I have a problem that children component does not update hidden status when project is selected, it should then display all the the tasks included in selected projects. How ever when getTasks is done and it updates hidden state to false and it passes state to children component props but children component never reintialize select component and remains hidden. What I need to change to make my selectbox class RtSelect to display hidden state changes?
My master component:
import React, { useState, useEffect, useRef } from 'react';
import RtSelect from './RtSelect';
import api, { route } from "#forge/api";
function Projects() {
const projRef = useRef();
const taskRef = useRef();
const [projects, setProjects] = useState(undefined)
const [tasks, setTasks] = useState(undefined)
const [projectid, setProjectid] = useState(undefined)
const [taskid, setTaskid] = useState(undefined)
const [hidden, setHidden] = useState(true)
//haetaan atlasiansita projectit array
useEffect(() => {
let loadedProject = true;
// declare the async data fetching function
const fetchProjects = async () => {
// get the data from the api
const response = await api.asUser().requestJira(route`/rest/api/3/project`, {
headers: {
'Accept': 'application/json'
}
});
const data = await response.json();
//Mapataa hausta tarvittavat tiedot
const result = data.map(function (item) {
console.log('test');
return [
{
label: item.name,
value: item.id,
avatar: item.avatarUrls['16x16']
}
]
})
// set state with the result if `isSubscribed` is true
if (loadedProject) {
setProjects(result);
}
}
//asetetaan state selectbox muutokselle
// call the function
fetchProjects()
// make sure to catch any error
.catch(console.error);;
// cancel any future `setData`
return () => loadedProject = false;
}, [param])
const getTasks = async (p) => {
// get the data from the api
const response = await api.asUser().requestJira(route`/rest/api/3/issuetype/project?projectId={p}`, {
headers: {
'Accept': 'application/json'
}
});
const data = await response.json();
//Mapataa hausta tarvittavat tiedot
const result = data.map(function (item) {
console.log('test');
return [
{
value: item.id,
label: item.description,
avatar: item.iconUrl
}
]
})
setTasks(result)
setHidden(false)
}
useEffect(() => {
projRef.current.addEventListener("onChange", (e) => {
setProjectid(e.target.value)
console.log("Project select boxin arvo on: " + e.target.value);
getTasks(projectid)
});
});
useEffect(() => {
taskRef.current.addEventListener("onChange", (e) => {
setTaskid(e.target.value)
console.log("Select task boxin arvo on: " + e.target.value);
});
});
return (
<div>
<div className='projects'>
<RtSelect info="Choose project:" options={projects} hidden={false} ref={projRef} />
</div>
<div className='tasks'>
<RtSelect info="Choose Task:" options={tasks} hidden={hidden} ref={taskRef} />
</div>
</div>
);
}
export default Projects
Here is my RtSelect class code:
import React from "react";
import Select from "react-select";
class RtSelect extends React.Component {
state = {
info: this.props.info,
options: this.props.options,
hidden: this.props.hidden,
menuIsOpen: '',
menuWidth: "",
IsCalculatingWidth: ''
};
constructor(props) {
super(props);
this.selectRef = props.ref
this.onMenuOpen = this.onMenuOpen.bind(this);
this.setData = this.setData.bind(this);
}
componentDidMount() {
if (!this.state.menuWidth && !this.state.isCalculatingWidth) {
setTimeout(() => {
this.setState({IsCalculatingWidth: true});
// setIsOpen doesn't trigger onOpenMenu, so calling internal method
this.selectRef.current.select.openMenu();
this.setState({menuIsOpen: true});
}, 1);
}
}
onMenuOpen() {
if (!this.state.menuWidth && this.state.IsCalculatingWidth) {
setTimeout(() => {
const width = this.selectRef.current.select.menuListRef.getBoundingClientRect()
.width;
this.setState({menuWidth: width});
this.setState({IsCalculatingWidth: false});
// setting isMenuOpen to undefined and closing menu
this.selectRef.current.select.onMenuClose();
this.setState({menuIsOpen: undefined});
}, 1);
}
}
styles = {
menu: (css) => ({
...css,
width: "auto",
...(this.state.IsCalculatingWidth && { height: 0, visibility: "hidden" })
}),
control: (css) => ({ ...css, display: "inline-flex " }),
valueContainer: (css) => ({
...css,
...(this.state.menuWidth && { width: this.state.menuWidth })
})
};
setData (props) {
if (props.info) {
this.setState({
info: props.info
})
}
if (props.options) {
this.setState({
options: props.options
})
}
if (props.hidden) {
this.setState({
hidden: props.hidden
})
}
}
render () {
return (
<div style={{ display: "flex" }}>
<div style={{ margin: "8px" }}>{this.state.info}</div>
<div style={{minWidth: "200px"}}>
<Select
ref={this.selectRef}
onMenuOpen={this.onMenuOpen}
options={this.state.options}
menuIsOpen={this.state.menuIsOpen}
styles={this.styles}
isDisabled={this.state.hidden}
formatOptionLabel={(options) => (
<div className="select-option" style={{ display: "flex", menuWidth: "200px"}}>
<div style={{ display: "inline", verticalAlign: "center" }}>
<img src={options.avatar} width="30px" alt="Avatar" />
</div>
<div style={{ display: "inline", marginLeft: "10px" }}>
<span>{options.label}</span>
</div>
</div>
)}
/>
</div>
</div>
);
}
}
export default RtSelect;
Ok I found from other examples that I can use the ref to acces child method so here is they way to update component:
useEffect(() => {
projRef.current.addEventListener("onChange", (e) => {
setProjectid(e.target.value)
console.log("Project select boxin arvo on: " + e.target.value);
getTasks(projectid)
//Using RtSelect taskRef to locate children component method to update component
taskRef.current.setData({hidden: false})
});
});
Related
I have a simple React component and inside of it I am fetching data from a remote API, and I want to console.log it in useEffect. I am trying to do it but nothing doesn't get logged into the console, why? What am I missing here? Here is the component:
import React, { useState, useEffect } from 'react';
import { useLocalization } from '#progress/kendo-react-intl';
import { Card, CardHeader, Avatar, CardTitle, CardSubtitle } from '#progress/kendo-react-layout';
import { guid } from '#progress/kendo-react-common';
import { Scheduler } from './../components/Scheduler';
import { employees } from './../resources/employees';
import { images } from './../resources/images';
import { orders, ordersModelFields } from './../resources/orders';
import { teams } from './../resources/teams';
// const orderEmployees = employees.filter(employee => employee.jobTitle === 'Sales Representative');
// const initialFilterState = { };
// orderEmployees.forEach(employee => {
// if(employee.fullName === 'Wait Peperell') {
// initialFilterState[employee.id] = false;
// } else {
// initialFilterState[employee.id] = true;
// }
// });
const Planning = () => {
const localizationService = useLocalization();
const [filterState, setFilterState] = React.useState(initialFilterState);
const [data, setData] = React.useState(orders);
const [fetchedData, setFetchedData] = React.useState(null);
useEffect(() => {
fetch("https://mocki.io/v1/29b83c0b-1a55-430d-a173-92b3632e04aa")
.then(response => response.json())
// 4. Setting *dogImage* to the image url that we received from the response above
.then(data => setFetchedData(data))
console.log(fetchedData)
},[])
// console.log(fetchedData)
const onDataChange = React.useCallback(
({ created, updated, deleted }) => {
setData(old => old
// Filter the deleted items
.filter((item) => deleted.find(current => current[ordersModelFields.id] === item[ordersModelFields.id]) === undefined)
// Find and replace the updated items
.map((item) => updated.find(current => current[ordersModelFields.id] === item[ordersModelFields.id]) || item)
// Add the newly created items and assign an `id`.
.concat(created.map((item) => Object.assign({}, item, { [ordersModelFields.id]: guid() }))))
},
[]
);
const onEmployeeClick = React.useCallback(
(employeeId) => {
setFilterState({
...filterState,
[employeeId]: !filterState[employeeId]
});
},
[filterState, setFilterState]
);
return (
<div id="Planning" className="planning-page main-content">
<div className="card-container grid">
<h3 className="card-title">{localizationService.toLanguageString('custom.teamCalendar')}</h3>
{
orderEmployees.map(employee => {
return (
<div
key={employee.id}
onClick={() => onEmployeeClick(employee.id)}
style={!filterState[employee.id] ? {opacity: .5} : {}}
>
<Card style={{ borderWidth: 0, cursor: 'pointer'}}>
<CardHeader className="k-hbox" >
<Avatar type='image' shape='circle' size={'large'} style={{
borderWidth: 2,
borderColor: teams.find(({teamID}) => teamID === employee.teamId).teamColor,
}}>
<div className="k-avatar-image" style={{
backgroundImage: images[employee.imgId + employee.gender],
backgroundSize: 'cover',
backgroundPosition: 'center center',
}}
/>
</Avatar>
<div>
<CardTitle style={{color: teams.find(({teamID}) => teamID === employee.teamId).teamColor}}>{employee.fullName}</CardTitle>
<CardSubtitle>{employee.jobTitle}</CardSubtitle>
</div>
</CardHeader>
</Card>
</div>
);
})
}
<div className="card-component" >
<Scheduler
data={data.filter(event => filterState[event.employeeID])}
onDataChange={onDataChange}
modelFields={ordersModelFields}
resources={[
{
name: 'Teams',
data: teams,
field: 'teamID',
valueField: 'teamID',
textField: 'teamName',
colorField: 'teamColor'
}
]}
/>
</div>
</div>
</div>
);
}
export default Planning;
I also tried to place the console.log outside of useEffect but still, nothing gets console.logged.
You need to look how useEffect work, setFetchedData is async.
Create another useEffect only for console.log.
useEffect(() => {
console.log(fetchedData);
},[fetchedData]); // Update at the first render + when fetchedData state change.
You can do it like this
useEffect(() => {
fetch("https://mocki.io/v1/29b83c0b-1a55-430d-a173-92b3632e04aa")
.then((response) => response.json())
// 4. Setting *dogImage* to the image url that we received from the response above
.then((data) => {
setFetchedData(data);
console.log(data);
});
}, []);
or juste create another useEffect that listens to fetchedData change, like this
useEffect(() => {
console.log(fetchedData);
}, [fetchedData]);
I am trying to change this class based react component to a functional component but i am gettig an infinite loop issue on setting the reference, i think its because of on each render the ref is a new object.
How could i convert the class based component to a functional component
index-class.js - Ref
class Collapse extends React.Component {
constructor(props) {
super(props);
this.state = {
showContent: false,
height: "0px",
myRef: null,
};
}
componentDidUpdate = (prevProps, prevState) => {
if (prevState.height === "auto" && this.state.height !== "auto") {
setTimeout(() => this.setState({ height: "0px" }), 1);
}
}
setInnerRef = (ref) => this.setState({ myRef: ref });
toggleOpenClose = () => this.setState({
showContent: !this.state.showContent,
height: this.state.myRef.scrollHeight,
});
updateAfterTransition = () => {
if (this.state.showContent) {
this.setState({ height: "auto" });
}
};
render() {
const { title, children } = this.props;
return (
<div>
<h2 onClick={() => this.toggleOpenClose()}>
Example
</h2>
<div
ref={this.setInnerRef}
onTransitionEnd={() => this.updateAfterTransition()}
style={{
height: this.state.height,
overflow: "hidden",
transition: "height 250ms linear 0s",
}}
>
{children}
</div>
</div>
);
}
}
what i have tried so far.
index-functional.js
import React, { useEffect, useState } from "react";
import { usePrevious } from "./usePrevious";
const Collapse = (props) => {
const { title, children } = props || {};
const [state, setState] = useState({
showContent: false,
height: "0px",
myRef: null
});
const previousHeight = usePrevious(state.height);
useEffect(() => {
if (previousHeight === "auto" && state.height !== "auto") {
setTimeout(
() => setState((prevState) => ({ ...prevState, height: "0px" })),
1
);
}
}, [previousHeight, state.height]);
const setInnerRef = (ref) =>
setState((prevState) => ({ ...prevState, myRef: ref }));
const toggleOpenClose = () =>
setState((prevState) => ({
...prevState,
showContent: !state.showContent,
height: state.myRef.scrollHeight
}));
const updateAfterTransition = () => {
if (state.showContent) {
this.setState((prevState) => ({ ...prevState, height: "auto" }));
}
};
return (
<div>
<h2 onClick={toggleOpenClose}>{title}</h2>
<div
ref={setInnerRef}
onTransitionEnd={updateAfterTransition}
style={{
height: state.height,
overflow: "hidden",
transition: "height 250ms linear 0s"
}}
>
{children}
</div>
</div>
);
};
usePrevious.js - Link
import { useRef, useEffect } from "react";
function usePrevious(value) {
const ref = useRef();
useEffect(() => {
ref.current = value;
}, [value]);
return ref.current;
}
export { usePrevious };
The problem here is you set your reference to update through setState and useEffect (which is what causes you the infinite loop).
The way you would go by setting references on functional components would be as followed:
const Component = () => {
const ref = useRef(null)
return (
<div ref={ref} />
)
}
More info can be found here: https://reactjs.org/docs/refs-and-the-dom.html
I want to have a button submiting to stripe a specific quantity, based on an input that can be changed by typing or clicking an increment/decrease button. I have the increment/decrease functions on an higher order component but i am unable to submit it to the button of stripe (child from my understanding)
Relevant code below:
withCheckout (HOC):
import React from "react"
const UpdatedComponent = (OriginalComponent) => {
class NewComponent extends React.Component {
constructor(props) {
super(props)
this.state = {
count: 1
}
this.handleChange = this.handleChange.bind(this)
}
increment = () => {
this.setState(prevState => {
return { count: prevState.count + 1}
})
}
decrease = () => {
this.setState(prevState => {
return { count: prevState.count - 1 }
})
}
handleChange(event) {
this.setState({
count: parseInt(event.target.value)
});
}
render() {
return <OriginalComponent count={this.state.count} increment={this.increment} decrease={this.decrease} handleChange={this.handleChange} />
}
}
return NewComponent
}
export default UpdatedComponent
Checkout:
import React, { useState } from "react"
import { loadStripe } from "#stripe/stripe-js"
import UpdatedComponent from "./withCheckout"
const buttonStyles = {
fontSize: "13px",
textAlign: "center",
color: "#000",
padding: "12px 60px",
boxShadow: "2px 5px 10px rgba(0,0,0,.1)",
backgroundColor: "rgb(255, 178, 56)",
borderRadius: "6px",
letterSpacing: "0.2ch",
display: "block",
margin: "1.5em auto 1.5em auto",
}
const buttonDisabledStyles = {
opacity: "0.5",
cursor: "not-allowed",
}
let stripePromise
const getStripe = () => {
if (!stripePromise) {
stripePromise = loadStripe("KEY_HERE")
}
return stripePromise
}
const Checkout = props => {
const [loading, setLoading] = useState(false)
const redirectToCheckout = async event => {
event.preventDefault()
setLoading(true)
const stripe = await getStripe()
const { error } = await stripe.redirectToCheckout({
mode: "payment",
lineItems: [{ price: "PRICE_ID_HERE", quantity: props.count }],
successUrl: `http://localhost:8000/page-2/`,
cancelUrl: `http://localhost:8000/`,
shippingAddressCollection: {
allowedCountries: ['PT'],
}
})
if (error) {
console.warn("Error:", error)
setLoading(false)
}
}
return (
<button
disabled={loading}
style={
loading ? { ...buttonStyles, ...buttonDisabledStyles } : buttonStyles
}
onClick={redirectToCheckout}
>
Comprar {props.count}
</button>
)
}
export default UpdatedComponent(Checkout)
Example:
See this image
When I change the input to 7, I expect the button text to be "Comprar 7" and I expect to submit quantity: 7 in the striperedirect function. I think the problem has to do with the way props are set, as my Counter is working well the props were passed as const {count} = this.props. Should I add the Counter.js code as well?
I am trying to figure out how to create a clean up function as I keep getting an error, if I remove "comments" from the useEffect dependencies, the error goes away, but then the app doesn't update in realtime, which is a problem. If anyone has worked with React and the realtime database or even Firestore and have any ideas on what I should do please let me know.
import React, { useContext, useEffect, useState } from 'react';
import { useForm } from 'react-hook-form';
import { toast } from 'react-toastify';
import User from '../assets/images/user.svg';
import { AuthContext } from '../helpers/firebaseAuth';
import firebase from '../helpers/Firebase';
import Loading from '../helpers/Loading';
export const Comments = ({ match, history }) => {
const { register, handleSubmit, reset } = useForm();
const slug = match.params.slug;
const {...currentUser} = useContext(AuthContext);
const [comments, setComments] = useState([]);
const [loading, setLoading] = useState(true);
useEffect(() => {
const fetchData = () => {
const data = firebase.database().ref(`/posts/${slug}/comments`)
data.once('value')
.then((snapshot) => {
if (snapshot) {
let comments = [];
const snapshotVal = snapshot.val();
for (let comment in snapshotVal) {
comments.push(snapshotVal[comment]);
}
setComments(comments);
setLoading(false);
}
});
}
fetchData();
}, [slug, comments])
if (loading) {
return <Loading />;
};
const postComment = (values) => {
console.log(!!currentUser.currentUser)
if (!!currentUser.currentUser) {
const comment = {
commentText: values.commentText,
commentCreator: currentUser.currentUser.displayName,
currentUserId: currentUser.currentUser.uid,
}
const postRef = firebase.database().ref(`posts/${slug}/comments`);
postRef.push(comment);
reset();
} else {
toast.error('You are not authenticated 😕');
}
};
const deleteComment = () => {
console.log(comments[0].commentUserId);
console.log(currentUser.currentUser.uid);
if (currentUser.currentUser.uid === comments[0].commentUserId) {
console.log('correct');
}
const key = firebase.database().ref(`posts/${slug}/comments`).once('value');
key.then(snapshot => {
console.log(snapshot.val());
}).catch((error) => {
console.log(error);
});
};
const back = () => {
history.push('./');
};
return (
<div className='main' style={{ maxWidth: '600px' }}>
<div className='see-user-comments' onClick={back} style={{ cursor: 'pointer', height: '50px' }}>
Commenting on the post: {slug}
</div>
<div className='see-user-comments' style={{ padding: '10px 0' }}>
<div>
<img src={User} alt='Profile' style={{ width: '30px' }} />
<span className='usertag-span'>{currentUser.displayName}</span>
</div>
<div>
<form onSubmit={handleSubmit(postComment)}>
<textarea
name='commentText'
rows='3'
style={{ margin: '10px 0' }}
placeholder='Add to the conversation!'
ref={register}
/>
<span style={{ width: '90%' }}>
<button>Comment</button>
</span>
</form>
</div>
</div>
{comments.map((comment, index) =>
<div key={index} className='see-user-comments' style={{ padding: '15px 0' }}>
<div style={{ height: '30px' }}>
<img src={User} alt='Profile' style={{ width: '30px' }} />
<div style={{ flexDirection: 'column', alignItems: 'flex-start', justifyItems: 'center' }}>
<span className='usertag-span'>{comment.commentCreator}</span>
</div>
</div>
<span className='commentText-span'>{comment.commentText}
{ !!currentUser?.currentUser?.uid === comments[0].commentUserId ?
(<button onClick={deleteComment}>Delete</button>) : null
}
</span>
</div>
)}
</div>
)
}
export default Comments;
Without seeing the error in question, I can only assume it's because using the following pattern causes an infinite loop because the effect is re-triggered every time count changes:
const [count, setCount] = useState(0);
useEffect(() => setCount(count + 1), [count]);
When you add comments to your effect, you are doing the same thing.
To solve this, you must change your effect to rely on Firebase's realtime events to update your comments array instead. This can be as simple as changing once('value').then((snap) => {...}) to on('value', (snap) => {...});. Because this is now a realtime listener, you must also return a function that unsubscribes the listener from inside your useEffect call. The least amount of code to do this correctly is:
const [postId, setPostId] = useState('post001');
useEffect(() => {
const postRef = firebase.database().ref('posts').child(postId);
const listener = postRef.on(
'value',
postSnapshot => {
const postData = postSnapshot.val();
// ... update UI ...
},
err => {
console.log('Failed to get post', err);
// ... update UI ...
}
)
return () => postRef.off('value', listener);
}, [postId]);
Applying these changes to your code (as well as some QoL improvements) yields:
const { register, handleSubmit, reset } = useForm();
const slug = match.params.slug;
const { ...authContext } = useContext(AuthContext); // renamed: currentUser -> authContext (misleading & ambiguous)
const [comments, setComments] = useState([]);
const [loading, setLoading] = useState(true);
let _postCommentHandler, _deleteCommentHandler;
useEffect(() => {
// don't call this data - it's not the data but a reference to it - always call it `somethingRef` instead
const postCommentsRef = firebase.database().ref(`/posts/${slug}/comments`);
// create realtime listener
const listener = postCommentsRef.on(
'value',
querySnapshot => {
let _comments = [];
querySnapshot.forEach(commentSnapshot => {
const thisComment = commentSnapshot.val();
thisComment.key = commentSnapshot.key; // store the key for delete/edit operations
_comments.push(thisComment);
});
setComments(_comments);
setLoading(false);
},
err => {
console.log(`Error whilst getting comments for post #${slug}`, err);
// TODO: handle error
});
// update new comment handler
_postCommentHandler = (formData) => {
console.log({
isLoggedIn: !!authContext.currentUser
});
if (!authContext.currentUser) {
toast.error('You are not authenticated 😕');
return;
}
const newComment = {
commentText: formData.commentText, // suggested: commentText -> content
commentCreator: authContext.currentUser.displayName, // suggested: commentCreator -> author
currentUserId: authContext.currentUser.uid, // suggested: commentUserId -> authorId
}
postCommentsRef.push(newComment)
.then(() => {
// commented successfully
reset(); // reset form completely
})
.catch(err => {
console.log(`Error whilst posting new comment`, err);
// TODO: handle error
reset({ commentText: formData.commentText }) // reset form, but leave comment as-is
})
}
// update delete handler
_deleteCommentHandler = () => {
if (!comments || !comments[0]) {
console.log('Nothing to delete');
return;
}
const commentToDelete = comments[0];
console.log({
commentUserId: commentToDelete.commentUserId,
currentUser: authContext.currentUser.uid
});
if (authContext.currentUser.uid !== commentToDelete.commentUserId) {
toast.error('That\'s not your comment to delete!');
return;
}
postCommentsRef.child(commentToDelete.key)
.remove()
.then(() => {
// deleted successfully
})
.catch(err => {
console.log(`Error whilst deleting comment #${commentToDelete.key}`, err);
// TODO: handle error
});
};
// return listener cleanup function
return () => postCommentsRef.off('value', listener);
}, [slug]);
const postComment = (values) => _postCommentHandler(values);
const deleteComment = () => _deleteCommentHandler();
Because I renamed currentUser to authContext, this will also need updating:
<div>
<img src={User} alt='Profile' style={{ width: '30px' }} />
<span className='usertag-span'>{authContext?.currentUser?.displayName}</span>
</div>
I'am using react autosuggest npm package to get the json data and display it. I want to display only 5 items. How to do it?
Form.js
import React from 'react'
import Autosuggest from 'react-autosuggest';
import cities from 'cities.json';
const getSuggestions = value => {
const inputValue = value.trim().toLowerCase();
const inputLength = inputValue.length;
// Here I get data from cities.json
return inputLength === 0 ? [] : cities.filter(lang =>
lang.name.toLowerCase().slice(0, inputLength) === inputValue
);
);
};
const getSuggestionValue = suggestion => suggestion.name;
const renderSuggestion = suggestion => (
<div>
{console.log('suggestion', suggestion)}
{suggestion.name}
</div>
);
class Form extends React.Component {
constructor() {
super();
this.state = {
value: '',
suggestions: []
};
}
onChange = (event, { newValue }) => {
this.setState({
value: newValue
});
};
onSuggestionsFetchRequested = ({ value }) => {
this.setState({
suggestions: getSuggestions(value)
});
};
onSuggestionsClearRequested = () => {
this.setState({
suggestions: []
});
};
render(){
const { value, suggestions } = this.state;
// Autosuggest will pass through all these props to the input.
const inputProps = {
placeholder: 'Search City...',
value,
onChange: this.onChange
};
return (
<div>
<Autosuggest
suggestions={suggestions}
onSuggestionsFetchRequested={this.onSuggestionsFetchRequested}
onSuggestionsClearRequested={this.onSuggestionsClearRequested}
getSuggestionValue={getSuggestionValue}
renderSuggestion={renderSuggestion}
inputProps={inputProps}
/>
<br/>
</div>
)
}
}
export default Form;
I want to render only 5 items, otherwise, computer hangs while loading huge data. Is there any other autocomplete react npm package, since I want only cities and country list. i.e when city is inputted, automatically the city name must be suggested with its relevant country.Any solution or suggestion highly appreciated. Thanks in advance
i modified you're getSuggestions() method a little i guess this should work for you.
const getSuggestions = value => {
const inputValue = value.trim().toLowerCase();
const inputLength = inputValue.length;
// Here I get data from cities.json
return inputLength === 0 ? [] : cities.filter(lang =>
lang.name.toLowerCase().slice(0, inputLength) === inputValue
).slice(0,5);
};
Use the Slice method with start index and last Index
suggestions={suggestions.slice(0, 5)}
import {
React
,Avatar
,axiosbase
} from '../../import-files';
import Autosuggest from 'react-autosuggest';
import './autosuggest.css';
import { withStyles } from '#material-ui/core/styles';
import TextField from '#material-ui/core/TextField';
import Paper from '#material-ui/core/Paper';
import MenuItem from '#material-ui/core/MenuItem';
let suggestions = [ { label: 'Afghanistan' } ];
function renderInputComponent(inputProps) {
const { classes, inputRef = () => {}, ref, ...other } = inputProps;
return (
<TextField
className={classes.textField}
fullWidth
variant="outlined"
InputProps={{
inputRef: node => {
ref(node);
inputRef(node);
},
classes: {
input: classes.input,
},
}}
{...other}
/>
);
}
function renderSuggestion(suggestion, { query, isHighlighted }) {
return (
<MenuItem selected={isHighlighted} component="div">
<div>
<strong key={String(suggestion.id)} style={{ fontWeight: 300 }}>
<span className="sugg-option">
<span className="icon-wrap">
<Avatar src={suggestion.Poster}></Avatar>
</span>
<span className="name">
{suggestion.Title}
</span>
</span>
</strong>
</div>
</MenuItem>
);
}
function initSuggestions(value) {
suggestions = value;
}
function getSuggestionValue(suggestion) {
return suggestion.Title;
}
function onSuggestionSelected(event, { suggestion, suggestionValue, suggestionIndex, sectionIndex, method }) {
console.log('HandleSuggestion() '+suggestionValue);
}
const styles = theme => ({
root: {
height: 50,
flexGrow: 1,
},
container: {
position: 'relative',
},
suggestionsContainerOpen: {
position: 'absolute',
zIndex: 998,
marginTop: theme.spacing.unit,
left: 0,
right: 0,
overflowY: 'scroll',
maxHeight:'376%'
},
suggestion: {
display: 'block',
},
suggestionsList: {
margin: 0,
padding: 0,
listStyleType: 'none',
},
divider: {
height: theme.spacing.unit * 2,
},
});
class IntegrationAutosuggest extends React.Component {
state = {
single: '',
popper: '',
suggestions: [],
};
componentDidMount() {
initSuggestions(suggestions);
}
// Filter logic
getSuggestions = async (value) => {
const inputValue = value.trim().toLowerCase();
var _filter = JSON.stringify({
filter : inputValue,
});
return await axiosbase.post(`${apiCall}`, _filter);
};
handleSuggestionsFetchRequested = ({ value }) => {
this.getSuggestions(value)
.then(data => {
if (data.Error) {
this.setState({
suggestions: []
});
} else {
const responseData = [];
data.data.itemsList.map((item, i) => {
let File = {
id: item.idEnc,
Title: item.englishFullName +' '+item.arabicFullName,
englishFullName: item.englishFullName,
arabicFullName: item.arabicFullName,
Poster: item.photoPath,
}
responseData.push(File);
});
this.setState({
suggestions: responseData
});
}
})
};
handleSuggestionsClearRequested = () => {
this.setState({
suggestions: [],
});
};
handleChange = name => (event, { newValue }) => {
this.setState({
[name]: newValue,
});
if(event.type=='click'){
if(typeof this.props.handleOrderUserFirstNameChange === "function"){
this.props.handleOrderUserFirstNameChange(newValue);
}
this.state.suggestions.filter(f=>f.Title===newValue).map((item, i) => {
//id
//Title
// Poster
if(typeof this.props.handleUserIDChange === "function"){
this.props.handleUserIDChange(item.id);
}
});
}
};
render() {
const { classes } = this.props;
// console.log('Re-render!!');
// console.log(this.props);
// console.log(this.state.suggestions);
const autosuggestProps = {
renderInputComponent,
suggestions: this.state.suggestions,
onSuggestionsFetchRequested: this.handleSuggestionsFetchRequested,
onSuggestionsClearRequested: this.handleSuggestionsClearRequested,
onSuggestionSelected: this.props.onSelect,
getSuggestionValue,
renderSuggestion,
};
return (
<div className={classes.root}>
<Autosuggest
{...autosuggestProps}
inputProps={{
classes,
placeholder: this.props.placeHolder,
value: this.state.single,
onChange: this.handleChange('single'),
}}
theme={{
container: classes.container,
suggestionsContainerOpen: classes.suggestionsContainerOpen,
suggestionsList: classes.suggestionsList,
suggestion: classes.suggestion,
}}
renderSuggestionsContainer={options => (
<Paper {...options.containerProps} square>
{options.children}
</Paper>
)}
/>
<div className={classes.divider} />
</div>
);
}
}
export default withStyles(styles)(IntegrationAutosuggest);