Ich habe eine reactjs Komponente mit Redux, die asynchron Requisiten an Kind-Komponente übergibt.ReactJS übergeben Requisiten an Kind über Redux Ajax
In Kind-Komponente Ich versuche, die Daten in ComponentDidMount zu fangen, aber irgendwie funktioniert auch nicht, aber die untergeordnete Komponente wird gerendert.
Dies ist mein Stammkomponente
import React from 'react';
import {connect} from 'react-redux';
import {bindActionCreators} from 'redux';
import * as slidesActions from '../../actions/slidesActions';
import Slider from '../Partials/Slider'
import _ from 'underscore';
class HomePage extends React.Component {
constructor(props) {
super(props);
}
componentDidMount() {
this.props.actions.getSlides()
}
componentWillMount() {
const {slides} = this.props;
}
render() {
const {slides} = this.props;
return (
<div className="homePage">
<Slider columns={1} slides={slides} />
</div>
);
}
}
function mapStateToProps(state) {
return {
slides: state.slides
};
}
function mapDispatchToProps(dispatch) {
return {
actions: bindActionCreators(slidesActions, dispatch)
};
}
export default connect(mapStateToProps, mapDispatchToProps)(HomePage);
hier kommt mein Kind Komponente, wo ich versuche, übergeben Dias Requisiten zu bekommen, aber ist leer
import React from 'react';
import _ from 'underscore';
import Hammer from 'hammerjs';
class Slider extends React.Component {
constructor(props) {
super(props)
this.updatePosition = this.updatePosition.bind(this);
this.next = this.next.bind(this);
this.prev = this.prev.bind(this);
this.state = {
images: [],
slidesLength: null,
currentPosition: 0,
slideTransform: 0,
interval: null
};
}
next() {
const currentPosition = this.updatePosition(this.state.currentPosition - 10);
this.setState({ currentPosition });
}
prev() {
//TODO: work on logic
if(this.state.currentPosition !== 0) {
const currentPosition = this.updatePosition(this.state.currentPosition + 10);
this.setState({currentPosition});
}
}
componentDidMount() {
//here I try set a state variable on slides
let {slides} = this.props
let slidesLength = slides.length
this.setState({slidesLength})
this.hammer = Hammer(this._slider)
this.hammer.on('swipeleft', this.next);
this.hammer.on('swiperight', this.prev);
}
componentWillUnmount() {
this.hammer.off('swipeleft', this.next)
this.hammer.off('swiperight', this.prev)
}
updatePosition(nextPosition) {
const { visibleItems, currentPosition } = this.state;
return nextPosition;
}
render() {
let {slides, columns} = this.props
let {currentPosition} = this.state
let sliderNavigation = null
//TODO: this should go to slides actions
let slider = _.map(slides, function (slide) {
let Background = slide.featured_image_url.full;
if(slide.status === 'publish')
return <div className="slide" id={slide.id} key={slide.id}><div className="Img" style={{ backgroundImage: `url(${Background})` }} data-src={slide.featured_image_url.full}></div></div>
});
if(slides.length > 1) {
sliderNavigation = <ul className="slider__navigation">
<li data-slide="prev" className="" onClick={this.prev}>previous</li>
<li data-slide="next" className="" onClick={this.next}>next</li>
</ul>
}
return <div ref={
(el) => this._slider = el
} className="slider-attached"
data-navigation="true"
data-columns={columns}
data-dimensions="auto"
data-slides={slides.length}>
<div className="slides" style={{ transform: `translate(${currentPosition}%, 0px)`, left : 0 }}> {slider} </div>
{sliderNavigation}
</div>
}
}
export default Slider;
und hier habe ich meine Handlungen für Schieber
import * as types from './actionTypes';
import axios from 'axios';
import _ from 'underscore';
//TODO: this should be accessed from DataService
if (process.env.NODE_ENV === 'development') {
var slidesEndPoint = 'http://dev.server/wp-json/wp/v2/slides';
} else {
var slidesEndPoint = 'http://prod.server/wp-json/wp/v2/slides';
}
export function getSlides() {
return dispatch => {
dispatch(setLoadingState()); // Show a loading spinner
axios.get(slidesEndPoint)
.then(function (response) {
dispatch(setSlides(response.data))
dispatch(doneFetchingData(response.data))
})
/*.error((response) => {
dispatch(showError(response.data))
})*/
}
}
function setSlides(data) {
return {
type: types.SLIDES_SUCCESS,
slides: data
}
}
function setLoadingState() {
return {
type: types.SHOW_SPINNER,
loaded: false
}
}
function doneFetchingData(data) {
return {
type: types.HIDE_SPINNER,
loaded: true,
slides: data
}
}
function showError() {
return {
type: types.SHOW_ERROR,
loaded: false,
error: 'error'
}
}