I am completely new in the codigniter i just started day befire Yesterday i am having a problem
Here is my snippet of my controller code
$allcalldetails_array = array(
'id' => $row->id,
'customer_id' => $row->customer_id
);
$this->session->set_userdata('logged',$allcalldetails_array);
I want to iterate the $allcalldetails_array in my views please tell me the way to do this
i tried iterating logged but could not get anything .
If i am printing the array in my views like print_r($allcalldetails_array); but this is also disappointing me .Please help me to get back on track .
Thanks
Its not necessary for session variables to be parsed via controller, access it on view directly:
$logged = $this->session->userdata('logged');
print_r($logged);
If you would like data to be send to your view as variables, you should add the corresponding data to your view load.
Controller:
$logged = $this->session->userdata('logged');
$this->load->view('viewfile', $logged);
View
print "logged id:".$id;
best regards.
Jonas
To get the data from session your need to do the following:
// controller logic
$logged = $data['logged_for_view'] = $this->session->userdata('logged'); // since 'logged' is the name you set it to
// more controller logic
$this->load->view('view_name', $data);
// in view
var_dump($logged_for_view); // this is the key of the $data variable you assigned for the view
Regarding the CodeIgniter's documentation :
Data is passed from the controller to the view by way of an array or
an object in the second parameter of the view loading function.
Then you could use something like :
// Controller side
$data['allcalldetails_array'] = array(
'id' => $row->id,
'customer_id' => $row->customer_id
);
$this->load->view('your_view', $data);
// View side
print_r($allcalldetails_array);
// Loop through your array
foreach ($allcalldetails_array as $detail){
// Do something with your $detail.
}
Related
I need to load a view into a view within CodeIgniter, but cant seem to get it to work.
I have a loop. I need to place that loop within multiple views (same data different pages). So I have the loop by itself, as a view, to receive the array from the controller and display the data.
But the issue is the array is not available to the second view, its empty
The second view loads fine, but the array $due_check_data is empty
SO, I've tried many things, but according to the docs I can do something like this:
Controller:
// gather data for view
$view_data = array(
'loop' => $this->load->view('checks/include/due_checks_table', $due_check_data, TRUE),
'check_cats' => $this->check_model->get_check_cats(),
'page_title' => 'Due Checks & Tests'
);
$this->load->view('checks/due_checks',$view_data);
But the array variable $due_check_data is empty
I'm just getting this error, saying the variable is empty?
Message: Undefined variable: due_check_data
You are passing the $view_data array to your view. Then, in your view, you can access only the variables contained in $view_data:
$loop
$check_cats
$page_title
There is no variable due_check_data in the view.
EDIT
The first view is contained in the variable $loop, so you can just print it in the second view (checks/due_checks):
echo $loop;
If you really want to have the $due_check_data array in the second view, why don't you simply pass it?
$view_data = array(
'loop' => $this->load->view('checks/include/due_checks_table', $due_check_data, TRUE),
'check_cats' => $this->check_model->get_check_cats(),
'page_title' => 'Due Checks & Tests',
'due_check_data' => $due_check_data
);
$this->load->view('checks/due_checks',$view_data);
Controller seems has no error. Check out some notices yourself:
<?=$due_check_data?>
This only available in PHP >= 5.4
<? echo $due_check_data; ?>
This only available when you enable short open tag in php.ini file but not recommended
You are missing <?php. Should be something like this
<?php echo $due_check_data; ?>
OK, i managed to solve this by declaring the variables globally, so they are available to all views.
// gather data for view
$view_data = array(
'due_check_data' => $combined_checks,
'check_cats' => $this->check_model->get_check_cats(),
'page_title' => 'Due Checks & Tests'
);
$this->load->vars($view_data);
$this->load->view('checks/due_checks');
My question is, what method/technique/process is adopted to send data from controller to view/model and view to controller.
i want to understand the logic behind data flow in codeigniter.
Every type of help will be appreciated.
$this->load->view('sap_tab',$result);
$data = $this->input->post();
get data from controller to view
$data = array(
'title' => 'Client',
'bookings' => $this->db->get('bookings')->result_array()
);
$this->load->view('sap_tab',$data);
Now you can access $data in sap_tab.php as $title & $bookings
view to controller
There are two ways to do it
By URL parameter
Session
If you have data that you want to be bound to a view each time that view is
rendered,a view composer can help you ...
This task can be easily archived in laravel, but I am now using Codeigniter, there is no view composers things. What I have done now is, I create a custom view method, just like below
public function view($page,$params=null,$return=false)
{
// Every time I invoke this method, $nav will be passed to 'navigation' view.
$nav=[
'user' =>'Adam'
];
//return the views as view_partials instead of displayed
$view_partials = array(
'navigation' => $this->obj->load->view('partials/nav',$nav,true),
'page_content' => $this->obj->load->view($page,$params,true)
);
// load layout with the view_partials which contain bound data.
$this->obj->load->view($this->_layout,$view_partials,$return);
}
This method returns views as 'string', it can not works with json or complex page.... Thank you.
Ok, lets make this simple
$this->load->view(path_to_htmlpage, $bound_data, FALSE);
or
$this->load->view(path_to_htmlpage, $bound_data); // by default 3rd param is FALSE
this will render html page
If you want to get html page as a string, set 3rd parameter to TRUE
$html_string = $this->load->view(path_to_htmlpage, $bound_data, TRUE);
check https://ellislab.com/codeigniter/user-guide/general/views.html
public function view($page,$params=null,$return=false)
{
$nav['user']='adam';
$data['navigation']= $this->load->view("partials/nav",$nav,true);
$data['page_content'] = $this->load->view($page,$params,true)
$this->load->view('your_page',$data);
}
in yor view page ie.your_page you can use variables $navigation and $page_content to display the pages
My problem: I can't access session data in the view, which I tried to save in the controller before rendering the view.
In my opinion there's an error when storing the session data. (It's necessary for me to modify the session data after creating it, not only in the single action.)
ProcessController.php
public function actionNew() {
$formhash = md5(time());
$hashList = array();
$hashList[$formhash]['processingNumber'] = '';
//fill with empty model
$hashList[$formhash]['model'] = $this->loadModel();
//store hashList in session
Yii::app()->session['hashList'] = $hashList;
$this->render('/process', array('hashValue => $formHash));
}
Now in the view I need the data from the session to show them to the user. But when dumping the hashList it just dumps "null" (Maybe because the saving in the controller didn't went well).
process.php
<?php
$form = this->beginWidget('CActiveForm', array(
'id' => 'process_form',
//several other things...
));
//Output: null
CVarDumper::dump(Yii::app()->session['hashList'],10,true);
?>
I tried to use $_SESSION instead of Yii::app()->session, which gives me access to the data in the view. But when handling other actions in the Controller the $_SESSION variable is undefined.
Any suggestions?
Thank you.
Long answer is:
Regarding to this documents:
$session=new CHttpSession;
$session->open();
$value1=$session['name1']; // get session variable 'name1'
$value2=$session['name2']; // get session variable 'name2'
foreach($session as $name=>$value) // traverse all session variables
$session['name3']=$value3; // set session variable 'name3'
You can use as well:
Yii::app()->session->set('hashList', $hashList);
Yii::app()->session->get('hashList');
And set it again.
Beside this session thing, why do not you use this:
$this->render('/process', array('hashValue => $formHash, 'hashList' => $hashList));
So you do not need to save it in a session if you can reach it directly into the view.
According to the documentation your code should work. An alternative might be to use the following, but it does the same:
Yii::app()->session->add('hashList', $hashList); // set the value
$hashList = Yii::app()->session->get('hashList'); // get the value
I expect the problem either a debugging problem, meaning you have observed cached or otherwise outdated data or a problem in parts of your code that you have not shown.
I already created as session named "verified" as shown below (in my login controller):
foreach($result as $row)
{
$sess_array = array(
'id' => $row->memberid, //Session field: id.
'username' => $row->member_userunique //Session field: username.
);
// Create a session with a name verified, with the content from the array above.
$this->session->set_userdata('verified', $sess_array);
}
Now, when a user open a page called book (with a controller named book) i want to add one more additional variable called "book_id" to my "verified" session.
This is what i have done
function index()
{
//Add a new varible called book_id
$this->session->set_userdata('book_id', $titleID);
}
When i tried to retrieve the 'book_id' using the following method:
$session_data = $this->session->userdata('verified');
$article_id = $session_data['book_id'];
$user_id = $session_data['id'];
It only able to retrieve the 'id' however the 'book_id' is not defined. But if do a var_dump() on $this->session->all_userdata() i can see that the 'book_id' session variable has been successfully appended.
After reading the CI documentation about session, i realized that the code above will not work as i have not tell it to which session should i add the variable to.
Can anyone point me to the right direction?
You do as follows in your index() method:
$session_data = $this->session->userdata('verified');
$session_data['book_id'] = "something";
$this->session->set_userdata("verified", $session_data);
This way you retrieve the contents of the variable (i.e. the array that you persisted earlier), you add another key to the array (book_id), and then store it again. Now you will be able to do, as I assume you want to:
$sess = $this->session->userdata("verified");
echo $sess['book_id'];