feat(Item Lists Node): Table tranformation

packages/nodes-base/nodes/ItemLists/ItemLists.node.ts

@@ -49,6 +49,8 @@ const shuffleArray = (array: any[]) => {
 	}
 };
 
+import * as summarize from './summarize.operation';
+
 export class ItemLists implements INodeType {
 	description: INodeTypeDescription = {
 		displayName: 'Item Lists',
@@ -84,10 +86,10 @@ export class ItemLists implements INodeType {
 				noDataExpression: true,
 				options: [
 					{
-						name: 'Aggregate Items',
+						name: 'Concatenate Items',
 						value: 'aggregateItems',
-						description: 'Combine fields into a single new item',
-						action: 'Combine fields into a single new item',
+						description: 'Combine fields into a list in a single new item',
+						action: 'Combine fields into a list in a single new item',
 					},
 					{
 						name: 'Limit',
@@ -113,11 +115,16 @@ export class ItemLists implements INodeType {
 						description: 'Turn a list inside item(s) into separate items',
 						action: 'Turn a list inside item(s) into separate items',
 					},
+					{
+						name: 'Summarize',
+						value: 'summarize',
+						description: 'Aggregate items together (pivot table)',
+						action: 'Aggregate items together (pivot table)',
+					},
 				],
 				default: 'splitOutItems',
 			},
 			// Split out items - Fields
-
 			{
 				displayName: 'Field To Split Out',
 				name: 'fieldToSplitOut',
@@ -765,6 +772,8 @@ return 0;`,
 					},
 				],
 			},
+			// Remove duplicates - Fields
+			...summarize.description,
 		],
 	};
 
@@ -1388,6 +1397,8 @@ return 0;`,
 					newItems = items.slice(items.length - maxItems, items.length);
 				}
 				return this.prepareOutputData(newItems);
+			} else if (operation === 'summarize') {
+				return summarize.execute.call(this, items);
 			} else {
 				throw new NodeOperationError(this.getNode(), `Operation '${operation}' is not recognized`);
 			}