In my react app, I have 3 dropdown menus, the first selects a few properties with ascending and descending options, the second filter by hair color and the third filter by professions. However, depending on which dropdown i use first, the other 2 won't work afterwards unless i refresh the browser. The data is fetched from somewhere using axios and the dropdown menus are child components and props passed back as callback functions.
I think I need to reset the state for the other search criteria, have tried but that didn't work. I have also look up for solutions for multiple filters to work, but I don't seem to be able to apply to my problems.
Here is my initial state of component:
class HomePage extends Component {
constructor(props) {
super(props);
this.state = {
data: [],
imageIsLoaded: false,
orderBy: "",
order: "",
profession: "",
hairColor: "",
};
this.doOrderBy = this.doOrderBy.bind(this);
this.doOrder = this.doOrder.bind(this);
this.handleColor = this.handleColor.bind(this);
this.handlePro = this.handlePro.bind(this);
}
Here are the handlers
doOrderBy(e) {
const newOrderBy = e.target.value;
this.setState({
orderBy: newOrderBy,
});
}
doOrder(e) {
const newOrder = e.target.getAttribute("data-value");
this.setState({ order: newOrder });
}
doOrderBy is an array ["name", "age", weight"..] doOrder is ["asc", "desc"]
handleColor(e) {
const uniqueHairColor = [
...new Set(this.state.data.map(item => item.hair_color)),
];
const newColor = [...e.target.selectedOptions].map(opt => opt.value);
const newValue = newColor == " " ? uniqueHairColor : newColor;
this.setState({
hairColor: newValue,
});
}
handlePro(e) {
const newProfession = [...e.target.selectedOptions].map(opt =>
opt.value);
const allProfessions = this.state.data
.map(item => item.professions)
.flat(1);
const uniqueProfession = [...new Set(allProfessions)].sort();
const newValue = newProfession == " " ? uniqueProfession :
newProfession;
this.setState({
profession: newValue,
});
}
Here is the sorting logic:
render() {
const {data, imageIsLoaded, hairColor, orderBy, order, profession}
=this.state;
let sorted = data;
if (order) {
if (orderBy !== ("number of friends" && "number of professions"))
{ sorted = _.orderBy(sorted, item => {
return item[orderBy]}, order);
} else if (orderBy === "number of friends") {
sorted = _.orderBy(sorted, item => {
return item.friends.length},order);
} else {sorted = _.orderBy(sorted, item => {
return item.professions.length}, order);
}
} else if (hairColor) {
sorted = _.filter(sorted, item => _.includes(hairColor,
item.hair_color));
} else if (profession) {
sorted = _.filter(sorted, { professions: profession });
} else {
sorted = data;
}
here are the dropdown menus as components in the render:
<OrderMenu
doOrder={this.doOrder}
order={order}
orderBy={orderBy}
doOrderBy={this.doOrderBy}
placeholder="Select by..."
/>
<HairMenu
data={data}
handleHairInput={this.handleColor}
placeholder="Choose hair color..."
/>
<ProfessionMenu
data={data}
handleInputPro={this.handlePro}
placeholder="Choose profession..."
/>
and the data is rendered as
<AnimalCards sorted={sorted}/>
Ideally, I would like to have the filters working together, doing multiple filtering at the same time. But at the moment, when i use the first filter, the second or third won't work at all unless I refresh the browser. Any help to point out what and where I am missing would be great. Thanks.
import React, { Component, Fragment } from "react";
class AnimalCards extends Component {
render() {
const { sorted } = this.props;
const Jobless = <div>No profession to show</div>;
const NoFriends = <div>No friends to show</div>;
return (
<Fragment>
<div className="flip-card-container">
{sorted.map(animal => {
return (
<div className="flip-card" key={animal.id}>
<div className="flip-card-inner">
{/* ---------------START front ----------- */}
<div className="flip-card-front">
<div
className="flip-card-front-top"
style={{ backgroundColor: animal.hair_color }}
/>
<div className="img-container">
<img
className="img-circle"
src={animal.thumbnail}
alt={`${animal.name}`}
style={{ border: "5px solid white" }}
/>
</div>
<div className="flip-card-front-bottom">
<div className="name">{animal.name}</div>
<div className="attributes">
<div className="age-group">
<img
className="ageIcon"
src={require("../images/axe.png")}
alt="ageIcon"
/>
<div className="age">{animal.age + " "}
yrs</div>
</div>
<div className="weight-group">
<img
className="weightIcon"
src={require("../images/weight.png")}
alt="weightIcon"
/>
<div className="weight"> {animal.weight} kg
</div>
</div>
<div className="height-group">
<img
className="ageIcon"
src={require("../images/height.png")}
alt="heightIcon"
/>
<div className="height">{animal.height} cm
</div>
</div>
</div>
<div className="professions">
Number of professions:
<div className="professions-num">
{animal.professions.length === 0
? Jobless
: animal.professions.length}
</div>
</div>
<div className="friends">Number of friends:</div>
<div className="friends-num">
{animal.friends.length === 0
? NoFriends
: animal.friends.length}
</div>
</div>
</div>
{/* ------------START front ----------- */}
{/* ------------START back ------------- */}
<div className="flip-card-back">
<div className="back-container">
<div className="back-header">Professions</div>
<div className="back-list">
{animal.professions.length === 0
? Jobless
: animal.professions.join(", ")}
</div>
</div>
<div className="back-container">
<div className="back-header">Friends</div>
<div className="back-list">
{animal.friends.length === 0
? NoFriends
: animal.friends.join(", ")}
</div>
</div>
</div>
{/* -------------END back ------------- */}
</div>
</div>
);
})}
</div>
</Fragment>
);
}
}
export default AnimalCards;
Here is the data (in json) that i fetched:
fetchAnimals() {
const apiUrl =
"https://raw.githubusercontent.com/rrafols/
mobile_test/master/data.json";
axios.get(apiUrl).then(({ data }) => {
localStorage.setItem("data", data);
this.setState({
data: data.Brastlewark,
imageIsLoaded: true,
});
});
}
componentDidMount() {
this.fetchAnimals();
}
