Delete with checkboxes in Codeigniter with Pagination - php

Question

I am trying to apply delete function on selected record in my application. the problem is that the record are displayed in pagination ie 3,4 rows, i am able to delete record from the first page but when i move to the second page and select few records, the delete record buton doesn't work. any adivise will really help.
I am looking for replies
here is my code for listings
public function index($offset=0)
{
if ( $this->session->userdata('u_name') == FALSE )
{
$data['page_title']="Admin Login";
redirect('admin/login',"refresh",$data);
}
$this->load->model('candidate_model');
$limit=4;
$results=$this->candidate_model->get_all_Candidate($limit,$offset);
$data['candidates']=$results['rows'];
$offset = $this->uri->segment(3, 0);
$data['num_results']=$results['num_rows'];
$this->load->library('pagination');
$config=array();
$config['first_url'] = 'candidateList/index';
$config['base_url']=site_url('candidateList/index');
$config['total_rows']=$data['num_results'];
$config['per_page']=$limit;
$config['uri_segment']=3;
$config['first_link'] = '>';
$config['first_tag_open'] = '<div>';
$config['first_tag_close'] = '</div>';
$this->pagination->initialize($config);
$data['page_title']="Candidate List";
$this->load->view('manageCandidate',$data);
}
my code for delete function is bellow
if($this->input->post('Delete')=='Delete')
{
for($i=0;$i<count($_POST['checkbox']);$i++)
{
$candidate_id = $_POST['checkbox'][$i];
$this->candidate_model->deleteCandidate($candidate_id);
$this->session->set_flashdata('deleteSelected','Selected Candidate has been deleted.');
}
$data['page_title']="Candidate List";
redirect('candidateList',$data);
}
Delete function is here:
public function candidate()
{
if ( $this->session->userdata('u_name') == FALSE )
{
$data['page_title']="Admin Login";
redirect('admin/login',"refresh",$data);
}
$checkList=$this->input->post('checkbox');
$this->load->model('candidate_model');
if($checkList!=NULL)
{
if($this->input->post('Delete')=='Delete')
{
for($i=0;$i<count($_POST['checkbox']);$i++)
{
$candidate_id = $_POST['checkbox'][$i];
$this->candidate_model->deleteCandidate($candidate_id);
$this->session->set_flashdata('deleteSelected','Selected Candidate has been deleted.');
}
$data['page_title']="Candidate List";
redirect('candidateList',$data);
}
else if($this->input->post('Email')=='Email')
{
for($i=0;$i<count($_POST['checkbox']);$i++)
{
$admin_id = $_POST['checkbox'][$i];
$email_to[$i] = $_POST['checkbox'][$i];
$data['email_to'] = $email_to;
}
$data['page_title']='Send Mail';
$this->load->view('admin/sendmail4',$data);
}
}
else
{
$this->session->set_flashdata('deleteSelect','Please Select at-least one Candidate.');
$data['page_title']="Candidate List";
redirect('candidateList',$data);
}
}
ManageCandidate code:
<?php
$this->load->view('includes/template3');
?>
<?php
$this->load->view('includes/superAdminMenu');
?>
<div class="dashboard">
Add Candidate
<?php if($this->session->flashdata('deleteCandidate')) : ?>
<p class="successMsg"><?php echo $this->session->flashdata('deleteCandidate')?></p>
<?php endif; ?>
<?php if($this->session->flashdata('editCandidate')) : ?>
<p class="successMsg"><?php echo $this->session->flashdata('editCandidate')?></p>
<?php endif; ?>
<?php if($this->session->flashdata('deleteSelected')) : ?>
<p class="successMsg"><?php echo $this->session->flashdata('deleteSelected')?></p>
<?php endif; ?>
<?php if($this->session->flashdata('deleteSelect')) : ?>
<p class="noRows"><?php echo $this->session->flashdata('deleteSelect')?></p>
<?php endif; ?>
<?php if($this->session->flashdata('msgSent')) : ?>
<p class="successMsg"><?php echo $this->session->flashdata('msgSent')?></p>
<?php endif; ?>
<?php
if($num_results==0)
{ ?>
<p class="noRows"><?php echo "You have not added any Candidate.";?></p>
<?php }
else
if($num_results>0)
{ ?>
<form action="candidateList/candidate" method="post" name="sendMail" class="addformClass" id="candidateList1">
<!-- Script by hscripts.com -->
<!-- copyright of HIOX INDIA -->
<!-- Free javascripts # http://www.hscripts.com -->
<script type="text/javascript">
checked=false;
function checkedAll (candidateList1) {
var aa= document.getElementById('candidateList1');
if (checked == false)
{
checked = true
}
else
{
checked = false
}
for (var i =0; i < aa.elements.length; i++)
{
aa.elements[i].checked = checked;
}
}
</script>
<!-- Script by hscripts.com -->
<?php if(isset($candidates)) { ?>
<div class="candidateTable">
<div class="candidateRowHeading">
<div class="candidateHeadingChkBox">
<h4><input type='checkbox' name='checkall' onclick='checkedAll(candidateList1);'>
</h4>
</div><!--END candidateHeadingChkBox-->
<div class="candidateColHeading1">
<h4>Candidate Name</h4>
</div><!--END candidateColHeading1-->
<div class="candidateColHeading3">
<h4>Email</h4>
</div><!--END candidateColHeading3-->
<div class="candidateColHeading4" style="display:none">
<h4>Status</h4>
</div><!--END candidateColHeading4-->
<div class="candidateColHeading6">
<h4>Recruiter Assigned</h4>
</div><!--END candidateColHeading6-->
<div class="candidateColHeading5">
<h4>Action</h4>
</div><!--END candidateColHeading5-->
</div><!--END candidateRowHeading-->
<?php $count=0; ?>
<?php foreach ($candidates as $candidate) { ?>
<div class="candidateRowData">
<div class="candidateColChkBox">
<input name="checkbox[]" type="checkbox" id="checkbox[]" value="<?php echo $candidate->candidate_id; ?>">
</div><!--END candidateColChkBox-->
<div class="candidateColData1">
<?php echo anchor('admin/viewCandidate/'.$candidate->candidate_id, $candidate->first_name." ".$candidate->last_name); ?>
</div><!--END candidateColData1-->
<div class="candidateColData3">
<h4><?php echo $candidate->email; ?></h4>
</div><!--END candidateColData3-->
<div class="candidateColData4" style="display:none">
<h4><?php echo $candidate->lead_status; ?></h4>
</div><!--END candidateColData4-->
<div class="candidateColData6">
<h4>
<?php if($candidate->recruiter_id_fk!=0) { ?>
<?php echo get_recruiterFirstName($candidate->recruiter_id_fk); ?>
<?php echo get_recruiterLastName($candidate->recruiter_id_fk); ?>
<?php echo " (<strong>"; ?>
<?php echo get_recruiterLogin($candidate->recruiter_id_fk); ?>
<?php echo "</strong>) "; ?>
<?php }
else if($candidate->recruiter_id_fk==0) { ?>
<?php echo "Not Assigned"; ?>
<?php } ?>
</h4>
</div><!--END candidateColData6-->
<div class="candidateColData5">
<?php echo anchor('admin/editCandidate/'.$candidate->candidate_id,'Edit'); ?>
<?php echo anchor('admin/deleteCandidate/'.$candidate->candidate_id,'Delete'); ?>
</div><!--END candidateColData5-->
</div><!--END candidateRowData-->
<?php $count++; } ?>
</div><!--END candidateTableCom-->
<?php } ?>
<?php } ?>
<?php if(isset($candidates)) { ?>
<div id="pageNum">
<?php echo $this->pagination->create_links(); ?>
</div>
<?php } ?>
<?php
if($num_results>0) {
echo '<input type="submit" name="Delete" class="emailAllBtn" value="Delete" />';
echo '<input type="submit" name="Email" class="emailAllBtn" value="Email" />';
echo "</form>";
} ?>
</div>
<?php
$this->load->view('includes/footer2');
?>
<?php
function get_recruiterFirstName($id)
{
$CI =& get_instance();
$mod = $CI->load->model('recruiter_model');
$count = $CI->recruiter_model->get_recruiterFirstName($id);
return $count;
}
?>
<?php
function get_recruiterLastName($id)
{
$CI =& get_instance();
$mod = $CI->load->model('recruiter_model');
$count = $CI->recruiter_model->get_recruiterLastName($id);
return $count;
}
?>
<?php
function get_recruiterLogin($id)
{
$CI =& get_instance();
$mod = $CI->load->model('recruiter_model');
$count = $CI->recruiter_model->get_recruiterLogin($id);
return $count;
}
?>

Answer 1

Small mistake exist in your pagination code offset value correct it
public function index($offset=0)
{
if ( $this->session->userdata('u_name') == FALSE )
{
$data['page_title']="Admin Login";
redirect('admin/login',"refresh",$data);
}
$this->load->model('candidate_model');
$limit=4;
//whenever you are calling this pagination offset value you need to fetch it from URL
$offset_url = $offset = $this->uri->segment(3, 0);
//if it's not exist take the default value
$offset = is_numeric($offset_url)?$offset_url:$offset;
$results=$this->candidate_model->get_all_Candidate($limit,$offset);
$data['candidates']=$results['rows'];
..............
}