列表页常见hook封装实例

const usePagination = <TData extends Data, TParams extends Params>(
  service: Service<TData, TParams>,
  options: PaginationOptions<TData, TParams> = {},
) => {
  const { defaultPageSize = 10, ...rest } = options;
  // service 返回的数据结构为 { total: number, list: Item[] }
  const result = useRequest(service, {
    // service 的第一个参数为 { current: number, pageSize: number }
    defaultParams: [{ current: 1, pageSize: defaultPageSize }],
    // refreshDeps 变化，会重置 current 到第一页，并重新发起请求，一般你可以把 pagination 依赖的条件放这里
    refreshDepsAction: () => {
      // eslint-disable-next-line @typescript-eslint/no-use-before-define
      changeCurrent(1);
    },
    ...rest,
  });
    // 取到相关的请求参数
  const { current = 1, pageSize = defaultPageSize } = result.params[0] || {};
  // 获取请求结果，total 代表数据总条数
  const total = result.data?.total || 0;
  // 获取到总的页数
  const totalPage = useMemo(() => Math.ceil(total / pageSize), [pageSize, total]);
}

// c，代表 current page
// p，代表 page size
const onChange = (c: number, p: number) => {
  let toCurrent = c <= 0 ? 1 : c;
  const toPageSize = p <= 0 ? 1 : p;
  // 根据 total 算出总页数
  const tempTotalPage = Math.ceil(total / toPageSize);
  // 假如此时总页面小于当前页面，需要将当前页面赋值为总页数
  if (toCurrent > tempTotalPage) {
    toCurrent = Math.max(1, tempTotalPage);
  }
  const [oldPaginationParams = {}, ...restParams] = result.params || [];
  // 重新执行请求
  result.run(
    // 留意参数变化，主要是当前页数和每页的总数量发生变化
    {
      ...oldPaginationParams,
      current: toCurrent,
      pageSize: toPageSize,
    },
    ...restParams,
  );
};
const changeCurrent = (c: number) => {
  onChange(c, pageSize);
};
const changePageSize = (p: number) => {
  onChange(current, p);
};

return {
  ...result,
  // 会额外返回 pagination 字段，包含所有分页信息，及操作分页的函数。
  pagination: {
    current,
    pageSize,
    total,
    totalPage,
    onChange: useMemoizedFn(onChange),
    changeCurrent: useMemoizedFn(changeCurrent),
    changePageSize: useMemoizedFn(changePageSize),
  },
} as PaginationResult<TData, TParams>;

const useAntdTable = <TData extends Data, TParams extends Params>(
  service: Service<TData, TParams>,
  options: AntdTableOptions<TData, TParams> = {},
) => {
  const {
    // form 实例
    form,
    // 默认表单选项
    defaultType = 'simple',
    // 默认参数，第一项为分页数据，第二项为表单数据。[pagination, formData]
    defaultParams,
    manual = false,
    // refreshDeps 变化，会重置 current 到第一页，并重新发起请求。
    refreshDeps = [],
    ready = true,
    ...rest
  } = options;
  // 对分页的逻辑进行处理
  // 分页也是对 useRequest 的再封装
  const result = usePagination<TData, TParams>(service, {
    manual: true,
    ...rest,
  });
  // ...
}

// 判断是否为 Antd 的第四版本
const isAntdV4 = !!form?.getInternalHooks;

// 获取当前的 from 值
const getActivetFieldValues = () => {
  if (!form) {
    return {};
  }
  // antd 4
  if (isAntdV4) {
    return form.getFieldsValue(null, () => true);
  }
  // antd 3
  const allFieldsValue = form.getFieldsValue();
  const activeFieldsValue = {};
  Object.keys(allFieldsValue).forEach((key: string) => {
    if (form.getFieldInstance ? form.getFieldInstance(key) : true) {
      activeFieldsValue[key] = allFieldsValue[key];
    }
  });
  return activeFieldsValue;
};

// 校验逻辑
const validateFields = (): Promise<Record<string, any>> => {
  if (!form) {
    return Promise.resolve({});
  }
  const activeFieldsValue = getActivetFieldValues();
  const fields = Object.keys(activeFieldsValue);
  // antd 4
  // validateFields 直接调用
  if (isAntdV4) {
    return (form.validateFields as Antd4ValidateFields)(fields);
  }
  // antd 3
  return new Promise((resolve, reject) => {
    form.validateFields(fields, (errors, values) => {
      if (errors) {
        reject(errors);
      } else {
        resolve(values);
      }
    });
  });
};

// 重置表单
const restoreForm = () => {
  if (!form) {
    return;
  }
  // antd v4
  if (isAntdV4) {
    return form.setFieldsValue(allFormDataRef.current);
  }
  // antd v3
  const activeFieldsValue = {};
  Object.keys(allFormDataRef.current).forEach((key) => {
    if (form.getFieldInstance ? form.getFieldInstance(key) : true) {
      activeFieldsValue[key] = allFormDataRef.current[key];
    }
  });
  form.setFieldsValue(activeFieldsValue);
};

const changeType = () => {
  // 获取当前表单值
  const activeFieldsValue = getActivetFieldValues();
  // 修改表单值
  allFormDataRef.current = {
    ...allFormDataRef.current,
    ...activeFieldsValue,
  };
  // 设置表单类型
  setType((t) => (t === 'simple' ? 'advance' : 'simple'));
};
// 修改 type，则重置 form 表单数据
useUpdateEffect(() => {
  if (!ready) {
    return;
  }
  restoreForm();
}, [type]);

const _submit = (initPagination?: TParams[0]) => {
  setTimeout(() => {
    // 先进行校验
    validateFields()
      .then((values = {}) => {
        // 分页的逻辑
        const pagination = initPagination || {
          pageSize: options.defaultPageSize || 10,
          ...(params?.[0] || {}),
          current: 1,
        };
        // 假如没有 form，则直接根据分页的逻辑进行请求
        if (!form) {
          // @ts-ignore
          run(pagination);
          return;
        }
        // 获取到当前所有 form 的 Data 参数
        // record all form data
        allFormDataRef.current = {
          ...allFormDataRef.current,
          ...values,
        };
        // @ts-ignore
        run(pagination, values, {
          allFormData: allFormDataRef.current,
          type,
        });
      })
      .catch((err) => err);
  });
};

// Table 组件的 onChange 事件
const onTableChange = (pagination: any, filters: any, sorter: any) => {
  const [oldPaginationParams, ...restParams] = params || [];
  run(
    // @ts-ignore
    {
      ...oldPaginationParams,
      current: pagination.current,
      pageSize: pagination.pageSize,
      filters,
      sorter,
    },
    ...restParams,
  );
};

// 初始化逻辑
// init
useEffect(() => {
  // if has cache, use cached params. ignore manual and ready.
  // params.length > 0，则说明有缓存
  if (params.length > 0) {
    // 使用缓存的数据
    allFormDataRef.current = cacheFormTableData?.allFormData || {};
    // 重置表单后执行请求
    restoreForm();
    // @ts-ignore
    run(...params);
    return;
  }
  // 非手动并且已经 ready，则执行 _submit
  if (!manual && ready) {
    allFormDataRef.current = defaultParams?.[1] || {};
    restoreForm();
    _submit(defaultParams?.[0]);
  }
}, []);

return {
  ...result,
  // Table 组件需要的数据，直接透传给 Table 组件即可
  tableProps: {
    dataSource: result.data?.list || defaultDataSourceRef.current,
    loading: result.loading,
    onChange: useMemoizedFn(onTableChange),
    pagination: {
      current: result.pagination.current,
      pageSize: result.pagination.pageSize,
      total: result.pagination.total,
    },
  },
  search: {
    // 提交表单
    submit: useMemoizedFn(submit),
    // 当前表单类型， simple | advance
    type,
    // 切换表单类型
    changeType: useMemoizedFn(changeType),
    // 重置当前表单
    reset: useMemoizedFn(reset),
  },
} as AntdTableResult<TData, TParams>;