Question

我已经成功创建了Mongoose模型并为其属性添加了验证。例如，属性不能为空或必须唯一。当我创建新文档时，模型及其验证将按预期工作。但是问题是，

当我尝试更新文档时，验证不起作用，它接受空白或重复值，无法理解这里出了什么问题。

我的模特

/**
 * Module dependencies.
 */

const mongoose = require('mongoose');
const crypto = require('crypto');

const Schema = mongoose.Schema;

/**
 * User Schema
 */

const ProductSchema = new Schema({
  brandName: { type: String, default: '', index: true },
  unit: { type: String, default: '' }
});


/**
 * Validations
 */


ProductSchema.path('brandName').validate(function (brandName) {
  if (this.skipValidation()) return true;
  return brandName.length;
}, 'Brand Name cannot be blank');

ProductSchema.path('brandName').validate(function (brandName) {
  return new Promise(resolve => {
    const Product = mongoose.model('Product');
    if (this.skipValidation()) return resolve(true);

    // Check only when it is a new brandName or when brandName field is modified
    if (this.isNew || this.isModified('brandName')) {
      Product.find({ brandName }).exec((err, products) => resolve(!err && !products.length));
    } else resolve(true);
  });
}, 'Product Name `{VALUE}` already exists');

ProductSchema.path('unit').validate(function (unit) {
  if (this.skipValidation()) return true;
  return unit.length;
}, 'Unit cannot be blank');

 
/**
 * Methods
 */
 

ProductSchema.methods = {

  skipValidation: function () {
    return false;
  }

};

ProductSchema.pre('findOneAndUpdate', function(next) {
  this.options.runValidators = true;
  next();
});



const ProductModel = mongoose.model("Product", ProductSchema);
module.exports = ProductModel;

我正在尝试为ProductName实施它，但是无法正常工作。

我已经为findOneAndUpdate添加了预钩，但是现在我遇到了错误

reason: TypeError: this.skipValidation is not a function
at C:\1-projects\om\ProductManager\Model\productModel.js:53:12

猫鼬模型验证不适用于模型更新

0 个答案: