Lua add member

add_member.lua

-- add name in the current database members list
function db.add_member(self, name)
   local data, err = db:get('_security')
   if not data then error(err) end 
   if not data.members then  
     data.members = {}
     data.members.names = { name } 
   else
     local current_members = data.members.names
     data.members.names = table.insert(current_members, name) 
   end 
   data._id = '_security'
   return db:put(data)
end