1072 lines
		
	
	
	
		
			38 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			1072 lines
		
	
	
	
		
			38 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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 * Model class for study plan
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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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 * Model class for study plan
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 */
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class studyplan {
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    /** @var string */
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    const TABLE = "local_treestudyplan";
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    /** @var string */
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    const TABLE_COACH = "local_treestudyplan_coach";
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    /**
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     * Cache retrieved studyitems in this session
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     * @var array */
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    private static $cache = [];
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    /**
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     * Cache retrieved pages for the studyplan in this session
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     * @var array */
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    private static $pagecache = [];
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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 aggregator */
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    private $aggregator;
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    /**
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     * Hold context object once retrieved.
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     * @var \context
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     */
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    private $context = null;
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    /**
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     * Cache lookup of linked users (saves queries).
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     * @var int[]
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     */
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    private $linkeduserids = null;
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    /**
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     * Return configured aggregator for this studyplan
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     */
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    public function aggregator() : aggregator {
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        return $this->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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     * Cache objects to avoid multiple creation events in one session.
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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],"*",MUST_EXIST);
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        $this->aggregator = aggregator::create_or_default($this->r->aggregation, $this->r->aggregation_config);
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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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     * 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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     * Return full name
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     * @return string
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     */
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    public function name() {
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        return $this->r->name;
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    }
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    /**
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     * True if studyplan is suspended
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     * @return string
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     */
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    public function suspended() {
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        return boolval($this->r->suspended);
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    }
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    private function icon() {
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        global $CFG;
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        $fs = \get_file_storage();
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        // Returns an array of `stored_file` instances.
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        $files = $fs->get_area_files(\context_system::instance()->id, 'local_treestudyplan', 'icon', $this->id);
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        if (count($files) > 0 ){
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            $file = array_shift($files);
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            if ($file->get_filename() == ".") {
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                // Get next file if the first is the directory itself.
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                $file = array_shift($files);
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            }
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            $url = \moodle_url::make_pluginfile_url(
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                $file->get_contextid(),
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                $file->get_component(),
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                $file->get_filearea(),
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                $file->get_itemid(),
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                $file->get_filepath(),
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                $file->get_filename(),
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                false                     // Do not force download of the file.
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            );
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        } else {
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            // Try the configured default in settings.
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            $defaulticon = get_config('local_treestudyplan', 'defaulticon');
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            if (empty($defaulticon)) {
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                   // Fall back to the standard (ugly) default image.
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                   $url = new \moodle_url($CFG->wwwroot . "/local/treestudyplan/pix/default_icon.png");
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            } else {
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                $url = \moodle_url::make_pluginfile_url(\context_system::instance()->id, 'local_treestudyplan', 'defaulticon', 0, "/",
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                    $defaulticon);
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            }
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        }
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        return $url->out();
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    }
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    /** 
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     * Return description with all file references resolved
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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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            'studyplan',
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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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     * Return the studyplan pages associated with this plan
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     * @param bool $refresh Set to true to force a refresh of the pages
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     * @return studyplanpage[]
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     */
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    public function pages($refresh=false) : array {
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        if ( ((bool)$refresh) || empty($this->pagecache)) {
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            $this->pagecache = studyplanpage::find_studyplan_children($this);
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        }
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        return $this->pagecache;
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    }
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    /**
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     * Return the context the studyplan is associated to
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     * @return \context
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     */
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    public function context(): \context {
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        global $DB;
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        if (!isset($this->context)) {
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            try {
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                $this->context = contextinfo::context_by_id($this->r->context_id);
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            } catch (\dml_missing_record_exception $x) {
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                /* The associated context cannot be found.
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                   Probably the category was removed, but the studyplan was not.
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                   Revert the studyplan back to the system context to avoid lost studyplans.
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                   Note that the daily cleanup task calls this function to make sure
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                   studyplans without a valid context are not lost.
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                */
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                $this->context = \context_system::instance();
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                $this->r->context_id = $this->context->id;
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                $DB->update_record(self::TABLE, $this->r);
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            }
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        }
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        return $this->context;
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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'),
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            "userid" => new \external_value(PARAM_INT, 'id of user the plan is shown for',VALUE_OPTIONAL),
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            "name" => new \external_value(PARAM_TEXT, 'name of studyplan'),
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            "shortname" => new \external_value(PARAM_TEXT, 'shortname of studyplan'),
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            "idnumber" => new \external_value(PARAM_TEXT, 'idnumber of curriculum'),
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            "context_id" => new \external_value(PARAM_INT, 'context_id of studyplan'),
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            "description" => new \external_value(PARAM_RAW, 'description of studyplan'),
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            "descriptionformat" => new \external_value(PARAM_INT, 'description format'),
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            "icon" => new \external_value(PARAM_RAW,'icon for this plan'),
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            "aggregation" => new \external_value(PARAM_TEXT, 'selected aggregator'),
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            "aggregation_config" => new \external_value(PARAM_TEXT, 'config string for aggregator'),
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            "aggregation_info" => aggregator::basic_structure(),
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            "pages" => new \external_multiple_structure(studyplanpage::simple_structure(), 'pages'),
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            "progress" => new \external_value(PARAM_FLOAT,"fraction of completed modules",VALUE_OPTIONAL),
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            "amteaching" => new \external_value(PARAM_BOOL,"Current user is teaching one or more courses in this studyplan",VALUE_OPTIONAL),
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            "suspended" => new \external_value(PARAM_BOOL, 'if studyplan is suspended',VALUE_OPTIONAL),
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        ], 'Basic studyplan info', $value);
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    }
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    /**
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     * Webservice model for basic info
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     * @return array Webservice data model
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     */
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    public function simple_model($userid=null) {
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        global $USER;
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        $pages = [];
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        foreach ($this->pages() as $p) {
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            $pages[] = $p->simple_model();
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        }
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        $model = [
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            'id' => $this->r->id,
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            'name' => $this->r->name,
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            'shortname' => $this->r->shortname,
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            'idnumber' => $this->r->idnumber,
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            'context_id' => $this->context()->id,
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            'description' => $this->description(),
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            'descriptionformat' => $this->r->descriptionformat,
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            'icon' => $this->icon(),
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            'aggregation' => $this->r->aggregation,
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            'aggregation_config' => $this->aggregator->config_string(),
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            'aggregation_info' => $this->aggregator->basic_model(),
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            'pages' => $pages,
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            'suspended' => boolval($this->r->suspended),
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        ];
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        if(isset($userid)) {
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            $model["userid"] = $userid;
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            $model["progress"] = $this->scanuserprogress($userid);
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            $model['amteaching'] = teachingfinder::is_teaching_studyplan($this,$userid);
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        }
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        return $model;
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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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            "name" => new \external_value(PARAM_TEXT, 'name of studyplan'),
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            "shortname" => new \external_value(PARAM_TEXT, 'shortname of studyplan'),
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            "idnumber" => new \external_value(PARAM_TEXT, 'idnumber of curriculum'),
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            "description" => new \external_value(PARAM_RAW, 'description of studyplan'),
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            "descriptionformat" => new \external_value(PARAM_INT, 'description format'),
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            "icon" => new \external_value(PARAM_RAW,'icon for this plan'),
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            "context_id" => new \external_value(PARAM_INT, 'context_id of studyplan'),
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            "aggregation" => new \external_value(PARAM_TEXT, 'selected aggregator'),
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            "aggregation_config" => new \external_value(PARAM_TEXT, 'config string for aggregator'),
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            "aggregation_info" => aggregator::basic_structure(),
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            "pages" => new \external_multiple_structure(studyplanpage::editor_structure()),
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            "advanced" => new \external_single_structure([
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                "force_scales" => new \external_single_structure([
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                    "scales" => new \external_multiple_structure(new \external_single_structure([
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                            "id" => new \external_value(PARAM_INT, 'id of scale'),
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                            "name" => new \external_value(PARAM_TEXT, 'name of scale'),
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                        ])),
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                    ], "Scale forcing on stuff", VALUE_OPTIONAL),
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                ], "Advanced features available", VALUE_OPTIONAL),
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            "suspended" => new \external_value(PARAM_BOOL, 'if studyplan is suspended',VALUE_OPTIONAL),
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        ], 'Studyplan 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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            'name' => $this->r->name,
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            'shortname' => $this->r->shortname,
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            'idnumber' => $this->r->idnumber,
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            'description' => $this->description(),
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            'descriptionformat' => $this->r->descriptionformat,
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            'icon' => $this->icon(),
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            'context_id' => $this->context()->id,
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            "aggregation" => $this->r->aggregation,
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            "aggregation_config" => $this->aggregator->config_string(),
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            'aggregation_info' => $this->aggregator->basic_model(),
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            'pages' => [],
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            'suspended' => boolval($this->r->suspended),
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        ];
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        foreach ($this->pages() as $p) {
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            $model['pages'][] = $p->editor_model();
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        }
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        if (has_capability('local/treestudyplan:forcescales', \context_system::instance())) {
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            if (!array_key_exists('advanced', $model)) {
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                // Create advanced node if it does not exist.
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                $model['advanced'] = [];
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            }
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            // Get a list of available scales.
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            $scales = array_map( function($scale) {
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                return [ "id" => $scale->id, "name" => $scale->name, ];
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            }, \grade_scale::fetch_all(['courseid' => 0]) );
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            $model['advanced']['force_scales'] = [
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                'scales' => $scales,
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            ];
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        }
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        return $model;
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    }
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						|
 | 
						|
    /**
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     * Add a new studyplan
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     * @param array $fields Properties for study line ['name', 'shortname', 'description', 'idnumber', 'context_id', 'aggregation',
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						|
     *                      'aggregation_config', 'periods', 'startdate', 'enddate'];
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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 $CFG, $DB;
 | 
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 | 
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        $addable = ['name', 'shortname', 'description', 'descriptionformat', 'idnumber', 'context_id', 'aggregation', 'aggregation_config'];
 | 
						|
        $info = ['enddate' => null ];
 | 
						|
        foreach ($addable as $f) {
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						|
            if (array_key_exists($f, $fields)) {
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						|
                $info[$f] = $fields[$f];
 | 
						|
            }
 | 
						|
        }
 | 
						|
        $id = $DB->insert_record(self::TABLE, $info);
 | 
						|
        $plan = self::find_by_id($id); // Make sure the new studyplan is immediately cached.
 | 
						|
 | 
						|
        // Add a single page and initialize it with placeholder data 
 | 
						|
        // This makes it easier to create a new study plan
 | 
						|
        // On import, adding an empty page messes things up , so we have an option to skip this....
 | 
						|
        if (!$bare) {
 | 
						|
 | 
						|
            $pageaddable = ['name', 'shortname', 'description', 'descriptionformat', 'periods', 'startdate', 'enddate'];
 | 
						|
            $pageinfo = ['studyplan_id' => $id];
 | 
						|
            foreach ($pageaddable as $f) {
 | 
						|
                if (array_key_exists($f, $fields)) {
 | 
						|
                    if ($f == "name") {
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						|
                        $pageinfo["fullname"] = $fields[$f];
 | 
						|
                    } else {
 | 
						|
                        $pageinfo[$f] = $fields[$f];
 | 
						|
                    }
 | 
						|
                }
 | 
						|
            }
 | 
						|
 | 
						|
            $page = studyplanpage::add($pageinfo);
 | 
						|
            $plan->page_cache = [$page];
 | 
						|
        }
 | 
						|
        // End temporary skräpp code.
 | 
						|
 | 
						|
        return $plan;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Edit study line properties
 | 
						|
     * @param array $fields Changed properties for study line ['name', 'shortname', 'description', 'idnumber',
 | 
						|
     *                      'context_id', 'aggregation', 'aggregation_config', 'suspended']
 | 
						|
     */
 | 
						|
    public function edit($fields) : self {
 | 
						|
        global $DB;
 | 
						|
        $editable = [
 | 
						|
            'name',
 | 
						|
            'shortname',
 | 
						|
            'description',
 | 
						|
            'descriptionformat',
 | 
						|
            'idnumber',
 | 
						|
            'context_id',
 | 
						|
            'aggregation',
 | 
						|
            'aggregation_config',
 | 
						|
            'suspended'
 | 
						|
        ];
 | 
						|
        $info = ['id' => $this->id, ];
 | 
						|
        foreach ($editable as $f) {
 | 
						|
            if (array_key_exists($f, $fields)) {
 | 
						|
                $info[$f] = $fields[$f];
 | 
						|
            }
 | 
						|
        }
 | 
						|
        $DB->update_record(self::TABLE, $info);
 | 
						|
        // Reload record after edit.
 | 
						|
        $this->r = $DB->get_record(self::TABLE, ['id' => $this->id], "*", MUST_EXIST);
 | 
						|
 | 
						|
        // Reload the context...
 | 
						|
        $this->context = null;
 | 
						|
        $this->context();
 | 
						|
        // Reload aggregator.
 | 
						|
        $this->aggregator = aggregator::create_or_default($this->r->aggregation, $this->r->aggregation_config);
 | 
						|
 | 
						|
        return $this;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Delete studyline
 | 
						|
     * @param bool $force Force deletion even if study line contains items
 | 
						|
     */
 | 
						|
    public function delete($force = false) : success {
 | 
						|
        global $DB;
 | 
						|
 | 
						|
        if ($force) {
 | 
						|
            $children = studyplanpage::find_studyplan_children($this);
 | 
						|
            foreach ($children as $c) {
 | 
						|
                $c->delete($force);
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        if ($DB->count_records('local_treestudyplan_page', ['studyplan_id' => $this->id]) > 0) {
 | 
						|
            return success::fail('cannot delete studyplan that still has pages');
 | 
						|
        } else {
 | 
						|
            $DB->delete_records('local_treestudyplan', ['id' => $this->id]);
 | 
						|
            return success::success();
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Find all studyplans in a given context or the system context
 | 
						|
     * @param int $contextid Optional contextid to search in. System context used if left empty
 | 
						|
     * @return studyplan[]
 | 
						|
     */
 | 
						|
    public static function find_all($contextid = -1) : array {
 | 
						|
        global $DB, $USER;
 | 
						|
        $list = [];
 | 
						|
 | 
						|
        if ($contextid <= 0) {
 | 
						|
            $ids = $DB->get_fieldset_select(self::TABLE, "id", "");
 | 
						|
        } else {
 | 
						|
            if ($contextid == 1) {
 | 
						|
                $contextid = 1;
 | 
						|
                $where = "context_id <= :contextid OR context_id IS NULL";
 | 
						|
            } else {
 | 
						|
                $where = "context_id = :contextid";
 | 
						|
            }
 | 
						|
            $ids = $DB->get_fieldset_select(self::TABLE, "id", $where, ["contextid" => $contextid]);
 | 
						|
        }
 | 
						|
 | 
						|
        foreach ($ids as $id) {
 | 
						|
            $list[] = self::find_by_id($id);
 | 
						|
        }
 | 
						|
        return $list;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Find all studyplans in a given context or the system context with a specific short name
 | 
						|
     * (Used in generating random grades for development)
 | 
						|
     * @param string $shortname Shortname to match
 | 
						|
     * @param int $contextid Optional contextid to search in. System context used if left empty
 | 
						|
     * @return studyplan[]
 | 
						|
     */
 | 
						|
    public static function find_by_shortname($shortname, $contextid = 0): array {
 | 
						|
        global $DB;
 | 
						|
        $list = [];
 | 
						|
 | 
						|
        $where = "shortname = :shortname AND context_id = :contextid";
 | 
						|
        if ($contextid == 0) {
 | 
						|
            $where .= "OR context_id IS NULL";
 | 
						|
        }
 | 
						|
        $ids = $DB->get_fieldset_select(self::TABLE, "id", $where, ["shortname" => $shortname, "contextid" => $contextid]);
 | 
						|
        foreach ($ids as $id) {
 | 
						|
            $list[] = self::find_by_id($id);
 | 
						|
        }
 | 
						|
        return $list;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Find all studyplans for a given user
 | 
						|
     * @param int $userid Id of the user to search for
 | 
						|
     * @return studyplan[]
 | 
						|
     */
 | 
						|
    public static function find_for_user($userid) : array {
 | 
						|
        global $DB;
 | 
						|
 | 
						|
        $sql = "SELECT s.id FROM {local_treestudyplan} s
 | 
						|
                INNER JOIN {local_treestudyplan_cohort} j ON j.studyplan_id = s.id
 | 
						|
                INNER JOIN {cohort_members} cm ON j.cohort_id = cm.cohortid
 | 
						|
                WHERE cm.userid = :userid";
 | 
						|
        $cohortplanids = $DB->get_fieldset_sql($sql, ['userid' => $userid]);
 | 
						|
 | 
						|
        $sql = "SELECT s.id FROM {local_treestudyplan} s
 | 
						|
                INNER JOIN {local_treestudyplan_user} j ON j.studyplan_id = s.id
 | 
						|
                WHERE j.user_id = :userid";
 | 
						|
        $userplanids = $DB->get_fieldset_sql($sql, ['userid' => $userid]);
 | 
						|
 | 
						|
        $plans = [];
 | 
						|
        foreach ($cohortplanids as $id) {
 | 
						|
            $plans[$id] = self::find_by_id($id);
 | 
						|
        }
 | 
						|
        foreach ($userplanids as $id) {
 | 
						|
            if (!array_key_exists($id, $plans)) {
 | 
						|
                $plans[$id] = self::find_by_id($id);
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        return $plans;
 | 
						|
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Check if a given user has associated studyplans
 | 
						|
     * @param int $userid Id of the user to search for
 | 
						|
     */
 | 
						|
    public static function exist_for_user($userid) : bool {
 | 
						|
        global $DB;
 | 
						|
        $count = 0;
 | 
						|
        $sql = "SELECT COUNT(s.id) FROM {local_treestudyplan} s
 | 
						|
                INNER JOIN {local_treestudyplan_cohort} j ON j.studyplan_id = s.id
 | 
						|
                INNER JOIN {cohort_members} cm ON j.cohort_id = cm.cohortid
 | 
						|
                WHERE cm.userid = :userid";
 | 
						|
        $count += $DB->count_records_sql($sql, ['userid' => $userid]);
 | 
						|
 | 
						|
        $sql = "SELECT COUNT(s.id) FROM {local_treestudyplan} s
 | 
						|
                INNER JOIN {local_treestudyplan_user} j ON j.studyplan_id = s.id
 | 
						|
                WHERE j.user_id = :userid";
 | 
						|
        $count += $DB->count_records_sql($sql, ['userid' => $userid]);
 | 
						|
 | 
						|
        return ($count > 0);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Retrieve the users linked to this studyplan.
 | 
						|
     * @return stdClass[] User objects
 | 
						|
     */
 | 
						|
    public function find_linked_users() : array {
 | 
						|
        global $DB;
 | 
						|
 | 
						|
        $users = [];
 | 
						|
 | 
						|
        $uids = $this->find_linked_userids();
 | 
						|
 | 
						|
        foreach ($uids as $uid) {
 | 
						|
            $users[] = $DB->get_record("user", ["id" => $uid]);
 | 
						|
        }
 | 
						|
 | 
						|
        return $users;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Retrieve the user id's of the users linked to this studyplan.
 | 
						|
     * @return array of int (User Id)
 | 
						|
     */
 | 
						|
    public function find_linked_userids(): array {
 | 
						|
        global $DB;
 | 
						|
 | 
						|
        if ($this->linkeduserids === null) {
 | 
						|
            $uids = [];
 | 
						|
            // First get directly linked userids.
 | 
						|
            $sql = "SELECT j.user_id FROM {local_treestudyplan_user} j
 | 
						|
                    WHERE j.studyplan_id = :planid";
 | 
						|
            $ulist = $DB->get_fieldset_sql($sql, ['planid' => $this->id]);
 | 
						|
 | 
						|
            $uids = array_merge($uids, $ulist);
 | 
						|
            foreach ($ulist as $uid) {
 | 
						|
                $users[] = $DB->get_record("user", ["id" => $uid]);
 | 
						|
            }
 | 
						|
 | 
						|
            // Next het users linked though cohort.
 | 
						|
            $sql = "SELECT cm.userid FROM {local_treestudyplan_cohort} j
 | 
						|
                    INNER JOIN {cohort_members} cm ON j.cohort_id = cm.cohortid
 | 
						|
                    WHERE j.studyplan_id = :planid";
 | 
						|
            $ulist = $DB->get_fieldset_sql($sql, ['planid' => $this->id]);
 | 
						|
 | 
						|
            $uids = array_merge($uids, $ulist);
 | 
						|
 | 
						|
            $this->linkeduserids = array_unique($uids);
 | 
						|
        }
 | 
						|
        return $this->linkeduserids;
 | 
						|
    }
 | 
						|
 | 
						|
    /** Check if this studyplan is linked to a particular user
 | 
						|
     * @param bool|stdClass $user The userid or user record of the user
 | 
						|
     */
 | 
						|
    public function has_linked_user($user) {
 | 
						|
        if (is_int($user)) {
 | 
						|
            $userid = $user;
 | 
						|
        } else {
 | 
						|
            $userid = $user->id;
 | 
						|
        }
 | 
						|
        $uids = $this->find_linked_userids();
 | 
						|
        if (in_array($userid, $uids)) {
 | 
						|
            return true;
 | 
						|
        } else {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /** Check if this studyplan is linked to a particular user
 | 
						|
     * @param bool|stdClass|null $user The userid or user record of the user Leave empty to check current user.
 | 
						|
     */
 | 
						|
    public function is_coach($user=null) {
 | 
						|
        global $DB, $USER;
 | 
						|
        if($user == null) {
 | 
						|
            $user = $USER;
 | 
						|
            $userid = $USER->id;
 | 
						|
        } else if (is_numeric($user)) {
 | 
						|
            $userid = intval($user);
 | 
						|
        } else {
 | 
						|
            $userid = $user->id;
 | 
						|
        }
 | 
						|
        $r = $DB->get_record(self::TABLE_COACH,["studyplan_id" => $this->id, "user_id"=> $userid]);
 | 
						|
 | 
						|
        if ($r && has_capability(associationservice::CAP_COACH,$this->context(),$userid)) {
 | 
						|
            return true;
 | 
						|
        } else {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Webservice structure for userinfo
 | 
						|
     * @param int $value Webservice requirement constant
 | 
						|
     */
 | 
						|
    public static function user_structure($value = VALUE_REQUIRED) : \external_description {
 | 
						|
        return new \external_single_structure([
 | 
						|
            "id" => new \external_value(PARAM_INT, 'id of studyplan'),
 | 
						|
            "userid" => new \external_value(PARAM_INT, 'id of user the plan is shown for'),
 | 
						|
            "name" => new \external_value(PARAM_TEXT, 'name of studyplan'),
 | 
						|
            "shortname" => new \external_value(PARAM_TEXT, 'shortname of studyplan'),
 | 
						|
            "description" => new \external_value(PARAM_RAW, 'description of studyplan'),
 | 
						|
            "descriptionformat" => new \external_value(PARAM_INT, 'description format'),
 | 
						|
            "icon" => new \external_value(PARAM_RAW,'icon for this plan'),
 | 
						|
            "progress" => new \external_value(PARAM_FLOAT,"fraction of completed modules"),
 | 
						|
            "idnumber" => new \external_value(PARAM_TEXT, 'idnumber of curriculum'),
 | 
						|
            "pages" => new \external_multiple_structure(studyplanpage::user_structure()),
 | 
						|
            "aggregation_info" => aggregator::basic_structure(),
 | 
						|
        ], 'Studyplan with user info', $value);
 | 
						|
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Scan user progress (completed modules) over all pages for a specific user
 | 
						|
     * @param int $userid ID of user to check for
 | 
						|
     * @return float Fraction of completion
 | 
						|
     */
 | 
						|
    private function scanuserprogress($userid) {
 | 
						|
        $progress = 0;
 | 
						|
        $pages = $this->pages();
 | 
						|
        foreach ($pages as $p) {
 | 
						|
            $prg = $p->scanuserprogress($userid);
 | 
						|
            $progress += $prg;
 | 
						|
        }
 | 
						|
        // Now average it out over the amount of pages
 | 
						|
        if (count($pages) > 0 ) {
 | 
						|
            return $progress / count($pages);
 | 
						|
        } else {
 | 
						|
            return 0;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Webservice model for user info
 | 
						|
     * @param int $userid ID of user to check specific info for
 | 
						|
     * @return array Webservice data model
 | 
						|
     */
 | 
						|
    public function user_model($userid) {
 | 
						|
        $progress = $this->scanuserprogress($userid);
 | 
						|
        if (is_nan($progress)) {
 | 
						|
            $progress = 0;
 | 
						|
        }
 | 
						|
        $model = [
 | 
						|
            'id' => $this->r->id,
 | 
						|
            'userid' => $userid,
 | 
						|
            'name' => $this->r->name,
 | 
						|
            'shortname' => $this->r->shortname,
 | 
						|
            'description' => $this->description(),
 | 
						|
            'descriptionformat' => $this->r->descriptionformat,
 | 
						|
            'icon' => $this->icon(),
 | 
						|
            'idnumber' => $this->r->idnumber,
 | 
						|
            'progress' => $progress,
 | 
						|
            'pages' => [],
 | 
						|
            'aggregation_info' => $this->aggregator->basic_model(),
 | 
						|
        ];
 | 
						|
 | 
						|
        foreach ($this->pages() as $p) {
 | 
						|
            $model['pages'][] = $p->user_model($userid);
 | 
						|
        }
 | 
						|
        return $model;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Duplicate a studyplan by id
 | 
						|
     * Function used by webservices and returns webservices model
 | 
						|
     * @param int $planid Id if studyplan
 | 
						|
     * @param string $name New fullname of studyplan
 | 
						|
     * @param string $shortname New shortname of studyplan
 | 
						|
     * @return array Simple webservices model of plan
 | 
						|
     */
 | 
						|
    public static function duplicate_plan($planid, $name, $shortname) : array {
 | 
						|
        $ori = self::find_by_id($planid);
 | 
						|
        $new = $ori->duplicate($name, $shortname);
 | 
						|
        return $new->simple_model();
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Duplicate this studyplan
 | 
						|
     * @param string $name New fullname of studyplan
 | 
						|
     * @param string $shortname New shortname of studyplan
 | 
						|
     */
 | 
						|
    public function duplicate($name, $shortname) : self {
 | 
						|
        // First duplicate the studyplan structure.
 | 
						|
        $newplan = self::add([
 | 
						|
            'name' => $name,
 | 
						|
            'shortname' => $shortname,
 | 
						|
            'description' => $this->r->description,
 | 
						|
            'descriptionformat' => $this->r->descriptionformat,
 | 
						|
            'aggregation' => $this->r->aggregation,
 | 
						|
            'aggregation_config' => $this->r->aggregation_config
 | 
						|
        ]);
 | 
						|
 | 
						|
        //TODO: Copy any files related to this userid....
 | 
						|
 | 
						|
        // Next, copy the studylines.
 | 
						|
 | 
						|
        foreach ($this->pages() as $p) {
 | 
						|
            $newchild = $p->duplicate($newplan);
 | 
						|
        }
 | 
						|
 | 
						|
        return $newplan;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * 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_plan() {
 | 
						|
        $model = $this->export_model();
 | 
						|
        $json = json_encode([
 | 
						|
            "type" => "studyplan",
 | 
						|
            "version" => 2.0,
 | 
						|
            "studyplan" => $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('studyplan');
 | 
						|
        $iconfiles = $this->export_files('icon');
 | 
						|
        $model = [
 | 
						|
            'name' => $this->r->name,
 | 
						|
            'shortname' => $this->r->shortname,
 | 
						|
            'description' => $this->r->description,
 | 
						|
            'descriptionformat' => $this->r->descriptionformat,
 | 
						|
            "aggregation" => $this->r->aggregation,
 | 
						|
            "aggregation_config" => json_decode($this->aggregator->config_string()),
 | 
						|
            'aggregation_info' => $this->aggregator->basic_model(),
 | 
						|
            'pages' => $this->export_pages_model(),
 | 
						|
            'files' => $exportfiles,
 | 
						|
            'iconfiles' => $iconfiles,
 | 
						|
        ];
 | 
						|
        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 string $area Name of the file area to import
 | 
						|
     * @param mixed $importfiles List of files to import from string in the format exported in export_model()
 | 
						|
     * 
 | 
						|
     */
 | 
						|
    public function import_files($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 all pages
 | 
						|
     * @return array information model
 | 
						|
     */
 | 
						|
    public function export_pages_model() {
 | 
						|
        $pages = [];
 | 
						|
        foreach ($this->pages() as $p) {
 | 
						|
            $pages[] = $p->export_model();
 | 
						|
        }
 | 
						|
        return $pages;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Import studyplan from file contents
 | 
						|
     * @param string $content String
 | 
						|
     * @param string $format Format description
 | 
						|
     * @param int $contextid The context to import into
 | 
						|
     */
 | 
						|
    public static function import_studyplan($content, $format = "application/json", $contextid = 1) {
 | 
						|
        if ($format != "application/json") {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
 | 
						|
        $content = json_decode($content, true);
 | 
						|
        if ($content["type"] == "studyplan" && $content["version"] >= 2.0) {
 | 
						|
 | 
						|
            $planmodel = $content["studyplan"];
 | 
						|
            // Make sure the aggregation_config is re-encoded as json text.
 | 
						|
            $planmodel["aggregation_config"] = json_encode( $planmodel["aggregation_config"]);
 | 
						|
 | 
						|
            // And make sure the context_id is set to the provided context for import.
 | 
						|
            $planmodel["context_id"] = $contextid;
 | 
						|
 | 
						|
            // Create a new plan, based on the given parameters - this is the import studyplan part.
 | 
						|
            $plan = self::add( $planmodel, true);
 | 
						|
 | 
						|
            // Import the files
 | 
						|
            if (isset( $planmodel['files']) && is_array( $planmodel['files'])) {
 | 
						|
                $plan->import_files( $planmodel['files'],"studyplan");
 | 
						|
            }
 | 
						|
            // Import the icon
 | 
						|
            if (isset( $planmodel['iconfiles']) && is_array( $planmodel['iconfiles'])) {
 | 
						|
                $plan->import_files( $planmodel['iconfiles'],"icon");
 | 
						|
            }
 | 
						|
 | 
						|
            // Now import each page.
 | 
						|
            return $plan->import_pages_model($planmodel["pages"]);
 | 
						|
 | 
						|
        } else {
 | 
						|
            debugging("Invalid format and type: {$content['type']} version {$content['version']}");
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Import studyplan pages from file contents
 | 
						|
     * @param string $content String
 | 
						|
     * @param string $format Format description
 | 
						|
     */
 | 
						|
    public function import_pages($content, $format = "application/json") {
 | 
						|
        if ($format != "application/json") {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
        $content = json_decode($content, true);
 | 
						|
        if ($content["version"] >= 2.0) {
 | 
						|
            if ($content["type"] == "studyplanpage") {
 | 
						|
                // Import single page from a studyplanpage (wrapped in array of one page).
 | 
						|
                return $this->import_pages_model([$content["page"]]);
 | 
						|
            } else if ($content["type"] == "studyplan") {
 | 
						|
                // Import all pages from the studyplan.
 | 
						|
                return $this->import_pages_model($content["studyplan"]["pages"]);
 | 
						|
            }
 | 
						|
        } else {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
 | 
						|
    /**
 | 
						|
     * Import pages from decoded array model
 | 
						|
     * @param array $model Decoded array
 | 
						|
     */
 | 
						|
    protected function import_pages_model($model) : bool {
 | 
						|
        $this->pages(); // Make sure the page cache is initialized, since we will be adding to it.
 | 
						|
        foreach ($model as $p) {
 | 
						|
            $p["studyplan_id"] = $this->id();
 | 
						|
            $page = studyplanpage::add($p);
 | 
						|
            $this->page_cache[] = $page;
 | 
						|
            $page->import_periods_model($p["perioddesc"]);
 | 
						|
            $page->import_studylines_model($p["studylines"]);
 | 
						|
            if ($p['files']) {
 | 
						|
                $page->import_files($p["files"],'studyplanpage');
 | 
						|
            }
 | 
						|
        }
 | 
						|
        return true;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Mark the studyplan as changed regarding courses and associated cohorts
 | 
						|
     */
 | 
						|
    public function mark_csync_changed() {
 | 
						|
        global $DB;
 | 
						|
        $DB->update_record(self::TABLE, ['id' => $this->id, "csync_flag" => 1]);
 | 
						|
        // Manually set it in the cache, if something unexpected happened, an exception has already been thrown anyway.
 | 
						|
        $this->r->csync_flag = 1;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Clear the studyplan as changed regarding courses and associated cohorts
 | 
						|
     */
 | 
						|
    public function clear_csync_changed() {
 | 
						|
        global $DB;
 | 
						|
        $DB->update_record(self::TABLE, ['id' => $this->id, "csync_flag" => 0]);
 | 
						|
        // Manually set it in the cache, if something unexpected happened, an exception has already been thrown anyway.
 | 
						|
        $this->r->csync_flag = 0;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Check if  the studyplan as changed regarding courses and associated cohorts
 | 
						|
     */
 | 
						|
    public function has_csync_changed() : bool {
 | 
						|
        return ($this->r->csync_flag > 0) ? true : false;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * See if the specified course id is linked in this studyplan
 | 
						|
     * @param int $courseid Id of course to check
 | 
						|
     */
 | 
						|
    public function course_linked($courseid) : bool {
 | 
						|
        global $DB;
 | 
						|
 | 
						|
        $sql = "SELECT COUNT(i.id)
 | 
						|
                FROM {local_treestudyplan}
 | 
						|
                INNER JOIN {local_treestudyplan_line} l ON p.id = l.studyplan_id
 | 
						|
                 {local_treestudyplan_item} i ON l.id = i.line_id
 | 
						|
                WHERE p.id = :planid
 | 
						|
                   AND i.course_id = :courseid";
 | 
						|
        $count = $DB->get_field_sql($sql, ["courseid" => $courseid, "planid" => $this->id]);
 | 
						|
 | 
						|
        return ($count > 0) ? true : false;
 | 
						|
    }
 | 
						|
 | 
						|
 | 
						|
    /**
 | 
						|
     * Get all study lines linked to this plan (quickly)
 | 
						|
     * Used for cohort enrolment cascading
 | 
						|
     * @return studyline[]
 | 
						|
     */
 | 
						|
    public function get_all_studylines() : array {
 | 
						|
        global $DB;
 | 
						|
 | 
						|
        $sql = "SELECT l.id
 | 
						|
                FROM {local_treestudyplan} p
 | 
						|
                INNER JOIN {local_treestudyplan_page} pg ON p.id = pg.studyplan_id
 | 
						|
                INNER JOIN {local_treestudyplan_line} l ON pg.id = l.page_id
 | 
						|
                WHERE p.id = :studyplan_id";
 | 
						|
        $fields = $DB->get_fieldset_sql($sql, ["studyplan_id" => $this->id]);
 | 
						|
 | 
						|
        $list = [];
 | 
						|
        foreach($fields as $id) {
 | 
						|
            $list[] = studyline::find_by_id($id);
 | 
						|
        }
 | 
						|
        return $list;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * List the cohort id's associated with this studyplan
 | 
						|
     */
 | 
						|
    public function get_linked_cohort_ids() {
 | 
						|
        global $CFG, $DB;
 | 
						|
 | 
						|
        $sql = "SELECT DISTINCT j.cohort_id FROM {local_treestudyplan_cohort} j
 | 
						|
                WHERE j.studyplan_id = :studyplan_id";
 | 
						|
        $fields = $DB->get_fieldset_sql($sql, ['studyplan_id' => $this->id]);
 | 
						|
        return $fields;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * List the user id's explicitly associated with this studyplan
 | 
						|
     * @return int[]
 | 
						|
     */
 | 
						|
    public function get_linked_user_ids() : array {
 | 
						|
        global $CFG, $DB;
 | 
						|
 | 
						|
        $sql = "SELECT DISTINCT j.user_id FROM {local_treestudyplan_user} j
 | 
						|
                WHERE j.studyplan_id = :studyplan_id";
 | 
						|
        $fields = $DB->get_fieldset_sql($sql, ['studyplan_id' => $this->id]);
 | 
						|
        return $fields;
 | 
						|
    }
 | 
						|
    /**
 | 
						|
     * See if the specified badge is linked in this studyplan
 | 
						|
     * @param int $badgeid Badge id
 | 
						|
     */
 | 
						|
    public function badge_linked($badgeid) : bool {
 | 
						|
        global $DB;
 | 
						|
 | 
						|
        $sql = "SELECT COUNT(i.id)
 | 
						|
                FROM {local_treestudyplan}
 | 
						|
                INNER JOIN {local_treestudyplan_line} l ON p.id = l.studyplan_id
 | 
						|
                INNER JOIN {local_treestudyplan_item} i ON l.id = i.line_id
 | 
						|
                WHERE p.id = :planid
 | 
						|
                   AND i.badge_id = :badgeid";
 | 
						|
        $count = $DB->get_field_sql($sql, ["badgeid" => $badgeid, "planid" => $this->id]);
 | 
						|
 | 
						|
        return ($count > 0) ? true : false;
 | 
						|
    }
 | 
						|
}
 |