`useSortedRowIds`

The useSortedRowIds hook returns the sorted (and optionally, paginated) Ids of every Row in a given Table, and registers a listener so that any changes to that result will cause a re-render.

useSortedRowIds(
  tableId: string,
  cellId?: string,
  descending?: boolean,
  offset?: number,
  limit?: number,
  storeOrStoreId?: StoreOrStoreId,
): Ids

	Type	Description
`tableId`	`string`	The `Id` of the `Table` in the `Store`.
`cellId?`	`string`	The `Id` of the `Cell` whose values are used for the sorting, or `undefined` to by sort the `Row` `Id` itself.
`descending?`	`boolean`	Whether the sorting should be in descending order.
`offset?`	`number`	The number of `Row` `Ids` to skip for pagination purposes, if any.
`limit?`	`number`	The maximum number of `Row` `Ids` to return, or `undefined` for all.
`storeOrStoreId?`	`StoreOrStoreId`	The `Store` to be accessed: omit for the default context `Store`, provide an `Id` for a named context `Store`, or provide an explicit reference.
returns	`Ids`	An array of the sorted `Ids` of every `Row` in the `Table`.

A Provider component is used to wrap part of an application in a context, and it can contain a default Store or a set of Store objects named by Id. The useSortedRowIds hook lets you indicate which Store to get data for: omit the optional final parameter for the default context Store, provide an Id for a named context Store, or provide a Store explicitly by reference.

When first rendered, this hook will create a listener so that changes to the sorted Row Ids will cause a re-render. When the component containing this hook is unmounted, the listener will be automatically removed.

Examples

This example creates a Store outside the application, which is used in the useSortedRowIds hook by reference. A change to the data in the Store re-renders the component.

import React from 'react';
import {createRoot} from 'react-dom/client';
import {createStore} from 'tinybase';
import {useSortedRowIds} from 'tinybase/ui-react';

const store = createStore().setTables({
  pets: {
    fido: {species: 'dog'},
    felix: {species: 'cat'},
  },
});
const App = () => (
  <span>
    {JSON.stringify(
      useSortedRowIds('pets', 'species', false, 0, undefined, store),
    )}
  </span>
);

const app = document.createElement('div');
createRoot(app).render(<App />);
console.log(app.innerHTML);
// -> '<span>["felix","fido"]</span>'

store.setRow('pets', 'cujo', {species: 'wolf'});
console.log(app.innerHTML);
// -> '<span>["felix","fido","cujo"]</span>'

This example creates a Provider context into which a default Store is provided. A component within it then uses the useSortedRowIds hook.

import {Provider, useSortedRowIds} from 'tinybase/ui-react';
import React from 'react';
import {createRoot} from 'react-dom/client';
import {createStore} from 'tinybase';

const App = ({store}) => (
  <Provider store={store}>
    <Pane />
  </Provider>
);
const Pane = () => <span>{JSON.stringify(useSortedRowIds('pets'))}</span>;

const store = createStore().setTables({
  pets: {
    fido: {species: 'dog'},
    felix: {species: 'cat'},
  },
});
const app = document.createElement('div');
createRoot(app).render(<App store={store} />);
console.log(app.innerHTML);
// -> '<span>["felix","fido"]</span>'

This example creates a Provider context into which a Store is provided, named by Id. A component within it then uses the useSortedRowIds hook.

import {Provider, useSortedRowIds} from 'tinybase/ui-react';
import React from 'react';
import {createRoot} from 'react-dom/client';
import {createStore} from 'tinybase';

const App = ({store}) => (
  <Provider storesById={{petStore: store}}>
    <Pane />
  </Provider>
);
const Pane = () => (
  <span>
    {JSON.stringify(
      useSortedRowIds('pets', 'species', false, 0, undefined, 'petStore'),
    )}
  </span>
);

const store = createStore().setTables({
  pets: {
    fido: {species: 'dog'},
    felix: {species: 'cat'},
  },
});
const app = document.createElement('div');
createRoot(app).render(<App store={store} />);
console.log(app.innerHTML);
// -> '<span>["felix","fido"]</span>'

Since

v2.0.0