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我對react.js和flux架構非常新穎。我只是創建了一個非常小的例子來理解流量架構的流程。但是我在添加操作和存儲後面臨一些問題。這裏是我的代碼:React.js Dispatcher和setState()問題,同時調度一個動作
Name.jsx(組件)
var React = require('react');
var ReactDOM = require('react-dom');
var NameActions = require('../actions/NameActions');
var NameStore = require('../stores/NameStore');
var Name = React.createClass({
getInitialState: function() {
return {fname: 'Arjita', lname: 'Mitra'};
},
_changeIt: function() {
var fName = this.state.fname;
var lName = this.state.lname;
var data = {fName: fName , lName: lName};
NameActions.setName(data);
},
handleChange: function(field,e) {
var nextState = {}
nextState[field] = e.target.value;
this.setState(nextState);
},
render: function() {
return (
<div>
<div className = "container">
<input type="text" name="firstName" id="idFname" value={this.state.fname}
onChange={this.handleChange.bind(this,'fname')}/>
<input type="text" name="lastname" id="idLname" value={this.state.lname} onChange={this.handleChange.bind(this, 'lname')}/>
<button type="button" name="btnok" onClick={this._changeIt()}>Process</button>
</div>
</div>
);
}
});
module.exports = Name;
NameActions.js
var ActionsHelper = require('./ActionsHelper');
var NameConstants = require('../constants/NameConstants');
var NameActions = {
setName: function(value) {
ActionsHelper.dispatch(NameConstants.SET_NAME, value);
}
}
module.exports = NameActions;
NameConstants.js
var _BASE = "NAME_CONSTANTS";
function construct(value) {
return _BASE + "_" + value;
}
module.exports = {
SET_NAME : construct("SET_NAME")
};
NameStore.js
var AppDispatcher = require('../dispatcher/AppDispatcher');
var EventEmitter = require('events').EventEmitter;
var _ = require('underscore');
var NameConstants = require('../constants/NameConstants');
function setValue(value) {
console.log(value);
}
var NameStore = _.extend({}, EventEmitter.prototype, {
addChangeListener : function(callback) {
this.on('change', callback);
},
emitChange : function() {
this.emit('change');
},
removeChangeListener : function(callback) {
this.removeListener('change', callback);
}
});
AppDispatcher.register(function(payload) {
var action = payload.action;
var data = action.data;
switch (action.actionType) {
case NameConstants.SET_NAME :
setValue(data.value);
break;
default :
return true;
}
NameStore.emitChange();
return true;
});
module.exports = NameStore;
個
錯誤我目前面臨的是,只要我在名稱字段中開始鍵入其投擲警告 -
警告:的setState(...):現有的狀態轉變(如render
內)期間,不能更新。渲染方法應該是道具和狀態的純函數。 http://localhost:8080/js/bundle.js Line 24836
另外還有一個錯誤是無法在派送過程中調度。
我被困了很長時間。請幫我解決。