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table 删除操作

2021-11-17 11:39:38
import logo from "./logo.svg";
import "./Layout.less";
import {Button} from "antd";
import React, {useState, useEffect} from "react";
import {Table, Input, InputNumber, Popconfirm, Form, Typography} from "antd";
import {FormInstance} from "antd/lib/form";
import {
  UserOutlined,
  LaptopOutlined,
  NotificationOutlined,
} from "@ant-design/icons";

interface Item {
  key: string;
  name: string;
  age: number;
  address: string;
  enthusiasmLevel?: number;
}

const originData: Item[] = [];
for (let i = 0; i < 3; i++) {
  originData.push({
    key: i.toString(),
    name: `Edrward ${i}`,
    age: 32,
    address: `London Park no. ${i}`,
  });
}
interface EditableCellProps extends React.HTMLAttributes<HTMLElement> {
  editing: boolean;
  dataIndex: string;
  title: any;
  inputType: "number" | "text";
  record: Item;
  index: number;
  children: React.ReactNode;
}

const EditableCell: React.FC<EditableCellProps> = ({
  editing,
  dataIndex,
  title,
  inputType,
  record,
  index,
  children,
  ...restProps
}) => {
  const inputNode = inputType === "number" ? <InputNumber /> : <Input />;

  return (
    <td {...restProps}>
      {editing ? (
        <Form.Item
          name={dataIndex}
          style={{margin: 0}}
          rules={[
            {
              required: true,
              message: `Please Input ${title}!`,
            },
          ]}
        >
          {inputNode}
        </Form.Item>
      ) : (
        children
      )}
    </td>
  );
};

const EditableTable = () => {
  const [form] = Form.useForm();
  const [data, setData] = useState(originData);
  const [editingKey, setEditingKey] = useState("");


  // useEffect(() => {
   
  // }, [data]);

  const isEditing = (record: Item) => record.key === editingKey;

  const edit = (record: Partial<Item> & {key: React.Key}) => {
    form.setFieldsValue({name: "", age: "", address: "", ...record});
    setEditingKey(record.key);
  };

  const cancel = () => {
    setEditingKey("");
  };

  const save = async (key: React.Key) => {
    try {
      const row = (await form.validateFields()) as Item;

      const newData = [...data];
      const index = newData.findIndex((item) => key === item.key);
      if (index > -1) {
        const item = newData[index];
        newData.splice(index, 1, {
          ...item,
          ...row,
        });
        setData(newData);
        setEditingKey("");
      } else {
        newData.push(row);
        setData(newData);
        setEditingKey("");
      }
    } catch (errInfo) {
      console.log("Validate Failed:", errInfo);
    }
  };

  const handleDelete = (key: React.Key) => {
    console.log("🚀 ~ file: Table.tsx ~ line 115 ~ handleDelete ~ key", key);
    console.log("🚀 ~ data", data);
    const newData = data;
    // newData = newData.filter((item:any) => {item.key !== key});
    const index = newData.findIndex((item: any) => key === item.key);
    newData.splice(index, 1);
    setData([...newData]);
  };

  const columns = [
    {
      title: "name",
      dataIndex: "name",
      width: "25%",
      editable: true,
    },
    {
      title: "age",
      dataIndex: "age",
      width: "15%",
      editable: true,
    },
    {
      title: "address",
      dataIndex: "address",
      width: "40%",
      editable: true,
    },
    {
      title: "operation",
      dataIndex: "operation",
      render: (_: any, record: Item) => {
        const editable = isEditing(record);
        return editable ? (
          <span>
            <a
              href="javascript:;"
              onClick={() => save(record.key)}
              style={{marginRight: 8}}
            >
              保存
            </a>
            <Popconfirm title="确认取消吗?" onConfirm={cancel}>
              <a>取消</a>
            </Popconfirm>
          </span>
        ) : (
          <>
            <Typography.Link
              disabled={editingKey !== ""}
              onClick={() => edit(record)}
            >
              编辑
            </Typography.Link>
            {console.log('---------',data.length)}
            {data.length >= 2 ? ( // 注意此
              <Popconfirm
                title="确认删除吗?"
                onConfirm={() => {
                  handleDelete(record.key);
                }}
                okText="确定"
                cancelText="取消"
              >
                <a href="javascript:;">删除</a>
              </Popconfirm>
            ) : null}
          </>
        );
      },
    },
  ];

  const mergedColumns = columns.map((col) => {
    if (!col.editable) {
      return col;
    }
    return {
      ...col,
      onCell: (record: Item) => ({
        record,
        inputType: col.dataIndex === "age" ? "number" : "text",
        dataIndex: col.dataIndex,
        title: col.title,
        editing: isEditing(record),
      }),
    };
  });

  return (
    <Form form={form} component={false}>
      <Table
        components={{
          // 覆盖默认的 table 元素
          body: {
            cell: EditableCell,
          },
        }}
        bordered // 是否展示外边框和列边框
        dataSource={data}
        columns={mergedColumns}
        rowClassName="editable-row"
        pagination={{
          onChange: cancel,
        }}
      />
    </Form>
  );
};

export default EditableTable;