mirror of
https://github.com/n8n-io/n8n.git
synced 2024-12-27 13:39:44 -08:00
87 lines
2.4 KiB
TypeScript
87 lines
2.4 KiB
TypeScript
import type {
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IDataObject,
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IExecuteFunctions,
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INodeExecutionData,
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INodeProperties,
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} from 'n8n-workflow';
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import { NodeOperationError } from 'n8n-workflow';
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import { getResolvables, updateDisplayOptions } from '@utils/utilities';
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import type { PgpDatabase, QueriesRunner, QueryWithValues } from '../../helpers/interfaces';
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import { replaceEmptyStringsByNulls } from '../../helpers/utils';
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import { optionsCollection } from '../common.descriptions';
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const properties: INodeProperties[] = [
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{
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displayName: 'Query',
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name: 'query',
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type: 'string',
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default: '',
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placeholder: 'e.g. SELECT id, name FROM product WHERE quantity > $1 AND price <= $2',
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noDataExpression: true,
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required: true,
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description:
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"The SQL query to execute. You can use n8n expressions and $1, $2, $3, etc to refer to the 'Query Parameters' set in options below.",
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typeOptions: {
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editor: 'sqlEditor',
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sqlDialect: 'PostgreSQL',
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},
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hint: 'Consider using query parameters to prevent SQL injection attacks. Add them in the options below',
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},
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optionsCollection,
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];
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const displayOptions = {
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show: {
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resource: ['database'],
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operation: ['executeQuery'],
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},
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};
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export const description = updateDisplayOptions(displayOptions, properties);
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export async function execute(
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this: IExecuteFunctions,
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runQueries: QueriesRunner,
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items: INodeExecutionData[],
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nodeOptions: IDataObject,
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_db?: PgpDatabase,
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): Promise<INodeExecutionData[]> {
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items = replaceEmptyStringsByNulls(items, nodeOptions.replaceEmptyStrings as boolean);
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const queries: QueryWithValues[] = [];
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for (let i = 0; i < items.length; i++) {
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let query = this.getNodeParameter('query', i) as string;
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for (const resolvable of getResolvables(query)) {
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query = query.replace(resolvable, this.evaluateExpression(resolvable, i) as string);
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}
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let values: IDataObject[] = [];
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let queryReplacement = this.getNodeParameter('options.queryReplacement', i, '');
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if (typeof queryReplacement === 'string') {
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queryReplacement = queryReplacement.split(',').map((entry) => entry.trim());
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}
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if (Array.isArray(queryReplacement)) {
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values = queryReplacement as IDataObject[];
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} else {
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throw new NodeOperationError(
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this.getNode(),
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'Query Replacement must be a string of comma-separated values, or an array of values',
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{ itemIndex: i },
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);
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}
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queries.push({ query, values });
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}
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return runQueries(queries, items, nodeOptions);
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}
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