Question

感谢您一看。

这是我的代码：

来自models / Cart.js

import matplotlib.pyplot as plt
import matplotlib.gridspec as gspec
import numpy as np

fig = plt.figure()
gs = gspec.GridSpec(2, 2)
gs.update(hspace=0.7, wspace=0.7)
ax1 = plt.subplot(gs[0, 0])
ax2 = plt.subplot(gs[1, 0])
ax3 = plt.subplot(gs[0, 1])
ax4 = plt.subplot(gs[1, 1])


x1 = np.linspace(1,10,10)

ax1.plot(x1, x1**2)
ax1.set_xlabel('ax1 x')
ax1_2 = ax1.twinx()
ax1_2.plot(x1, x1**3)
ax1_2.set_ylabel('ax1_2 y')
ax1.set_ylabel('ax1 y')

# To save time I left the other cells blank, but it should work fine.

plt.show()

来自cart.js

var mongoose = require('mongoose');

var CartSchema = mongoose.Schema({
    owner: {type: mongoose.Schema.Types.ObjectId, ref: 'User'},
    products: [ {type: mongoose.Schema.Types.ObjectId, ref: 'Product', quantity:     Number} ],
    created: Date,
    updated: Date
});


exports.Cart = mongoose.model('Cart', CartSchema);

我得到的错误是var model = require('../models/Cart'); //modify a cart router.post('/update/:id', function(req, res, next){ var cart = model.Cart(); console.log(cart); cart.findByIdAndUpdate(req.params.id, { products: req.body.products, updated: moment().format() }, {new:true}, function(err, result){ if(err) throw err; res.status(200).send(result); }); });，位于cart.findByIdAndUpdate，购物车记录为undefined is not a function。

Answer 1

尝试删除或评论此行：ControllerAs 并在行//var cart = model.Cart();上将cart替换为model。

mongodb与猫鼬;无法更新1个文档

1 个答案: