class.ilPCLearningHistory.php

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<?php

/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */


class ilPCLearningHistory extends ilPageContent
{
    protected $user;

    public $dom;

    public function init()
    {
        global $DIC;

        $this->user = $DIC->user();
        $this->setType("lhist");
    }

    public function setNode($a_node)
    {
        parent::setNode($a_node);               // this is the PageContent node
        $this->lhist_node = $a_node->first_child();             // this is the skill node
    }

    public function create(ilPageObject $a_pg_obj, string $a_hier_id, $a_pc_id = "")
    {
        $this->node = $this->createPageContentNode();
        $a_pg_obj->insertContent($this, $a_hier_id, IL_INSERT_AFTER, $a_pc_id);
        $this->lhist_node = $this->dom->create_element("LearningHistory");
        $this->lhist_node = $this->node->append_child($this->lhist_node);
    }
    
    public function setFrom($a_val)
    {
        $this->lhist_node->set_attribute("From", $a_val);
    }
    
    public function getFrom()
    {
        return $this->lhist_node->get_attribute("From");
    }
    
    public function setTo($a_val)
    {
        $this->lhist_node->set_attribute("To", $a_val);
    }

    public function getTo()
    {
        return $this->lhist_node->get_attribute("To");
    }
    
    public function setClasses($a_val)
    {
        // delete properties
        $children = $this->lhist_node->child_nodes();
        for ($i = 0; $i < count($children); $i++) {
            $this->lhist_node->remove_child($children[$i]);
        }
        // set classes
        foreach ($a_val as $key => $class) {
            $prop_node = $this->dom->create_element("LearningHistoryProvider");
            $prop_node = $this->lhist_node->append_child($prop_node);
            $prop_node->set_attribute("Name", $class);
        }
    }
    
    public function getClasses()
    {
        $classes = [];
        // delete properties
        $children = $this->lhist_node->child_nodes();
        for ($i = 0; $i < count($children); $i++) {
            $classes[] = $children[$i]->get_attribute("Name");
        }
        return $classes;
    }
    

    public static function afterPageUpdate($a_page, DOMDocument $a_domdoc, $a_xml, $a_creation)
    {
    }
    
    public static function beforePageDelete($a_page)
    {
    }

    public static function afterPageHistoryEntry($a_page, DOMDocument $a_old_domdoc, $a_old_xml, $a_old_nr)
    {
    }

    public static function getLangVars()
    {
        return array("ed_insert_learning_history", "pc_learning_history");
    }

    public function modifyPageContentPostXsl($a_html, $a_mode)
    {
        $lng = $this->lng;
        $ilPluginAdmin = $this->plugin_admin;

        $start = strpos($a_html, "{{{{{LearningHistory");
        if (is_int($start)) {
            $end = strpos($a_html, "}}}}}", $start);
        }

        while ($end > 0) {
            $param = substr($a_html, $start + 5, $end - $start - 5);
            $param = str_replace(' xmlns:xhtml="http://www.w3.org/1999/xhtml"', "", $param);
            $param = explode("#", $param);
            $from = $param[1];
            $to = $param[2];
            $classes = explode(";", $param[3]);
            $classes = array_map(function ($i) {
                return trim($i);
            }, $classes);


            $a_html = substr($a_html, 0, $start) .
                $this->getPresentation($from, $to, $classes, $a_mode) .
                substr($a_html, $end + 5);

            if (strlen($a_html) > $start + 5) {
                $start = strpos($a_html, "{{{{{LearningHistory", $start + 5);
            } else {
                $start = false;
            }
            $end = 0;
            if (is_int($start)) {
                $end = strpos($a_html, "}}}}}", $start);
            }
        }

        return $a_html;
    }

    protected function getPresentation($from, $to, $classes, $a_mode) : string
    {
        if ($a_mode == "preview" || $a_mode == "presentation" || $a_mode == "print") {
            if ($this->getPage()->getParentType() == "prtf") {
                $user_id = ilObject::_lookupOwner($this->getPage()->getPortfolioId());
            }
        }
        if ($user_id > 0) {
            $tpl = new ilTemplate("tpl.pc_lhist.html", true, true, "Services/LearningHistory");
            $hist_gui = new ilLearningHistoryGUI();
            $hist_gui->setUserId($user_id);
            $from_unix = ($from != "")
                ? (new ilDateTime($from . " 00:00:00", IL_CAL_DATETIME))->get(IL_CAL_UNIX)
                : null;
            $to_unix = ($to != "")
                ? (new ilDateTime($to . " 23:59:59", IL_CAL_DATETIME))->get(IL_CAL_UNIX)
                : null;
            $classes = (is_array($classes))
                ? array_filter($classes, function ($i) {
                    return ($i != "");
                })
                : null;
            if (count($classes) == 0) {
                $classes = null;
            }
            $tpl->setVariable("LHIST", $hist_gui->getEmbeddedHtml($from_unix, $to_unix, $classes, $a_mode));
            return $tpl->get();
        }

        return ilPCLearningHistoryGUI::getPlaceHolderPresentation();
    }
}