Weird backticks behaviour in Active Record in CodeIgniter 2.0.3

Question

Previously my all queries were running fine in CI version 2.0 but when I upgraded to 2.0.3 some of my SELECT queries were broken.

CI is adding backticks (``) automatically, but in older version its running as it is.

CI user manual have instructed to add second parameter in

db->select

as

FALSE

but still it's not working.

Code is as following:

class Company_model extends MY_Model
{

----------------

$this->db->select(' count('.$fieldname. ') as num_stations');
$this->db->select(" CONCAT_WS(',', clb_company.address1, clb_company.address2, clb_company.city, clb_company.state, clb_company.zipcode ) as companyAddress");
$this->db->from($this->_table);
$this->db->join($this->_table_device, $fieldname1. " = ".  $fieldname2, 'LEFT');
$this->db->where($blablafield , '0');
----------------

The error is as follows:

Error Number: 1064

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 
'FROM (`clb_device`) JOIN `clb_company` ON `clb_company`.`id` = `clb_device`.`com' at line 2

SELECT `clb_device`.`id` as deviceId, `clb_pricing_specifications`.`name` as pricingSpecName, `clb_company`.`name` as companyName, `clb_device`.`mac_address` as deviceMacAddress, 
`clb_device`.`reseller_model_number` as deviceModelNumber, `clb_pricing_spec_grouping`.`pricing_master_spec_id` as pricingSpecId, `clb_device`.`address` as deviceAddress, 
`clb_device`.`is_home` as deviceIsHomeCharger, CONCAT(clb_company.portal_line1, `'/'`, `clb_device`.`name)` as deviceDisplayName FROM (`clb_device`) JOIN `clb_company` 
ON `clb_company`.`id` = `clb_device`.`company_id` LEFT JOIN `clb_pricing_group_devices` ON `clb_device`.`id` = `clb_pricing_group_devices`.`device_id` and clb_pricing_group_devices.is_active = 1 
LEFT JOIN `clb_pricing_spec_grouping` ON `clb_pricing_group_devices`.`pricing_spec_id` = `clb_pricing_spec_grouping`.`pricing_master_spec_id` LEFT JOIN `clb_pricing_specifications` ON 
`clb_pricing_spec_grouping`.`pricing_spec_id` = `clb_pricing_specifications`.`id` WHERE clb_company.vendor_id is not null AND cast(substr(clb_devi
ce.software_version, 1, 3) as decimal(2,1)) > 2.0 AND clb_device.device_state > 0 GROUP BY `clb_device`.`id` ORDER BY CONCAT(trim(clb_company.portal_line1), `'/'`, trim(clb_device.name)) desc LIMIT 20

Have a look at CONCAT(trim(clb_company.portal_line1), `'/'`, trim(clb_device.name))

Please suggest the workaround.

Answer 1

Use this line before your query:

$this->db->_protect_identifiers=false;

This will stop adding backticks to the built query.