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+--- Thread: Setting a global variable in a controller? (/showthread.php?tid=10647)
Setting a global variable in a controller? - El Forum - 08-07-2008
[eluser]Matrices[/eluser]
Hello fellow CI-ers!
I need to set a global variable within a controller that all the functions can access. The variable is $omit. The code is below. As you can see the $omit variable needs to be plugged into each function right now. This variable will be the same no matter what, so is there a way to set it globally, but only inside this specific controller?
Code:
<?php
class Admin extends Controller {
function Admin()
{
parent::Controller();
$this->load->scaffolding('categories');
}
function index()
{
$this->load->view('admin');
}
function categories()
{
// Give the view page a title
$title = "Categories";
// Query the table
$query = $this->db->get('categories');
// Get the table fields
$fields = $this->db->list_fields('categories');
$omit = array(
'ID',
);
while (list ($key, $val) = each ($fields)) {
if (in_array ($key, $omit)) unset ($fields[$key]);
}
// Place all the data into an array
$data = array(
'query' => $query,
'fields' => $fields,
'title' => $title,
);
$this->load->view('admin', $data);
}
function articles()
{
// Give the view page a title
$title = "Articles";
// Query the table
$query = $this->db->get('articles');
// Get the table fields
$fields = $this->db->list_fields('articles');
$omit = array(
'ID',
);
while (list ($key, $val) = each ($fields)) {
if (in_array ($key, $omit)) unset ($fields[$key]);
}
// Place all the data into an array
$data = array(
'query' => $query,
'fields' => $fields,
'title' =>$title
);
$this->load->view('admin', $data);
}
}
?>Setting a global variable in a controller? - El Forum - 08-07-2008
[eluser]usmc[/eluser]
Like any object you can set properties.
Code:
$this->some_property = "Hello World";Then access it from any method.
Setting a global variable in a controller? - El Forum - 08-07-2008
[eluser]Bramme[/eluser]
Yup. This is basic OO PHP... I suggest you read up on it a bit, it's definately worht it!
Setting a global variable in a controller? - El Forum - 08-07-2008
[eluser]Matrices[/eluser]
Ok I've replaced function Admin() with this code, and removed the $omit definitions from the individual functions:
Code:
function Admin()
{
parent::Controller();
// Setting the fields which the view mode will ignore
$this->omit = array(
'ID',
);
$this->load->scaffolding('articles');
}However I'm still receiving an error that omit is not defined.
Setting a global variable in a controller? - El Forum - 08-07-2008
[eluser]Matrices[/eluser]
I got it, thanks for the help. I realized that I still need to define $omit inside the functions using
Code:
$omit = $this->omit;I'm as green as sea glass, but I'm learnin'. Thanks for the help!
Setting a global variable in a controller? - El Forum - 08-07-2008
[eluser]Hannes Nevalainen[/eluser]
You can do this to:
Code:
//Constructor
function Admin(){
parent::Controller();
//Variables defined here will be passed to all your views!
$this->load->vars(array(
'ID'
));
}EDIT:
Corrected the comment ('views' instead of 'controllers')
Setting a global variable in a controller? - El Forum - 08-08-2008
[eluser]xwero[/eluser]
First of all if you want to add a class variable you should define it in the top of your class
Code:
class somename
{
var $omit;
}When you define the variable it's possible to add a default value like you do with normal values.
Matrices in your methods you can use $this->omit in place of the $omit variable name.
Hannes the load->vars method is meant to collect variables for the view files not as a substitute for class variables.
Setting a global variable in a controller? - El Forum - 08-08-2008
[eluser]Hannes Nevalainen[/eluser]
xwero > I know, but he sends it to the view in every controller so I don't think it's such an bad idea.
I wrote something wrong in my post, the comment in the code should say 'views' instead of 'controllers'
Setting a global variable in a controller? - El Forum - 08-08-2008
[eluser]srobet[/eluser]
[quote author="xwero" date="1218194148"]
When you define the variable it's possible to add a default value like you do with normal values.
Matrices in your methods you can use $this->omit in place of the $omit variable name.
Hannes the load->vars method is meant to collect variables for the view files not as a substitute for class variables.[/quote]
Yups, I agree with that
Setting a global variable in a controller? - El Forum - 08-08-2008
[eluser]xwero[/eluser]
Hannes i think you are looking at the wrong code
Code:
// Get the table fields
$fields = $this->db->list_fields('categories');
$omit = array(
'ID',
);
while (list ($key, $val) = each ($fields)) {
if (in_array ($key, $omit)) unset ($fields[$key]);
}