Start to delete user account

src/helpers/groups_helper.rs

@@ -488,6 +488,19 @@ pub fn delete(group_id: &GroupID) -> ResultBoxError {
         .exec()
 }
 
+/// Delete all the groups a user belongs to
+pub fn delete_all_user_groups(user_id: &UserID) -> ResultBoxError {
+    for group_id in &get_list_user(user_id, false)? {
+        if is_last_admin(group_id, user_id)? {
+            delete(group_id)?;
+        } else {
+            delete_member(group_id, user_id)?;
+        }
+    }
+
+    Ok(())
+}
+
 
 /// Turn a database entry into a group struct
 fn db_to_group(row: &database::RowResult) -> ResultBoxError<Group> {