I have a list that takes values from server and i want that whenever an item of the list gets clicked it will change a textarea text to the appropriate variable on the list,
I am getting the user using redux:
function ProfilePage() {
const dispatch = useDispatch();
const authObj = useSelector(state => state.auth);
const { user, token, expiredAt } = authObj;
I am generating the list like this:
<ul className="SentencesList">
{
user.approvedPatterns.map((el, i) => (
<div key={i}>
<li>{el.name || ''}</li>
<hr className="profilePageSentenceListHr" />
</div>
))
}
</ul>
And what i want is that when a li on the list get clicked i will take the appropriate value in the JSON object and show i
<textarea rows="5" cols="60" className="centerPageLargeInputBox" type="text" />
The JSON list looks like that:
const userList = [
{
_id: "1",
username: "****",
password: "*",
approvedPatterns:[
{
"name":"title 1",
"text":"some text"
},
{
"name":"title 2",
"text":"some text1"
},
{
"name":"title 3",
"text":"some text 2"
}
]
}
]
How can i accomplish that?
I am really lost.
I have created the demo here: https://stackblitz.com/edit/react-f5q3n8?file=src/App.js
So when anyone clicks on the li, the textarea will show the value of that li's text property.
Related
I'm new to react an am trying to create an app to use in my portfolio. Essentially the program is a menu that has access to different menus(json files: texas_pick.js, breakfast.js...), the program is meant to display the menu options in form of buttons, the buttons' details are retrieved from their respective json file. The problem that I am facing is that when making a click on a menu option the data of the last menu item is retrieved. I programmed the backend to only push the item's name and price to the database, and the frontend, to retrieve this data and display it on a table. The data retrieved is only the last button's and not any others. I believe the problem to possibly be within my button code. Any help/tips/recommendations you could give are greatly appreciated.
I clicked every menu item and only the data from the last one was retrieved
import React from 'react'
import {useEffect,useState} from 'react'
import axios from 'axios'
import Texas_Pick from '../../json_files/texas_pick.json'
import './Mid_Container.css'
function Mid_Container() {
const [items, setItems] = useState(Texas_Pick);
const [order, setOrder] = useState({
item: '',
cost: ''
})
const createOrder = () => {
axios
.post("http://localhost:5000/orders", order)
.then(res => {window.location.reload(false)})
.catch(err => console.error(err));
}
const item1 = items[0];
const item2 = items[1];
const item3 = items[2];
const item4 = items[3];
const item5 = items[4];
const item6 = items[5];
return (
<div className="Mid_Container">
<button
style={{backgroundImage: `url(${item1.image})`}}
value={order.item=item1.item,order.cost=item1.price}
onClick={createOrder}
>
<p id="pPrice">${item1.price}</p>
<p id="pItem" >{item1.item}</p>
</button>
<button
style={{backgroundImage: `url(${item2.image})`}}
value={order.item=item2.item,order.cost=item2.price}
onClick={createOrder}
>
<p id="pPrice">${item2.price}</p>
<p id="pItem" >{item2.item}</p>
</button>
<button
style={{backgroundImage: `url(${item3.image})`}}
value={order.item=item3.item,order.cost=item3.price}
onClick={createOrder}
>
<p id="pPrice">${item3.price}</p>
<p id="pItem" >{item3.item}</p>
</button>
<button
style={{backgroundImage: `url(${item4.image})`}}
value={order.item=item4.item,order.cost=item4.price}
onClick={createOrder}
>
<p id="pPrice">${item4.price}</p>
<p id="pItem" >{item4.item}</p>
</button>
</div>
)
}
export default Mid_Container
I think that you should have this approach:
function SomeComponent() {
// Mocking your datas
const [items, setItems] = React.useState([
{
price: "1",
item: "i am the first",
image: "image1.png",
},
{
price: "7",
item: "I am the second",
image: "image2.png",
},
{
price: "3",
item: "i am the third",
image: "image3.png",
},
]);
const [order, setOrder] = React.useState();
const [myResponse, setMyResponse] = React.useState();
const createOrder = (clickedItem) => {
setOrder(clickedItem);
console.log(clickedItem);
// axios
// .post("http://somewhere", clickedItem)
// .then((res) => {
// setMyResponse(res); // or setMyResponse(res.json());
// })
// .catch((err) => console.error(err));
};
console.log('Log selected order in render loop ==> ', order);
console.log('Log response in render loop ==> ', myResponse);
return (
<div>
<div className="Mid_Container">
{items.length && items.map((currItem, index) => {
return (
<button
key={index}
style={{ backgroundImage: `url(${currItem.image})` }}
onClick={() => createOrder(currItem)}
>
<p id="pPrice">${currItem.price}</p>
<p id="pItem">{currItem.item}</p>
</button>
);
})}
</div>
</div>
);
}
Mapping on your items with map function, and pass the current item to your onClickEvent.
I also think you don't need a value attribute on your buttons. It's also not the place to do operations like you do :)
You also don't have to reload the page in the "then" of your promise. React is made to do SPA (single page application), so in the "then", you can put some code like "setResult(myResponse)" to store in you component the new data you got from your API.
How to display different json files in the same view?
I have 3 json files:
{"streetAddress": "Kosterijland 20", "postalCode": 3980, "city:" : "Bunnik", "country" : "Netherlands" }
{"firstName": "Anna", "age": 39, "lastName:" : "Kowalski"}
{"test": "value", "test2": "value2"}
I want to have generic method that will display the files like this:
streetAdress: Kosterijland 20
postalCode: 3980
city: Bunnik
country: Netherlands
OR
firstName: Anna
age: 39
lastName: Kowalski
OR
test: value
tet2: value
How can I do that? I want to make it generic, so when I add another json file with different properties I dont have to change the code
myService.ts class for retrieving the data using http client:
private url5 ="./assets/temp-data/location-entity-test.json";
getEntityDetails(){
return this.http.get(this.url5, {responseType: 'text'});
}
component.html class for displaying the json:
<div *ngFor="let item of displayObjectKeys; let i = index">
{{ item }} - {{ displayObjectValues[i] }}
</div>
component.tsclass:
json: any;
displayObjectKeys = [];
displayObjectValues = [];
constructor(private linkedEntityVocabulariesService:
LinkedEntityVocabulariesService) { }
ngOnInit() {
this.linkedEntityVocabulariesService.getEntityDetails()
.subscribe(data=>this.json=data);
}
PS. I know that html page is fine but I dont know how to get the properties and values in ts file and I dont know if the http request is good for this type of operations. Please help me
You could preprocess the objects you want to display into arrays if keys and values and render them seperately.
dogObject = {"name": "woofy", "age": 42, "weight": "a ton"};
carObject = {"color": "red", "power":"1.31GW"};
displayObjectKeys = [];
displayObjectValues = [];
selectObjectToDisplay(selectedItemToDisplay) {
let item = null;
if(selectedItemToDisplay === car) {
item = carObject;
}
if(selectedItemToDisplay === dog) {
item = dogObject;
}
if(!item) {
return;
}
this.displayObjectKeys = Object.keys(item);
this.displayObjectValues = Object.values(item);
}
<button (click)="selectObjectToDisplay("dog")"></button>
<button (click)="selectObjectToDisplay("car")"></button>
now you have the keys and values extracted.
then you could do something like this:
<div *ngFor="let item of displayObjectKeys; let i = index">
{{ item }} - {{ displayObjectValues[i] }}
</div>
this should render the car props as
color - red
power - 1.31GW
And when the user switches the object to display, just call the selectObjectToDisplay() method and pass the new object inside.
BUT
this is very dirty and the properties will be rendered as they are defined.
I have a list of items where the title is a link to display a detailed view of the item. Click the title and it correctly goes to url + Id. In the Vue tolls the detail page retrieves the item with matching ID but as and array not an object and the template does not display any properties - what am I missing?
<script>
import axios from "axios";
export default {
name: "Report",
data() {
return {
report: {}
};
},
mounted: function() {
this.getReport();
},
methods: {
getReport() {
let uri = "http://localhost:5000/api/reports/" + this.$route.params.id;
axios.get(uri).then(response => {
this.report = response.data;
});
}
}
};
</script>
The template is so
<template>
<v-content>
<h1>report detail page</h1>
<p>content will go here</p>-
<h3>{{ report.month }}</h3>
<pre>{{ report._id }}</pre>
</v-content>
</template>
any comments appreciated
url + Id
It sounds like your issue is that you are receiving an array not an object.
You can pull out objects encapsulated inside arrays easily.
For example, if we had the following data:
var bus1 = {passengers:10, shift:1}
var busArr = [bus1]
which we can assert: busArr === [{passengers:10, shift:1}]
We could then pull out bus1 by referencing the index 0:
var bus1New = busArr[0]
If you want to avoid the data transformation and just output the structure you can consider a v-for in your template.
<p v-for="val in report">
_id: {{val._id}}
<br>
month: {{val.month}}
</p>
I have this in my algolia file for my jekyll site.
<script>
const search = instantsearch({
appId: '{{ site.algolia.application_id }}',
apiKey: '{{ site.algolia.search_only_api_key }}',
indexName: '{{ site.algolia.index_name }}',
searchParameters: {
restrictSearchableAttributes: [
'title',
'content'
],
facetFilters: ['type:post']
},
});
const hitTemplate = function(hit) {
let date = '';
if (hit.date) {
date = moment.unix(hit.date).format('L');
// date = moment.unix(hit.date).format('MMM Do YY');
modifiedDate = moment.unix(hit.last_modified_at).format('MMM Do YY');
}
const url = hit.url;
const title = hit._highlightResult.title.value;
const content = hit._highlightResult.html.value;
return `
<div class="post-list">
<span class="post-date-list-wrap">
<span class="post-date-list">${date}
<span class="post-title"> ${title} </span>
</span>
${content}
</div>
`;
}
const hitTemplateTrans = function(hit) {
let date = '';
if (hit.date) {
date = moment.unix(hit.date).format('MMM DD YYYY');
}
const url = hit.url;
const title = hit._highlightResult.title.value;
const content = hit._highlightResult.html.value;
return `
<div class="post-list">
<span class="post-date-list-wrap">
<span class="post-date-list">${date}
<span class="post-title"> ${title}</span>
</span>
</span>
</div>
`;
}
search.addWidget(
instantsearch.widgets.searchBox({
container: '#search-searchbar',
placeholder: 'search notes',
autofocus: true
})
);
search.addWidget(
instantsearch.widgets.hits({
container: '#search-hits',
templates: {
empty: 'No results',
item: hitTemplate
},
})
);
search.start();
</script>
Without typing anything in the search box I have the list of articles
with the excerpt, the short introduction of the article.
That's because I have ${content} to show the highlights when someone
types the search term.
That's fine and everything is working but... I don't want to show the contents of each item when the search box is empty.
If the search box is empty I would like to keep only the title and the date
but if the search box is not empty just show the title/date and the excerpt as it's usual.
It seems like an easy task but I'm stuck right now, I tried removed the content tag and put in the hit transformation function, but it doesn't work.
The instantsearch.js library has a function hook, called searchFunction, you can define when instanciating the library. That is called right before any search is performed. You can use it to check if the current query is empty or not, and adapt your layout based on this knowledge.
Here is a slightly edited script (irrelevant parts removed) that should let you do what you're looking for:
let additionalClass = '';
const search = instantsearch({
[…]
searchFunction: function(helper) {
if (helper.getState().query === '') {
additionalClass = 'post-item__empty-query';
} else {
additionalClass = '';
}
helper.search()
}
});
[…]
const hitTemplate = function(hit) {
return
`<div class="post-item ${additionalClass}">
[…]
</div>`
;
}
.post-item__empty-query .post-snippet {
display: none;
}
What it does is defining a global variable (additionalClass) that will be used in the hit template (added alongside item-post, at the root level).
Right before everysearch, we check if the query is empty. If so, we set additionalClass to item-post__empty_query. We also defined in CSS that when this class is applied, the content should be hidden.
All of that together makes the title + date displayed when no search is performed, and the content displayed only when an actual keyword is searched for.
Hope that helps,
Still trying to work with Dgrid (0.4) and dojo (1.10), I have now another issue with the selection.
My web page contain a Dialog opened when you click on a button.
Inside this dialog, we have the following code which display a grid with data coming from a database through a Json HTTP page. This is working fine, even sorting and query filtering.
What I want to do know is to allow the user to double click on a row, get the selected row Id contains in the first column to update the form in the main page. I use the dgrid/selection for this. However, it always return the last row of the grid instead of the one the user selected.
The selection code is based on this :
http://dgrid.io/tutorials/0.4/hello_dgrid/
Any idea?
Thanks
<script language="javascript">
require
(
[
"dojo/_base/declare",
"dojo/_base/array",
"dgrid/OnDemandList",
"dgrid/OnDemandGrid",
"dgrid/Keyboard",
"dgrid/Selection",
"dgrid/Editor",
"dgrid/extensions/ColumnHider",
"dstore/Memory",
"dstore/RequestMemory",
"dojo/_base/lang",
"dojo/dom-construct",
"dojo/dom",
"dojo/on",
"dojo/when",
"dojo/query",
"dojo/store/Observable",
"dstore/Rest",
"dojo/_base/Deferred",
"dojo/store/Cache",
"dojo/domReady!",
],
function(
declare, arrayUtil, OnDemandList, OnDemandGrid, Keyboard, Selection, Editor, ColumnHider, Memory, RequestMemory, lang, ObjectStore, dom, on, when, query, Observable, Rest, Deferred
){
var fform = dom.byId("filterForm");
var ContactColumns = [
{ label: "", field: "contact_id", hidden: true, unhidable: true},
{ label: "Company Name", field: "company_name", unhidable: true },
{ label: "Contact Name", field: "contact_name", unhidable: true },
{ label: "Email", field: "contact_email", unhidable: true }
];
var ContactGrid=declare([OnDemandGrid, Keyboard, Selection,ColumnHider]);
var contactlist = new Observable(new Rest({ target: './ajax.contactsLoader.php' }));
var selection = [];
window.contactgrid = new ContactGrid(
{
className: "dgrid-selectors",
collection: contactlist,
maxRowsPerPage:10,
selectionMode: 'single',
cellNavigation: false,
columns: ContactColumns
}, "contacttable"
);
on(fform, "submit", function (event) {
var cpy_filter = fform.elements.fcompany_name.value;
var ct_filter = fform.elements.fcontact_name.value;
var email_filter = fform.elements.fcontact_email.value;
contactgrid.set('collection',contactlist.filter({contact_name: ct_filter, company_name: cpy_filter, contact_email: email_filter }));
contactgrid.refresh();
event.preventDefault();
});
contactgrid.on('dgrid-select', function (event) {
// Report the item from the selected row to the console.
console.log('Row selected: ', event.rows[0].data);
});
contactgrid.on('dgrid-deselect', function (event) {
console.log('Row de-selected: ', event.rows[0].data);
});
contactgrid.on('.dgrid-row:click', function (event) {
var row = contactgrid.row(event);
console.log('Row clicked:', row.data);
});
}
);
</script>
<div class="dijitDialogPaneContentArea" style="width:96%;margin-left:5px">
<form id="filterForm">
<div class="dijitDialogPaneActionBar" >
<button data-dojo-type="dijit.form.Button" type="submit">Filter</button>
<button
data-dojo-type="dijit.form.Button"
data-dojo-attach-point="submitButton"
type="submit"
>
Select
</button>
<button
data-dojo-type="dijit.form.Button"
data-dojo-attach-point="cancelButton"
>
Close
</button>
</div>
<div data-dojo-attach-point="contentNode" >
<input type="text" data-dojo-type="dijit.form.TextBox" name="fcompany_name" id="fcompany_name" style="width:33%">
<input type="text" data-dojo-type="dijit.form.TextBox" name="fcontact_name" id="fcontact_name" style="width:32%">
<input type="text" data-dojo-type="dijit.form.TextBox" name="fcontact_email" id="fcontact_email" style="width:33%">
<div id="contacttable">
</div>
</div>
</form>
</div>
Just found the reason.
the columns need to have a 'id' column called ID. I just change the 'contact_id' column to 'id' and it works fine.
thanks