CRUD

by Kondal Durgam

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.12.0/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.11.0/umd/react-dom.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-router/5.1.2/react-router.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/babel-core/6.1.19/browser.min.js"></script>
<body>

<div id="container">
  <!-- This element's contents will be replaced with your component. -->
</div>
</body>

React

class Products extends React.Component {

  constructor(props) {
    super(props);

    //  this.state.products = [];
    this.state = {};
    this.state.filterText = "";
    this.state.products = [
      {
        id: 1,
        category: 'Sporting Goods',
        price: '49.99',
        qty: 12,
        name: 'Football'
      }, {
        id: 2,
        category: 'Sporting Goods',
        price: '9.99',
        qty: 15,
        name: 'Baseball'
      }, {
        id: 3,
        category: 'Sporting Goods',
        price: '29.99',
        qty: 14,
        name: 'Basketball'
      }, {
        id: 4,
        category: 'Electronics',
        price: '99.99',
        qty: 34,
        name: 'iPod Touch'
      }, {
        id: 5,
        category: 'Electronics',
        price: '399.99',
        qty: 12,
        name: 'iPhone 5'
      }, {
        id: 6,
        category: 'Electronics',
        price: '199.99',
        qty: 23,
        name: 'Nexu 7'
      }
    ];

  }
  handleUserInput(filterText) {
    this.setState({filterText: filterText});
  };
  handleRowDel(product) {
    var index = this.state.products.indexOf(product);
    this.state.products.splice(index, 1);
    this.setState(this.state.products);
  };

  handleAddEvent(evt) {
    var id = (+ new Date() + Math.floor(Math.random() * 999999)).toString(36);
    var product = {
      id: id,
      name: "",
      price: "",
      category: "",
      qty: 0
    }
    this.state.products.push(product);
    this.setState(this.state.products);

  }

  handleProductTable(evt) {
    var item = {
      id: evt.target.id,
      name: evt.target.name,
      value: evt.target.value
    };
    var products = this.state.products;

    var newProducts = products.map(function(product) {
      for (var key in product) {
        if (key == item.name && product.id == item.id) {
          product[key] = item.value;

        }
      }
      return product;
    });
    this.setState(newProducts);
   ...