Proyectos de Subversion Moodle

<?php

// This file is part of Moodle - http://moodle.org/

//

// Moodle is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

//

// Moodle is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**

 * Edit a calculated grade item

 *

 * @package   core_grades

 * @copyright 2007 Petr Skoda

 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

require_once '../../../config.php';

require_once $CFG->dirroot.'/grade/lib.php';

require_once $CFG->libdir.'/mathslib.php';

require_once 'calculation_form.php';

$courseid  = required_param('courseid', PARAM_INT);

$id        = required_param('id', PARAM_INT);

$section   = optional_param('section', 'calculation', PARAM_ALPHA);

$idnumbers = optional_param_array('idnumbers', null, PARAM_RAW);

$url = new moodle_url('/grade/edit/tree/calculation.php', array('id'=>$id, 'courseid'=>$courseid));

if ($section !== 'calculation') {

    $url->param('section', $section);

}

$PAGE->set_url($url);

if (!$course = $DB->get_record('course', array('id' => $courseid))) {

    throw new \moodle_exception('invalidcourseid');

}

require_login($course);

$context = context_course::instance($course->id);

require_capability('moodle/grade:manage', $context);

$PAGE->set_pagelayout('admin');

navigation_node::override_active_url(new moodle_url('/grade/edit/tree/index.php',

    array('id'=>$course->id)));

// default return url

$gpr = new grade_plugin_return();

$returnurl = $gpr->get_return_url($CFG->wwwroot.'/grade/report/index.php?id='.$course->id);

if (!$grade_item = grade_item::fetch(array('id'=>$id, 'courseid'=>$course->id))) {

    throw new \moodle_exception('invaliditemid');

}

// activity items and items without grade can not have calculation

if ($grade_item->is_external_item() or ($grade_item->gradetype != GRADE_TYPE_VALUE and $grade_item->gradetype != GRADE_TYPE_SCALE)) {

    redirect($returnurl, get_string('errornocalculationallowed', 'grades'));

}

$mform = new edit_calculation_form(null, array('gpr'=>$gpr, 'itemid' => $grade_item->id));

if ($mform->is_cancelled()) {

    redirect($returnurl);

}

$calculation = calc_formula::localize($grade_item->calculation);

$calculation = grade_item::denormalize_formula($calculation, $grade_item->courseid);

$mform->set_data(array('courseid'=>$grade_item->courseid, 'calculation'=>$calculation, 'id'=>$grade_item->id, 'itemname'=>$grade_item->itemname));

$errors = array();

if ($data = $mform->get_data()) {

    $calculation = calc_formula::unlocalize($data->calculation);

    $grade_item->set_calculation($calculation);

    redirect($returnurl);

} elseif (!empty($section) AND $section='idnumbers' AND !empty($idnumbers)) { // Handle idnumbers separately (non-mform)

    //first validate and store the new idnumbers

    foreach ($idnumbers as $giid => $value) {

        if ($gi = grade_item::fetch(array('id' => $giid))) {

            if ($gi->itemtype == 'mod') {

                $cm = get_coursemodule_from_instance($gi->itemmodule, $gi->iteminstance, $gi->courseid);

            } else {

                $cm = null;

            }

            if (!grade_verify_idnumber($value, $COURSE->id, $gi, $cm)) {

                $errors[$giid] = get_string('idnumbertaken');

                continue;

            }

            if (empty($gi->idnumber) and !$gi->add_idnumber($idnumbers[$gi->id])) {

                $errors[$giid] = get_string('error');

                continue;

            }

        } else {

            $errors[$giid] = 'Could not fetch the grade_item with id=' . $giid;

        }

    }

}

$gtree = new grade_tree($course->id, false, false);

$strgrades          = get_string('grades');

$strgraderreport    = get_string('graderreport', 'grades');

$strcalculationedit = get_string('editcalculation', 'grades');

$PAGE->navbar->add($strcalculationedit);

print_grade_page_head($courseid, 'settings', null, $strcalculationedit, false, false, false);

$mform->display();

// Now show the gradetree with the idnumbers add/edit form

echo '

<form class="mform" id="mform2" method="post" action="' . $CFG->wwwroot . '/grade/edit/tree/calculation.php?courseid='.$courseid.'&amp;id='.$id.'">

    <div style="display: none;">

        <input type="hidden" value="'.$id.'" name="id"/>

        <input type="hidden" value="'.$courseid.'" name="courseid"/>

        <input type="hidden" value="'.$gpr->type.'" name="gpr_type"/>

        <input type="hidden" value="'.$gpr->plugin.'" name="gpr_plugin"/>

        <input type="hidden" value="'.$gpr->courseid.'" name="gpr_courseid"/>

        <input type="hidden" value="'.sesskey().'" name="sesskey"/>

        <input type="hidden" value="idnumbers" name="section"/>

    </div>

    <fieldset id="idnumbers" class="clearfix">

        <legend class="ftoggler">'.get_string('idnumbers', 'grades').'</legend>

        <div class="fcontainer clearfix">

            <ul>

            ' . get_grade_tree($gtree, $gtree->top_element, $id, $errors) . '

            </ul>

        </div>

    </fieldset>

    <div class="fitem" style="text-align: center;">

        <input id="id_addidnumbers" type="submit" class="btn btn-secondary" value="' . get_string('addidnumbers', 'grades') . '" name="addidnumbers" />

    </div>

</form>';

echo $OUTPUT->footer();

die();

/**

 * Simplified version of the print_grade_tree() recursive function found in grade/edit/tree/index.php

 * Only prints a tree with a basic icon for each element, and an edit field for

 * items without an idnumber.

 * @param object $gtree

 * @param object $element

 * @param int $current_itemid The itemid of this page: should be excluded from the tree

 * @param array $errors An array of idnumbers => error

 * @return string

 */

function get_grade_tree(&$gtree, $element, $current_itemid=null, $errors=null) {

    global $CFG;

    $object     = $element['object'];

    $eid        = $element['eid'];

    $type       = $element['type'];

    $grade_item = $object->get_grade_item();

    $name = $object->get_name();

    $return_string = '';

    //TODO: improve outcome visualisation

    if ($type == 'item' and !empty($object->outcomeid)) {

        $name = $name.' ('.get_string('outcome', 'grades').')';

    }

    $idnumber = $object->get_idnumber();

    // Don't show idnumber or input field for current item if given to function. Highlight the item instead.

    if ($type != 'category') {

        if (is_null($current_itemid) OR $grade_item->id != $current_itemid) {

            if ($idnumber) {

                $name .= ": [[$idnumber]]";

            } else {

                $closingdiv = '';

                if (!empty($errors[$grade_item->id])) {

                    $name .= '<div class="error"><span class="error">' . $errors[$grade_item->id].'</span><br />'."\n";

                    $closingdiv = "</div>\n";

                }

                $name .= '<label class="accesshide" for="id_idnumber_' . $grade_item->id . '">' . get_string('gradeitems', 'grades')  .'</label>';

                $name .= '<input class="idnumber" id="id_idnumber_'.$grade_item->id.'" type="text" name="idnumbers['.$grade_item->id.']" />' . "\n";

                $name .= $closingdiv;

            }

        } else {

            $name = "<strong>$name</strong>";

        }

    }

    $icon = grade_helper::get_element_icon($element, true);

    $last = '';

    $catcourseitem = ($element['type'] == 'courseitem' or $element['type'] == 'categoryitem');

    if ($type != 'category') {

        $return_string .= '<li class="'.$type.'">'.$icon.$name.'</li>' . "\n";

    } else {

        $return_string .= '<li class="'.$type.'">'.$icon.$name . "\n";

        $return_string .= '<ul class="catlevel'.$element['depth'].'">'."\n";

        $last = null;

        foreach($element['children'] as $child_el) {

            $return_string .= get_grade_tree($gtree, $child_el, $current_itemid, $errors);

        }

        if ($last) {

            $return_string .= get_grade_tree($gtree, $last, $current_itemid, $errors);

        }

        $return_string .= '</ul></li>'."\n";

    }

    return $return_string;

}