The gridfield project is intended to implement "Webform module grid component" into a "grid field using the Field API" so it can be used by core and contrib modules. It will be integrated with entity so data is views exportable.
The sandbox project was started by realityloop who is now Seeking new maintainer. The code is in gridfield.zip discussed here https://drupal.org/node/1730102. tedbow has offered to help/mentor/instruct on building the module. Currently realityloop, tedbow and SpadXIII have project access.
I have no dev or maintaining skills relevant to drupal or any code but see the need for completing implemention of this project for the benefit of the D.o community.
I've seen other GPL implementations of using grid field questions and answer arrays in projects like limesurvey, but considering Drupal's dexterity, I'm surprised that this has not yet been implemented in core.
The active maintainer of diff, realityloop has invested considerable time to gridfield with the 1st of 14 "?" at line 176 of 417 lines of code. So far, gridfield as it stands shows up in the Field Type select list, has question and answer arrays but to me it does not appear to either store data or render data results.
I wonder if this module can aleviate some of the question limitations of entityform?
A few D.o users besides me have asked about webform grid component being available in core including:
- gamelodge
- rajarju
- and possibly johnjbranson https://drupal.org/node/2152357 here.
Thanks for considerating.