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538 lines
12 KiB
TypeScript
538 lines
12 KiB
TypeScript
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import {
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IExecuteFunctions,
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} from 'n8n-core';
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import {
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IDataObject,
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ILoadOptionsFunctions,
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INodeExecutionData,
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INodePropertyOptions,
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INodeType,
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INodeTypeDescription,
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NodeOperationError,
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} from 'n8n-workflow';
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import {
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set,
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} from 'lodash';
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import * as moment from 'moment-timezone';
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export class DateTime implements INodeType {
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description: INodeTypeDescription = {
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displayName: 'Date & Time',
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name: 'dateTime',
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icon: 'fa:clock',
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group: ['transform'],
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version: 1,
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description: 'Allows you to manipulate date and time values',
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subtitle: '={{$parameter["action"]}}',
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defaults: {
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name: 'Date & Time',
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color: '#408000',
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},
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inputs: ['main'],
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outputs: ['main'],
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properties: [
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{
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displayName: 'Action',
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name: 'action',
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type: 'options',
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options: [
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{
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name: 'Calculate a Date',
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description: 'Add or subtract time from a date',
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value: 'calculate',
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},
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{
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name: 'Format a Date',
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description: 'Convert a date to a different format',
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value: 'format',
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},
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],
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default: 'format',
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},
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{
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displayName: 'Value',
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name: 'value',
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displayOptions: {
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show: {
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action: [
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'format',
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],
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},
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},
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type: 'string',
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default: '',
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description: 'The value that should be converted.',
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required: true,
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},
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{
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displayName: 'Property Name',
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name: 'dataPropertyName',
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type: 'string',
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default: 'data',
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required: true,
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displayOptions: {
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show: {
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action: [
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'format',
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],
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},
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},
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description: 'Name of the property to which to write the converted date.',
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},
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{
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displayName: 'Custom Format',
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name: 'custom',
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displayOptions: {
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show: {
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action: [
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'format',
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],
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},
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},
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type: 'boolean',
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default: false,
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description: 'If a predefined format should be selected or custom format entered.',
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},
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{
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displayName: 'To Format',
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name: 'toFormat',
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displayOptions: {
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show: {
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action: [
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'format',
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],
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custom: [
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true,
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],
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},
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},
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type: 'string',
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default: '',
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placeholder: 'YYYY-MM-DD',
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description: 'The format to convert the date to.',
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},
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{
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displayName: 'To Format',
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name: 'toFormat',
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type: 'options',
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displayOptions: {
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show: {
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action: [
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'format',
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],
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custom: [
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false,
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],
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},
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},
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options: [
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{
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name: 'MM/DD/YYYY',
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value: 'MM/DD/YYYY',
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description: 'Example: 09/04/1986',
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},
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{
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name: 'YYYY/MM/DD',
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value: 'YYYY/MM/DD',
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description: 'Example: 1986/04/09',
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},
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{
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name: 'MMMM DD YYYY',
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value: 'MMMM DD YYYY',
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description: 'Example: April 09 1986',
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},
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{
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name: 'MM-DD-YYYY',
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value: 'MM-DD-YYYY',
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description: 'Example: 09-04-1986',
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},
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{
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name: 'YYYY-MM-DD',
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value: 'YYYY-MM-DD',
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description: 'Example: 1986-04-09',
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},
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{
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name: 'Unix Timestamp',
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value: 'X',
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description: 'Example: 513388800.879',
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},
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{
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name: 'Unix Ms Timestamp',
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value: 'x',
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description: 'Example: 513388800',
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},
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],
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default: 'MM/DD/YYYY',
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description: 'The format to convert the date to.',
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},
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{
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displayName: 'Options',
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name: 'options',
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displayOptions: {
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show: {
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action: [
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'format',
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],
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},
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},
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type: 'collection',
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placeholder: 'Add Option',
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default: {},
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options: [
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{
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displayName: 'From Format',
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name: 'fromFormat',
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type: 'string',
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default: '',
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description: 'In case the input format is not recognized you can provide the format ',
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},
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{
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displayName: 'From Timezone',
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name: 'fromTimezone',
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type: 'options',
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typeOptions: {
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loadOptionsMethod: 'getTimezones',
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},
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default: 'UTC',
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description: 'The timezone to convert from.',
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},
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{
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displayName: 'To Timezone',
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name: 'toTimezone',
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type: 'options',
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typeOptions: {
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loadOptionsMethod: 'getTimezones',
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},
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default: 'UTC',
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description: 'The timezone to convert to.',
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},
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],
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},
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{
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displayName: 'Date Value',
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name: 'value',
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displayOptions: {
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show: {
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action: [
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'calculate',
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],
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},
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},
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type: 'string',
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default: '',
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description: 'The date string or timestamp from which you want to add/subtract time.',
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required: true,
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},
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{
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displayName: 'Operation',
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name: 'operation',
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displayOptions: {
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show: {
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action: [
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'calculate',
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],
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},
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},
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type: 'options',
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options: [
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{
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name: 'Add',
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value: 'add',
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description: 'Add time to Date Value',
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},
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{
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name: 'Subtract',
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value: 'subtract',
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description: 'Subtract time from Date Value',
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},
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],
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default: 'add',
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required: true,
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},
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{
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displayName: 'Duration',
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name: 'duration',
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displayOptions: {
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show: {
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action: [
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'calculate',
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],
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},
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},
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type: 'number',
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typeOptions: {
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minValue: 0,
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},
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default: 0,
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required: true,
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description: 'E.g. enter “10” then select “Days” if you want to add 10 days to Date Value.',
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},
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{
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displayName: 'Time Unit',
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name: 'timeUnit',
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description: 'Time unit for Duration parameter above.',
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displayOptions: {
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show: {
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action: [
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'calculate',
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],
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},
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},
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type: 'options',
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options: [
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{
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name: 'Quarters',
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value: 'quarters',
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},
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{
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name: 'Years',
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value: 'years',
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},
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{
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name: 'Months',
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value: 'months',
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},
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{
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name: 'Weeks',
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value: 'weeks',
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},
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{
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name: 'Days',
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value: 'days',
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},
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{
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name: 'Hours',
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value: 'hours',
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},
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{
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name: 'Minutes',
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value: 'minutes',
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},
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{
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name: 'Seconds',
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value: 'seconds',
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},
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{
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name: 'Milliseconds',
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value: 'milliseconds',
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},
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],
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default: 'days',
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required: true,
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},
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{
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displayName: 'Property Name',
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name: 'dataPropertyName',
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type: 'string',
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default: 'data',
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required: true,
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displayOptions: {
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show: {
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action: [
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'calculate',
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],
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},
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},
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description: 'Name of the output property to which to write the converted date.',
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},
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{
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displayName: 'Options',
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name: 'options',
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type: 'collection',
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placeholder: 'Add Option',
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default: {},
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displayOptions: {
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show: {
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action: [
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'calculate',
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],
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},
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},
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options: [
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{
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displayName: 'From Format',
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name: 'fromFormat',
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type: 'string',
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default: '',
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description: 'Format for parsing the value as a date. If unrecognized, specify the <a href="https://docs.n8n.io/nodes/n8n-nodes-base.dateTime/#faqs">format</a> for the value.',
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},
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],
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},
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],
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};
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methods = {
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loadOptions: {
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// Get all the timezones to display them to user so that he can
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// select them easily
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async getTimezones(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
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const returnData: INodePropertyOptions[] = [];
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for (const timezone of moment.tz.names()) {
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const timezoneName = timezone;
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const timezoneId = timezone;
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returnData.push({
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name: timezoneName,
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value: timezoneId,
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});
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}
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return returnData;
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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 items = this.getInputData();
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const length = items.length as unknown as number;
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const returnData: INodeExecutionData[] = [];
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const workflowTimezone = this.getTimezone();
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let item: INodeExecutionData;
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for (let i = 0; i < length; i++) {
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try {
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const action = this.getNodeParameter('action', 0) as string;
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item = items[i];
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if (action === 'format') {
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const currentDate = this.getNodeParameter('value', i) as string;
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const dataPropertyName = this.getNodeParameter('dataPropertyName', i) as string;
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const toFormat = this.getNodeParameter('toFormat', i) as string;
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const options = this.getNodeParameter('options', i) as IDataObject;
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let newDate;
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if (currentDate === undefined) {
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continue;
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}
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if (options.fromFormat === undefined && !moment(currentDate as string | number).isValid()) {
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throw new NodeOperationError(this.getNode(), 'The date input format could not be recognized. Please set the "From Format" field');
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}
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if (Number.isInteger(currentDate as unknown as number)) {
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newDate = moment.unix(currentDate as unknown as number);
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} else {
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if (options.fromTimezone || options.toTimezone) {
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const fromTimezone = options.fromTimezone || workflowTimezone;
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if (options.fromFormat) {
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newDate = moment.tz(currentDate as string, options.fromFormat as string, fromTimezone as string);
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} else {
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newDate = moment.tz(currentDate as string, fromTimezone as string);
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}
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} else {
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if (options.fromFormat) {
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newDate = moment(currentDate as string, options.fromFormat as string);
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} else {
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newDate = moment(currentDate as string);
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}
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}
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}
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if (options.toTimezone || options.fromTimezone) {
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// If either a source or a target timezone got defined the
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// timezone of the date has to be changed. If a target-timezone
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// is set use it else fall back to workflow timezone.
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newDate = newDate.tz(options.toTimezone as string || workflowTimezone);
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}
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newDate = newDate.format(toFormat);
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let newItem: INodeExecutionData;
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if (dataPropertyName.includes('.')) {
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// Uses dot notation so copy all data
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newItem = {
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json: JSON.parse(JSON.stringify(item.json)),
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};
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} else {
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// Does not use dot notation so shallow copy is enough
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newItem = {
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json: { ...item.json },
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};
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}
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if (item.binary !== undefined) {
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newItem.binary = item.binary;
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}
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set(newItem, `json.${dataPropertyName}`, newDate);
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returnData.push(newItem);
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}
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if (action === 'calculate') {
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const dateValue = this.getNodeParameter('value', i) as string;
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const operation = this.getNodeParameter('operation', i) as 'add' | 'subtract';
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const duration = this.getNodeParameter('duration', i) as number;
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const timeUnit = this.getNodeParameter('timeUnit', i) as moment.DurationInputArg2;
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const { fromFormat } = this.getNodeParameter('options', i) as { fromFormat?: string };
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const dataPropertyName = this.getNodeParameter('dataPropertyName', i) as string;
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const newDate = fromFormat
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? parseDateByFormat(dateValue, fromFormat)
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: parseDateByDefault(dateValue);
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operation === 'add'
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? newDate.add(duration, timeUnit).utc().format()
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: newDate.subtract(duration, timeUnit).utc().format();
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let newItem: INodeExecutionData;
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if (dataPropertyName.includes('.')) {
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// Uses dot notation so copy all data
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newItem = {
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json: JSON.parse(JSON.stringify(item.json)),
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};
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} else {
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// Does not use dot notation so shallow copy is enough
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newItem = {
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json: { ...item.json },
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};
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}
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if (item.binary !== undefined) {
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newItem.binary = item.binary;
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}
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set(newItem, `json.${dataPropertyName}`, newDate.toISOString());
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returnData.push(newItem);
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}
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} catch (error) {
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if (this.continueOnFail()) {
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returnData.push({json:{ error: error.message }});
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continue;
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}
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throw error;
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}
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}
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return this.prepareOutputData(returnData);
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}
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}
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function parseDateByFormat(value: string, fromFormat: string) {
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const date = moment(value, fromFormat, true);
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if (moment(date).isValid()) return date;
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throw new Error('Date input cannot be parsed. Please recheck the value and the "From Format" field.');
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}
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function parseDateByDefault(value: string) {
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const isoValue = getIsoValue(value);
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if (moment(isoValue).isValid()) return moment(isoValue);
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throw new Error('Unrecognized date input. Please specify a format in the "From Format" field.');
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}
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function getIsoValue(value: string) {
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try {
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return new Date(value).toISOString(); // may throw due to unpredictable input
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} catch (error) {
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throw new Error('Unrecognized date input. Please specify a format in the "From Format" field.');
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}
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}
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