使用输入更新 redux 状态

Question

如何从文本输入更新 redux 的状态？

我正在尝试使用文本输入做一个非常简单的 "Hello World"。当有人输入文本输入时，它应该更新我商店的 "searchTerm" 值。

我想不通这些事情： 1. 如何获取输入值并将其传递给 "onChange" 处理程序？ 2. "search" 动作似乎调用正确，但我的reducer 函数从未使用过（没有console.log）。

SearchForm.js（组件）

import React, {Component, PropTypes} from 'react';
import {bindActionCreators} from 'redux';
import {connect} from 'react-redux';
import {search} from 'redux/modules/search-term';

@connect(
  null,
  dispatch => bindActionCreators({ search }, dispatch)
)

export default class SearchForm extends Component {
  static propTypes = {
    search: PropTypes.func.isRequired,
  }

  render() {
    return (
      <input type="text" placeholder="Search" onChange={search} />
    );
  }
}

search-term.js (action & reducer)

const SEARCH = 'redux-example/repo-filter/SEARCH';

const initialState = {
  searchTerm: null
};

export default function reducer(state = initialState, action = {}) {
  console.log("reducing");

  switch (action.type) {
    case SEARCH:
      return {
        searchTerm: action.term
      };
    default:
      return state;
  }
}

export function search(term) {
  return {
    type: SEARCH,
    term
  };
}

reducer.js

import { combineReducers } from 'redux';
import multireducer from 'multireducer';
import { routerStateReducer } from 'redux-router';

import search from './search-term';

export default combineReducers({
  router: routerStateReducer,
  search
});

Answer 1

将动作创建者绑定到更改事件时，您应该使用 this.props.search：

<input type="text" placeholder="Search" onChange={(event) => this.props.search(event.target.value)} />

使用输入更新 redux 状态

Update redux state with an input

flux

reactjs

reactjs-flux

redux