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📄 autocomplete.php(2.62 KB)
📄 base.php(4.27 KB)
📄 boolean_select.php(3.46 KB)
📄 category.php(3.69 KB)
📄 course_selector.php(2.36 KB)
📄 date.php(14.48 KB)
📄 duration.php(5.13 KB)
📄 number.php(7.32 KB)
📄 select.php(5.01 KB)
📄 tags.php(5.13 KB)
📄 text.php(7.31 KB)
📄 user.php(4.4 KB)

Editing: select.php

<?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/>.

declare(strict_types=1);

namespace core_reportbuilder\local\filters;

use MoodleQuickForm;
use core_reportbuilder\local\helpers\database;

/**
 * Select report filter
 *
 * The options for the select are defined when creating the filter by calling {@see set_options} or {@see set_options_callback}
 *
 * To extend this class in your own filter (e.g. to pre-populate available options), you should override the {@see get_operators}
 * and/or {@see get_select_options} methods
 *
 * @package     core_reportbuilder
 * @copyright   2021 David Matamoros <davidmc@moodle.com>
 * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class select extends base {

/** @var int Any value */
    public const ANY_VALUE = 0;

/** @var int Equal to */
    public const EQUAL_TO = 1;

/** @var int Not equal to */
    public const NOT_EQUAL_TO = 2;

/**
     * Returns an array of comparison operators
     *
     * @return array
     */
    protected function get_operators(): array {
        $operators = [
            self::ANY_VALUE => get_string('filterisanyvalue', 'core_reportbuilder'),
            self::EQUAL_TO => get_string('filterisequalto', 'core_reportbuilder'),
            self::NOT_EQUAL_TO => get_string('filterisnotequalto', 'core_reportbuilder')
        ];

return $this->filter->restrict_limited_operators($operators);
    }

/**
     * Return the options for the filter as an array, to be used to populate the select input field
     *
     * @return array
     */
    protected function get_select_options(): array {
        return (array) $this->filter->get_options();
    }

/**
     * Adds controls specific to this filter in the form.
     *
     * @param MoodleQuickForm $mform
     */
    public function setup_form(MoodleQuickForm $mform): void {
        $elements = [];
        $elements['operator'] = $mform->createElement('select', $this->name . '_operator',
            get_string('filterfieldoperator', 'core_reportbuilder', $this->get_header()), $this->get_operators());

// If a multi-dimensional array is passed, we need to use a different element type.
        $options = $this->get_select_options();
        $element = (count($options) == count($options, COUNT_RECURSIVE) ? 'select' : 'selectgroups');
        $elements['value'] = $mform->createElement($element, $this->name . '_value',
            get_string('filterfieldvalue', 'core_reportbuilder', $this->get_header()), $options);

$mform->addElement('group', $this->name . '_group', '', $elements, '', false);

$mform->hideIf($this->name . '_value', $this->name . '_operator', 'eq', self::ANY_VALUE);
    }

/**
     * Return filter SQL
     *
     * Note that operators must be of type integer, while values can be integer or string.
     *
     * @param array $values
     * @return array array of two elements - SQL query and named parameters
     */
    public function get_sql_filter(array $values): array {
        $name = database::generate_param_name();

$operator = $values["{$this->name}_operator"] ?? self::ANY_VALUE;
        $value = $values["{$this->name}_value"] ?? 0;

$fieldsql = $this->filter->get_field_sql();
        $params = $this->filter->get_field_params();

// Validate filter form values.
        if (!$this->validate_filter_values((int) $operator, $value)) {
            // Filter configuration is invalid. Ignore the filter.
            return ['', []];
        }

switch ($operator) {
            case self::EQUAL_TO:
                $fieldsql .= "=:$name";
                $params[$name] = $value;
                break;
            case self::NOT_EQUAL_TO:
                $fieldsql .= "<>:$name";
                $params[$name] = $value;
                break;
            default:
                return ['', []];
        }
        return [$fieldsql, $params];
    }

/**
     * Validate filter form values
     *
     * @param int|null $operator
     * @param mixed|null $value
     * @return bool
     */
    private function validate_filter_values(?int $operator, $value): bool {
        return !($operator === null || $value === '');
    }

/**
     * Return sample filter values
     *
     * @return array
     */
    public function get_sample_values(): array {
        return [
            "{$this->name}_operator" => self::EQUAL_TO,
            "{$this->name}_value" => 1,
        ];
    }
}

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