pagination is not working in codeigniter - php

Question

I am working in CodeIgniter. I want to create pagination for dynamic record. So I have write code like below:
$config = array();
$config["base_url"] = base_url() . "employer/search_user";
$config["per_page"] = 3;
$config['use_page_numbers'] = TRUE;
$config['cur_tag_open'] = ' <a class="current">';
$config['cur_tag_close'] = '</a>';
$config['next_link'] = 'Next';
$config['prev_link'] = 'Previous';
if($this->uri->segment(3)){
$page = ($this->uri->segment(3)) ;
}
else{
$page = 1;
}
$query = "select sn.*,u.first_name,u.last_name,u.email,u.phone,group_concat(DISTINCT s.skill) as sk,group_concat(DISTINCT c.name) as ct from
users as u
left join snapshot as sn on sn.user_id = u.user_id
left join industry as ind on ind.ind_id = sn.industry
left join city c ON(FIND_IN_SET(c.city_id, sn.current_location) > 0)
left join skill s ON(FIND_IN_SET(s.skill_id, sn.skill) > 0)
where ".$where." u.group_id = 3 group by u.user_id limit ".$config["per_page"];
$data['users'] = $this->admin_model->query($query);
$row = count($data['users']);
$config["total_rows"] = $row;
$config['num_links'] = $row;
$this->pagination->initialize($config);
$data["links"] = $this->pagination->create_links();
$data['main_content']="employer/search_user";
$this->load->view('employer/template', $data);
Here, I got 3 records in page but pagination link is not display. I have include pagination library in constructor. I did not get anuthing in $data["links"] this variable.
So where I have to correct my code? What is wrong in my code?

Answer 1

You need to use LIMIT and OFFSET in your query. For example
$config['per_page'] = 3;
$config['uri_segment'] = 4; // This is the current page
$offset = 0;
if ($this->uri->segment($config['uri_segment']) != "") {
$offset = $this->uri->segment($config['uri_segment']);
}
$limit = $config['per_page'];
$sql = "SELECT `field_name` FROM `table_name` WHERE `table_name`.field_name = ?";
if($limit != "") {
$sql .= "LIMIT $limit ";
}
if($offset != "") {
$sql .= "OFFSET $offset";
}
$result = $this->db->query($sql, array($field_data));
Hope this helps

Answer 2

For $config["total_rows"] = $row;
You get only 3. Because You are setting limit in the query.
Kindly write another query for total rows without limit.I think this will solve Your problem.
Below is my pagination code
$config = array();
$config["base_url"] = base_url() . "crm/crm/contactmgmt/modid/" . $modid;
if($this->input->post('Search')=='Search'){
$data['pn']=$data1['pn']=$this->input->post('sel_prod');
//echo "hello";
}
$config["total_rows"] = $this->Crm_model->record_count_unsubinst();
$config["per_page"] = 6;
$this->load->config('pagination');
$config["uri_segment"] = 6;
$config['enable_query_strings']='true';
$data['activeTab'] = "View";
$this->pagination->initialize($config);
$page = ($this->uri->segment(6)) ? $this->uri->segment(6) : 0;
$data['query'] = $this->Crm_model->listUnsubscribedInstn($config["per_page"], $page);
$data["link"] = $this->pagination->create_links();
$data["links"]=$data["link"];
$data["cnt"]=$config["total_rows"];
$data["sno"]=$this->uri->segment(6);