I keep getting this error when attempting to update a component with new data fetched from a server.
Description:
Portfolio.js
I have an app that has a portfolio where the projects of the site are shown. When you click an item in portfolio, you are redirected (with react-router) to the individual project.
Project.js
The project component uses the fetch api to retrieve data from a server. Which works perfectly because when the url specifies the project to be show like:
/portfolio/project/:id, and based on the id received the data is fetched and displayed correctly.The data retrieved
What is retrieved trough fetch api is just the result of a AJAX POST request to a server with the only parameter of the project id, which only returns the info of the project. (name, description, images, and other ones not much important)
The issue:
As far I've analyzed the application to see when this error is triggered, I found that this warning comes out when the amount of images for the new project loaded is smaller than the amount of images of the project already rendered.
An example:
We are inside a project. The url is portfolio/project/1 and the server data returned that this project has 5 images. They are loaded and you can view the project correctly.
Now, we use the menu to react-router-redirect to portfolio/project/2 and the server returned data with 7 images. They are loaded and the project data as well to view the project.
So, let say that we choose the option in the menu to view the project portfolio/project/3 which has 3 images, and then the warning comes up.
Browser:
Console log:
The code:
Since the error says the problem is inside Project.js, I am only adding this code so the question doesn't look overloaded and full of weird code.
Project.js
import React,{Component} from 'react'
import Footer from '../Footer/Footer'
import Header from '../Header'
import SubNav from '../SubNav'
import Details from './Details'
import {Link} from 'react-router-dom'
import {Configurations} from '../AppConfig'
class Project extends Component{
state = {
projectInfo: null,
reloadHandlerActive: false,
projectID : this.props.match.params.id,
projectName: "",
topProjectInfo: [],
images: []
}
createImages = (project) =>{
let Images = Object.values(project.images),
ImagesURI = Images.map((img, index)=>{
if( img.includes('Desarrollos.jpg') || img.includes('Home.jpg') || img.includes('H.jpg') ){
return null
}
return project.path+img
})
ImagesURI = ImagesURI.filter(function (e) { //Clear null values
return e != null;
})
return ImagesURI
}
reloadHandler = (id) =>{
const {createImages} = this
fetch(Configurations.API.projectInfo(id))
.then((result)=>{return result.json() })
.then((project)=>{
if(project === "error"){
alert("Error")
}else{
this.setState({
projectInfo: project,
images: createImages(project)
},function(){
document.getElementsByClassName("nav-button")[0].click()
})
}
})
}
componentWillMount(){
const {createImages} = this
fetch(Configurations.API.projectInfo(this.state.projectID))
.then((result)=>{return result.json() })
.then((project)=>{
if(project === "error"){
alert("Error")
}else{
this.setState({
projectInfo: project,
images: createImages(project)
},function(){
window.initDogma()
})
}
})
}
componentDidMount(){
window.onload = window.initShit()
}
render(){
const {projectInfo,images} = this.state
console.log(projectInfo)
if(!projectInfo){
return(<h1>. . .</h1>)
}
return(
<div >
<Header />
<SubNav reloadHandler={this.reloadHandler} />
<div className="content full-height no-padding">
<div className="fixed-info-container">
<Link to="/portfolio"><button className="goBackBtn">Desarrollos</button></Link>
<h3>{projectInfo.project.project}</h3>
<div className="separator" />
<div className="clearfix" />
<p>
{projectInfo.project.address}
</p>
<span className="project-status">{projectInfo.project.status}</span>
<h4>Características</h4>
<Details price={projectInfo.project.price} features={projectInfo.project.features} />
<Link className=" btn anim-button trans-btn transition fl-l" to={"/contact/?project="+projectInfo.id}>
<span>Informes</span>
<i className="fa fa-eye" />
</Link>
</div>
{/* fixed-info-container end*/}
{/* resize-carousel-holder*/}
<div className="resize-carousel-holder vis-info gallery-horizontal-holder">
{/* gallery_horizontal*/}
<div
id="gallery_horizontal"
className="gallery_horizontal owl_carousel"
>
{
images.map((img,index)=>{
return (
<div key={index}className="horizontal_item">
<div className="zoomimage">
<img src={img} className="intense" alt="" />
<i className="fa fa-expand" />
</div>
<img src={img} alt="" />
<div className="show-info">
<span>Info</span>
<div className="tooltip-info">
<h5>Imagen de muestra</h5>
<p>
Imagen del desarrollo
</p>
</div>
</div>
</div>
)
})
}
</div>
{/* resize-carousel-holder*/}
{/* navigation */}
<div className="customNavigation">
<a href="/" className="prev-slide transition">
<i className="fa fa-angle-left" />
</a>
<a href="/" className="next-slide transition">
<i className="fa fa-angle-right" />
</a>
</div>
{/* navigation end*/}
</div>
{/* gallery_horizontal end*/}
</div>
<Footer />
</div>
)
}
}
export default Project
I'm currently looking how to fix this, but if someone could give me an advice or the origin of the issue would be really helpful.
