mongodb如何创建固定大小集合

[253980289]

框架中没有找到mongodb如何创建固定大小集合的接口，以下类似各种测试均不成功。

local ok, result = self.database:runCommand("createCollection", self.name, "collection", {
    options = {
        -- 集合相关选项
        capped = false,
        size = 1024 * 1024,  -- 如果capped为true，设置集合大小，单位字节
        max = 1000,  -- 如果capped为true，设置最大文档数量，和size二选一
        autoIndexId = true,
        indexOptionDefaults = {},
        storageEngine = {
            name = "wiredTiger",
            wiredTiger = {
                engineConfig = {
                    cacheSizeGB = 1
                }
            }
        },
        validator = {},
        validationLevel = "off",
        validationAction = "error"
    }
})

if not ok then
    -- 处理错误
    print("Failed to create collection: ", result)
else
    -- 处理成功结果
    print("Collection created successfully: ", result)
end

[253980289]

用ai帮忙解决了
···
function mongo_db:createCollection(name, options)
local cmd = {
"create",
name
}

if options then
    for k, v in pairs(options) do
        table.insert(cmd, k)
        table.insert(cmd, v)
    end
end

return self:runCommand(table.unpack(cmd))

end

-- 创建一个大小为 100000 字节,最多包含 100 个文档的固定集合
local options = {
capped = true,
size = 100000, -- 字节为单位
max = 100 -- 可选参数,限制文档数量
}

db:createCollection("mycappedcoll", options)
···