javascript - Converting Function Base Component into Class Base Component

Question

Right now, I have a react functional base component. I need to convert it to a class based component. I am fairly new to React but I have tried to convert the component. But still, no luck. The code is of the basic dashboard which I have picked from https://github.com/mui-org/material-ui/blob/master/docs/src/pages/getting-started/templates/dashboard/Dashboard.js

This is my functional component

import React from 'react';
import clsx from 'clsx';
import { makeStyles } from '@material-ui/core/styles';
import CssBaseline from '@material-ui/core/CssBaseline';
import Drawer from '@material-ui/core/Drawer';
import Box from '@material-ui/core/Box';
import AppBar from '@material-ui/core/AppBar';
import Toolbar from '@material-ui/core/Toolbar';
import List from '@material-ui/core/List';
import Typography from '@material-ui/core/Typography';
import Divider from '@material-ui/core/Divider';
import IconButton from '@material-ui/core/IconButton';
import Badge from '@material-ui/core/Badge';
import Container from '@material-ui/core/Container';
import Grid from '@material-ui/core/Grid';
import Paper from '@material-ui/core/Paper';
import Link from '@material-ui/core/Link';
import MenuIcon from '@material-ui/icons/Menu';
import ChevronLeftIcon from '@material-ui/icons/ChevronLeft';
import NotificationsIcon from '@material-ui/icons/Notifications';

function Copyright() {
  return (
    <Typography variant="body2" color="textSecondary" align="center">
      {'Copyright © '}
      <Link color="inherit" href="https://material-ui.com/">
        Your Website
      </Link>{' '}
      {new Date().getFullYear()}
      {'.'}
    </Typography>
  );
}

const drawerWidth = 240;

const useStyles = makeStyles((theme) => ({
  root: {
    display: 'flex',
  },
  toolbar: {
    paddingRight: 24, // keep right padding when drawer closed
  },
  toolbarIcon: {
    display: 'flex',
    alignItems: 'center',
    justifyContent: 'flex-end',
    padding: '0 8px',
    ...theme.mixins.toolbar,
  },
  appBar: {
    zIndex: theme.zIndex.drawer + 1,
    transition: theme.transitions.create(['width', 'margin'], {
      easing: theme.transitions.easing.sharp,
      duration: theme.transitions.duration.leavingScreen,
    }),
  },
  appBarShift: {
    marginLeft: drawerWidth,
    width: `calc(100% - ${drawerWidth}px)`,
    transition: theme.transitions.create(['width', 'margin'], {
      easing: theme.transitions.easing.sharp,
      duration: theme.transitions.duration.enteringScreen,
    }),
  },
  menuButton: {
    marginRight: 36,
  },
  menuButtonHidden: {
    display: 'none',
  },
  title: {
    flexGrow: 1,
  },
  drawerPaper: {
    position: 'relative',
    whiteSpace: 'nowrap',
    width: drawerWidth,
    transition: theme.transitions.create('width', {
      easing: theme.transitions.easing.sharp,
      duration: theme.transitions.duration.enteringScreen,
    }),
  },
  drawerPaperClose: {
    overflowX: 'hidden',
    transition: theme.transitions.create('width', {
      easing: theme.transitions.easing.sharp,
      duration: theme.transitions.duration.leavingScreen,
    }),
    width: theme.spacing(7),
    [theme.breakpoints.up('sm')]: {
      width: theme.spacing(9),
    },
  },
  appBarSpacer: theme.mixins.toolbar,
  content: {
    flexGrow: 1,
    height: '100vh',
    overflow: 'auto',
  },
  container: {
    paddingTop: theme.spacing(4),
    paddingBottom: theme.spacing(4),
  },
  paper: {
    padding: theme.spacing(2),
    display: 'flex',
    overflow: 'auto',
    flexDirection: 'column',
  },
  fixedHeight: {
    height: 240,
  },
}));

export default function Dashboard() {
  const classes = useStyles();
  const [open, setOpen] = React.useState(true);
  const handleDrawerOpen = () => {
    setOpen(true);
  };
  const handleDrawerClose = () => {
    setOpen(false);
  };
  const fixedHeightPaper = clsx(classes.paper, classes.fixedHeight);

  return (
    <div className={classes.root}>
      <CssBaseline />
      <AppBar position="absolute" className={clsx(classes.appBar, open && classes.appBarShift)}>
        <Toolbar className={classes.toolbar}>
          <IconButton
            edge="start"
            color="inherit"
            aria-label="open drawer"
            onClick={handleDrawerOpen}
            className={clsx(classes.menuButton, open && classes.menuButtonHidden)}
          >
            <MenuIcon />
          </IconButton>
          <Typography component="h1" variant="h6" color="inherit" noWrap className={classes.title}>
            Dashboard
          </Typography>
          <IconButton color="inherit">
            <Badge badgeContent={4} color="secondary">
              <NotificationsIcon />
            </Badge>
          </IconButton>
        </Toolbar>
      </AppBar>
      <Drawer
        variant="permanent"
        classes={{
          paper: clsx(classes.drawerPaper, !open && classes.drawerPaperClose),
        }}
        open={open}
      >
        <div className={classes.toolbarIcon}>
          <IconButton onClick={handleDrawerClose}>
            <ChevronLeftIcon />
          </IconButton>
        </div>
      </Drawer>
      <main className={classes.content}>
        <div className={classes.appBarSpacer} />
        <Container maxWidth="lg" className={classes.container}>
          <Grid container spacing={3}>
            {/* Chart */}
            <Grid item xs={12} md={8} lg={9}>
              <Paper className={fixedHeightPaper}>
                
              </Paper>
            </Grid>
            {/* Recent Deposits */}
            <Grid item xs={12} md={4} lg={3}>
              <Paper className={fixedHeightPaper}>
                
              </Paper>
            </Grid>
            {/* Recent Orders */}
            <Grid item xs={12}>
              <Paper className={classes.paper}>
               
              </Paper>
            </Grid>
          </Grid>
          <Box pt={4}>
            <Copyright />
          </Box>
        </Container>
      </main>
    </div>
  );
}

This is what I have done so far in Class Component

import React, { Component } from 'react';
import clsx from 'clsx';
import { connect } from "react-redux";
import { makeStyles } from '@material-ui/core/styles';
import CssBaseline from '@material-ui/core/CssBaseline';
import Drawer from '@material-ui/core/Drawer';
import Box from '@material-ui/core/Box';
import AppBar from '@material-ui/core/AppBar';
import Toolbar from '@material-ui/core/Toolbar';
import List from '@material-ui/core/List';
import Typography from '@material-ui/core/Typography';
import Divider from '@material-ui/core/Divider';
import IconButton from '@material-ui/core/IconButton';
import Badge from '@material-ui/core/Badge';
import Container from '@material-ui/core/Container';
import Grid from '@material-ui/core/Grid';
import Paper from '@material-ui/core/Paper';
import Link from '@material-ui/core/Link';
import MenuIcon from '@material-ui/icons/Menu';
import ChevronLeftIcon from '@material-ui/icons/ChevronLeft';
import NotificationsIcon from '@material-ui/icons/Notifications';
import { withStyles } from '@material-ui/core/styles';
// import { mainListItems, secondaryListItems } from './listItems';
// import Chart from './Chart';
// import Deposits from './Deposits';
// import Orders from './Orders';

function Copyright() {
  return (
    <Typography variant="body2" color="textSecondary" align="center">
      {'Copyright © '}
      <Link color="inherit" href="https://material-ui.com/">
        Your Website
      </Link>{' '}
      {new Date().getFullYear()}
      {'.'}
    </Typography>
  );
}

const drawerWidth = 240;


const useStyles = withStyles((theme) => ({
  root: {
    display: 'flex',
  },
  toolbar: {
    paddingRight: 24, // keep right padding when drawer closed
  },
  toolbarIcon: {
    display: 'flex',
    alignItems: 'center',
    justifyContent: 'flex-end',
    padding: '0 8px',
    ...theme.mixins.toolbar,
  },
  appBar: {
    zIndex: theme.zIndex.drawer + 1,
    transition: theme.transitions.create(['width', 'margin'], {
      easing: theme.transitions.easing.sharp,
      duration: theme.transitions.duration.leavingScreen,
    }),
  },
  appBarShift: {
    marginLeft: drawerWidth,
    width: `calc(100% - ${drawerWidth}px)`,
    transition: theme.transitions.create(['width', 'margin'], {
      easing: theme.transitions.easing.sharp,
      duration: theme.transitions.duration.enteringScreen,
    }),
  },
  menuButton: {
    marginRight: 36,
  },
  menuButtonHidden: {
    display: 'none',
  },
  title: {
    flexGrow: 1,
  },
  drawerPaper: {
    position: 'relative',
    whiteSpace: 'nowrap',
    width: drawerWidth,
    transition: theme.transitions.create('width', {
      easing: theme.transitions.easing.sharp,
      duration: theme.transitions.duration.enteringScreen,
    }),
  },
  drawerPaperClose: {
    overflowX: 'hidden',
    transition: theme.transitions.create('width', {
      easing: theme.transitions.easing.sharp,
      duration: theme.transitions.duration.leavingScreen,
    }),
    width: theme.spacing(7),
    [theme.breakpoints.up('sm')]: {
      width: theme.spacing(9),
    },
  },
  appBarSpacer: theme.mixins.toolbar,
  content: {
    flexGrow: 1,
    height: '100vh',
    overflow: 'auto',
  },
  container: {
    paddingTop: theme.spacing(4),
    paddingBottom: theme.spacing(4),
  },
  paper: {
    padding: theme.spacing(2),
    display: 'flex',
    overflow: 'auto',
    flexDirection: 'column',
  },
  fixedHeight: {
    height: 240,
  },
}));


class Dashboard extends Component {
  constructor(props) {
    super(props);
   
    this.state = {
      open: true,
    };
  }
  

  handleDrawerOpen = () => {
    this.setState({
      open: true
    })
  };
  handleDrawerClose = () => {
    this.setState({
      open: false
    })
  };
  render() {
    const classes = makeStyles();
    const fixedHeightPaper = clsx(classes.paper, classes.fixedHeight);
    const { open } = this.state;
    return (
      <div className={classes.root}>
        <CssBaseline />
        <AppBar position="absolute" className={clsx(classes.appBar, open && classes.appBarShift)}>
          <Toolbar className={classes.toolbar}>
            <IconButton
              edge="start"
              color="inherit"
              aria-label="open drawer"
              onClick={this.handleDrawerOpen}
              className={clsx(classes.menuButton, open && classes.menuButtonHidden)}
            >
              <MenuIcon />
            </IconButton>
            <Typography component="h1" variant="h6" color="inherit" noWrap className={classes.title}>
              Dashboard
          </Typography>
            <IconButton color="inherit">
              <Badge badgeContent={4} color="secondary">
                <NotificationsIcon />
              </Badge>
            </IconButton>
          </Toolbar>
        </AppBar>
        <Drawer
          variant="permanent"
          classes={{
            paper: clsx(classes.drawerPaper, !open && classes.drawerPaperClose),
          }}
          open={open}
        >
          <div className={classes.toolbarIcon}>
            <IconButton onClick={this.handleDrawerClose}>
              <ChevronLeftIcon />
            </IconButton>
          </div>
          <Divider />
          {/* <List>{mainListItems}</List> */}
          <Divider />
          {/* <List>{secondaryListItems}</List> */}
        </Drawer>
        <main className={classes.content}>
          <div className={classes.appBarSpacer} />
          <Container maxWidth="lg" className={classes.container}>
            <Grid container spacing={3}>
              {/* Chart */}
              <Grid item xs={12} md={8} lg={9}>
                <Paper className={fixedHeightPaper}>
                  {/* <Chart /> */}
                </Paper>
              </Grid>
              {/* Recent Deposits */}
              <Grid item xs={12} md={4} lg={3}>
                <Paper className={fixedHeightPaper}>
                  {/* <Deposits /> */}
                </Paper>
              </Grid>
              {/* Recent Orders */}
              <Grid item xs={12}>
                <Paper className={classes.paper}>
                  {/* <Orders /> */}
                </Paper>
              </Grid>
            </Grid>
            <Box pt={4}>
              <Copyright />
            </Box>
          </Container>
        </main>
      </div>
    );
  }
}
export default Dashboard;

Your help will be highly appreciated. Thanks