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106 lines
4.4 KiB
PHP
Executable File
106 lines
4.4 KiB
PHP
Executable File
<?php
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///////////////////////////////////////////////////////////////////////////
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// //
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// NOTICE OF COPYRIGHT //
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// //
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// Moodle - Modular Object-Oriented Dynamic Learning Environment //
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// http://moodle.org //
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// //
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// Copyright (C) 1999-onwards Moodle Pty Ltd http://moodle.com //
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// //
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// This program 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 2 of the License, or //
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// (at your option) any later version. //
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// //
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// This program 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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// http://www.gnu.org/copyleft/gpl.html //
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// //
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///////////////////////////////////////////////////////////////////////////
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class data_field_number extends data_field_base {
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var $type = 'number';
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function update_content($recordid, $value, $name='') {
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global $DB;
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$content = new object;
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$content->fieldid = $this->field->id;
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$content->recordid = $recordid;
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$value = trim($value);
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if (strlen($value) > 0) {
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$content->content = floatval($value);
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} else {
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$content->content = null;
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}
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if ($oldcontent = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
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$content->id = $oldcontent->id;
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return $DB->update_record('data_content', $content);
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} else {
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return $DB->insert_record('data_content', $content);
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}
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}
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function display_browse_field($recordid, $template) {
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global $DB;
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if ($content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
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if (strlen($content->content) < 1) {
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return false;
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}
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$number = $content->content;
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$decimals = trim($this->field->param1);
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// only apply number formatting if param1 contains an integer number >= 0:
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if (preg_match("/^\d+$/", $decimals)) {
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$decimals = $decimals * 1;
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// removes leading zeros (eg. '007' -> '7'; '00' -> '0')
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$str = format_float($number, $decimals, true);
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// For debugging only:
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# $str .= " ($decimals)";
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} else {
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$str = $number;
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}
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return $str;
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}
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return false;
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}
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function display_search_field($value = '') {
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return '<input type="text" size="16" name="f_'.$this->field->id.'" value="'.$value.'" />';
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}
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function parse_search_field() {
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return optional_param('f_'.$this->field->id, '', PARAM_NOTAGS);
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}
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// need to cast?
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function generate_sql($tablealias, $value) {
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static $i=0;
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$i++;
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$name = "df_number_$i";
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return array(" ({$tablealias}.fieldid = {$this->field->id} AND {$tablealias}.content = :$name) ", array($name=>$value));
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}
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function get_sort_sql($fieldname) {
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global $DB;
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switch ($DB->get_db_family()) {
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case 'mysql':
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// string in an arithmetic operation is converted to a floating-point number
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return '('.$fieldname.'+0.0)';
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case 'postgres':
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// cast for PG
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return 'CAST('.$fieldname.' AS REAL)';
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default:
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// the rest, just the field name. TODO: Analyse behaviour under MSSQL and Oracle
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return $fieldname;
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}
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}
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}
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