How to get an id of the user in Codeigniter?

Question

This is actually very easy but yet I am confused how to do this: I have Reseller that can request X-number of users to admin. So that value gets saved to database. Now when admin logs in he can see the requests of resellers. Like this :

Now Admin Can either approve or reject the request. If He approves the request the code creates users in users table mapped to that reseller. The mapping is done with a unique field called Key Now Creating users works perfectly but my problem is :

When I click on Approve it creates users but for only for the reseller wit id = 1. I want to create something like when I click on first record it creates users for 1st reseller and when on 2nd same as above[This is as per the image]. This is my view:

<?php if(count($users)): foreach($users as $user): ?>
<tr class="odd gradeX">
    <td><?php echo  $user->id; ?></td>
    <td><?php echo  $user->user_requested; ?></td>
    <td><?php echo  $user->key; ?></td>
    <td><?php echo  $user->date_requested; ?></td>
    <td><a href="reseller/create_user" class="btn btn-primary">Yes&nbsp<i class="glyphicon glyphicon-ok"></i></a></td>
    <td><a href="reseller/change_status" class="btn btn-danger">No&nbsp<?php echo'<i class="glyphicon glyphicon-trash"></i>';?></a></td>
    <td><a href="" class="btn btn-success"><?php echo  $user->status; ?></td>&nbsp</a></td>
</tr>

<?php endforeach; ?>
<?php else: ?>
<tr>
    <td colspan="3">There are no new Requests.</td>
</tr>
<?php endif; ?> 

The Controller

public function create_user()
{
    $this->load->model('more_m');
    $id= $this->session->userdata('id');
    $rajan =$this->more_m->get(array('user_requested',$id));
    $request=$rajan->user_requested;        

    $this->load->model('reseller_m');

    $query=$this->db->select('key');
    $query=$this->db->get('reseller');

    if($query->num_rows() > 0)
    {
        $row = $query->row_array();
        $key= $row['key'];
    }

    for($i=1; $i<=$request;$i++)
    {

        $userdata=array('key'=>$key);

        $this->db->insert('users',$userdata);

    }

    $this->load->model('more_m');
    $id = $this->session->userdata('id');
    $this->db->set('status', "'approved'",FALSE);
    $this->db->where('id',$id);
    $this->db->update('user_request');

    redirect('admin/new_user');
}

My mistake is in controller where I define $id. As when admin logs in his id would be fetched I don't know how to fetch the id of the reseller as per the record.

Answer 1

Its so simple with Codeigniter

What you have to do is pass the ID with the URL (You are wrong Use base_url() as well with the pointing controller)

ex <td><a href="<?php echo base_url()?>reseller/create_user/<?php echo $user->key; ?>"

so now your URL looks like (assume id is equal to 2)

http://localhost/<path to project>/reseller/create_user/2

so in Controller

function create_user($id)//So this know incoming Value to this
{
   //then in here
   echo $id; //this will show 2
   //Continue rest of your code with $id
}

Answer 2

If you wanna do it in php way,You can pass key in your url and get key in your controller using $this->uri->segment(n)

   <?php if(count($users)): foreach($users as $user): ?>
    <tr class="odd gradeX">
        <td><?php echo  $user->id; ?></td>
        <td><?php echo  $user->user_requested; ?></td>
        <td><?php echo  $user->key; ?></td>
        <td><?php echo  $user->date_requested; ?></td>
        <td><a href="reseller/create_user/<?php echo  $user->key; ?>" class="btn btn-primary">Yes&nbsp<i class="glyphicon glyphicon-ok"></i></a></td>
        <td><a href="reseller/change_status" class="btn btn-danger">No&nbsp<?php echo'<i class="glyphicon glyphicon-trash"></i>';?></a></td>
        <td><a href="" class="btn btn-success"><?php echo  $user->status; ?></td>&nbsp</a></td>
    </tr>

    <?php endforeach; ?>
    <?php else: ?>
    <tr>
        <td colspan="3">There are no new Requests.</td>
    </tr>
    <?php endif; ?> 

If you want jquery+php than use ajax.

add value attr. to button pass your key.

<button id="some_id" value="YOURKEY">Click Me</button

This is your script to update :

<script> 
$('body').on('click',"#some_id", function(){ 
var key =$(this).attr("value"); 
//Now you got ur key you can use ajax to update and change location of page on success 
}); 
</script>