Question

我正在使用codigniter库创建备份＆＃34; dbutil＆＃34;我在我的mysql数据库中有字段，当使用下面给出的代码时，它有数据类型位

 public function run_backup()
    {
        $filename="MembersPro_database_$this->curr_date.sql";
        $filepath="application/upload/DatabaseBackup/$filename";
        $dbfilepath="MembersPro/application/upload/DatabaseBackup/$filename";

        $prefs = array(
            'ignore'        => array(),                     // List of tables to omit from the backup
            'format'        => 'sql',                       // gzip, zip, txt
            'filename'      =>$filepath,                   // File name - NEEDED ONLY WITH ZIP FILES
            'add_drop'      => TRUE,                        // Whether to add DROP TABLE statements to backup file
            'add_insert'          => TRUE,
            "foreign_key_checks"  =>FALSE
           /* 'newline'       => "\n",*/
            // Newline character used in backup file
        );
        $backup="CREATE DATABASE IF NOT EXISTS `MembersManagmentSystem`; USE `MembersManagmentSystem` ";
        $backup .= $this->dbutil->backup($prefs);
        if(!write_file($filepath, $backup))
        {
            echo "Error";die;
        }
        else
        {
            $_SESSION['sucessmsgbackup']="true";
        }
        $this->insert_into_datbase($filename,$dbfilepath);
        redirect("ViewDatabaseBackup");
    }

获取错误的输出插入查询

INSERT INTO `User` (`userId`, `userRoleId`,`userActive`, `userIsDelete`) VALUES ('20000046', '20001','1', '0');

在上面给出的查询＆＃34; userActive＆＃34;和＆＃34; userIsDelete＆＃34;具有数据类型＆＃34; bit＆＃34;的字段并且由DbUtil库创建的查询将其视为字符串，因此我在mysql中收到警告错误

"out of range column value"

Answer 1

Read Here Why you should not use BIT columns in MySQL

Issue reported Here in Github

查看文件夹并修改核心类，以便它不会逃脱，例如对于mysqli驱动程序

system/database/drivers/mysqli

https://github.com/bcit-ci/CodeIgniter/blob/develop/system/database/drivers/mysqli/mysqli_utility.php#L159

并找到文件mysqli_utility.php

找到行

$is_int[$i] = in_array(strtolower($field->type),
                            array('tinyint', 'smallint', 'mediumint', 'int', 'bigint'), //, 'timestamp'),
                            TRUE);

输入数字

numerics
-------------
BIT: 16
TINYINT: 1
BOOL: 1
SMALLINT: 2
MEDIUMINT: 9
INTEGER: 3
BIGINT: 8
SERIAL: 8
FLOAT: 4
DOUBLE: 5
DECIMAL: 246
NUMERIC: 246
FIXED: 246

并将您的数据类型添加到上面的数组中，如下所示

$is_int[$i] = in_array($field->type,
                            array(16, 1, 2, 9, 3, 8),
                            TRUE);

Codigniter备份库创建错误的插入查询

1 个答案: