Redux无法读取Schema Normalizr

Question

我总是得到这样的错误：

  

未捕获（承诺）TypeError：无法读取属性   未定义的'periodListSchema'

这是我的代码：

我的架构

import { schema, arrayOf } from 'normalizr';

export const periodSchema = new schema.Entity('activePeriod');
export const periodListSchema = new schema.Array(periodSchema);

我的规范化行动

then(response => {
            console.log('normalized response', normalize(response.schema.periodListSchema));

这是我的回复

{"activePeriod":[{"periodID":2,"periodName":"Periode 27","startDate":"2016-11-11","endDate":"2016-12-11","remark":"Periode Alpha 27","isActive":"1"}],"status":"OK"}

我的Normalzr库是v3.2.2 有人可以帮我找出什么是错的吗？我正试图理解这一点。

Answer 1

1）Uncaught (in promise) TypeError: Cannot read property 'periodListSchema' of undefined由于response没有schema属性，因此引发了此错误，因此您无法从{{1}获取periodListSchema属性}

2）要规范化响应，您应该将句点数组传递给undefined func，并指定normalize。此外，如果您有非标准名称的id属性，则应在schema构造函数的选项中通过schema.Entity指定名称。

DEMO webpackbin

示例

idAttribute

<强>结果

import { schema, normalize } from 'normalizr';

export const periodSchema = new schema.Entity(
  'activePeriods',
  {},
  { idAttribute:'periodID' }
);
export const periodListSchema = [periodSchema];

const response = {"activePeriod":[{"periodID":2,"periodName":"Periode 27","startDate":"2016-11-11","endDate":"2016-12-11","remark":"Periode Alpha 27","isActive":"1"}],"status":"OK"};

console.log(
  normalize(response.activePeriod, periodListSchema)
);