passing variables to model in view

[shadd]

I have this controller:

class papersController extends Controller
{
	//public $paper;
	public function index($StudylevelId='',$SubjectId='',$PaperId='',$name='')
	{
		echo 'StudylevelId is'. $StudylevelId;
		require MODEL.'paper_view.php';
		//$Paper new PaperView($StudylevelId,$SubjectId,$PaperId);
		// Retrieve data from the model
//$data = $this->model->getData();// Pass the data to the view
//$this->view->render('route_view', ['data' => $data]);
		$this->view('papers\index',new PaperView($StudylevelId,$SubjectId,$PaperId));
		$this->view->render();
		
	}

i need to pass the three variables $StudylevelId,$SubjectId,$PaperId in index function() to the paperview model

// Handles paper details
class PaperView
{
	// Public variables to be used in fsa template
	public $mPaper;
	public $mPaperId;
	// Private stuff
	private $_mStudylevelId;
	private $_mSubjectId;
	private $_mPaperId;
	// Class constructor
	public function __construct($StudylevelId,$SubjectId,$PaperId)
	{
		// Variable initialization
		// Get StudylevelId from query string casting it to int $paginate = new Pag(35);
		if ($StudylevelId<>'')
			$this->_mStudylevelId = (int)$StudylevelId;
		// Get SubjectId from query string casting it to int
		if ($SubjectId<>'')
		$this->_mSubjectId = (int)$SubjectId;

		if ($PaperId<>'')//$_GET['ProductId']))
			$this->mPaperId = (int)$PaperId;
		//$_GET['ProductId'];
		else
			trigger_error('PaperId not set');
	}

how can i access the data from paperview model in the actual view below.the echo statement works fine but the variables cannot be accessed in the view page for further use

	<section class="bg" >
			<?php //require MODEL.'paper_view.php';
	
				/*$className = str_replace(' ', '',
				ucfirst(str_replace('_', ' ',
				substr(basename(__FILE__), 0, strrpos(basename(__FILE__), '.')))));*/
	
				// Create presentation object
				//$Papersdetail=new PaperView($StudylevelId,$SubjectId,$PaperId);
				//$Papersdetail = new $className();
			?>
								   
    <!-- Quiz Box -->
    <div class="quiz">
        <header>
            <div class="title"><?=$data->mPaperId?><h2> PAPER 1</h2></div>

i can't acess $StudylevelId,$SubjectId,$PaperId in the above code. help out

[requinix]

You can't access $StudylevelId and such because those variables do not exist. You should use what's in $data.

You can't access $data->_mStudylevelId because it's private. Either make the variables public, like mPaperId is, or find some other way to make those values available outside of the class.

[shadd]

1 hour ago, requinix said:

You can't access $StudylevelId and such because those variables do not exist. You should use what's in $data.

You can't access $data->_mStudylevelId because it's private. Either make the variables public, like mPaperId is, or find some other way to make those values available outside of the class.

I can actually see this, when i render the view page.It is there in the paperscontroller as seen with the echo statement there. it does display at the top of the view page.My issue is that i cannot access this inside the paperview class that needs to use it.

[shadd]

1 minute ago, shadd said:

I can actually see this, when i render the view page.It is there in the paperscontroller as seen with the echo statement there. it does display at the top of the view page.My issue is that i cannot access this inside the paperview class that needs to use it. even when i made the mpaperId public,i couldn't displat it in the view template

 

[requinix]

4 hours ago, shadd said:

even when i made the mpaperId public,i couldn't displat it in the view template

Post the code you tried, both for the class and for the view.

[shadd]

3 hours ago, requinix said:

Post the code you tried, both for the class and for the view.

// Handles paper details
class PaperView
{
	// Public variables to be used in fsa template
	public $mPaper;
	public $mPaperId;
	// Private stuff
	private $_mStudylevelId;
	private $_mSubjectId;
	private $_mPaperId;
	// Class constructor
	public function __construct($StudylevelId,$SubjectId,$PaperId)
	{
		// Variable initialization
		// Get StudylevelId from query string casting it to int $paginate = new Pag(35);
		if ($StudylevelId<>'')
			$this->_mStudylevelId = (int)$StudylevelId;
		// Get SubjectId from query string casting it to int
		if ($SubjectId<>'')
		$this->_mSubjectId = (int)$SubjectId;

		if ($PaperId<>'')//$_GET['ProductId']))
			$this->mPaperId = (int)$PaperId;
		//$_GET['ProductId'];
		else
			trigger_error('PaperId not set');
	}
}

that is the class i used to try to capture the mpaperid variable from the papercontroller class below

class papersController extends Controller
{
	//public $paper;
	public function index($StudylevelId='',$SubjectId='',$PaperId='',$name='')
	{
		echo 'PaperId is'. $PaperId;//check wether variables are there
		require MODEL.'paper_view.php';
		//$Paper new PaperView($StudylevelId,$SubjectId,$PaperId);
		// Retrieve data from the model
		$this->view('papers\index',new PaperView($StudylevelId,$SubjectId,$PaperId));
		$this->view->render();
		
	}

the view is here

	<section class="bg" >
			<?php //require MODEL.'paper_view.php';
	
				/*$className = str_replace(' ', '',
				ucfirst(str_replace('_', ' ',
				substr(basename(__FILE__), 0, strrpos(basename(__FILE__), '.')))));*/
	
				// Create presentation object
				//$Papersdetail=new PaperView($StudylevelId,$SubjectId,$PaperId);
				//$Papersdetail = new $className();
			?>
								   
    <!-- Quiz Box -->
    <div class="quiz_box">
        <header>
            <div class="title"><?=mPaperId?></div>
          </header>
      </div>

iam not getting the variable displayed above.how can i do that

[requinix]

If you're going to work with PHP then I suggest you learn the fundamentals of PHP. That's going to be really important for you to be able to write code that actually works.

When you have a grasp on it, spend some time learning about how your MVC framework works. About how views work, and about this $data variable it apparently sets up in the view, and about how to use view classes to pass data.

I say that because I can see (1) you did not make anything public, and (2) changing $data->mPaperId to just mPaperId actually made your problem worse. What you should (as far as I can see) be doing is leaving mPaper and mPaperId alone, make your mStudylevelId and friends public (and please rename them to not have an underscore), and then using $data in the view to reference those properties. But that could be hard to understand if you don't have a basic knowledge of PHP or of the framework you need to use.

[shadd]

1 hour ago, requinix said:

If you're going to work with PHP then I suggest you learn the fundamentals of PHP. That's going to be really important for you to be able to write code that actually works.

When you have a grasp on it, spend some time learning about how your MVC framework works. About how views work, and about this $data variable it apparently sets up in the view, and about how to use view classes to pass data.

I say that because I can see (1) you did not make anything public, and (2) changing $data->mPaperId to just mPaperId actually made your problem worse. What you should (as far as I can see) be doing is leaving mPaper and mPaperId alone, make your mStudylevelId and friends public (and please rename them to not have an underscore), and then using $data in the view to reference those properties. But that could be hard to understand if you don't have a basic knowledge of PHP or of the framework you need to use.

Iam very sorry Sir. Iam writing an MVC FROM SCRATCH.

When iam in the paper controller class,the variables $StudylevelId,$SubjectId,$PaperId, are available with in that scope.

how can I avail them to the model class Paperview

class PaperView
{
    // Public variables to be used in fsa template
    public $mPaper;
    public $mPaperId;
    // Private stuff
    private $_mStudylevelId;
    private $_mSubjectId;
    private $_mPaperId;
    // Class constructor
    public function __construct($StudylevelId,$SubjectId,$PaperId)
    {
        // Variable initialization
        // Get StudylevelId
        if ($StudylevelId<>'')
            $this->_mStudylevelId = (int)$StudylevelId;
        // Get SubjectId from query string casting it to int
        if ($SubjectId<>'')
        $this->_mSubjectId = (int)$SubjectId;

        if ($PaperId<>'')//$_GET['ProductId']))
            $this->mPaperId = (int)$PaperId;
        //$_GET['ProductId'];
        else
            trigger_error('PaperId not set');
    }

}

which is called in the view file below:

Yes i have made them public in the papercontroller class,but now how do i access

them here where they are required

    <section class="bg" >
            <?php require MODEL.'paper_view.php';
    
                
                // Create presentation object
                $Papersdetail=new PaperView($StudylevelId,$SubjectId,$PaperId);
            ?>
                                   
    <!-- Quiz Box -->
    <div class="quiz_box">
        <header>
            <div class="title"><?=$Papersdetail->mPaperId?><h2></header>

i hope i have tried explaining better

Edited June 18 by shadd
more clarity

[shadd]

7 hours ago, shadd said:

Iam very sorry Sir. Iam writing an MVC FROM SCRATCH.

When iam in the paper controller class,the variables $StudylevelId,$SubjectId,$PaperId, are available with in that scope.

how can I avail them to the model class Paperview

class PaperView
{
    // Public variables to be used in fsa template
    public $mPaper;
    public $mPaperId;
    // Private stuff
    private $_mStudylevelId;
    private $_mSubjectId;
    private $_mPaperId;
    // Class constructor
    public function __construct($StudylevelId,$SubjectId,$PaperId)
    {
        // Variable initialization
        // Get StudylevelId
        if ($StudylevelId<>'')
            $this->_mStudylevelId = (int)$StudylevelId;
        // Get SubjectId from query string casting it to int
        if ($SubjectId<>'')
        $this->_mSubjectId = (int)$SubjectId;

        if ($PaperId<>'')//$_GET['ProductId']))
            $this->mPaperId = (int)$PaperId;
        //$_GET['ProductId'];
        else
            trigger_error('PaperId not set');
    }

}

which is called in the view file below:

Yes i have made them public in the papercontroller class,but now how do i access

them here where they are required

    <section class="bg" >
            <?php require MODEL.'paper_view.php';
    
                
                // Create presentation object
                $Papersdetail=new PaperView($StudylevelId,$SubjectId,$PaperId);
            ?>
                                   
    <!-- Quiz Box -->
    <div class="quiz_box">
        <header>
            <div class="title"><?=$Papersdetail->mPaperId?><h2></header>

i hope i have tried explaining better

Thanks Admin,i had to go back and re-read php and figured out how to get the data.

Edited June 18 by shadd
spelling