I solved my problem with the Flags module: I created the flags called 'Commented on this node' & 'First reaction'* and rule called 'Commented on a node'. These are my rule's settings:
EVENTS: After saving a new comment
CONDITIONS:
- Content is of type Parameter: Content:
[comment:node]
, Content types:
Article
- NOT Node is flagged Parameter: Flag: Commented on this node, node:
[comment:node]
, User on whose behalf to check: [comment:author]
ACTIONS:
- Grant points to a user Parameter: User:
[comment:author]
,
Points: 2, Points category: Reaction, Entity: [comment:node]
,
Description: New reaction, Operation: Add,
Display: false, Moderate: Automatically approved
- Flag a Node Parameter: Flag: Commented on a node, Node:
[comment:node]
, User on whose behalf to flag: [comment:author]
, Skip
permission check: false
- Flag a Comment: Parameter: Flag: First reaction, Comment:
[comment]
,
User on whose behalf to flag: [comment:author]
, Skip permission
check: false
So, every time a user adds a comment to a certain node for the first time, the node is flagged as 'Commented on a node', the reaction is flagged as 'First reaction' and the user who added the comment is rewarded 2 points.
**I use the 'First comment' flag in a related question.*
comments by user ==
- and second rule should remove these points on comment deletion. But that's just a rough idea, nothing solid yet.