Created
February 19, 2021 17:40
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| import React, { useState, useEffect } from "react" | |
| import { Link } from "gatsby" | |
| import Datatable from "../components/datatable" | |
| // Fetching data | |
| require("es6-promise").polyfill(); | |
| require("isomorphic-fetch") | |
| const IndexPage = () => { | |
| const [data, setData] = useState([]); | |
| const [q, setQ] = useState(""); | |
| const [totalRows, setTotalRows] = useState("Loading..."); | |
| const [displayedRows, setdisplayedRows] = useState("") | |
| function updateTotalRows (num) { | |
| setTotalRows(num) | |
| } | |
| function updateDisplayedRows (num) { | |
| setdisplayedRows(num) | |
| } | |
| // transform JSON | |
| function renameKey ( obj, oldKey, newKey ) { | |
| obj[newKey] = obj[oldKey]; | |
| delete obj[oldKey]; | |
| } | |
| function deleteKey (obj, key) { | |
| delete obj[key] | |
| } | |
| useEffect(() => { | |
| // Change when API in production | |
| fetch("http://localhost:8080/api/tests") | |
| .then((response) => response.json()) | |
| .then((json) => { | |
| // set data in state | |
| updateTotalRows(json.length) | |
| updateDisplayedRows(json.length) | |
| setData(json) | |
| }) | |
| }, []); | |
| function search(rows){ | |
| const columns = rows[0] && Object.keys(rows[0]); | |
| let output = rows.filter( | |
| (row) => | |
| columns.some(column => row[column].toString().toLowerCase().indexOf(q.toLowerCase()) > -1) | |
| ); | |
| console.log(output.length); // works | |
| updateDisplayedRows(output.length); // causes infinite loop error | |
| return output | |
| } | |
| return ( | |
| <Layout> | |
| <h1>Active Tests: {totalRows}</h1> | |
| <p> Showing {displayedRows} of {totalRows} </p> | |
| <input type="text" value={q} onChange={(e) => setQ(e.target.value)}/> | |
| <Datatable data={search(data)} /> | |
| </Layout> | |
| ); | |
| } | |
| export default IndexPage |
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