I'm trying to get the comments of teacher and principal to show up in view, all to no avail.
This is a school web app where parents get to view the results of their respective children. Just below the scores is the teacher's and principal comments.
Now, these comments show up in students' view but I'm having a hard time making it show up on the parents' view.
This is the model:
Comment_model.php
<?php
if (!defined('BASEPATH'))
exit('No direct script access allowed');
class Comment_model extends CI_Model {
public function __construct() {
parent::__construct();
$this->current_session = $this->setting_model->getCurrentSession();
$this->current_session_name = $this->setting_model->getCurrentSessionName();
$this->start_month = $this->setting_model->getStartMonth();
}
public function TeacherComment($data)
{
$this->db->insert('teacher_comments', $data);
return $query = $this->db->affected_rows();
}
public function UpdateTeacherComment($data, $id)
{
$this->db->where('id', $id);
$this->db->update('teacher_comments', $data);
return $query = $this->db->affected_rows();
}
public function GetTeacherComment($student_id, $session_id)
{
$this->db->select('*');
$this->db->where('student_id', $student_id);
$this->db->where('session_id', $session_id);
return $this->db->get('teacher_comments')->row();
}
public function PrincipalComment($data)
{
$this->db->insert('principal_comments', $data);
return $this->db->affected_rows();
}
public function UpdatePrincipalComment($data, $id)
{
$this->db->where('id', $id);
$this->db->update('principal_comments', $data);
return $query = $this->db->affected_rows();
}
public function GetPrincipalComment($student_id, $session_id)
{
$this->db->select('*');
$this->db->where('student_id', $student_id);
$this->db->where('session_id', $session_id);
return $this->db->get('principal_comments')->row();
}
}
The Controller I'm battling with:
$data['teacher_comment'] = $this->Comment_model->GetTeacherComment($id, $student_session_id);
$data['principal_comment'] = $this->Comment_model->GetPrincipalComment($id, $student_session_id);
How do I properly put it in function?
The view:
<span> CLASS TEACHER'S REMARK:
<u style="text-transform: uppercase;"><?php echo $teacher_comment->teacher_comment; ?> </u>
</span><br>
<br>
<span>PRINCIPAL REMARK:
<u style="text-transform: uppercase;"><?php echo $principal_comment->principal_comment; ?></u>
</span>
Let suppose this is your controller file.
class customview extends CI_Controller {
public function __construct()
{
parent::__construct();
$this->load->model("Comment_model");
}
public function yourViewFunction()
{
// get your $id and $student_session_id
$data['teacher_comment'] = $this->Comment_model->GetTeacherComment($id, $student_session_id);
$data['principal_comment'] = $this->Comment_model->GetPrincipalComment($id, $student_session_id);
$this->load->view('your_html_view',$data); //this is the view file name without php
}
}
And now in your html view you can call like this:
print_r($teacher_comment); //you can view the array or object get from model
print_r($principal_comment); //you can view the array or object get from model
Related
I don't know if the title above is an correct title about my question.
Is there a way to declare a variable which we can access it from anywhere in view without need to redefine it again in each function in controller?
for example in controller file Students.php contains many function that handle the views, take a look below :
public function __construct() {
parent::__construct();
$data['count_student'] = $this->m_data->allStudent(); // count all students
}
public function index() {
$data['content'] = 'view-students';
$this->load->view('frontend/header' , $data);
}
public function showDetails() {
$data['content'] = 'view-detail-students';
$this->load->view('frontend/header' , $data);
}
I expected we can access $count_student in both view-students.php and view-detail-student.php without to define $data['count_student'] = $this->m_data->allStudent(); on each function that handle the view.
Is there possible ways to do that?
In the application/core/ create MY_Controller.php
<?php
class MY_Controller extends CI_Controller {
public function __construct() {
parent::__construct();
$this->load->model('m_data');
$this->data['count_student'] = $this->m_data->allStudent();
}
}
Controller use $this->data
class Students extends MY_Controller {
public function __construct() {
parent::__construct();
}
public function index() {
$this->data['content'] = 'view-students';
$this->load->view('frontend/header', $this->data);
}
public function showDetails() {
$this->data['content'] = 'view-detail-students';
$this->load->view('frontend/header', $this->data);
}
}
Now that you have extended the controller you shoudld be able to just go like
<?php echo $count_student;?>
On the view
I noticed that you can access variables in views without passing them if you declare them in the controller with $this->. Probably because they default to public visibility.
public function __construct() {
parent::__construct();
// $data['count_student'] = $this->m_data->allStudent(); // count all students
//
$this->count_all_the_students = $this->m_data->allStudents();
}
public function index() {
$data['content'] = 'view-students';
$this->load->view('frontend/header' , $data);
}
And then in the view you can use $this->count_all_the_students without putting it in the $data array.
<?php defined('BASEPATH') OR exit('No direct script access allowed'); ?>
<?php
echo 'I have misled ' . $this->count_all_the_students . ' students with my MVC breaking suggestions.';
If you are using the same variable in every controller function then you have to declare it as follows
class Example extends CI_Controller{
protected $data = array();
public function __construct() {
parent::__construct();
$this->data['count_student'] = $this->m_data->allStudent();
}
public function index() {
$this->data['content'] = 'view-students'; //variables are same
$this->load->view('frontend/header' , $this->data);
}
public function showDetails() {
$this->data['content'] = 'view-detail-students'; //variables are same
$this->load->view('frontend/header' , $this->data);
}
}
This applies only if you have common variables for all views in this controller.
If you are using different variables then use the following code.
class Example extends CI_Controller{
protected $count_student= "";
public function __construct() {
parent::__construct();
$this->count_student = $this->m_data->allStudent();
}
public function index() {
$data['content'] = 'view-students'; //Variable is different
$data['count_student'] = $this->count_students;
$this->load->view('frontend/header' , $data);
}
public function showDetails() {
$data['details'] = 'view-detail-students'; // Variable is different
$data['count_student'] = $this->count_students;
$this->load->view('frontend/header' , $data);
}
}
I have a simple code in CI Model for Login BUT it always return 0.
$this->db->select('*');
$this->db->from('cms_users');
$this->db->where('username', "admin");
$this->db->where('password', "admin01");
$query = $this->db->get();
echo $query->num_rows();exit;
It always print 0.
When i try echo $this->db->get_compiled_select();exit; and run in phpmyadmin it return one value.
I would think because you are echoing instead of return
And you have exit on there as well I would not use exit;.
Model: User_model.php
<?php
class User_model extends CI_Model {
public function count() {
$this->db->where('username', "admin");
$this->db->where('password', "admin01");
$query = $this->db->get($this->db->dbprefix . 'cms_users');
return $query->num_rows();
}
}
Controller: Weclome.php
<?php
class Welcome extends CI_Controller {
public function __construct() {
parent::__construct();
$this->load->model('user_model');
}
public function index() {
$data['user_total'] = $this->user_model->count();
$this->load->view('welcome_message', $data);
}
}
I'm a newbe in codeigniter.
something is going wrong with I think the model.
this is the controler:
<?php
class Fuel extends CI_Controller {
public function __construct()
{
parent::__construct();
$this->load->helper('html');
$this->load->library('table');
}
public function image() {
$data['title'] = 'test';
$data['main_content'] = 'imagetest';
$this->load->view("template", $data);
}
public function overview() {
$this->load->model('Get_DB');
$this->Get_DB->overview() ;
$data['title'] = 'overview';
$data['main_content'] = 'overview';
$this->load->view("template", $data);
}
when I load the image function, it works just fine, but the function overview is the problem.
this is my model:
<?php
class Get_DB extends CI_Model
{
function __construct()
{
// Call the Model constructor
parent::__construct();
}
public function overzicht() {
$query = $this->db->query("SELECT * FROM invoer "
. "ORDER BY datum DESC");
$gen_query = $this->table->generate($query);
return $gen_query;
}
}
and this is my view:
<?php
echo $gen_query;
and if you want to know: my template is this:
<?php
$this->load->view('templates/header');
$this->load->view($main_content);
$this->load->view('templates/footer');
now when I open my view I get this message:
A PHP Error was encountered
Severity: Notice Message: Undefined variable: gen_query Filename:
views/overzicht.php Line Number: 3
in the model you see that I have made a var $gen_query
so why is that undifined?
regards,
Ralph
Try:
public function overview() {
$this->load->model('Get_DB');
$data = array();
$data['gen_query'] = $this->Get_DB->overzicht() ; #corrected model function and save the result in `gen_query`
$data['title'] = 'overview';
$data['main_content'] = 'overview';
$this->load->view("template", $data);
}
In Controler:
public function overview() {
$this->load->model('Get_DB');
$result = $this->Get_DB->overview() ;
$data['title'] = 'overview';
$data['main_content'] = 'overview';
$data['re'] = $result;
$this->load->view("template", $data);
}
And In view page you can retrive the result
like
foreach($re->result() as $row)
{
//You can get each row data here $row->your_field_names
}
I practicing CI and loop through all records in a view and produces each link as below:
sitename.com/products/2
where 2 is id of certain product, I want to click on the link and get this product information in product page, how can I create a model to retrieve specific record?
Model:
class Db_model extends CI_Model {
public function __construct()
{
$this->load->database();
}
public function getProduct($id) {
$query = $this->db->get_where('tbl_product', array('id' => $id));
return $query->result();
}
}
Controller:
class Products extends CI_Controller {
public function __construct()
{
parent::__construct();
$this->load->model('db_model');
}
public function index()
{
$data['rows'] = $this->db_model->getProduct($id);
$this->load->view('product', $data);
}
}
Thanks for help.
Your index function doesn't take $id as a parameter, So you need to modify your index function, Use the following index function, which I've edited.
public function index($id)
{
$data['rows'] = $this->db_model->getProduct($id);
$this->load->view('product', $data);
}
I'm trying to run two queries in two functions in a model on Codeigniter. The 2nd query runs based on the result of the first by passing the variable between the functions.
The first query gets the row from the 'photos' database based on the URL the user goes to. The second query is run against the 'users' database and the row is selected based on the 'userid' field from the row of the first query.
I need to be able to get all data from the rows of both queries. I get a 404 error at the moment, any ideas as how to get it working?
Code is as follows:
Model:
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Viewphoto_model extends CI_Model {
public function get_photo($id)
{
$db_photos = $this->load->database('photos', TRUE);
$db_photos->select('*');
$db_photos->select("DATE_FORMAT(uploaddate, '%d/%m/%y') as uploaddate_formatted", FALSE);
$db_photos->from('photos');
$db_photos->where('approved', '1');
$db_photos->where('id', $id);
$result = $db_photos->get()->row();
$userid = $this->get_user($result->userid);
}
public function get_user($userid)
{
$db_users = $this->load->database('users', TRUE);
$db_users->select('firstname, lastname, email');
$db_users->from('useraccounts');
$db_users->where('id', $userid);
$query = $db_users->get();
return $query->row();
}
}
Controller:
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Viewphoto extends CI_Controller {
public function __construct()
{
parent::__construct();
$this->load->model('viewphoto_model');
}
public function view($id)
{
$data['photo'] = $this->viewphoto_model->get_photo($id);
if (empty($data['photo']))
{
show_404();
}
$data['user'] = $this->viewphoto_model->get_user($userid);
if (empty($data['user']))
{
show_404();
}
$data['title'] = $data['photo']->title.' by '.$data['photo']->username;
$data['meta_description'] = $data['photo']->description;
$data['directory'] = 'sub';
$this->load->view('templates/header', $data);
$this->load->view('viewphoto/viewphoto', $data);
$this->load->view('templates/footer', $data);
}
}
You seem to have a slight logic issue. Your get_photo() function should return the photo object, which your controller can then use in the call to get_user()...
public function get_photo($id)
{
$db_photos = $this->load->database('photos', TRUE);
$db_photos->select('*');
$db_photos->select("DATE_FORMAT(uploaddate, '%d/%m/%y') as uploaddate_formatted", FALSE);
$db_photos->from('photos');
$db_photos->where('approved', '1');
$db_photos->where('id', $id);
return $db_photos->get()->row();
}
Then in your controller....
public function view($id)
{
$data['photo'] = $this->viewphoto_model->get_photo($id);
if (empty($data['photo']))
{
show_404();
}
// Pass the photo's userid here
$data['user'] = $this->viewphoto_model->get_user($data['photo']->userid);
if (empty($data['user']))
{
show_404();
}
// ...
}