文件夹系统的 Firebase 数据结构/索引

Question

我有以下数据结构：

"users": {
    $userid: {
        "forms": {
            "ID_OF_FORM 1": { "name": "Name goes here" },
            "ID_OF_FORM 2": { "name": "Name goes here" }
        }
    }
}

我希望能够将我的“表单”放在文件夹系统中，以便更好地为用户组织所有表单。现在我用/users/auth.id/forms/ID给他们打电话。我计划将对象放入 forms 对象中，但如果我这样做，我认为我将无法再仅使用 form id 来调用它们。

我不知道应该如何存储这些文件夹以便轻松显示它们。

• 我需要显示 root 内的所有文件夹或 用户当前所在的文件夹。
• 我还需要能够使用表单的 ID 调用表单

你认为这行得通吗？有没有人对此有更好的建议？

"users": {
    $userid: {
        "forms": {
            "ID_OF_FORM 1": { "name": "Name goes here", "folder_id": "ID_OF_FOLDER" },
            "ID_OF_FORM 2": { "name": "Name goes here", "folder_id": "ID_OF_FOLDER" }
        },
        "folders": {
            "ID_OF_FOLDER 1": { "name": "name of folder" },
            "ID_OF_FOLDER 2": { "name": "name of folder" },
            "ID_OF_FOLDER 3": { 
                "name": "name of folder",
                "ID_OF_FOLDER 4": { "name": "would this even work" }
            }
        }
    }
}

Answer 1

对我来说看起来不错，尽管除非知道所有用例（* 并不是真正适合的论坛），否则很难确定。

我会把folders 改成：

    "folders": {
        "ID_OF_FOLDER 1": { "name": "name of folder" },
        "ID_OF_FOLDER 2": { "name": "name of folder" },
        "ID_OF_FOLDER 3": { "name": "name of folder" },
        "ID_OF_FOLDER 4": { "name": "would this even work", "folder_id": "ID_OF_FOLDER 3" }
    }

否则，您将面临超过 Firebase 对树深度施加的 32 级限制的风险。好处是您可以在此处通过其 ID 直接访问任何文件夹。

您可以考虑为所有项目类型使用单个*节点，包括表单和文件夹（以及在构建应用程序时可能出现的任何其他内容）：

    "items": {
        "ID_OF_FORM 1": { "type": "form", "name": "Name goes here", "folder_id": "ID_OF_FOLDER" },
        "ID_OF_FORM 2": { "type": "form", "name": "Name goes here", "folder_id": "ID_OF_FOLDER" }
        "ID_OF_FOLDER 1": { "type": "folder", "name": "name of folder" },
        "ID_OF_FOLDER 2": { "type": "folder", "name": "name of folder" },
        "ID_OF_FOLDER 3": { "type": "folder", "name": "name of folder" },
        "ID_OF_FOLDER 4": { "type": "folder", "name": "would this even work", "folder_id": "ID_OF_FOLDER 3" }
    }

但我认为目前这对您的用例不太有利。鉴于您所说，文件夹和表单之间的拆分似乎相当不错。