first commit

packages/nodes-base/nodes/DataTable/actions/row/rowNotExists.operation.ts

@@ -0,0 +1,29 @@
+import type {
+	IDisplayOptions,
+	IExecuteFunctions,
+	INodeExecutionData,
+	INodeProperties,
+} from 'n8n-workflow';
+
+import { executeSelectMany, getSelectFields } from '../../common/selectMany';
+import { getDataTableProxyExecute } from '../../common/utils';
+
+export const FIELD: string = 'rowNotExists';
+
+const displayOptions: IDisplayOptions = {
+	show: {
+		resource: ['row'],
+		operation: [FIELD],
+	},
+};
+
+export const description: INodeProperties[] = [...getSelectFields(displayOptions, true, true)];
+
+export async function execute(
+	this: IExecuteFunctions,
+	index: number,
+): Promise<INodeExecutionData[]> {
+	const dataTableProxy = await getDataTableProxyExecute(this, index);
+	const hits = await executeSelectMany(this, index, dataTableProxy, undefined, 1);
+	return hits.length === 0 ? [this.getInputData()[index]] : [];
+}