The name and the description of each form should be different from each other and should be able to reflect on what's written on the database. As you can see, my code keeps reading the same details. What should I do?
MY MODEL
<?php
defined ('BASEPATH') OR exit ('No direct script access allowed');
class Agrivest_model extends CI_Model{
public function __construct(){
parent:: __construct();
$this->load->database();
}
public function get_category_tb(){
$this->db->from('category_tb');
$this->db->limit(1);
$query=$this->db->get();
return $query->result();
}
MY CONTROLLER
defined ('BASEPATH') OR exit ('No direct script access allowed');
class Agrivest extends CI_Controller {
function __construct(){
parent::__construct();
$this->load->helper('url');
$this->load->model('agrivest_model'); }
public function index(){
$data['category_tb'] = $this->agrivest_model->get_category_tb();
$this->load->view('landing_page', $data); }
MY VIEW
<?php foreach ($category_tb as $post){?>
<p class="category_description"><?php echo $post->category_description; ?> </p>
try this
public function index($cat_id){
$data['category_tb'] = $this->agrivest_model->get_category_tb($cat_id);
$this->load->view('landing_page', $data);
}
public function get_category_tb($cat_id){
$query=$this->db->get_where('category_tb', array('id' => $cat_id), 1, 1);
return $query->result();
}
don't forget to pass parameter category_id in your url
Related
I'm trying to fetch a single row from my database but I can't seem to make it work. The problem is that the code is fetching the whole column instead. I can't figure out what's wrong with my code. Please help
<?php
defined ('BASEPATH') OR exit ('No direct script access allowed');
class Agrivest_model extends CI_Model
{
public function __construct()
{
parent:: __construct();
$this->load->database();
}
public function get_category_tb()
{
$this->db->from('category_tb');
$query=$this->db->get();
return $query->result();
}
}
<?php foreach ($category_tb as $post){?>
<h4 class="category_name"><?php echo $post->category_name; ?> </h4>
<?php } ?>
Try this
public function __construct()
{
parent:: __construct();
$this->load->database();
}
public function get_category_tb()
{
$this->db->from('category_tb');
$query=$this->db->get()->row();
return $query->category_name;
}
I am new in codeigniter and i am working on ecommerce template. By default whenever index() has been hit, it's showing all products in different sections (in html) and I want to make this dynamic so should I use queries in index() for get different type of records or there is any other way? This is my code:
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Home extends CI_Controller {
public function index()
{
//echo "hello world";
$this->load->view('index');
}
}
?>
First need to create database and table as per your requirement.
Then you can create model for reference check this link : https://www.codeigniter.com/userguide3/general/models.html
<?php
class Blog_model extends CI_Model {
public function get_data_first()
{
$query = $this->db->get('entries', 10);
return $query->result();
}
public function get_data_second()
{
$query = $this->db->get('entries', 10);
return $query->result();
}
}
?>
After making model go to your controller and include it like:
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Home extends CI_Controller {
public function index()
{
$this->load->model('my_model');
$data['first_list'] = $this->my_model->get_data_first();
$data['second_list'] = $this->my_model->get_data_second();
//echo "hello world";
$this->load->view('index', $data);
}
}
?>
Then use you param in index file like :
<html>
<head></head>
<body>
<?php
if($first_list){
foreach($first_list as $each){
echo $each->my_param;
}
}
?>
<?php
if($second_list){
foreach($second_list as $each){
echo $each->my_param2;
}
}
?>
</body>
</html>
I hope this helpful for you.
In Models folder write Home_model.php file for querying database.
Suppose you have a table called 'products'.
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Home_model extends CI_Model{
public function __construct()
{
parent::__construct();
}
public function getProducts()
{
$this->db->from('products');
$query=$this->db->get();
$out = $query->result_array();
return $out;
}
}
The function 'getProducts' will get you all the products from 'products' table.
Now in your controller load the 'database' library and the model.
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Home extends CI_Controller {
function __construct(){
parent::__construct();
$this->load->model('home_model');
$this->load->library('database');
}
public function index(){
$products = array();
$products = $this->home_model->getProducts();
$this->load->view('index',$products);
}
}
In index function function of controller you can call the 'getProduct' function of model.And can pass the data to view.
Documentation link for model.
enter link description here
I hope this helps.
Model :
class Users_model extends CI_Model {
function __construct() {
parent::__construct();
$this->load->database();
}
public function get_all_users() {
return $this->db->get('users');
}
}
Controller :
class Users extends CI_Controller {
function __construct() {
parent::__construct();
$this->load->helper('form');
$this->load->helper('url');
$this->load->helper('security');
$this->load->model('Users_model');
}
public function index() {
redirect('users/view_users');
}
public function view_users() {
$data['query'] = $this->Users_model->get_all_users();
$this->load->view('users/view_all_users', $data);
}
}
My question is where should i put the $this->load->database? In Model or Constructor? If possible tell me why?
And one more question, if i omit the $this->load->database, the error shown
"Undefined property: Users::$db". I'm expecting "Undefined property:
Users_model::$db".
Why is that? Is it looking for $db in both controller or model?
Thank you.
Note: i can connect to database just fine. What im actually ask is if i want to use $this->load->database(). Where should i put it? Controller or Model? And why?
You can either load the database in the controller or you can load it in the model.There's not much of a difference its just more neat and clean that all the interaction in the database is in the model and the controllers the one who connects both views and model.The controller here is like a middleman between the buyer and the seller.
load database in the controller
<?php
class Test_controller extends CI_Controller {
public function __construct()
{
parent::__construct();
$this->load->database('default');
$this->load->model('test_model');
}
public function index()
{
$this->db->from('test');
$query = $this->db->get();
echo "<title>CodeIgniter SQlite</title>";
$data['db']=$query->result();
//print_r($data['db']);
$count = count($data['db']);
echo "Row count: $count rows<br>";
for ($i=0; $i < $count; $i++) {
echo $data['db'][$i]->text." ";
}
}
}
?>
load database in the model
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Test_model extends CI_Model
{
public $table1 = 'test';
public $table2 = '';
public function __construct()
{
parent::__construct();
$this->load->database('default');
}
public function check_db()
{
$this->db->from($this->table1);
$query = $this->db->get();
return $query->result();
}
}
Go to autoload.php in application/config/autoload.php and add this
$autoload['libraries'] = array('database'); // add database in array(now you dont need to load database at anywhere in project)
Make database connection settings in database.php, file located atapplication/config/database.php
now try this
class Users_model extends CI_Model {
function __construct() {
parent::__construct();
//$this->load->database(); <----remove this
}
public function get_all_users() {
return $this->db->get('users');
}
}
I have this in a codeigniter controller:
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Test extends CI_Controller {
public $idioma;
public function index() {
parent::__construct();
// get the browser language.
$this->idioma = strtolower(substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2));
$data["idioma"] = $this->idioma;
$this->load->view('inicio', $data);
}
public function hello(){
$data["idioma"] = $this->idioma;
$this->load->hello('inicio', $data);
}
}
Inicio view:
INICIO <?php echo $idioma ?>
hello view:
Hello <?php echo $idioma ?>
The inicio view works great, but when the hello view is loaded there's nothing displayed.
Any idea why this is not working?
If you wish to set a class property automatically you would do it in the constructor, not in index(). index() does not run before other methods if they are called directly. In your case I assume you're calling hello via the url as test/hello
class Test extends CI_Controller {
public $idioma;
public function __construct(){
parent::__construct();
// get the browser language.
$this->idioma = strtolower(substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2));
}
public function index() {
$data["idioma"] = $this->idioma;
$this->load->view('inicio', $data);
}
public function hello(){
$data["idioma"] = $this->idioma;
$this->load->hello('inicio', $data);
}
}
I have this controller
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Main extends CI_Controller {
function __construct()
{
parent::__construct();
$this->load->helper('url');
$this->load->helper('text');
}
public function index()
{
$this->home();
}
public function home()
{
$data['title']="Somesite";
$this->load->view("view_home", $data);
}
public function blog()
{
$data['title']="Somesite";
$this->load->view("view_blog", $data);
}
public function answers()
{
$data['title']="Somesite";
$this->load->view("view_answers", $data);
}
}
As you may see $data['title'] is same for all functions, how to make it simpler, to include at the beggining and not to write it in every function, repeat again, and then transfer to view.
Is there a way to tranfer it to function?
Before construct function add this:
public $data = array();
Then in the construct function write:
$this->data['title']="Somesite";
And finally before load view add this:
$data = $this->data + $data;
Now you have same $title everywhere.
Here si simple solution and elegant for transfering one variable to all views :)
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Main extends CI_Controller {
//Class-wide variable to store stats line
protected $title;
function __construct()
{
parent::__construct();
$data->title = "Some site";
$this->load->vars($data);
}
I'm using this method in every projects.
Controller
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Users extends CI_Controller {
//Global variable
public $outputData = array();
public $loggedInUser;
public function __construct() {
parent::__construct();
}
public function index() {
$this->load->helper('url');
$this->load->view('users/users');
}
public function register() {
parent::__construct();
$this->load->helper('url');
$this->load->model('users_model');
//get country names
$countryList = $this->users_model->getCountries();
$this->outputData['countryList'] = $countryList;
$this->outputData['pageTitle'] = "User Registration";
$this->load->view('users/register',$this->outputData);
}
}
View file
<?php if(isset($pageTitle)) echo $pageTitle; ?>
<?php
if(isset($countryList)){
print_r($countryList);
}
?>