Drupal: Programmatically manage members of sub groups

This CodeLet let you Programmatically manage members of sub groups. also you can add sub group.
you can inviter/remove peoples of sub groups. Invitation will be sent by email.
after installation of this CodeLet you must have to pass the group gid on query string, 
Ex.  yourdomain/subgroups/$gid.

CodeLet Dependencies:

  1. Organic groups ( og )
  2. Subgroups for Organic groups ( og_subgroups )
  3. OG Invite People ( og_invite_people ).

 

Drupal: Last Login details

This CodeLet will store user's login history and creates a block. Admin can place this block on user pages or on pages. Future ammendments to this code will allow to use the stored login details to be displayed using a theme function.
This CodeLet will be submitted to Drupal.org community soon.