Is it possible to control what gets output in the template a custom fieldtype?

For example im working on a eventbrite plugin and it saves the id in the database but I want the field in the template to return a fully formatted register button.

Right now im doing this with a craft variable that i'm passing the id and returns the html for the button into but feels like there might be a simpler way?

Related to that right now i have to add | raw to the variable output

so its

{{ craft.eventBrite.registerButton(entry.eventbriteId) | raw }}

is there a way to prevent the escaping of whats being returned without the extra filter in the template?

  • I'm confused about the first part of your question... You want your field to automatically determine if an entry has already been loaded (ie: dynamic entry URLs)? It looks to me like you're already doing it right... How else would your registerButton know which eventbriteId it was working with?
    – Lindsey D
    Aug 13, 2014 at 17:00
  • I guess i mean instead of making the customfield just be the id that the logic for the button could be in the field and output would come just by accessing the custom field... more like what dukt is doing wiht the video plugin for example.. dukt.net/craft/videos/docs/video-fields Aug 13, 2014 at 18:55
  • 1
    ahh looks like its the prepValue function in the fieldtype is what im looking for, lets you change the value saved in the database into whatever you want like an object with sub values Aug 13, 2014 at 18:59
  • 1
    I came across this question while searching for Event Brite plugins for CraftCMS... Will your Event Brite plugin be available for commercial or public use? Oct 15, 2014 at 7:54

2 Answers 2


Run your HTML string through getRaw before sending it back to the template...

return TemplateHelper::getRaw($output);

This will basically "pre-raw" your HTML string.

  • nice! that takes care of that one. any thoughts on returning the html directly throught the field variable? is that even possible? Aug 13, 2014 at 16:43

So I found the answer i was looking for.

It looks like if you add a prepValue function to your fieldtypes class it can perform any action you want on the value from your custom field before returning it to the template

Looks something like this

class PLUGINNAME_FIELDNAMEFieldType extends BaseFieldType
    public function getName()
        return Craft::t('My Field\'s Name');

    public function prepValue($value)
      // do stuff with value here like create a model, or just some conversion
      $newValue = $value." <strong>it works!</strong>";

      // newValue is whats returned to the template when you access via entry.customFieldName
      return TemplateHelper::getRaw($newValue);

      // Note: TemplateHelper::getRaw isnt required it just included cause the newValue includes html that i want to render on the page, default behavior is to escape all html



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