[RFR] Data hooks

UPGRADE.md

@@ -75,3 +75,36 @@ If you're using a Custom App, you had to render Resource components with the reg
 -               <Resource name="users" context="registration" />
 +               <Resource name="users" intent="registration" />
 ```
+
+## `withDataProvider` no longer injects `dispatch`
+
+The `withDataProvider` HOC used to inject two props: `dataProvider`, and redux' `dispatch`. This last prop is now easy to get via the `useDispatch` hook from Redux, so `withDataProvider` no longer injects it.
+
+```diff
+import {
+   showNotification,
+   UPDATE,
+   withDataProvider,
+} from 'react-admin';
++ import { useDispatch } from 'react-redux';
+
+-const ApproveButton = ({ dataProvider, dispatch, record }) => {
++const ApproveButton = ({ dataProvider, record }) => {
++   const dispatch = withDispatch();
+    const handleClick = () => {
+        const updatedRecord = { ...record, is_approved: true };
+        dataProvider(UPDATE, 'comments', { id: record.id, data: updatedRecord })
+            .then(() => {
+                dispatch(showNotification('Comment approved'));
+                dispatch(push('/comments'));
+            })
+            .catch((e) => {
+                dispatch(showNotification('Error: comment not approved', 'warning'))
+            });
+    }
+
+    return <Button label="Approve" onClick={handleClick} />;
+}
+
+export default withDataProvider(ApproveButton);
+```

docs/_layouts/default.html

@@ -713,13 +713,10 @@
                         </a>
                         <ul class="articles" {% if page.path !='Actions.md' %}style="display:none" {% endif %}>
                             <li class="chapter">
-                                <a href="#the-basic-way-using-fetch">The Basic Way: Using <code>fetch</code></a>
+                                <a href="#usequery-hook"><code>useQuery</code></a>
                             </li>
                             <li class="chapter">
-                                <a href="#using-the-data-provider-instead-of-fetch">Using the <code>dataProvider</code></a>
-                            </li>
-                            <li class="chapter">
-                                <a href="#using-the-withdataprovider-decorator">Using <code>withDataProvider</code></a>
+                                <a href="#usemutation-hook"><code>useMutation</code></a>
                             </li>
                             <li class="chapter">
                                 <a href="#handling-side-effects">Handling Side Effects</a>
@@ -728,8 +725,14 @@
                                 <a href="#optimistic-rendering-and-undo">Optimistic Rendering and Undo</a>
                             </li>
                             <li class="chapter">
-                                <a href="#query-and-mutation-components"><code>&lt;Query&gt;</code> and <code>&lt;Mutation&gt;</code></a>
+                                    <a href="#usedataprovider-hook"><code>useDataProvider</code></a>
+                                </li>
+                            <li class="chapter">
+                                <a href="#legacy-components-query-mutation-and-withdataprovider"><code>&lt;Query&gt;</code> and <code>&lt;Mutation&gt;</code></a>
                             </li>    
+                            <li class="chapter">
+                                <a href="#querying-the-api-with-fetch">Querying The API With <code>fetch</code></a>
+                            </li>
                             <li class="chapter">
                                 <a href="#using-a-custom-action-creator">Using a Custom Action Creator</a>
                             </li>

examples/demo/src/dashboard/Dashboard.js

@@ -35,7 +35,6 @@ class Dashboard extends Component {
     fetchData() {
         this.fetchOrders();
         this.fetchReviews();
-        this.fetchCustomers();
     }
 
     async fetchOrders() {
@@ -112,34 +111,10 @@ class Dashboard extends Component {
         });
     }
 
-    async fetchCustomers() {
-        const { dataProvider } = this.props;
-        const aMonthAgo = new Date();
-        aMonthAgo.setDate(aMonthAgo.getDate() - 30);
-        const { data: newCustomers } = await dataProvider(
-            GET_LIST,
-            'customers',
-            {
-                filter: {
-                    has_ordered: true,
-                    first_seen_gte: aMonthAgo.toISOString(),
-                },
-                sort: { field: 'first_seen', order: 'DESC' },
-                pagination: { page: 1, perPage: 100 },
-            }
-        );
-        this.setState({
-            newCustomers,
-            nbNewCustomers: newCustomers.reduce(nb => ++nb, 0),
-        });
-    }
-
     render() {
         const {
-            nbNewCustomers,
             nbNewOrders,
             nbPendingReviews,
-            newCustomers,
             pendingOrders,
             pendingOrdersCustomers,
             pendingReviews,
@@ -208,10 +183,7 @@ class Dashboard extends Component {
                                     reviews={pendingReviews}
                                     customers={pendingReviewsCustomers}
                                 />
-                                <NewCustomers
-                                    nb={nbNewCustomers}
-                                    visitors={newCustomers}
-                                />
+                                <NewCustomers />
                             </div>
                         </div>
                     </div>

examples/demo/src/dashboard/NewCustomers.js

@@ -1,4 +1,4 @@
-import React from 'react';
+import React, { useMemo } from 'react';
 import compose from 'recompose/compose';
 import Card from '@material-ui/core/Card';
 import List from '@material-ui/core/List';
@@ -10,7 +10,7 @@ import Typography from '@material-ui/core/Typography';
 import CustomerIcon from '@material-ui/icons/PersonAdd';
 import Divider from '@material-ui/core/Divider';
 import { Link } from 'react-router-dom';
-import { translate } from 'react-admin';
+import { translate, useQuery, GET_LIST } from 'react-admin';
 
 import CardIcon from './CardIcon';
 
@@ -40,43 +40,64 @@ const styles = theme => ({
     },
 });
 
-const NewCustomers = ({ visitors = [], nb, translate, classes }) => (
-    <div className={classes.main}>
-        <CardIcon Icon={CustomerIcon} bgColor="#4caf50" />
-        <Card className={classes.card}>
-            <Typography className={classes.title} color="textSecondary">
-                {translate('pos.dashboard.new_customers')}
-            </Typography>
-            <Typography
-                variant="headline"
-                component="h2"
-                className={classes.value}
-            >
-                {nb}
-            </Typography>
-            <Divider />
-            <List>
-                {visitors.map(record => (
-                    <ListItem
-                        button
-                        to={`/customers/${record.id}`}
-                        component={Link}
-                        key={record.id}
-                    >
-                        <Avatar
-                            src={`${record.avatar}?size=32x32`}
-                            className={classes.avatar}
-                        />
-                        <ListItemText
-                            primary={`${record.first_name} ${record.last_name}`}
-                            className={classes.listItemText}
-                        />
-                    </ListItem>
-                ))}
-            </List>
-        </Card>
-    </div>
-);
+const NewCustomers = ({ translate, classes }) => {
+    const aMonthAgo = useMemo(() => {
+        const date = new Date();
+        date.setDate(date.getDate() - 30);
+        return date;
+    }, []);
+
+    const { loaded, data: visitors } = useQuery(GET_LIST, 'customers', {
+        filter: {
+            has_ordered: true,
+            first_seen_gte: aMonthAgo.toISOString(),
+        },
+        sort: { field: 'first_seen', order: 'DESC' },
+        pagination: { page: 1, perPage: 100 },
+    });
+
+    if (!loaded) return null;
+    const nb = visitors.reduce(nb => ++nb, 0);
+    return (
+        <div className={classes.main}>
+            <CardIcon Icon={CustomerIcon} bgColor="#4caf50" />
+            <Card className={classes.card}>
+                <Typography className={classes.title} color="textSecondary">
+                    {translate('pos.dashboard.new_customers')}
+                </Typography>
+                <Typography
+                    variant="headline"
+                    component="h2"
+                    className={classes.value}
+                >
+                    {nb}
+                </Typography>
+                <Divider />
+                <List>
+                    {visitors.map(record => (
+                        <ListItem
+                            button
+                            to={`/customers/${record.id}`}
+                            component={Link}
+                            key={record.id}
+                        >
+                            <Avatar
+                                src={`${record.avatar}?size=32x32`}
+                                className={classes.avatar}
+                            />
+                            <ListItemText
+                                primary={`${record.first_name} ${
+                                    record.last_name
+                                }`}
+                                className={classes.listItemText}
+                            />
+                        </ListItem>
+                    ))}
+                </List>
+            </Card>
+        </div>
+    );
+};
 
 const enhance = compose(
     withStyles(styles),

examples/demo/src/reviews/AcceptButton.js

@@ -4,10 +4,11 @@ import { connect } from 'react-redux';
 import { formValueSelector } from 'redux-form';
 import Button from '@material-ui/core/Button';
 import ThumbUp from '@material-ui/icons/ThumbUp';
-import { translate, Mutation } from 'react-admin';
+import { translate, useMutation } from 'react-admin';
 import compose from 'recompose/compose';
 
 const sideEffects = {
+    undoable: true,
     onSuccess: {
         notification: {
             body: 'resources.reviews.notification.approved_success',
@@ -24,34 +25,33 @@ const sideEffects = {
 };
 
 /**
- * This custom button demonstrate using <Mutation> to update data
+ * This custom button demonstrate using useMutation to update data
  */
-const AcceptButton = ({ record, translate }) =>
-    record && record.status === 'pending' ? (
-        <Mutation
-            type="UPDATE"
-            resource="reviews"
-            payload={{ id: record.id, data: { status: 'accepted' } }}
-            options={sideEffects}
+const AcceptButton = ({ record, translate }) => {
+    const [approve, { loading }] = useMutation(
+        'UPDATE',
+        'reviews',
+        { id: record.id, data: { status: 'accepted' } },
+        sideEffects
+    );
+    return record && record.status === 'pending' ? (
+        <Button
+            variant="outlined"
+            color="primary"
+            size="small"
+            onClick={approve}
+            disabled={loading}
         >
-            {approve => (
-                <Button
-                    variant="outlined"
-                    color="primary"
-                    size="small"
-                    onClick={approve}
-                >
-                    <ThumbUp
-                        color="primary"
-                        style={{ paddingRight: '0.5em', color: 'green' }}
-                    />
-                    {translate('resources.reviews.action.accept')}
-                </Button>
-            )}
-        </Mutation>
+            <ThumbUp
+                color="primary"
+                style={{ paddingRight: '0.5em', color: 'green' }}
+            />
+            {translate('resources.reviews.action.accept')}
+        </Button>
     ) : (
         <span />
     );
+};
 
 AcceptButton.propTypes = {
     record: PropTypes.object,

packages/ra-core/package.json

@@ -41,7 +41,7 @@
         "react": "~16.8.0",
         "react-dom": "~16.8.0",
         "react-test-renderer": "~16.8.6",
-        "react-testing-library": "^5.2.3",
+        "react-testing-library": "^7.0.0",
         "rimraf": "^2.6.3"
     },
     "peerDependencies": {

packages/ra-core/src/util/Mutation.spec.tsx → packages/ra-core/src/fetch/Mutation.spec.tsx

@@ -10,7 +10,7 @@ import expect from 'expect';
 import Mutation from './Mutation';
 import CoreAdmin from '../CoreAdmin';
 import Resource from '../Resource';
-import TestContext from './TestContext';
+import TestContext from '../util/TestContext';
 
 describe('Mutation', () => {
     afterEach(cleanup);

packages/ra-core/src/fetch/Mutation.tsx

@@ -0,0 +1,53 @@
+import { FunctionComponent, ReactElement } from 'react';
+import useMutation from './useMutation';
+
+type DataProviderCallback = (
+    type: string,
+    resource: string,
+    payload?: any,
+    options?: any
+) => Promise<any>;
+
+interface ChildrenFuncParams {
+    data?: any;
+    loading: boolean;
+    error?: any;
+}
+
+interface Props {
+    children: (
+        mutate: () => void,
+        params: ChildrenFuncParams
+    ) => ReactElement<any, any>;
+    type: string;
+    resource: string;
+    payload?: any;
+    options?: any;
+}
+
+/**
+ * Craft a callback to fetch the data provider and pass it to a child function
+ *
+ * @example
+ *
+ * const ApproveButton = ({ record }) => (
+ *     <Mutation
+ *         type="UPDATE"
+ *         resource="comments"
+ *         payload={{ id: record.id, data: { isApproved: true } }}
+ *     >
+ *         {(approve) => (
+ *             <FlatButton label="Approve" onClick={approve} />
+ *         )}
+ *     </Mutation>
+ * );
+ */
+const Mutation: FunctionComponent<Props> = ({
+    children,
+    type,
+    resource,
+    payload,
+    options,
+}) => children(...useMutation(type, resource, payload, options));
+
+export default Mutation;