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/>.

/**

 * UI element representing the finalgrade column.

 *

 * @package   gradereport_singleview

 * @copyright 2014 Moodle Pty Ltd (http://moodle.com)

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

 */

namespace gradereport_singleview\local\ui;

defined('MOODLE_INTERNAL') || die;

use stdClass;

/**

 * UI element representing the finalgrade column.

 *

 * @package   gradereport_singleview

 * @copyright 2014 Moodle Pty Ltd (http://moodle.com)

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

 */

class finalgrade extends grade_attribute_format implements unique_value, be_disabled, be_readonly {

    /**

     * Name of this input

     * @var string $name

     */

    public $name = 'finalgrade';

    /**

     * Get the value for this input.

     *

     * @return null|string The value based on the grade_grade.

     */

    public function get_value(): ?string {

        $this->label = $this->grade->grade_item->itemname;

        $val = $this->grade->finalgrade;

        if ($this->grade->grade_item->scaleid) {

            return $val ? (int)$val : -1;

        } else {

            return $val ? format_float($val, $this->grade->grade_item->get_decimals()) : '';

        }

    }

    /**

     * Get the label for this input.

     *

     * @return string The label for this form input.

     */

    public function get_label(): string {

        if (!isset($this->grade->label)) {

            $this->grade->label = '';

        }

        return $this->grade->label;

    }

    /**

     * Is this input field disabled.

     *

     * @return bool Set disabled on this input or not.

     */

    public function is_disabled(): bool {

        $locked = 0;

        $gradeitemlocked = 0;

        $overridden = 0;

        // Disable editing if grade item or grade score is locked

        // if any of these items are set,  then we will disable editing

        // at some point, we might want to show the reason for the lock

        // this code could be simplified, but its more readable for steve's little mind.

        if (!empty($this->grade->locked)) {

            $locked = 1;

        }

        if (!empty($this->grade->grade_item->locked)) {

            $gradeitemlocked = 1;

        }

        if ($this->grade->grade_item->is_overridable_item() and !$this->grade->is_overridden()) {

            $overridden = 1;

        }

        return ($locked || $gradeitemlocked || $overridden);

    }

    /**

     * Return true if this is read-only.

     *

     * @return bool

     */

    public function is_readonly(): bool {

        global $USER;

        return empty($USER->editing);

    }

    /**

     * Create the element for this column.

     *

     * @return element

     */

    public function determine_format(): element {

        global $CFG;

        if ($this->grade->grade_item->load_scale()) {

            $scale = $this->grade->grade_item->load_scale();

            $options = [-1 => get_string('nograde')];

            foreach ($scale->scale_items as $i => $name) {

                $options[$i + 1] = $name;

            }

            return new dropdown_attribute(

                $this->get_name(),

                $options,

                $this->get_label(),

                $this->get_value(),

                $this->is_disabled(),

                $this->is_readonly()

            );

        } else {

            $textattribute = new text_attribute(

                $this->get_name(),

                $this->get_value(),

                $this->get_label(),

                $this->is_disabled(),

                $this->is_readonly()

            );

            // Set min/max attributes, if applicable.

            $textattribute->set_type('number');

            $gradeitem = $this->grade->grade_item;

            $decimals = $gradeitem->get_decimals();

            // Min attribute.

            $minvalue = null;

            if (isset($gradeitem->grademin)) {

                $minvalue = format_float($gradeitem->grademin, $decimals);

            }

            $textattribute->set_min($minvalue);

            // Max attribute.

            $maxvalue = null;

            if (isset($gradeitem->grademax) && empty($CFG->unlimitedgrades)) {

                $maxvalue = format_float($gradeitem->grademax, $decimals);

            }

            $textattribute->set_max($maxvalue);

            return $textattribute;

        }

    }

    /**

     * Save the altered value for this field.

     *

     * @param string $value The new value.

     * @return string Any error string

     */

    public function set($value) {

        $userid = $this->grade->userid;

        $gradeitem = $this->grade->grade_item;

        $feedback = false;

        $feedbackformat = false;

        if ($gradeitem->gradetype == GRADE_TYPE_SCALE) {

            $value = (int)unformat_float($value);

            if ($value == -1) {

                $finalgrade = null;

            } else {

                $finalgrade = $value;

            }

        } else {

            $finalgrade = unformat_float($value);

        }

        $errorstr = '';

        if ($finalgrade) {

            $bounded = $gradeitem->bounded_grade($finalgrade);

            if ($bounded > $finalgrade) {

                $errorstr = 'lessthanmin';

            } else if ($bounded < $finalgrade) {

                $errorstr = 'morethanmax';

            }

        }

        if ($errorstr) {

            $user = get_complete_user_data('id', $userid);

            $gradestr = new stdClass;

            if (has_capability('moodle/site:viewfullnames', \context_course::instance($gradeitem->courseid))) {

                $gradestr->username = fullname($user, true);

            } else {

                $gradestr->username = fullname($user);

            }

            $gradestr->itemname = $this->grade->grade_item->get_name();

            $errorstr = get_string($errorstr, 'grades', $gradestr);

            return $errorstr;

        }

        // Only update grades if there are no errors.

        $gradeitem->update_final_grade($userid, $finalgrade, 'singleview', $feedback, FORMAT_MOODLE,

            null, null, true);

        return '';

    }

}