bsw/jbe@0: local area_id = assert(param.get("area_id", atom.integer), "no area id given")
bsw/jbe@0: local membership = Membership:by_pk(area_id, app.session.member.id)
bsw/jbe@0: 
bsw@1045: local area = Area:by_id(area_id)
bsw/jbe@0: if param.get("delete", atom.boolean) then
bsw/jbe@0:   if membership then
bsw/jbe@0:     membership:destroy()
bsw@1045:     slot.put_into("notice", _"Subscription removed")
bsw/jbe@0:   else
bsw@1045:     slot.put_into("notice", _"Subscription already removed")
bsw/jbe@0:   end
bsw/jbe@0:   return
bsw/jbe@0: end
bsw/jbe@0: 
bsw@1045: if not app.session.member:has_voting_right_for_unit_id(area.unit_id) then
bsw@1045:   slot.put_into("error", _"You are not eligible to participate")
bsw@1045:   return false
bsw@1045: end
bsw@1045: 
bsw/jbe@0: if not membership then
bsw/jbe@0:   membership = Membership:new()
bsw/jbe@0:   membership.area_id    = area_id
bsw/jbe@0:   membership.member_id  = app.session.member_id
bsw@1045:   membership:save()
bsw@1045:   slot.put_into("notice", _"Subject area subscribed")
bsw/jbe@0: end