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           efrain | 
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           <?php
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           // This file is part of Moodle - http://moodle.org/
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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 <http://www.gnu.org/licenses/>.
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           /**
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            * Checkbox element used for bulk inserting values in the gradebook.
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            *
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            * @package   gradereport_singleview
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            * @copyright 2014 Moodle Pty Ltd (http://moodle.com)
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            * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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            */
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           namespace gradereport_singleview\local\ui;
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           defined('MOODLE_INTERNAL') || die;
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           /**
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            * Checkbox element used for bulk inserting values in the gradebook.
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            *
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            * @package   gradereport_singleview
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            * @copyright 2014 Moodle Pty Ltd (http://moodle.com)
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            * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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            */
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           class bulk_insert extends element {
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               /** @var string $applyname To store the "apply" suffix. */
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               protected $applyname;
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               /** @var string $selectname To store the "type" suffix. */
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               protected $selectname;
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               /** @var string $insertname To store the "value" suffix. */
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               protected $insertname;
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               /**
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                * Constructor
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                *
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                * @param mixed $item The grade item or user.
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                */
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               public function __construct($item) {
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                   $this->name = 'bulk_' . $item->id;
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                   $this->applyname = $this->name_for('apply');
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                   $this->selectname = $this->name_for('type');
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                   $this->insertname = $this->name_for('value');
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               }
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               /**
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                * Is this checkbox checked?
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                *
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                * @param array|object $data The form data
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                * @return bool
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                */
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               public function is_applied($data): bool {
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                   return isset($data->{$this->applyname});
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               }
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               /**
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                * Get the type of this input (user or grade)
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                *
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                * @param array|object $data The form data
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                * @return string
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                */
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               public function get_type($data): string {
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                   return $data->{$this->selectname};
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               }
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               /**
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                * Get the value from either the user or grade.
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                *
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                * @param array|object $data The form data
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                * @return string
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                */
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               public function get_insert_value($data): string {
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                   return $data->{$this->insertname};
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               }
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               /**
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                * Generate the html for this form element.
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                *
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                * @return string HTML
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                */
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               public function html(): string {
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                   global $OUTPUT;
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                   $text = new text_attribute($this->insertname, "0", 'bulk');
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                   $context = (object) [
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                       'label' => get_string('bulklegend', 'gradereport_singleview'),
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                       'applylabel' => get_string('bulkperform', 'gradereport_singleview'),
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                       'applyname' => $this->applyname,
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                       'menuname' => $this->selectname,
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                       'menulabel' => get_string('bulkappliesto', 'gradereport_singleview'),
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                       'menuoptions' => [
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                           ['value' => 'all', 'name' => get_string('all_grades', 'gradereport_singleview')],
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                           ['value' => 'blanks', 'name' => get_string('blanks', 'gradereport_singleview'), 'selected' => true],
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                       ],
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                       'valuename' => $this->insertname,
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                       'valuefield' => $text->html()
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                   ];
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                   return $OUTPUT->render_from_template('gradereport_singleview/bulk_insert', $context);
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               }
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               /**
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                * This form element has 3 elements with different suffixes.
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                * Generate the name with the suffix.
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                *
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                * @param string $extend The suffix.
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                * @return string
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                */
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               private function name_for($extend) {
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                   return "{$this->name}_$extend";
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               }
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           }
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