Codigniter backup library creating wrong insert query - php

Question

i am creating backup using codigniter library "dbutil" and i have fields in my mysql database which having datatype bit when using below given code
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");
}
getting wrong output insert query
INSERT INTO `User` (`userId`, `userRoleId`,`userActive`, `userIsDelete`) VALUES ('20000046', '20001','1', '0');
in above given query "userActive" and "userIsDelete" fields having datatype "bit" and the query create by DbUtil library is treating it as string so i am getting warning error in mysql
"out of range column value"

Answer 1

Read Here Why you should not use BIT columns in MySQL
Issue reported Here in Github
Look into folder and modify core classes so that it will not escape, for example for mysqli driver
system/database/drivers/mysqli
https://github.com/bcit-ci/CodeIgniter/blob/develop/system/database/drivers/mysqli/mysqli_utility.php#L159
and find file mysqli_utility.php
locate line
$is_int[$i] = in_array(strtolower($field->type),
array('tinyint', 'smallint', 'mediumint', 'int', 'bigint'), //, 'timestamp'),
TRUE);
Type numbers
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
and add your datatype to above array like below
$is_int[$i] = in_array($field->type,
array(16, 1, 2, 9, 3, 8),
TRUE);