• A group can have multiple group owners .
• Active members can become group owners.
• A group owner can add and remove himself and other members as/from owners .
• A group owner can cancel his own membership and other owner’s membership aswell .

• Single group owner for each group .
• Group owner info only present in Groups model as owner_id column.

• Handle the multiple group ownership privilege through group_membership model by adding an 'is_owner' column (type :boolean) in group membership model .
  • Members controller ⇒ add_to_group_owners action : updates the 'is_owner' flag of the respective membership record to true to grant group ownership privilege .
  • Members controller ⇒ remove_from_group_owners : updates the 'is_owner' flag of the respective membership record to false to remove group ownership privilege .

• All group ownership related scenarios (for privileges to the group owner) and checks are now done through group_membership model (in contrast to referring the groups model under present implementation) .

The following methods were added in groups model to handle addition and removal of group members as owners .

  add_as_owner
     Updates the is_owner column of membership record to true.
  
  remove_as_owner
     Updates the is_owner column of membership record to false.

The following columns are added in existing tables :

Table name - group_membership

Associations modified :

 User model :
 has_many :owned_groups, :through => :memberships , :source => :group , :conditions => ['is_owner = ?',true], :foreign_key => 'user_id'
 

• Once a user creates a group , the membership record is created with the is_owner flag set to true .
• An owner has the privilege to add other active members as owners or remove them from the owner list .
• If a member is already a member of the group the 'Add to group owners' link changes to 'Remove from group owners'.
• If the member is the only owner of the group , the 'Cancel' and 'Remove from group owners' links are disabled for him.
• Owner being a group member also gets enrolled in the In Person Events → auto enroll option.

• User suspension and trasfering ownership scenario from Manage Site → User Management :
  • If the owned group of the user have multiple owners them the ownership of the groups are not changed .
  • If the owned group of the user do not have multiple owners , the the ownership is changed from transferror(current owner) to transferee(new owner) .