many=True not working for SerializerMethodResourceRelatedField

[kaldras]

I would like to use the SerializerMethodResourceRelatedField to get multiple models through a function. It works when the function returns only a single model object, but not with a list of objects.
If I try to use the many=True param, the call of the defined function fails with the error message:

'Entry' object has no attribute 'get_hot_entries'

It seems the get_attribute function of the SerializerMethodResourceRelatedField is never called, when passing many=True.

Example:

class EntrySerializer(serializers.ModelSerializer):
  hot_entries = relations.SerializerMethodResourceRelatedField(
    source='get_hot_entries',
    many=True,
    read_only=True
  )

  included_serializers = {
    'hot_entries': 'EntrySerializer'
  }

  def get_hot_entries(self, obj):
    return Entry.objects.filter(hot=True)

  class Meta:
    model = Entry

I'm using django-rest-framework-json-api v2.0.0-beta.2

[jsenecal]

FYI There is already some work done to fix this... But the PR was closed because it did not follow the direction of the project. See #151