[examples][sm] - renaming ckan to ckan-2021

examples/ckan-2021/components/resource/Preview.tsx

@@ -0,0 +1,32 @@
+import { useQuery } from '@apollo/react-hooks';
+import { PlotlyChart, Table } from '@portaljs/portaljs-components';
+import { ErrorMessage } from '../_shared';
+import { GET_DATASTORE_DATA } from '../../graphql/queries';
+
+const Preview: React.FC<{ view: any }> = ({ view }) => {
+  const variables = {
+    resource_id: view.resources,
+  };
+  const { loading, error, data } = useQuery(GET_DATASTORE_DATA, {
+    variables,
+    // Setting this value to true will make the component rerender when
+    // the "networkStatus" changes, so we are able to know if it is fetching
+    // more data
+    notifyOnNetworkStatusChange: true,
+  });
+
+  if (error) return <ErrorMessage message="Error loading dataset." />;
+  if (loading) return <div>Loading</div>;
+
+  const { result } = data.datastore;
+
+  // Assuming for now it is always a table view
+  const columns = result.fields.map((field) => ({
+    field: field.id,
+    headerName: field.id,
+  }));
+
+  return <Table columns={columns} data={result.records} height="300px" width="100%"/>;
+};
+
+export default Preview;