21288 Posts in 5733 Topics by 2602 members
General Questions
SilverStripe Forums » General Questions » Getting static variables from DataObjects or Controllers
General questions about getting started with SilverStripe that don't fit in any of the categories above.
Moderators: martimiz, Howard, Sean, Ryan M., biapar, Willr, Ingo, swaiba, simon_w
|
Page:
1
|
Go to End | |
| Author | Topic: | 1190 Views |
-
Getting static variables from DataObjects or Controllers
26 June 2009 at 5:53am
Is there a way to get the value of a $protected variable on an object?
In the case of ModelAdmin, it has a protected $currentRecord so when I am in the ModelAdmin in the CMS I expected to be able to:
$record = Controller::curr()->currentRecord;
However that does not work. If I go into CMS/ModelAdmin.php and add:
function Record() {
return $this->currentRecord;
}and then do:
$record = Controller::curr()->Record();
that works but I don't want to modify a core file like that if I don't have to.
-
Re: Getting static variables from DataObjects or Controllers
26 June 2009 at 5:57am
Well you just said it yourself, it is protected, so no, there is no way that you can access it from outside the scope of the object itself, that is what it's used for...
Private = Even inherited classes don't see it
Protected = Only inherited classes can see that property
Public = Anyone using this class can see the public membersAnything else i can do for you?
-
Re: Getting static variables from DataObjects or Controllers
26 June 2009 at 7:05am
Isn't "Controller::curr()-> " asking the class itself? If that is so then I should be able to access the protected var since it is the current class?
-
Re: Getting static variables from DataObjects or Controllers
26 June 2009 at 7:12am
No Controller::Curr() is calling something called a Static function/property. Static elements cannot be anything else than public or they would be useless. The method you defined before about modifying the source file is pretty much the only workaround if ->currentRecord is private. If ->currentRecord is protected, then you can define that property/function inside your own class such as :
class MyModelAdmin extends ModelAdmin {
function Record() {
return $this->currentRecord;
}}
But note that this will not work if you are targeting a private property!
-
Re: Getting static variables from DataObjects or Controllers
26 June 2009 at 7:40am
It seems that even though the variable is protected using
function Record() {
return $this->currentRecord;
}Doesn't work because $this isn't the controller.
The only way I can get it to work is to modify core.
| 1190 Views | ||
|
Page:
1
|
Go to Top |
