ruby - 将 JSON 字符串 append 到 Ruby 中已包含 JSON 的文件

Question

我正在尝试将一个 JSON 字符串 append 到一个已经有更多 JSON 字符串的文件中:

[
    {
        "title": "A test title",
        "content": "A test content",
        "date": "10/01/10",
        "author": "zad0xsis",
        "id": "vnMiP"
    },
    {
        "title": "A test title",
        "content": "A test content",
        "date": "10/01/10",
        "author": "zad0xsis",
        "id": "vnZiP"
    },
    {
        "title": "A test title",
        "content": "A test content",
        "date": "10/01/10",
        "author": "zad0xsis",
        "id": "vnAiP"
    }
]

我需要 append 像 {"title":"test","content":"test","date":"2011-12-10 21:35:48 +0100"这样的字符串"author":"zad0xsis","id":"0EhQ0"} 保留 JSON 格式:

[
    {
        "title": "A test title",
        "content": "A test content",
        "date": "10/01/10",
        "author": "zad0xsis",
        "id": "vnMiP"
    },
    {
        "title": "A test title",
        "content": "A test content",
        "date": "10/01/10",
        "author": "zad0xsis",
        "id": "vnZiP"
    },
    {
        "title": "A test title",
        "content": "A test content",
        "date": "10/01/10",
        "author": "zad0xsis",
        "id": "vnAiP"
    },
    {"title":"test","content":"test","date":"2011-12-10 21:35:48 +0100","author":"zad0xsis","id":"0EhQ0"}
]

所以它看起来像这样，简而言之， append 它以便它仍然是有效的 JSON。我怎样才能在 Ruby 中实现这一点？谢谢!

Answer 1

使用 json gem，您可以解析文件的内容，将新哈希添加到数组并将其重新编码为 JSON 以重写文件。