Step 5. 数据库
但是，你应该也已经发现一个问题，就是，当 NeOmega 重启时，好像...欸？封禁又失效了？
这是当然的，因为刚刚只是把封禁信息存储到一个变量里，然而变量会因为 NeOmega 的关闭或重载丢失。
所以 NeOmega 有一个简单类似数据库的玩意儿，可以帮你完成数据存储。
首先，我们需要先创建或者打开一个数据库，我们希望这个数据库被存储在，磁盘中的：
- neomega_storage/data/玩家封禁信息
具体这么做：
lua
local player_banned_db=coromega:key_value_db("玩家封禁信息")符合直觉的，既然我们已经使用了数据库替代了 player_banned 这个变量，那么自然我们也应该在其他地方用数据库操作进行替代：
lua
player_banned[player_name]={
player_banned_db:set(player_name,{
ban_until=ban_until,
ban_reason=ban_reason,
})lua
local ban_info=player_banned[player_name]
local ban_info=player_banned_db:get(player_name) lua
player_banned[player_name]=nil
player_banned_db:delete(player_name) 现在，即使 neoemga 重启了，封禁信息依然有效，不是吗？
为了防止你漏掉什么步骤，到目前为止，代码看起来应该像这样：
lua
local omega = require("omega")
local json = require("json")
package.path = ("%s;%s"):format(
package.path,
omega.storage_path.get_code_path("LuaLoader", "?.lua")
)
local coromega = require("coromega").from(omega)
coromega:print("config of 玩家封禁：",json.encode(coromega.config))
local take_num_from_string = function(str, unit_names)
-- convert "1d2h3m4s" -> 2 by take_num_from_string("1d2h3m4s",{ "h", "H", "小时", "时"})
for _, unit_name in pairs(unit_names) do
local num = str:match("(%d+)" .. unit_name)
if num then
return tonumber(num)
end
end
return 0
end
local function ban_time_to_ban_until_time(ban_time)
if not ban_time or ban_time=="" then
return nil
end
-- time string can be a single number, or a string like "1d2h3m4s", or chinese like "1天2小时3分钟4秒"
local time_seconds = 0
-- try to parse as a single number
local time_num = tonumber(ban_time)
if time_num then
time_seconds = time_num
else
time_seconds = time_seconds + take_num_from_string(ban_time, { "d", "D", "天" }) * 86400
time_seconds = time_seconds + take_num_from_string(ban_time, { "h", "H", "小时", "时" }) * 3600
time_seconds = time_seconds + take_num_from_string(ban_time, { "m", "M", "分钟", "分" }) * 60
time_seconds = time_seconds + take_num_from_string(ban_time, { "s", "S", "秒" })
end
if time_seconds > 0 then
return coromega:now()+time_seconds
end
return nil
end
local player_banned_db=coromega:key_value_db("玩家封禁信息")
coromega:when_called_by_terminal_menu({
triggers = { "ban", "封禁", "玩家封禁" },
argument_hint = "[玩家名] [时间] [原因]",
usage = "从终端封禁玩家",
}):start_new(function(input)
local player_name = input[1]
local ban_until = ban_time_to_ban_until_time(input[2])
local ban_reason = input[3]
while not player_name or player_name == "" do
player_name = coromega:input("请输入要封禁的玩家名：")
if not player_name or player_name == "" then
coromega:print("玩家名不能为空")
end
end
while not ban_until do
ban_until = ban_time_to_ban_until_time(coromega:input("请输入要封禁的时间: "))
if not ban_until then
coromega:print("封禁时间不能为空")
end
end
if not ban_reason or ban_reason == "" then
ban_reason = coromega:input("请输入封禁原因：")
if not ban_reason or ban_reason == "" then
coromega:print("将封禁原因设置为：未设定")
ban_reason = "未设定"
end
end
coromega:log_and_print(("封禁玩家：%s 到 %s, 原因：%s"):format(player_name, os.date("%Y-%m-%d %H:%M:%S", ban_until), ban_reason))
player_banned_db:set(player_name,{
ban_until=ban_until,
ban_reason=ban_reason,
})
coromega:send_ws_cmd(("kick %s %s"):format(player_name,ban_reason),false)
end)
coromega:when_player_change():start_new(function(player, action)
if action=="offline" then
return
end
local player_name=player:name()
local ban_info=player_banned_db:get(player_name)
if ban_info then
local ban_until = ban_info.ban_until
local ban_reason=ban_info.ban_reason
if ban_until>coromega:now() then
coromega:send_ws_cmd(("kick %s %s"):format(player_name,ban_reason),false)
else
player_banned_db:delete(player_name)
end
end
end)
coromega:run()贡献者
wling
CMA2401PT