maintenance.php

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<?php
/*
 You may not change or alter any portion of this comment or credits
 of supporting developers from this source code or any supporting source code
 which is considered copyrighted (c) material of the original comment or credit authors.

 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.
*/

class Maintenance
{
    var $db;
    var $prefix;

    function Maintenance()
    {
        global $xoopsDB;
        $db = $xoopsDB;
        $this->db = $db;
        $this->prefix = $this->db->prefix . '_';
    }

    function displayTables($array = true)
    {
        $tables = array();
        $result = $this->db->queryF('SHOW TABLES');
        while ($myrow = $this->db->fetchArray($result)) {
            $value = array_values($myrow);
            $value = substr($value[0], 5);
            $tables[$value] = $value;
        }
        if ($array = true) {
            return $tables;
        } else {
            return join(',', $tables);
        }
    }

    function dump_table_structure($table, $drop)
    {
        $sql_text = '';
        $verif = false;
        $result = $this->db->queryF('SHOW create table `' . $table . '`;');
        if ($result) {
            if ($row = $this->db->fetchArray($result)) {
                $sql_text .= "# Table structure for table `" . $table . "` \n\n";
                if ($drop == 1) {
                    $sql_text .= "DROP TABLE IF EXISTS `" . $table . "`;\n\n";
                }
                $verif = true;
                $sql_text .= $row['Create Table'] . ";\n\n";
            }
        }
        $this->db->freeRecordSet($result);
        $ret['sql_text'] = $sql_text;
        $ret['structure'] = $verif;
        return $ret;
    }

    function dump_table_datas($table)
    {
        $sql_text = '';
        $count = 0;
        $result = $this->db->queryF('SELECT * FROM ' . $table . ';');
        if ($result) {
            $num_rows = $this->db->getRowsNum($result);
            $num_fields = $this->db->getFieldsNum($result);

            if ($num_rows > 0) {
                $field_type = array();
                $i = 0;
                while ($i < $num_fields) {
                    $meta = mysql_fetch_field($result, $i);
                    array_push($field_type, $meta->type);
                    ++$i;
                }

                $sql_text .= "INSERT INTO `" . $table . "` values\n";
                $index = 0;
                while ($row = $this->db->fetchRow($result)) {
                    ++$count;
                    $sql_text .= "(";
                    for ($i = 0; $i < $num_fields; ++$i) {
                        if (is_null($row[$i])) {
                            $sql_text .= "null";
                        } else {
                            switch ($field_type[$i]) {
                                case 'int':
                                    $sql_text .= $row[$i];
                                    break;
                                default:
                                    $sql_text .= "'" . mysql_real_escape_string($row[$i]) . "'";
                            }
                        }
                        if ($i < $num_fields - 1) {
                            $sql_text .= ",";
                        }
                    }
                    $sql_text .= ")";

                    if ($index < $num_rows - 1) {
                        $sql_text .= ",";
                    } else {
                        $sql_text .= ";";
                    }
                    $sql_text .= "\n";
                    ++$index;
                }
            }
        }
        $this->db->freeRecordSet($result);
        $ret['sql_text'] = $sql_text . "\n\n";
        $ret['records'] = $count;
        return $ret;
    }

    function dump_write($sql_text)
    {
        $file_name = "dump_" . date("Y.m.d") . "_" . date("H.i.s") . ".sql";
        $path_file = "../dump/" . $file_name;
        if (file_put_contents($path_file, $sql_text)) {
            $write = true;
        } else {
            $write = false;
        }
        $ret['file_name'] = $file_name;
        $ret['write'] = $write;
        return $ret;
    }
}