I want to extend the entity properties of OG-Membership to use it as a token in rules.

It works fine adding the property (for example the string 'test' as returned in the getter_callback is printed in a reaction rule (sending email)). But I could not find out, or how to debug/access, the other properties present in OG-Membership in the rules context. To put it differently:

How can I access the group id ($gid) of the OG-Membership in my getter callback?

This works well:

function mymodule_entity_property_info_alter(&$info){
  $properties = &$info['og_membership']['properties'];

  $properties['og_custom_property'] = array(
    'label' => t('My custom Label'),
    'type' => 'test',
    'description' => t('OG Membership Custom Property.'),
    'getter callback' => 'mymodule_callback'
  return $info;

But here I cannot access the $gid, or anything, for that matter:

function mymodule_callback(){
  //do some stuff with the $gid and $etid of the OG-Membership

Any help is appreciated; maybe someone knows how to debug the in rules available properties? Thanks.


If you use hook_entity_property_info_alter() you have access to the entity in question in the callback as well.

function mymodule_callback($item){
  //$item is the entity in question in my case $og_membership
  //hence I can acces the gid like this:
  $og_membership = $item; //redundant, just to show what I mean
  $gid = $og_membership->gid;

  //either do some more stuff or just return the gid as an example
  return $gid;

Now I can access the property and it returns the gid. For example in rules:


Hope this is useful to others as well.

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