first commit

packages/nodes-base/nodes/DataTable/common/addRow.ts

@@ -0,0 +1,62 @@
+import {
+	DATA_TABLE_SYSTEM_COLUMNS,
+	type IDataObject,
+	type IDisplayOptions,
+	type IExecuteFunctions,
+	type INodeProperties,
+} from 'n8n-workflow';
+
+import { DATA_TABLE_ID_FIELD } from './fields';
+import { dataObjectToApiInput } from './utils';
+
+export function makeAddRow(operation: string, displayOptions: IDisplayOptions) {
+	return {
+		displayName: 'Columns',
+		name: 'columns',
+		type: 'resourceMapper',
+		default: {
+			mappingMode: 'defineBelow',
+			value: null,
+		},
+		noDataExpression: true,
+		required: true,
+		typeOptions: {
+			loadOptionsDependsOn: [`${DATA_TABLE_ID_FIELD}.value`],
+			resourceMapper: {
+				valuesLabel: `Values to ${operation}`,
+				resourceMapperMethod: 'getDataTables',
+				mode: 'add',
+				fieldWords: {
+					singular: 'column',
+					plural: 'columns',
+				},
+				addAllFields: true,
+				multiKeyMatch: true,
+				hideNoDataError: true,
+			},
+		},
+		displayOptions,
+	} satisfies INodeProperties;
+}
+
+export function getAddRow(ctx: IExecuteFunctions, index: number) {
+	const items = ctx.getInputData();
+	const dataMode = ctx.getNodeParameter('columns.mappingMode', index) as string;
+
+	let data: IDataObject;
+
+	if (dataMode === 'autoMapInputData') {
+		data = { ...items[index].json };
+		// We automatically remove our system columns for better UX when feeding data table outputs
+		// into another data table node
+		for (const systemColumn of DATA_TABLE_SYSTEM_COLUMNS) {
+			delete data[systemColumn];
+		}
+	} else {
+		const fields = ctx.getNodeParameter('columns.value', index, {}) as IDataObject;
+
+		data = fields;
+	}
+
+	return dataObjectToApiInput(data, ctx.getNode(), index);
+}