【数据存储】玩家改名数据迁移：名字键空间的批量搬家方案

local NAME_SPACES = { "GUILD_LEDGER", "MENTOR_RANK", "REPORT_LIST" }
local function migrateKeys(oldName, newName)
    local ok = 0
    for _, space in ipairs(NAME_SPACES) do
        local oldKey = space .. "_" .. oldName
        local val = getsysvar(oldKey)
        if val ~= nil and val ~= "" then
            setsysvarex(space .. "_" .. newName, val, 1)
            ok = ok + 1
        end
    end
    return ok
end

function doRename(actor, newName)
    local player = class(actor)
    local oldName = player:GetName()
    local moved = migrateKeys(oldName, newName)
    if moved < #NAME_SPACES then
        setsysvarex("MIGRATE_TODO", oldName .. ">" .. newName, 1)
        sendmsg(actor, 0, "部分数据迁移延迟，稍后自动完成")
        return
    end
    sendmail(newName, 0, "改名成功", "名下数据已迁移完成", "")
end