I am trying to get the count() of my sql table. However, I keep getting this error.
Call to a member function master_banner() on null
How can I go about changing my code?
Controller
public function index()
{
//$this->landing_banners_upload();
$config["total_rows"] = count($this->Backend_banner_model->master_banner_list());
$config["per_page"] = 1;
$config["uri_segment"] = 3;
$this->pagination->initialize($config);
$data['per_page']= $config["per_page"];
$data["no_pages"] = $config['total_rows']/$config['per_page'];
$page = ($this->uri->segment(3)) ? $this->uri->segment(3) : 0;
$offset=$page+$config["per_page"];
$data['banners']=$this->Backend_banner_model->master_banner($page,$offset);
count($data['banners']);
$data["links"] = $this->pagination->create_links();
echo $data["links"];
$this->load->view('layout/header');
$this->load->view('backendBanner/landing_banners_upload_view', $data);
$this->load->view('layout/footer');
}
Model
public function master_banner_list(){
$sql="select * from banner";
$query = $this->db->query($sql);
$data = array();
if ($query->num_rows() > 0){
foreach ($query->result() as $row) {
$data[] = $row;
}
}
return $data;
}
public function master_banner($start,$offset){
$sql="SELECT * FROM banner
WHERE RowNum > '".$start."' AND RowNum <= '".$offset."'";
$query = $this->db->query($sql);
$data = array();
foreach ($query->result() as $row) {
$data[] = $row;
}
return $data;
}
Related
Codeigniter pagination with the passing parameter to where clause links not working
Here is my Model
public function record_count($category) {
return $this->db->where('sub_category_name',$category)->count_all_results("categories_item");
}
public function fetch_departments($category,$limit, $start) {
$this->db->limit($limit, $start);
$query=$this->db->where('sub_category_name',$category)->get("categories_item");
if ($query->num_rows() > 0)
{
foreach ($query->result() as $row)
{
$data[] = $row;
}
return $data;
}
return false;
}
//Here is Controller
public function categories_item()
{
$this->load->database();
$this->load->library('pagination');
$this->load->model('Home_model');
$config = array();
$config["base_url"] = base_url() . "Home/categories_item";
$category=$this->uri->segment(3);
$this->db->where('sub_category_name',$category);
$config['total_rows'] = $this->db->get('categories_item')->num_rows();
$config['use_page_numbers'] = TRUE;
$config["per_page"] = 1;
$config["uri_segment"] = 3;
$this->pagination->initialize($config);
$page = ($this->uri->segment(3)) ? ($this->uri->segment(3)) : 0;
$data["link"] = $this->pagination->create_links();
if( !$data["results"] = $this->Home_model->fetch_departments($category,$config["per_page"], $page))
{
error_reporting(1);
}
else
{
$this->load->view("category_item_list",$data);
}
}
I am showing products in a page with a where clause. I am selecting everything from the product table where the category is vegetable, but it's not working. I am new in CodeIgniter. I also checked many questions on the Internet, but nothing is working. If there is anything in this code that is wrong, please tell me.
The controller part:
<?php
class products_list extends CI_Controller
{
function __construct() {
parent::__construct();
$this->load->helper('url'); //to load css base url
$this->load->helper('form');
$this->load->library('form_validation');
$this->load->model("pagination_model");
$this->load->library("pagination");
$this->load->library('table');
}
function vegetables(){
$this ->load->view('includes/header1');
$config['base_url']='http://localhost/mah/index.php/products_list/vegetables';
$vegetable="Vegetable";
$config['total_rows']= $this->db->get_where('product', $vegetable)->num_rows();
$config['per_page'] = 12;
$config['num_links'] = 20;
$config['full_tag_open']='<div id="pagination">';
$config['full_tag_close']='</div>';
$this->pagination->initialize($config);
$page = ($this->uri->segment(3)) ? $this->uri->segment(3) : 0;
$data["results"] = $this->pagination_model->
fetch_product($config["per_page"], $page);
$data["links"] = $this->pagination->create_links();
$this->load->view("product_display", $data);
$this ->load->view('includes/footer');
}
public function article($id)
{
$this ->load->view('includes/header');
$this->load->model('articles_model', 'product');
$article = $this->product->find($id);
$this->load->view('product_details', compact('article'));
}
}
?>
The model part:
<?php
class pagination_model extends CI_Model
{
public function __construct() {
parent::__construct();
}
public function record_count() {
$where="category='vegetable'";
return $this->db->count_all("product");
}
public function fetch_product($limit, $start) {
$this->db->limit($limit, $start);
$query = $this->db->get("product");
if ($query->num_rows() > 0) {
foreach ($query->result() as $row) {
$data[] = $row;
}
return $data;
}
return false;
}
}
?>
Controller method :
cutomise your links as per your requirements and base_url as well
public function vegetables() {
$data = array('title' => 'Products');
$config = array();
$config['base_url'] = base_url().'products_list/vegetables';
$config['total_rows'] = $this->pagination_model->countRows('products');
$config['per_page'] = 5;
$config['attributes'] = array('class' =>'item');
$config['first_link'] = 'First';
$config['cur_tag_open'] = '<a class="active item">';
$config['cur_tag_close'] = '</a>';
$config['next_link'] = 'Next';
$config['last_link'] = 'Last';
$config['prev_link'] = 'Previous';
$this->pagination->initialize($config);
$page = ($this->uri->segment(3)) ? $this->uri->segment(3) : 0;
$data["products"] = $this->pagination_model->getProducts('',$config["per_page"],$page);
$data["categoriesData"] = $this->pagination_model->getProducts('vegetable',$config["per_page"],$page);
$data["links"] = $this->pagination->create_links();
print_r($data);die;
//$this->load->view('templates/header',$data);
$this->load->view('product_display',$data);
//$this->load->view('templates/footer');
}
Your model :
getProducts fetch both type of data
1: if u provide category as first param then it return categories data
2: Otherwise fetch whole table;
public function getProducts($category = NULL, $limit = NULL, $start = NULL)
{
$limit = $limit == NULL ? '' : $limit;
$start = $start == NULL ? '' : $start;
$this->db->order_by('id', 'DESC');
$this->db->limit($limit, $start);
if (empty($category))
{
$query = $this->db->get('products');
}
else
{
$query = $this->db->get_where('products', array('category' => $category));
}
if ($query->num_rows() > 0)
{
foreach ($query->result_array() as $row)
{
$data[] = $row;
}
return $data;
}
}
// total count method
public function countRows($table) {
if (empty($table)) return false;
return $this->db->count_all($table);
}
last but not the least :
add this in controller __contruct() method
public function __construct()
{
parent::__construct();
$this->load->helper(array('url','text','html','form'));
$this->load->library(array('session','form_validation','pagination'));
$this->load->database();
$this->load->model('YourModel');
}
try with this...
$config['total_rows']= $this->db->get_where('product', array('title' => $vegetable))
->num_rows();
Controller[In Article Page Article Properly work with pagination, store user email id in 'articles' database , now i tried to get the user firstname, and lastname from users table but not work properly ]
public function articles()
{
$data['title'] = "Articles";
$config = array();
$config["base_url"] = base_url() . "sd/articles/";
$config["total_rows"] = $this->model_users->record_count_articles();
$config["per_page"] = 10;
$config["uri_segment"] = 3;
$this->pagination->initialize($config);
$page = ($this->uri->segment(3)) ? $this->uri->segment(3) : 0;
$data["results"] = $this->model_users->fetch_result_articles($config["per_page"], $page);
$data["links"] = $this->pagination->create_links();
if ($this->session->userdata ('is_logged_in')){
$data['profile']=$this->model_users->profilefetch();
$this->load->view('sd/header',$data);
$this->load->view('sd/articles', $data);
$this->load->view('sd/footer', $data);
} else {
$this->load->view('sd/sdheader', $data);
$this->load->view('sd/articles', $data);
$this->load->view('sd/sdfooter', $data);
}
}
Model [ Get Users Name in Article Page ]
public function record_count_articles() {
return $this->db->where('status','1')->count_all("articles");
}
public function fetch_result_articles($limit, $start) {
$this->db->limit($limit, $start);
$query = $this->db->where('status','1')->order_by('id', 'DESC')->get("articles");
if ($query->num_rows() > 0) {
foreach ($query->result() as $row) {
$data[] = $row;
}
return $data;
}
return false;
}
Add These Lines [ But Not Work]
if ($query->num_rows() > 0) {
foreach ($query->result() as $row) {
$data[] = $row;
$query = $this->db->select('firstname')->select('lastname')->where('email',$data[0]->email)->get("users");
$data['name_info']=$query->result_array();
}
return $data;
}
return false;
You have 2 problem here. please have a look on comments in code.
if ($query->num_rows() > 0) {
foreach ($query->result() as $row) {
//1) $data[0]->email keep repeating same email.
// inner $query variable should be different.
$innerQuery = $this->db->select('firstname,lastname')->where('email',$row->email)->get("users");
//2) you need to store query result on array.
// $data['name_info'] stores only single record.
$data[]=$innerQuery ->result_array();
}
return $data;
}
return false;
You should avoid query in loop if you can achieve it by join
EDIT: Lets try this with join
public function fetch_result_articles($limit, $start) {
$this->db->limit($limit, $start);
$query = $this->db
->join('users u','u.email = a.email','left')
->where('a.status','1')->order_by('a.id', 'DESC')->get("articles a");
if ($query->num_rows() > 0) {
foreach ($query->result() as $row) {
$data[] = $row;
}
return $data;
}
return false;
}
I have not tested the code. but it is better way than loop.
This question already has answers here:
Error in pagination of codeigniter 1
(3 answers)
Closed 7 years ago.
In model/rci_model.php
public function record_count() {
return $this->db->count_all("produk");
}
public function fetch_countries($limit, $start) {
$this->db->limit($limit, $start);
$query=$this->db->query("SELECT * FROM produk WHERE id_kategori='Men' order by nama_produk ASC");
return $query->result();
if ($query->num_rows() > 0) {
foreach ($query->result() as $row) {
$data[] = $row;
}
return $data;
}
return false;
}
In controller/sandal_clarudo.php
function sandals_for_men(){
$data['seo'] = $this->rci_model->tampil_meta(22);
$this->load->view('head', $data);
$config = array();
$config["base_url"] = "http://localhost/clarudo/index.php/sandal_clarudo/sandals_for_men/";
$config["total_rows"] = $this->rci_model->record_count();
$config["per_page"] = 5;
$config["uri_segment"] = 3;
$this->pagination->initialize($config);
$page = ($this->uri->segment(3)) ? $this->uri->segment(3) : 0;
$data["results"] = $this->rci_model->
fetch_countries($config["per_page"], $page);
$data["links"] = $this->pagination->create_links();
$this->load->view('men', $data);
$this->load->view('footer');
}
In view/men.php
<?php
foreach($results as $t) {
$t->nama_produk
}
<div><?php echo $links; ?></div>
I want to show product that has category = 'Men' only, but in my code showing all category product,it make me confused,help me please.
Just try with this code for your fetch_countries() function
public function fetch_countries($limit, $start) {
$this->db->limit($limit, $start);
$query = $this->db->query("SELECT * FROM produk WHERE id_kategori='Men' order by nama_produk ASC");
return $query->result();
}
what happens here is you are return results if available or return false
In model/rci_model.php
public function record_count() {
return $this->db->count_all("produk");
}
public function fetch_countries($limit, $start) {
$this->db->limit($limit, $start);
$query=$this->db->query("SELECT * FROM produk WHERE id_kategori='Men' order by nama_produk ASC");
return $query->result();
if ($query->num_rows() > 0) {
foreach ($query->result() as $row) {
$data[] = $row;
}
return $data;
}
return false;
}
In controller/sandal_clarudo.php
function sandals_for_men(){
$data['seo'] = $this->rci_model->tampil_meta(22);
$this->load->view('head', $data);
$config = array();
$config["base_url"] = "http://localhost/clarudo/index.php/sandal_clarudo/sandals_for_men/";
$config["total_rows"] = $this->rci_model->record_count();
$config["per_page"] = 5;
$config["uri_segment"] = 3;
$this->pagination->initialize($config);
$page = ($this->uri->segment(3)) ? $this->uri->segment(3) : 0;
$data["results"] = $this->rci_model->
fetch_countries($config["per_page"], $page);
$data["links"] = $this->pagination->create_links();
$this->load->view('men', $data);
$this->load->view('footer');
}
In view/men.php
<?php
foreach($results as $t){
echo "$t->nama_produk";
}
I want to show product that has category = 'Men' only, but using my code it shows all category products. Ideas?
Try This
in cotroller
$count = $this->rci_model->get_count(); //get number of rows
$config['base_url'] = base_url().'index.php/sandal_clarudo/sandals_for_men/';
$config['total_rows'] = $count;
$config['per_page'] = 5;
$config['uri_segment'] = 3;
$limit = $config['per_page'];
$this->pagination->initialize($config);
$page = ($this->uri->segment(3)) ? $this->uri->segment(3) : 0;
$data['links'] = $this->pagination->create_links();
$data["results"] = $this->rci_model->fetch_countries($limit, $page);
in model
public function get_count()
{
//count
$query=$this->db->query("SELECT * FROM produk WHERE id_kategori='Men'");
$result = $query->result_array();
$count = count($result);
return $count;
}
//data from table
public function fetch_countries($limit, $page)
{
$query=$this->db->query("SELECT * FROM produk WHERE id_kategori='Men' LIMIT $page, $limit");
$result = $query->result_array();
return $result;
}
in view
//to show data
<?php
foreach ($results as $new_result)
{
echo $new_result['nama_podak'];
}
?>
//to show pagination
<?php
echo $link//Page segment tabs(you can config boostarp for this)
?>
Try this one. You wrong when using limit.
$query=$this->db->query("SELECT * FROM produk WHERE id_kategori='Men' order by nama_produk ASC LIMIT $limit, $start");
$this->db->limit($limit, $start);
$this->db->where('id_kategori', 'men');
$this->db->order_by('nama_produk');
$query = $this->db->get("produk");
Hope this work!
for count use :
public function record_count($limit, $start) {
$this->db->from('count(id_produk) AS count');
$this->db->where('id_kategori', 'men');
$this->db->order_by('nama_produk');
$this->db->limit($limit, $start);
$return = $query->row_array();
return $return['count'];
}