Adding student in only specific class list using codeigniter - codeigniter

Question

I have a problem in viewing only a class list that I choose and add student but when I select other class it will also appear/view that I select in previous class
here I select the class that I select
Here is the class page that I select and then I add student
but when I choose another class it will also appear the student
here is my controller:
public function viewspecificclass($id)
{
if($this->session->userdata('logged_in'))
{
$this->output->set_header('Expires: Sat, 26 Jul 1997 05:00:00 GMT');
$this->output->set_header('Cache-Control: no-cache, no-store, must-revalidate, max-age=0');
$this->output->set_header('Cache-Control: post-check=0, pre-check=0', FALSE);
$this->output->set_header('Pragma: no-cache');
$session_data = $this->session->userdata('logged_in');
$data['Username'] = $session_data['Username'];
$row=$this->model_adminlogin->getonerowclass($id);
$data['r']=$row;
$data['classid'] = $id;
$this->load->view('individualviewclass',$data);
} else{
redirect('welcome', 'refresh');
}
if((!isset($session_data) || $session_data !=TRUE)) {
redirect('welcome', 'refresh');
}
}
public function addstudentnow($classid, $studentid){
$data= array(
'ClassId'=>$classid,
'Id'=> $studentid
);
$this->db->insert('enroll',$data);
$this->session->set_flashdata('category_success', 'Successfully Add!');
redirect('enrollment/viewspecificclass ');
}
here is my model:
function statusofenrollment(){
$this->db->select('*');
$this->db->from('studentinformation');
$this->db->join('statusofenrollment', 'statusofenrollment.Id = studentinformation.Id', 'left');
$query = $this->db->get();
return $query->result();
}
function studentinclasslist(){
$this->db->select('*');
$this->db->from('statusofenrollment');
$this->db->join('studentinformation', 'studentinformation.Id = statusofenrollment.Id', 'right');
$this->db->join('enroll', 'enroll.Id = studentinformation.Id', 'right');
$query = $this->db->get();
return $query->result();
}
here is the view:
<div class="z table-responsive">
<table class=" table table-striped ">
<thead>
<tr>
<th class="text-center">LRN</th>
<th class="text-center">First name</th>
<th class="text-center"> Middle name</th>
<th class="text-center">Last name</th>
<th class="text-center">Gender</th>
<th class="text-center">Status of Enrollment</th>
<th class="text-center"> </th>
</tr>
</thead>
<?php
foreach($this->model_adminlogin->studentinclasslist() as $row){
?>
<tr>
<td class="text-capitalize text-center"><?php echo $row->Idnumber ?></td>
<td class="text-capitalize text-center"><?php echo $row -> Firstname ?></td>
<td class="text-capitalize text-center"><?php echo $row->Middlename ?></td>
<td class="text-capitalize text-center"><?php echo $row->Lastname ?></td>
<td class="text-capitalize text-center"><?php echo $row->Sex ?></td>
<td class="text-capitalize text-center"><?php echo $row->Statusofenrollment ?></td>
<td class="text-capitalize text-center">
</td>
</tr>
<?php
}
?>
</table>
</div>
<div id="myModalpick" class="modal fade" role="dialog">
<!-- Modal content-->
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title text-center">Student Status</h4>
</div>
<div class="modal-body">
<div class="z table-responsive">
<table class=" table table-striped ">
<thead>
<tr>
<th class="text-center">LRN</th>
<th class="text-center">First name</th>
<th class="text-center"> Middle name</th>
<th class="text-center">Last name</th>
<th class="text-center">Gender</th>
<th class="text-center">Status of Enrollment</th>
<th class="text-center"> </th>
</tr>
</thead>
<?php
foreach($this->model_adminlogin->statusofenrollment() as $row){
?>
<tr>
<td class="text-capitalize text-center"><?php echo $row->Idnumber ?></td>
<td class="text-capitalize text-center"><?php echo $row -> Firstname ?></td>
<td class="text-capitalize text-center"><?php echo $row->Middlename ?></td>
<td class="text-capitalize text-center"><?php echo $row->Lastname ?></td>
<td class="text-capitalize text-center"><?php echo $row->Sex ?></td>
<td class="text-capitalize text-center"><?php echo $row->Statusofenrollment ?></td>
<td class="text-capitalize text-center">
Add To Class List
</td>
</tr>
<?php
}
?>
</table>
</div>
</div>
<div class="modal-footer">
<button type="submit" class="btn btn-default" >Ok</button>
<button type="button" class="btn btn-default" data-dismiss="modal">Cancel</button>
</div>
</div>
</div>

Answer 1

because of the fact that your code is totally unorganized it makes hard to help you - but i'll give it a shot
first of all in your models Function studenClassList you've to pass an id from the specific class because other wise you'll get on any request the students of all of your classes - change your model like this
function studentinclasslist($classId){
$query = $this->db
->select('studentinformation.*')
->from('statusofenrollment')
->join('studentinformation', 'studentinformation.Id = statusofenrollment.Id', 'right')
->join('enroll', 'enroll.Id = studentinformation.Id', 'right')
->where("class.Id",$classId)
->get();
return $query->result();
}
be aware that you have to change in the where construct the actual class.Id field because i wasn't able to see where it is
and after that in your view simply pass the ID to your model function
foreach($this->model_adminlogin->studentinclasslist($classId) as $row){
but in any case i must say, in my opinion it isn't a good idea in CI to use a model in your view because the controller should pass the prepared model data to the view