Should we merge multiple views outputs into 1 graph?

An alternative is #1398768: Why not use the views relations to get relations?

I added a new render engine graphapi_raw.module for this purpose. It's output can be merged with other graph output to form a whole.

For this to happen we need a 'raw' rendering mode which spits out just graph API data.

This would also help debugging graph data.

Maybe this is better code practise (thanks to li_ tw_ o_l)

   function omgomgomg_views_get_result_rows($view) {
      $rows = array();            
      $fields = $view->get_items('field');
      foreach (array_keys($view->result) as $index) {
        foreach ($fields as $field_id => $field) {
          $field_value = $view->field[$field_id]->get_value($view->result[$index]);
          $rows[$index][$field_id] = $field_value;
        }
      }    
      return $rows;
    }

A hint from merlin@irc

You can use $view->execute() and then $view->result but you will not get any data that relied on a secondary query, which is pretty much anything that is many to one and a few other random things.
You can loop through $view->field and use get_value() to get the proper raw data, but interpreting it may be more difficult than you'd like.

Not sure what's best now :p

@See http://drupal.org/project/views_groupby
@See http://diggit.drupalextras.com/node/17873/related_links

@see http://drupal.stackexchange.com/questions/31786/how-to-create-a-union-of...

The relationship user-comment-node-user would need 2 views.

user-comment-node
+
node-user

and that needs a merge I'm afraid. But it's not a big deal for me now. I'll try to sketch a views UI next week.

Trouble is with views arguments.

@SocialNicheGuru thanks for the pointer. That project does a cross join which only create a http://en.wikipedia.org/wiki/Complete_graph

The idea for this issue is to merge two graphs. That is merge from/to's and add links.

But I guess I could study their code on how do merge views data.

@naught101 my though of line is to render a sub view / graph in a raw format (the array or object 7.x-2.x)

The merge lies in the parent view when outputting to take and integrate the raw data.

Problem I'm facing is duplicate links from child views. When is a link duplicated and when not? #1209426: Multiple links from A to B are not supported

Updated issue summary.

This is postponed for 8.x-1.x