first commit

packages/nodes-base/nodes/MySql/v2/actions/database/deleteTable.operation.ts

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+import type { IExecuteFunctions, INodeExecutionData, INodeProperties } from 'n8n-workflow';
+import { NodeOperationError } from 'n8n-workflow';
+
+import { updateDisplayOptions } from '@utils/utilities';
+
+import type { QueryRunner, QueryValues, QueryWithValues } from '../../helpers/interfaces';
+import { addWhereClauses, escapeSqlIdentifier, getWhereClauses } from '../../helpers/utils';
+import {
+	optionsCollection,
+	selectRowsFixedCollection,
+	combineConditionsCollection,
+} from '../common.descriptions';
+
+const properties: INodeProperties[] = [
+	{
+		displayName: 'Command',
+		name: 'deleteCommand',
+		type: 'options',
+		default: 'truncate',
+		options: [
+			{
+				name: 'Truncate',
+				value: 'truncate',
+				description: "Only removes the table's data and preserves the table's structure",
+			},
+			{
+				name: 'Delete',
+				value: 'delete',
+				description:
+					"Delete the rows that match the 'Select Rows' conditions below. If no selection is made, all rows in the table are deleted.",
+			},
+			{
+				name: 'Drop',
+				value: 'drop',
+				description: "Deletes the table's data and also the table's structure permanently",
+			},
+		],
+	},
+	{
+		...selectRowsFixedCollection,
+		displayOptions: {
+			show: {
+				deleteCommand: ['delete'],
+			},
+		},
+	},
+	{
+		...combineConditionsCollection,
+		displayOptions: {
+			show: {
+				deleteCommand: ['delete'],
+			},
+		},
+	},
+	optionsCollection,
+];
+
+const displayOptions = {
+	show: {
+		resource: ['database'],
+		operation: ['deleteTable'],
+	},
+	hide: {
+		table: [''],
+	},
+};
+
+export const description = updateDisplayOptions(displayOptions, properties);
+
+export async function execute(
+	this: IExecuteFunctions,
+	inputItems: INodeExecutionData[],
+	runQueries: QueryRunner,
+): Promise<INodeExecutionData[]> {
+	let returnData: INodeExecutionData[] = [];
+
+	const queries: QueryWithValues[] = [];
+
+	for (let i = 0; i < inputItems.length; i++) {
+		const table = this.getNodeParameter('table', i, undefined, {
+			extractValue: true,
+		}) as string;
+
+		const deleteCommand = this.getNodeParameter('deleteCommand', i) as string;
+
+		let query = '';
+		let values: QueryValues = [];
+
+		if (deleteCommand === 'drop') {
+			query = `DROP TABLE IF EXISTS ${escapeSqlIdentifier(table)}`;
+		}
+
+		if (deleteCommand === 'truncate') {
+			query = `TRUNCATE TABLE ${escapeSqlIdentifier(table)}`;
+		}
+
+		if (deleteCommand === 'delete') {
+			const whereClauses = getWhereClauses(this, i);
+
+			const combineConditions = this.getNodeParameter('combineConditions', i, 'AND') as string;
+
+			[query, values] = addWhereClauses(
+				this.getNode(),
+				i,
+				`DELETE FROM ${escapeSqlIdentifier(table)}`,
+				whereClauses,
+				values,
+				combineConditions,
+			);
+		}
+
+		if (query === '') {
+			throw new NodeOperationError(
+				this.getNode(),
+				'Invalid delete command, only drop, delete and truncate are supported ',
+				{ itemIndex: i },
+			);
+		}
+
+		const queryWithValues = { query, values };
+
+		queries.push(queryWithValues);
+	}
+
+	returnData = await runQueries(queries);
+
+	return returnData;
+}