replace('"', '\'', $g["name"]);
|
|
}
|
|
}
|
|
$csv .= "\"";
|
|
$filled = true;
|
|
break;
|
|
}
|
|
$ct++;
|
|
}
|
|
}
|
|
}
|
|
if (!$filled) {
|
|
$csv .= ", \"\"";
|
|
}
|
|
}
|
|
$csv .= "\r\n";
|
|
}
|
|
}
|
|
|
|
return [ "format" => "text/csv", "content" => $csv];
|
|
}
|
|
|
|
/**
|
|
* Export this page's studylines into a json model
|
|
* @return array
|
|
*/
|
|
public function export_studylines() {
|
|
$model = $this->export_studylines_model();
|
|
$json = json_encode([
|
|
"type" => "studylines",
|
|
"version" => 2.0,
|
|
"studylines" => $model,
|
|
], \JSON_PRETTY_PRINT);
|
|
return [ "format" => "application/json", "content" => $json];
|
|
}
|
|
|
|
/**
|
|
* Export this pages periods into a json model
|
|
* @return array
|
|
*/
|
|
public function export_periods() {
|
|
$model = period::page_model($this);
|
|
$json = json_encode([
|
|
"type" => "periods",
|
|
"version" => 2.0,
|
|
"perioddesc" => $model,
|
|
], \JSON_PRETTY_PRINT);
|
|
return [ "format" => "application/json", "content" => $json];
|
|
}
|
|
|
|
/**
|
|
* Export essential information for export
|
|
* @return array information model
|
|
*/
|
|
public function export_model() {
|
|
$exportfiles = $this->export_files('studyplanpage');
|
|
|
|
$model = [
|
|
'fullname' => $this->r->fullname,
|
|
'shortname' => $this->r->shortname,
|
|
'description' => $this->r->description,
|
|
'descriptionformat' => $this->r->descriptionformat,
|
|
'periods' => $this->r->periods,
|
|
'startdate' => $this->r->startdate,
|
|
'enddate' => $this->r->enddate,
|
|
'studylines' => $this->export_studylines_model(),
|
|
'perioddesc' => period::page_model($this),
|
|
'files' => $exportfiles,
|
|
];
|
|
return $model;
|
|
}
|
|
|
|
/**
|
|
* Export files from file storage
|
|
* @param string $area Name of the file area to export
|
|
* @return array information model
|
|
*/
|
|
public function export_files($area) {
|
|
$exportfiles = [];
|
|
$fs = get_file_storage();
|
|
$files = $fs->get_area_files(
|
|
\context_system::instance()->id,
|
|
'local_treestudyplan',
|
|
$area,
|
|
$this->id);
|
|
foreach ($files as $file) {
|
|
if ($file->get_filename() != ".") {
|
|
$contents = $file->get_content();
|
|
$exportfiles[] = [
|
|
"name" => $file->get_filename(),
|
|
"path" => $file->get_filepath(),
|
|
"content" => convert_uuencode($contents),
|
|
];
|
|
}
|
|
}
|
|
return $exportfiles;
|
|
}
|
|
|
|
/**
|
|
* Import previously exported files into the file storage
|
|
* @param mixed $importfiles List of files to import from string in the format exported in export_model()
|
|
* @param string $area Name of the file area to export
|
|
*/
|
|
public function import_files($importfiles, $area) {
|
|
$fs = get_file_storage();
|
|
foreach ($importfiles as $file) {
|
|
if ($file['name'] != ".") {
|
|
$fileinfo = [
|
|
'contextid' => \context_system::instance()->id, // ID of the system context.
|
|
'component' => 'local_treestudyplan', // Your component name.
|
|
'filearea' => $area, // Usually = table name.
|
|
'itemid' => $this->id, // ID of the studyplanpage.
|
|
'filepath' => $file["path"], // Path of the file.
|
|
'filename' => $file["name"], // Name of the file..
|
|
];
|
|
|
|
$fs->create_file_from_string($fileinfo, convert_uudecode($file["content"]));
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Export this pages periods into an array before serialization
|
|
* @return array
|
|
*/
|
|
public function export_studylines_model() {
|
|
$children = studyline::find_page_children($this);
|
|
$lines = [];
|
|
foreach ($children as $c) {
|
|
$lines[] = $c->export_model();
|
|
}
|
|
return $lines;
|
|
}
|
|
|
|
/**
|
|
* Import periods from file contents
|
|
* @param string $content String
|
|
* @param string $format Format description
|
|
*/
|
|
public function import_periods($content, $format = "application/json") {
|
|
if ($format != "application/json") {
|
|
return false;
|
|
}
|
|
$content = json_decode($content, true);
|
|
if ($content["type"] == "periods" && $content["version"] >= 2.0) {
|
|
return $this->import_periods_model($content["perioddesc"]);
|
|
} else if ($content["type"] == "studyplanpage" && $content["version"] >= 2.0) {
|
|
return $this->import_periods_model($content["page"]["perioddesc"]);
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Import studylines from file contents
|
|
* @param string $content String
|
|
* @param string $format Format description
|
|
*/
|
|
public function import_studylines($content, $format = "application/json") {
|
|
if ($format != "application/json") {
|
|
return false;
|
|
}
|
|
$content = json_decode($content, true);
|
|
if ($content["type"] == "studylines" && $content["version"] >= 2.0) {
|
|
return $this->import_studylines_model($content["studylines"]);
|
|
} else if ($content["type"] == "studyplanpage" && $content["version"] >= 2.0) {
|
|
return $this->import_studylines_model($content["page"]["studylines"]);
|
|
} else if ($content["type"] == "studyplan" && $content["version"] >= 2.0) {
|
|
return $this->import_studylines_model($content["studyplan"]["pages"][0]["studylines"]);
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Find a studyline in this page by its shortname
|
|
* @param string $shortname
|
|
* @return studyline|null
|
|
*/
|
|
protected function find_studyline_by_shortname($shortname) {
|
|
$children = studyline::find_page_children($this);
|
|
foreach ($children as $l) {
|
|
if ($shortname == $l->shortname()) {
|
|
return $l;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Import periods from decoded array model
|
|
* @param array $model Decoded array
|
|
*/
|
|
public function import_periods_model($model) {
|
|
$periods = period::find_for_page($this);
|
|
foreach ($model as $pmodel) {
|
|
$pi = $pmodel["period"];
|
|
if (array_key_exists($pi, $periods)) {
|
|
$periods[$pi]->edit($pmodel);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Import studylines from decoded array model
|
|
* @param array $model Decoded array
|
|
*/
|
|
public function import_studylines_model($model) {
|
|
// First attempt to map each studyline model to an existing or new line.
|
|
$linemap = [];
|
|
foreach ($model as $ix => $linemodel) {
|
|
$line = $this->find_studyline_by_shortname($linemodel["shortname"]);
|
|
if (empty($line)) {
|
|
$linemodel["page_id"] = $this->id;
|
|
$line = studyline::add($linemodel);
|
|
}
|
|
$linemap[$ix] = $line;
|
|
}
|
|
|
|
// Next, let each study line import the study items.
|
|
$itemtranslation = [];
|
|
$itemconnections = [];
|
|
foreach ($model as $ix => $linemodel) {
|
|
$translation = [];
|
|
$connections = [];
|
|
$linemap[$ix]->import_studyitems($linemodel["slots"], $translation, $connections);
|
|
$itemtranslation += $translation; // Fixes behaviour where translation array is reset on each call.
|
|
$itemconnections += $connections;
|
|
}
|
|
|
|
// Finally, create the links between the study items.
|
|
foreach ($itemconnections as $from => $dests) {
|
|
foreach ($dests as $to) {
|
|
studyitemconnection::connect($from, $itemtranslation[$to]);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
}
|