@bp.route('/imports/<import_id>/citizens/<citizen_id>', methods=['PATCH'])
def update_user(import_id, citizen_id):
    citizen = db.session.query(Citizen).filter_by(import_id=import_id, citizen_id=citizen_id).first()
    if (citizen == None):
        return ('', 400)
    updated_info = request.json
    citizen_address = citizen.get_address()
    print(citizen_address)
    for (key,val) in updated_info.items():
        if key == 'relatives':
            upd_relatives = True
        elif key == 'name':
            citizen.set_name(val)
        elif key == 'birth_date':
            citizen.set_birth_date(val)
        elif key == 'gender':
            citizen.set_gender(val)
        elif key in citizen_address.keys():
            citizen_address[key]=val
            upd_address = True
        else:
            return ('', 400)

    print(citizen_address)
    if upd_address:
        new_address = "{0};{1};{2};{3}".format(citizen_address['town'], citizen_address['street'], citizen_address['building'], citizen_address['apartment'])
        citizen.set_address(new_address)

    if upd_relatives:
        print("Upd relatives")
        current_relatives = []
        new_relatives = []
        added_relatives = []
        deled_relatives = []
        if citizen.relatives != '':
            current_relatives = list(map(int, citizen.relatives.split(';')))
            current_relatives.sort()
            new_relatives = updated_info['relatives']
            new_relatives.sort()
        else:
            new_relatives = updated_info['relatives']

        new_relatives_ptr = 0

        for current_relative in current_relatives:
            while (new_relatives_ptr < len(new_relatives) and
                    new_relatives[new_relatives_ptr] < current_relative):
                added_relatives.append(new_relatives[new_relatives_ptr])
                new_relatives_ptr += 1
            if (new_relatives_ptr >= len(new_relatives) or
                new_relatives[new_relatives_ptr] != current_relative):
                deled_relatives.append(current_relative)
            else:
                new_relatives_ptr += 1

        while new_relatives_ptr < len(new_relatives):
            added_relatives.append(new_relatives[new_relatives_ptr])
            new_relatives_ptr += 1

        for deled_relative in deled_relatives:
            citizen_to_clear = db.session.query(Citizen).filter_by(import_id=import_id, citizen_id=deled_relative).first()
            if citizen_to_clear is None:
                return '', 400
            gd = citizen_to_clear.relatives
            gd = gd.replace(str(citizen_id) + ';', '')
            gd = gd.replace(str(citizen_id), '')
            citizen_to_clear.relatives = gd

        for added_relative in added_relatives:
            citizen_to_add = db.session.query(Citizen).filter_by(import_id=import_id, citizen_id=added_relative).first()
            if citizen_to_add is None:
                return '', 400
            gd = citizen_to_add.relatives
            gd = gd.replace(str(citizen_id) + ';', '')
            gd = gd.replace(str(citizen_id), '')
            if gd == '':
                gd = str(citizen_id)
            else:
                gd = str(citizen_id) + ';' + gd
            citizen_to_add.relatives = gd

        citizen.relatives = ';'.join(list(map(str, new_relatives)))
        print(new_relatives, current_relatives)
        print(added_relatives, deled_relatives)

    return_answer = citizen.json()
    print(citizen.__dict__)

    if citizen.error:
        return '', 400

    db.session.commit()
    return jsonify({'data':return_answer}), 200