Codeigniter - select dropdown wont updated - php

Question

i have a form which included an select dropdown which is id_constructor, the problem is the all remaining data is updated into the database except the id_constructor, my table looks like this :
teams
id_team
name
id_constructor
created_at
modified_at
And here is my code :
Controller :
$this->load->database();
$this->load->helper('form');
$this->load->library(array('form_validation'));
$this->load->model('back-end/m_masterteam','teams');
$this->load->model('back-end/m_masterconstructors','constructors');
public function edit($id_team)
{
$data['teams_data'] = $this->teams->getTeam($id_team);
$data['constructors_data'] = $this->constructors->getAllConstructor();
$this->load->view('back-end/template/header');
$this->load->view('back-end/edit-team', $data);
$this->load->view('back-end/template/footer');
}
public function updateTeam()
{
$id_team = $this->input->post('id_team');
$name = $this->input->post('name');
$id_constructor = $this->input->post('id_constructor');
$modified_at = $this->input->post('modified_at');
$data = array(
'id_team' => $this->input->post('id_team'),
'name' => $this->input->post('name'),
'id_constructor' => $this->input->post('id_constructor'),
'modified_at' => date('Y-m-d H:i:s')
);
// print_r($data);exit();
$this->teams->update($data, $id_team);
echo json_encode(array("status" => TRUE));
redirect('admin-page/MasterTeam/');
}
Model :
var $table = 'teams';
var $column = array('name','id_constructor','created_at','modified_at');
var $order = array('teams.name' => 'desc');
function update($data, $id_team)
{
$this->db->where('id_team', $id_team);
$this->db->update('teams', $data);
}
And here is the view for the select option :
<form action="<?php echo base_url('admin-page/MasterTeam/updateTeam') ?>" method="post">
<div class="form-group row">
<label for="inputPassword" class="col-sm-2 col-form-label">Constructor</label>
<div class="col-sm-10">
<select class="form-control" name="id_constructor">
<?php foreach($constructors_data as $row)
{?>
<option value="<?php echo $teams_data->id_constructor; ?>"<?php if($row->id_constructor==$teams_data->id_constructor) echo 'selected="selected"';?>><?php echo $row->name; ?></option>
<?php
}
?>
</select>
</div>
</div>
And here is the result for print_r() :
Array ( [id_team] => 16 [name] => test21 [id_constructor] => 3
[modified_at] => 2022-02-28 13:42:11 )
all data except the id_constructor is updated in the database, anyone know the solution? any help is really appreciated. thank you!.