Support for Search API Indexes / Entity Views

Unfortunately I've no clue if there's a documentation about this. I developed it freestyle - analysing how the stuff in the Entity module works. Maybe we should ask fago what he thinks ;)

Here's the POC I'm working on:
Importing the Geonames Data into Drupal to be able to fetch metadata (e.g. closest town) for given coordinates without calling an external service.
What I've so far:

• Using the Data module to define the local data storage.
  Use the Data Entity module to define entities / and entity relations - patch. I use Feeds to import the data.
• Use Search API Location (Search API / Search API solr). Works seamlessly because we deal with entites.
• Use Views and Views GeoJSON to query the Search API index and output the content as GeoJSON.
  And this works only with the patch attached here.

The patch basically changes the way how the entity / field information are aquired. The Search API / Entity module Views integration uses its own way - I'm not sure if there's a "proper" way but that's what we deal with atm.
Besides accessing those meta data the usage is transparent. Field rendering and so on work as usual.

Well I get notices, notices kill ajax.
So I had to fix it anyway - why not straight away integrate it? Or am I missing something?

wow that was fast :) Thanks!