Hello I am trying to integrate recaptcha spam protection into a custom form, where exactly do I implement the below code?

https://github.com/silverstripe/silverstripe-spamprotection

// your existing form code
$form = new Form( .. );
$form->enableSpamProtection();

Below is my form:
http://iforce.co.nz/i/4az53any.0ux.jpg

Any help with this would be much appreciated.

figured it out, pretty simple :o

A wild Soulrol|l appeared, but he forgot to use answer! It's not very effective...

The answer is to instead of return new Form(...),

return Form::create(...)->enableSpamProtection();

As a rule of thumb, always ::create() instead of new where the class extends from Object - there are many subtle advantages (chaining as eg. here, dependency injection, etc).

Works best in combination with something like: https://github.com/chillu/silverstripe-recaptcha
Then suddenly the map is biased to the CT's.

I've used the mollom adapter in the past too, and that's pretty good - it's a bit more fiddly to set up for much more than comment/contact based forms.

Wouldn't it be great if that 'correct way' was properly documented in the plugin itself with some real use examples. I ended up going with the Honeypot version, I can post up the completed form if you like, cheers Pyro.

Yip always good to post code examples if you solve something on the forums as this helps others :D

Just make sure that 1) you don't post any sensitive client code ;) and 2) if the question has been solved that you prefix the original post with [solved]

Yeah Soulrolll, it's an issue with things falling more out of date than anything. ClassName::create() was introduced in 3.0 to enable functionality with Injector (dependency injection class/sub-project). spamprotection & most of it's adaptors/providers are from the 2.x days.

Just to reiterate - there's nothing particularly 'wrong' about using "new ClassName" - I just like to actively encourage the use of ::create() in an effort to combat all the old (on module) docs, old tutorials and things floating around the internet, etc.
::create also provides some more syntactical sugar as such with chaining, as mentioned before. Sometimes it can make (more modern) tutorials easier to follow :)

<messsage here about open source and pull requests welcome, etc> ;)

This is what I ended up going with, not sure if its 100% secure but it works.

http://iforce.co.nz/i/ferurvvk.xsx.jpg

I cannot remember if the default output value of the textfield is HTML safe (I think it might be though - best check).
If you find that it's not, there is the Convert helper class for that.

http://api.silverstripe.org/3.1/class-Convert.html

Other than that, seems pretty standard (apart from some redundant looking calls, but that's mostly by the by).