Ability to Add Fields to Relationships and Child-Node Display

I'm voiting for this feature also!
it is useful for me also, since I'm collecting scientific papers and relate them using "citations" and "cited by" (similarly to http://isiknowledge.com). sometime it is very useful not only to say "paper A refer to paper B", but also to make a note in which context paper A refer to B (let's say "paper use a method described in B"). I guess it is rather easy to implement: just add one more field to linking table where you keep references and interface.
thank you

I would like to encourage more discussion, comments, detailed suggestions, even patches from everybody regarding this feature. Go ahead and brainstorm.

unfortunately my experience with mysql and php is not big enough, so I cannot suppose a good patch or so. my idea is to modify the table relativity like this:

CURRENT:
+------------+------------------+------+-----+---------+-------+
| Field      | Type             | Null | Key | Default | Extra |
+------------+------------------+------+-----+---------+-------+
| nid        | int(10) unsigned |      | MUL | 0       |       |
| parent_nid | int(10) unsigned |      | MUL | 0       |       |
+------------+------------------+------+-----+---------+-------+

MODIFIED:
+------------+------------------+------+-----+---------+-------+
| Field      | Type             | Null | Key | Default | Extra |
+------------+------------------+------+-----+---------+-------+
| nid        | int(10) unsigned |      | MUL | 0       |       |
| parent_nid | int(10) unsigned |      | MUL | 0       |       |
| comment    | longtext         |      |     |         |       |
+------------+------------------+------+-----+---------+-------+

then implement functions which add, display, edit the field comment. That's basically it. but as I sad, I cannot implement this...

I'm afraid that adding anything that approaches *content* to the table would ruin the whole concept of Relativity. The idea (genius) behind it is that it allows related data to quickly link to each other and to enforce those relationships in a way that is not really possible otherwise. Content has to *exist* somewhere, as part of another node in the graph, otherwise it has no intrinsic value. Therefore whatever data structure you want to manage should to be a part of the directed graph (http://en.wikipedia.org/wiki/Directed_graph) that Relativity manages.

Adding semantics to the vertex would require the integration of RDF (or OWL), something the Relationship module (http://drupal.org/project/relationship) aims at implementing. Darius mentionned he'd eventually work on it this integration (I'd be more than happy to collaborate on that too... it's a fascinating project). A successful merge between those two modules would probably go down in the history of computer science as one of it's turning point as far as data management is concerned -- since RDF is so intrinsically cryptic that it has few if any practical applications except in some highly specialized fields, and Relativity (as a front end) works *out of the box* to perform it's magic.

-) efolia (-

i don't have any suggestion when it comes to adding *general* types of fields to a relation object

but it really sounds like all you need is one "label" for the relationship that allows you to specify what type of relationship it is, as well as to display this relationship label on page view

this (as well as inline CRUD operatoins) is easily accomplished with my cck subform module (http://subform.googlecode.com/svn/trunk/subform_trunk.zip)

If anyone is still interested in this feature, see comment #13 at http://drupal.org/node/82415

It is a method for displaying (CCK) field data for each (Relativity) child in a (Views) table embedded in the parent node (via node-parent.tpl.php).

Hope you like it :)