如何根据对象数组中的对象数组过滤此数组

Question

我已经被这个问题困住了几个小时了。假设我的潜在客户对象有一个matched_listings 字段并且匹配列表字段有一个listing.contact_details 对象数组，里面有一个电子邮件字段，我需要根据对象的listing_contact_details 数组过滤我的潜在客户数据，基本上返回与电子邮件匹配的所有潜在客户在matched_listings 的listing_contact_details 和我从req.query 获得的电子邮件变量中。我尝试使用集合、过滤器、映射、包含方法来实现，但我似乎无法理解。希望得到一些帮助:)

const getLeads = async (req, res, next) => {
  const email = req.query.email;

  let leads;
  try {
    leads = await Lead.find().populate({
      path: "matched_listings",
      match: { "listing_contact_details.email": email },
    });
  } catch (err) {
    const error = new HttpError("Something went wrong", 500);
    return next(error);
  }

  let matchedLeads;
  //filter logic
  res.json({ response: 'success'});
}; 

//Sample data set:

leads = [
  {
    matched_listings: [
      {
        listingName: "sample name",
        listing_contact_details: [
          {
            email: "email-sample@gmail.com",
            name: "sample name of contact detail",
          },
        ],
      },

      {
        listingName: "sample name2",
        listing_contact_details: [
          {
            email: "email-sample@gmail.com",
            name: "sample name of contact detail",
          },
        ],
      },
    ],

    leadName: "sample name",
    leadField: "sample field",
  },

  {
    matched_listings: [
      {
        listingName: "sample name",
        listing_contact_details: [
          {
            email: "sample-2@gmail.com",
            name: "sample name of contact detail",
          },
        ],
      },

      {
        listingName: "sample name2",
        listing_contact_details: [
          {
            email: "sample-2@gmail.com",
            name: "sample name of contact detail",
          },
        ],
      },
    ],

    leadName: "sample name 2",
    leadField: "sample field 2",
  },
];

Answer 1

如果您想根据单个电子邮件进行过滤，您可以试试这个：

leads = await Lead.find({
"matched_listings.listing_contact_details.email": email
});