Proyectos de Subversion Moodle

<?php

///////////////////////////////////////////////////////////////////////////

//                                                                       //

// NOTICE OF COPYRIGHT                                                   //

//                                                                       //

// Moodle - Modular Object-Oriented Dynamic Learning Environment         //

//          http://moodle.org                                            //

//                                                                       //

// Copyright (C) 1999-onwards Moodle Pty Ltd  http://moodle.com          //

//                                                                       //

// This program 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 2 of the License, or     //

// (at your option) any later version.                                   //

//                                                                       //

// This program 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:                          //

//                                                                       //

//          http://www.gnu.org/copyleft/gpl.html                         //

//                                                                       //

///////////////////////////////////////////////////////////////////////////

class data_field_menu extends data_field_base {

    var $type = 'menu';

    /**

     * priority for globalsearch indexing

     *

     * @var int

     */

    protected static $priority = self::HIGH_PRIORITY;

    public function supports_preview(): bool {

        return true;

    }

    public function get_data_content_preview(int $recordid): stdClass {

        $options = explode("\n", $this->field->param1);

        $options = array_map('trim', $options);

        $selected = $options[$recordid % count($options)];

        return (object)[

            'id' => 0,

            'fieldid' => $this->field->id,

            'recordid' => $recordid,

            'content' => $selected,

            'content1' => null,

            'content2' => null,

            'content3' => null,

            'content4' => null,

        ];

    }

    function display_add_field($recordid = 0, $formdata = null) {

        global $DB, $OUTPUT;

        if ($formdata) {

            $fieldname = 'field_' . $this->field->id;

            $content = $formdata->$fieldname;

        } else if ($recordid) {

            $content = $DB->get_field('data_content', 'content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid));

            $content = trim($content);

        } else {

            $content = '';

        }

        $str = '<div title="' . s($this->field->description) . '">';

        $options = array();

        $rawoptions = explode("\n",$this->field->param1);

        foreach ($rawoptions as $option) {

            $option = trim($option);

            if (strlen($option) > 0) {

                $options[$option] = $option;

            }

        }

        $str .= '<label for="' . 'field_' . $this->field->id . '">';

        $str .= html_writer::span($this->field->name, 'accesshide');

        if ($this->field->required) {

            $image = $OUTPUT->pix_icon('req', get_string('requiredelement', 'form'));

            $str .= html_writer::div($image, 'inline-req');

        }

        $str .= '</label>';

        $str .= html_writer::select($options, 'field_'.$this->field->id, $content, array('' => get_string('menuchoose', 'data')),

                                    array('id' => 'field_'.$this->field->id, 'class' => 'mod-data-input custom-select'));

        $str .= '</div>';

        return $str;

    }

    function display_search_field($content = '') {

        global $CFG, $DB;

        $varcharcontent =  $DB->sql_compare_text('content', 255);

        $sql = "SELECT DISTINCT $varcharcontent AS content

                  FROM {data_content}

                 WHERE fieldid=? AND content IS NOT NULL";

        $usedoptions = array();

        if ($used = $DB->get_records_sql($sql, array($this->field->id))) {

            foreach ($used as $data) {

                $value = $data->content;

                if ($value === '') {

                    continue;

                }

                $usedoptions[$value] = $value;

            }

        }

        $options = array();

        foreach (explode("\n",$this->field->param1) as $option) {

            $option = trim($option);

            if (!isset($usedoptions[$option])) {

                continue;

            }

            $options[$option] = $option;

        }

        if (!$options) {

            // oh, nothing to search for

            return '';

        }

        $return = html_writer::label(get_string('fieldtypelabel', "datafield_" . $this->type),

            'menuf_' . $this->field->id, false, array('class' => 'accesshide'));

        $return .= html_writer::select($options, 'f_'.$this->field->id, $content, array('' => get_string('menuchoose', 'data')),

                array('class' => 'custom-select'));

        return $return;

    }

    public function parse_search_field($defaults = null) {

        $param = 'f_'.$this->field->id;

        if (empty($defaults[$param])) {

            $defaults = array($param => '');

        }

        return optional_param($param, $defaults[$param], PARAM_NOTAGS);

    }

    function generate_sql($tablealias, $value) {

        global $DB;

        static $i=0;

        $i++;

        $name = "df_menu_$i";

        $varcharcontent = $DB->sql_compare_text("{$tablealias}.content", 255);

        return array(" ({$tablealias}.fieldid = {$this->field->id} AND $varcharcontent = :$name) ", array($name=>$value));

    }

    /**

     * Check if a field from an add form is empty

     *

     * @param mixed $value

     * @param mixed $name

     * @return bool

     */

    function notemptyfield($value, $name) {

        return strval($value) !== '';

    }

    /**

     * Return the plugin configs for external functions.

     *

     * @return array the list of config parameters

     * @since Moodle 3.3

     */

    public function get_config_for_external() {

        // Return all the config parameters.

        $configs = [];

        for ($i = 1; $i <= 10; $i++) {

            $configs["param$i"] = $this->field->{"param$i"};

        }

        return $configs;

    }

}