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Initial commit to release
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Jan Oberhauser
302
packages/nodes-base/nodes/If.node.ts
Normal file
302
packages/nodes-base/nodes/If.node.ts
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import { IExecuteFunctions } from 'n8n-core';
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import {
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INodeExecutionData,
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INodeParameters,
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INodeType,
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INodeTypeDescription,
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NodeParameterValue,
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} from 'n8n-workflow';
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export class If implements INodeType {
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description: INodeTypeDescription = {
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displayName: 'IF',
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name: 'if',
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group: ['transform'],
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version: 1,
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description: 'Splits a stream depending on defined compare operations.',
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defaults: {
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name: 'IF',
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color: '#408000',
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},
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inputs: ['main'],
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outputs: ['main', 'main'],
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outputNames: ['true', 'false'],
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properties: [
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{
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displayName: 'Conditions',
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name: 'conditions',
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placeholder: 'Add Condition',
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type: 'fixedCollection',
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typeOptions: {
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multipleValues: true,
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},
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description: 'The type of values to compare.',
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default: {},
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options: [
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{
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name: 'boolean',
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displayName: 'Boolean',
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values: [
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{
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displayName: 'Value 1',
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name: 'value1',
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type: 'boolean',
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default: false,
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description: 'The value to compare with the second one.',
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},
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{
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displayName: 'Operation',
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name: 'operation',
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type: 'options',
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options: [
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{
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name: 'Equal',
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value: 'equal'
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},
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{
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name: 'Not Equal',
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value: 'notEqual'
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},
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],
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default: 'equal',
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description: 'Operation to decide where the the data should be mapped to.',
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},
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{
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displayName: 'Value 2',
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name: 'value2',
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type: 'boolean',
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default: false,
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description: 'The value to compare with the first one.',
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},
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],
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},
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{
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name: 'number',
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displayName: 'Number',
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values: [
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{
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displayName: 'Value 1',
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name: 'value1',
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type: 'number',
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default: 0,
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description: 'The value to compare with the second one.',
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},
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{
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displayName: 'Operation',
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name: 'operation',
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type: 'options',
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options: [
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{
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name: 'Smaller',
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value: 'smaller'
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},
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{
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name: 'Equal',
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value: 'equal'
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},
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{
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name: 'Not Equal',
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value: 'notEqual'
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},
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{
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name: 'Larger',
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value: 'larger'
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},
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],
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default: 'smaller',
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description: 'Operation to decide where the the data should be mapped to.',
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},
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{
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displayName: 'Value 2',
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name: 'value2',
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type: 'number',
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default: 0,
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description: 'The value to compare with the first one.',
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},
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],
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},
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{
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name: 'string',
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displayName: 'String',
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values: [
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{
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displayName: 'Value 1',
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name: 'value1',
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type: 'string',
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default: '',
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description: 'The value to compare with the second one.',
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},
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{
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displayName: 'Operation',
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name: 'operation',
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type: 'options',
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options: [
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{
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name: 'Contains',
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value: 'contains'
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},
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{
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name: 'Equal',
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value: 'equal'
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},
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{
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name: 'Not Contains',
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value: 'notContains'
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},
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{
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name: 'Not Equal',
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value: 'notEqual'
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},
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{
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name: 'Regex',
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value: 'regex'
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},
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],
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default: 'equal',
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description: 'Operation to decide where the the data should be mapped to.',
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},
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{
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displayName: 'Value 2',
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name: 'value2',
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type: 'string',
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displayOptions: {
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hide: {
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operation: [
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'regex',
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],
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},
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},
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default: '',
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description: 'The value to compare with the first one.',
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},
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{
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displayName: 'Regex',
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name: 'value2',
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type: 'string',
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displayOptions: {
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show: {
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operation: [
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'regex',
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],
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},
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},
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default: '',
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placeholder: '/text/i',
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description: 'The regex which has to match.',
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},
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],
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},
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],
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},
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{
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displayName: 'Combine',
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name: 'combineOperation',
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type: 'options',
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options: [
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{
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name: 'ALL',
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description: 'Only if all conditions are meet it goes into "true" branch.',
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value: 'all'
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},
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{
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name: 'ANY',
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description: 'If any of the conditions is meet it goes into "true" branch.',
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value: 'any'
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},
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],
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default: 'all',
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description: 'If multiple rules got set this settings decides if it is true as soon as ANY condition matches or only if ALL get meet.',
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},
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],
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};
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async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
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const returnDataTrue: INodeExecutionData[] = [];
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const returnDataFalse: INodeExecutionData[] = [];
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const items = this.getInputData();
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let item: INodeExecutionData;
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let combineOperation: string;
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// The compare operations
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const compareOperationFunctions: {
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[key: string]: (value1: NodeParameterValue, value2: NodeParameterValue) => boolean;
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} = {
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contains: (value1: NodeParameterValue, value2: NodeParameterValue) => value1.toString().includes(value2.toString()),
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notContains: (value1: NodeParameterValue, value2: NodeParameterValue) => !value1.toString().includes(value2.toString()),
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equal: (value1: NodeParameterValue, value2: NodeParameterValue) => value1 === value2,
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notEqual: (value1: NodeParameterValue, value2: NodeParameterValue) => value1 !== value2,
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larger: (value1: NodeParameterValue, value2: NodeParameterValue) => value1 > value2,
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smaller: (value1: NodeParameterValue, value2: NodeParameterValue) => value1 < value2,
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regex: (value1: NodeParameterValue, value2: NodeParameterValue) => {
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const regexMatch = value2.toString().match(new RegExp('^/(.*?)/([gimy]*)$'));
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let regex: RegExp;
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if (!regexMatch) {
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regex = new RegExp(value2.toString());
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} else if (regexMatch.length === 1) {
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regex = new RegExp(regexMatch[1]);
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} else {
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regex = new RegExp(regexMatch[1], regexMatch[2]);
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}
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return !!value1.toString().match(regex);
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},
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};
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// The different dataTypes to check the values in
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const dataTypes = [
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'boolean',
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'number',
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'string',
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];
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// Itterate over all items to check which ones should be output as via output "true" and
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// which ones via output "false"
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let dataType: string;
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let compareOperationResult: boolean;
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itemLoop:
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for (let itemIndex = 0; itemIndex < items.length; itemIndex++) {
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item = items[itemIndex];
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let compareData: INodeParameters;
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combineOperation = this.getNodeParameter('combineOperation', itemIndex) as string;
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// Check all the values of the different dataTypes
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for (dataType of dataTypes) {
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// Check all the values of the current dataType
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for (compareData of this.getNodeParameter(`conditions.${dataType}`, itemIndex, []) as INodeParameters[]) {
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// Check if the values passes
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compareOperationResult = compareOperationFunctions[compareData.operation as string](compareData.value1 as NodeParameterValue, compareData.value2 as NodeParameterValue);
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if (compareOperationResult === true && combineOperation === 'any') {
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// If it passes and the operation is "any" we do not have to check any
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// other ones as it should pass anyway. So go on with the next item.
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returnDataTrue.push(item);
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continue itemLoop;
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} else if (compareOperationResult === false && combineOperation === 'all') {
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// If it fails and the operation is "all" we do not have to check any
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// other ones as it should be not pass anyway. So go on with the next item.
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returnDataFalse.push(item);
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continue itemLoop;
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}
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}
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}
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if (combineOperation === 'all') {
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// If the operation is "all" it means the item did match all conditions
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// so it passes.
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returnDataTrue.push(item);
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} else {
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// If the operation is "any" it means the the item did not match any condition.
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returnDataFalse.push(item);
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}
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}
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return [returnDataTrue, returnDataFalse];
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}
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}
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