Question

我正在处理此模块，它是一种邮政表格，用于收取费用（姓名，日期，金额，图像和说明）。我已经弄清楚了如何将发布数据放入一行数据的mongo中，但是我希望用户能够提交多行（即多次支出）。不幸的是，当我尝试使用该数据的多个实例提交表单时，出现错误！

错误：费用验证失败：日期：路径“日期”的值“ ['2018-07-01'，'2018-07-09']”的强制转换为日期

是否有关于如何正确提交上述数据的多行的想法？

INFO：

我正在使用Express作为服务器
用于数据库的MongoDB

ExpenseForm.js->（使用哈巴狗模板引擎）

button#submitExpense(type='submit' form='addExpenseForm').btn Submit 
        // ADD EXPENSE FORM
        form#addExpenseForm(method='POST' action='/expenses').row
          div.col-md-12.add-expense-row-wrapper
            div#expenseRow.row.form-group
              input.form-control.col-md-2(type='text' name='name' placeholder='Enter Name*')
              input.form-control.col-md-2(type='date' name='date')
              input.form-control.col-md-2(type='number' name='amount' placeholder='Enter Amount*')
              input.form-control.col-md-2(type='text' name='description' placeholder='Description*')
              input.col-md-3(type='file' name='file' id='files' placeholder='Upload receipt' multiple)
              button#deleteExpenseRow.col-md-1.btn.delete-expense-row(type='button' )
                i.fas.fa-trash-alt
        div.row.add-expense-button-wrapper 
          button#addExpenseRow.btn(type='button')
            i.far.fa-plus-square

也忘记了我的架构

expense.js->

const ExpenseSchema = new mongoose.Schema({
  employee: {
    type: String,
    required: true,
    trim: true
  },
  date: {
    type: Date,
    required: true,
    default: Date.now
  },
  amount: {
    type: Number,
    required: true,
    validate: {
      validator: Number.isInteger,
      message: '{VALUE} is not an integer value'
    }
  },
  description: {
    type: String,
    required: true
  },
  file: {
    type: Buffer,
    required: true
  }
});

var Expense = mongoose.model('Expense', ExpenseSchema);
module.exports = Expense;

和后路线 index.js->

// POST /expenses
router.post('/expenses', function(req, res, next) {
  // Expense.getExpenses({
  //   name: req.body.name,
  //   date: req.body.date,
  //   amount: req.body.amount,
  //   description: req.body.description,
  //   file: req.body.file
  // }, 10, function(err, post) {
  //   if (err) {
  //     return next(err);
  //   }
  //   console.log(req.body);
  //   res.json(post);
  // });


  // create object with form input
  var expenseData = {
    employee: req.body.name,
    date: req.body.date,
    amount: req.body.amount,
    description: req.body.description,
    file: req.body.file
  };

  // store data from from into mongo
  Expense.create(expenseData, function(error) {
    if (error) {
      return next (error);
    } else {
      console.log(expenseData);
      return res.redirect('/dashboard');
    }
  });

});

Answer 1

因此，数据将以数组形式出现。 name将包含所有名称的数组，依此类推。您可以遍历所有对象并保存在数据库中，然后在保存完最后一项后返回。

var employee = req.body.name;
var date = req.body.date;
var amount = req.body.amount;
var description = req.body.description;
var file = req.body.file;

var expenseData = {};

employee.forEach(function(element, index, array) {
    expenseData = {
        employee: employee[index],
        date: date[index],
        amount: amount[index],
        description: description[index],
        file: file[index]
    };
    Expense.create(expenseData, function(error) {
        if (error) {
            return next(error);
        } else {
            if (index === employee.length - 1) {
                return res.redirect('/dashboard');
            }
        }
    });
});

Answer 2

步骤如下：

您确实确实需要将数据收集到一个数组中-看起来像这样：expenseArr = [{row1Data}，{row2Data}，...]。
在您的发布路线内，您需要导入费用模型-类似于以下内容：常量费用= require（'thePathAndNameOfYourSchemaExportFile'）
在您的发布路线内调用expenses.insertMany（expenseArr）方法，猫鼬将执行必要的操作。在最后一步中，别忘了您需要等待insertMany完成（建议您在发生问题时进行回调）。

在Mongo的一个发布请求中提交多个数据实例

2 个答案: