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Template Questions

Custom text functions for content


3 Posts   1752 Views


31 May 2010 at 3:33am (Last edited: 31 May 2010 3:33am), Community Member, 24 Posts

Hi there,

I just wan't to know if it's possible to extend Silverstripe in one way:

In every Silverstripe installation you've the opporturnity to change the text e.g. in this way:



$Content.LimitWordCountXML(10, read more)

Now, I need a custom function like


I know this was possible if I will hack "sapphire/core/model/fieldtypes/Text.php" but this is not the way i wan't to go.
I've tried to "extend" with the Object::add_extension() method but in this case I will lose "$this->value" in my custom class because it has to extend from "Extension" and can not extend from the "Text"-Class.

Is there a way to do this without hacking the Silverstripe core?


31 May 2010 at 9:05am Forum Moderator, 5511 Posts

You should be able to use the Extension class. You would then refer to your "$this->value" as you would in a subclass as $this->owner->value. $this->owner gives you the class the extension has been applied to.

The other option is to make a FirstSentence function in your Page.php and instead of using $Content use $FirstSentence in the template.

function FirstSentence() {
$content = $this->Content;

// do whatever you want
$text = ....;

return $text;


31 May 2010 at 10:47am Community Member, 24 Posts

Thanks, Willr that's it.

I know your second option but I need in my case the "extension". :-)