codeigniter pagination - how to keep on same page after deleting row - codeigniter

Question

I am using codeigniter pagination library and doing update and delete through form. The problem is when I delete or update any record after delete or update I redirected back to 1st page even if I am at 4th page. How I can redirected to the same page at which I have done update or delete.
Here is my controller code for update and delete functions:
public function update_att(){
if(isset($_POST['update'])){
$u_id = $_POST['at_id'];
if($_POST['status']=="Present"){
$data = array(
'status'=>"Absent"
);
$this->db->where('at_id', $u_id);
$this->db->update('attendence', $data);
}elseif ($_POST['status']=="Absent") {
$data = array(
'status'=>"Present"
);
$this->db->where('at_id', $u_id);
$this->db->update('attendence', $data);
}
redirect("usr/att_list", "refresh");
}
}
public function delete_att(){
if (isset($_POST['delete'])) {
$at_id = $_POST['at_id'];
$this->db->where('at_id', $at_id);
$this->db->delete('attendence');
}
redirect("usr/att_list" );
}
Currently I am redirecting to the first page , any suggestion how I redirect to that page where I have done delete or update.

Answer 1

Add <input type='hidden' name='current_page' value='<?php echo $current_page?>' /> to your form.
Keep in mind you need to populate $current_page with something like
$current_page = ''; // empty means first page
if( isset($_REQUEST['current_page'] ){
$current_page = $_REQUEST['current_page'];
}
Then based on your sample you just modifiy the redirect path as follows (for both your functions):
public function delete_att(){
if (isset($_POST['delete'])) {
$at_id = $_POST['at_id'];
$this->db->where('at_id', $at_id);
$this->db->delete('attendence');
}
redirect("usr/att_list".(strlen($current) ? "?".$current : "" );
}
Note:
Your path to your page should look something like this domain.com/controller/your_page_with_pagination/?current_page=A_NUMBER then in your controller/your_page_with_pagination you adjust the data you wish to output based on $_GET['current_page']
Edit based on your link:
public function att_list($id = ""){
/**
* Keep your data in array
*/
$this->data = array();
/**
* Add the page number ($id) to the array
* Check for url /:id first , or else check for a $_GET/$_POST current_page (this will be triggered when you submit your form)
*/
$this->data['current_page'] = is_numeric($id) ? $id : (isset($_REQUEST['current_page'] ? $_REQUEST['current_page']: 0);
/**
* This is your 'keep on the same page' line
* $this->data['current_page'] will act as an offset in your query
* You can read about 'offset' here https://www.w3schools.com/php/php_mysql_select_limit.asp
* $this->data['my_desired_records'] must be generated into your <form> ... </form> , and the same form must contain the input with name='current_page'
*/
$this->data['my_desired_records'] = $this->your_model->get_data($this->data['current_page']);
/**
* Pass the whole array into your view
*/
$this->load->view('path/to/view', $this->data);
}
Then in your view add in your form <input type='hidden' name='current_page' value='<?php echo $this->data['current_page']?>' />