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Cointroller function inside control loop in template
15 December 2010 at 10:03pm Last edited: 15 December 2010 10:04pm
Got some problem and cannot find solution on forum and google with SS.
In Page Controller I've got function like:
function checkSomhing()
{
return true;
}
and I would like to use it in template:<% if checkSomhing %>
test
<% end_if %>All works well. But there is case that I need to use it inside another 'control' eg. displaing menu:
<% control MainMenu %>
...
<% if checkSomhing %>
test
<% end_if %>
<% end_control %>And 'checkSomhing' doesn't work. I think I know why, because control loop is looking for 'checkSomhing' in $MainMenu object. It's clear. But I can not find solution to get it work. Need something like:
<% if this.checkSomhing %>
or some other solution to call controller function inside control loop.Than you in advance.
Pawel -
Re: Cointroller function inside control loop in template
16 December 2010 at 3:18am
OK, I found this solution - http://silverstripe.org/template-questions/show/11730?start=0
It's not perfect but it's ok.Pawel
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Re: Cointroller function inside control loop in template
16 December 2010 at 8:46am
Hi, just to check, the answer is....
<% if Top.checkSomhing %>
...right?
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Re: Cointroller function inside control loop in template
16 December 2010 at 8:10pm
Right.
Thank you.
Pawel -
Re: Cointroller function inside control loop in template
16 January 2011 at 8:13am
Can you tell me what you did to make this work with <% Top.dosomething %>??? I read the whole post you refered to and there is A no solution to the problem and B nothing that explains "Top".
For me it gives Parse error: syntax error, unexpected '}' in /bla/bla
I've tried putting my function in Controller and Model now....
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Re: Cointroller function inside control loop in template
17 January 2011 at 12:51am
http://doc.silverstripe.org/built-in-page-controls?s=page%2520controls
Top refers to the top-most controller In most cases that will be your page. From whithin a control that refers to another object, you only have access to the properties/methods of that particular object. Top will give you access to the Page itself. Example (some page template)
$Name <-- page name
<% control SomeObject %>
$Name <-- SomeObject name
$Top.Name <-- page name
<% end_control %>Mind: in a nested control situation, Top still refers to the top-most controller...
And it's <% if Top.dosomething %>
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Re: Cointroller function inside control loop in template
17 January 2011 at 1:05am Last edited: 17 January 2011 1:07am
Hi marimiz,
ok I understood now... I hope... so
<% control SomeObject %>
<% control SomeOtherObject %>
$Top.Name <-- would still be Page name and not SomeObject name?
<% end_control %>
<% end_control %>Ok, I put my function now in my SomeObject class and it get's called. But now I want to pass a value from the template to the function. How would I do that?
<% control SomeObject %>
<% if checkForSomething(Top.Name) %> <-- this doesn't seem to work
yeah checked
<% end_if %>
<% end_control %>If I just return the submited value to the function and print it in the template it prints "Top.Name" and not the value of the property. Isn't this possible? Using $Top.Name breaks it completely and gibes PHP errors
thx spanky
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Re: Cointroller function inside control loop in template
17 January 2011 at 1:20am Last edited: 17 January 2011 1:33am
I don't think you can use variables as function params in a control structure like that. So if you just want to check for the existence of a pagename, you 'd do this:
<% if Top.Name %>
If you 'd want to do some extra checks on the page name, you'd do this:
function Name() {
// do some checks
return $CheckedName;
}<% if Top.Name %> <-- remains the same...
[edit] within a <% Top.Name %> control you leave out the $ sign, everywhere else in the template use $Top.Name
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