Codeigniter 4 Query Builder loses SELECT and WHERE condition while executing once more - codeigniter-4

Question

I am using Codeigniter 4 Query Builder.
Following is code to retrieve data from the database
public function get_data()
{
$where = [
'username' => 'admin'
];
$this->_builder = $this->_db->table('pf_user_master s');
$this->_builder->join('pf_role_master r', 'r.role_id = s.role_id');
$this->_builder->select('username, first_name, last_name, mobile, email, r.role_name, s.status');
if (is_array($where) && !empty($where)) {
$this->_builder->where($where);
}
$first= $this->_builder->get()->getResultArray();
print_r($first);
$second= $this->_builder->get()->getResultArray();
print_r($second);
exit;
}
I am getting the following output:
In variable $first I am getting output as expected
Array
(
[0] => Array
(
[username] => admin
[first_name] => Fisrt
[last_name] => Last
[mobile] =>
[email] => first.last#gmail.com
[role_name] => Admin
[status] => 1
)
)
But in variable $second it Query Builder loses SELECT, WHERE condition and also JOIN.
And prints the output as follows:
Array
(
[0] => Array
(
[user_id] => 1
[username] => admin
[password] => 21232f297a57a5a743894a0e4a801fc3
[first_name] => First
[last_name] => Last
[mobile] =>
[email] => first.last#gmail.com
[role_id] => 1
[status] => 1
[created_by] =>
[created_date] => 2020-09-08 19:30:52
[updated_by] =>
[updated_date] => 2020-09-08 19:32:42
)
[1] => Array
(
[user_id] => 2
[username] => superadmin
[password] => 21232f297a57a5a743894a0e4a801fc3
[first_name] => NewFirst
[last_name] => NewLast
[mobile] =>
[email] => new.new#gmail.com
[role_id] => 1
[status] => 1
[created_by] =>
[created_date] => 2020-09-08 21:51:42
[updated_by] =>
[updated_date] =>
)
)

Answer 1

I've not tested this and it comes from reading the documentation only.
In the CodeIgniter documentation get() has the following parameters
get([$limit = NULL[, $offset = NULL[, $reset = TRUE]]]])
Reference: https://codeigniter.com/user_guide/database/query_builder.html#get
If you were to use
$first= $this->_builder->get(NULL,NULL,FALSE)->getResultArray();
Then your code would become:
public function get_data()
{
$where = [
'username' => 'admin'
];
$this->_builder = $this->_db->table('pf_user_master s');
$this->_builder->join('pf_role_master r', 'r.role_id = s.role_id');
$this->_builder->select('username, first_name, last_name, mobile, email, r.role_name, s.status');
if (is_array($where) && !empty($where)) {
$this->_builder->where($where);
}
$first= $this->_builder->get(NULL,NULL,FALSE)->getResultArray();
print_r($first);
$second= $this->_builder->get()->getResultArray();
print_r($second);
exit;
}
Of course if you were to perform this a 3rd time, the 2nd instance should cause a reset.
The Code is the Documentation ( in most cases ) so we have
In CodeIgniter 4.04 - /system/Database/BaseBuilder.php - Line 1824
The code is
/**
* Get
*
* Compiles the select statement based on the other functions called
* and runs the query
*
* #param integer $limit The limit clause
* #param integer $offset The offset clause
* #param boolean $reset Are we want to clear query builder values?
*
* #return ResultInterface
*/
public function get(int $limit = null, int $offset = 0, bool $reset = true)
{
if (! is_null($limit))
{
$this->limit($limit, $offset);
}
$result = $this->testMode
? $this->getCompiledSelect($reset)
: $this->db->query($this->compileSelect(), $this->binds, false);
if ($reset === true)
{
$this->resetSelect();
// Clear our binds so we don't eat up memory
$this->binds = [];
}
return $result;
}
So the default for $reset, will "clear" what you have observed.

Answer 2

As mentioned by TimBrownlaw
I changed
$first= $this->_builder->get()->getResultArray();
to
$first= $this->_builder->get(NULL, 0 , false)->getResultArray();
and it worked for me as it didn't reset the query as third parameter of get() is for resetting the query