n8n/packages/nodes-base/nodes/DateTime.node.ts

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import * as moment from 'moment-timezone';
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import { set } from 'lodash';
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import { IExecuteFunctions } from 'n8n-core';
import {
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IDataObject,
ILoadOptionsFunctions,
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INodeExecutionData,
INodeType,
INodeTypeDescription,
INodePropertyOptions,
} from 'n8n-workflow';
export class DateTime implements INodeType {
description: INodeTypeDescription = {
displayName: 'Date & Time',
name: 'dateTime',
icon: 'fa:calendar',
group: ['transform'],
version: 1,
description: 'Allows you to manipulate date and time values',
defaults: {
name: 'Date & Time',
color: '#408000',
},
inputs: ['main'],
outputs: ['main'],
properties: [
{
displayName: 'Action',
name: 'action',
type: 'options',
options: [
{
name: 'Format a Date',
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description: 'Convert a date to a different format',
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value: 'format'
},
],
default: 'format',
},
{
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displayName: 'Value',
name: 'value',
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displayOptions: {
show: {
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action: [
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'format',
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],
},
},
type: 'string',
default: '',
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description: 'The value that should be converted.',
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required: true,
},
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{
displayName: 'Property Name',
name: 'dataPropertyName',
type: 'string',
default: 'data',
required: true,
displayOptions: {
show: {
action: [
'format',
],
},
},
description: 'Name of the property to which to write the converted date.',
},
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{
displayName: 'Custom Format',
name: 'custom',
displayOptions: {
show: {
action:[
'format',
],
},
},
type: 'boolean',
default: false,
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description: 'If a predefined format should be selected or custom format entered.',
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},
{
displayName: 'To Format',
name: 'toFormat',
displayOptions: {
show: {
action:[
'format',
],
custom: [
true,
],
},
},
type: 'string',
default: '',
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placeholder: 'YYYY-MM-DD',
description: 'The format to convert the date to.',
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},
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{
displayName: 'To Format',
name: 'toFormat',
type: 'options',
displayOptions: {
show: {
action:[
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'format',
],
custom:[
false,
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],
},
},
options: [
{
name: 'MM/DD/YYYY',
value: 'MM/DD/YYYY',
description: 'Example: 09/04/1986',
},
{
name: 'YYYY/MM/DD',
value: 'YYYY/MM/DD',
description: 'Example: 1986/04/09',
},
{
name: 'MMMM DD YYYY',
value: 'MMMM DD YYYY',
description: 'Example: April 09 1986',
},
{
name: 'MM-DD-YYYY',
value: 'MM-DD-YYYY',
description: 'Example: 09-04-1986',
},
{
name: 'YYYY-MM-DD',
value: 'YYYY-MM-DD',
description: 'Example: 1986-04-09',
},
{
name: 'Unix Timestamp',
value: 'X',
description: 'Example: 513388800.879',
},
{
name: 'Unix Ms Timestamp',
value: 'x',
description: 'Example: 513388800',
},
],
default: 'MM/DD/YYYY',
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description: 'The format to convert the date to.',
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},
{
displayName: 'Options',
name: 'options',
displayOptions: {
show: {
action:[
'format'
],
},
},
type: 'collection',
placeholder: 'Add Option',
default: {},
options: [
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{
displayName: 'From Format',
name: 'fromFormat',
type: 'string',
default: '',
description: 'In case the input format is not recognized you can provide the format ',
},
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{
displayName: 'From Timezone',
name: 'fromTimezone',
type: 'options',
typeOptions: {
loadOptionsMethod: 'getTimezones',
},
default: 'UTC',
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description: 'The timezone to convert from.',
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},
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{
displayName: 'To Timezone',
name: 'toTimezone',
type: 'options',
typeOptions: {
loadOptionsMethod: 'getTimezones',
},
default: 'UTC',
description: 'The timezone to convert to.',
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},
],
},
],
};
methods = {
loadOptions: {
// Get all the timezones to display them to user so that he can
// select them easily
async getTimezones(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
const returnData: INodePropertyOptions[] = [];
for (const timezone of moment.tz.names()) {
const timezoneName = timezone;
const timezoneId = timezone;
returnData.push({
name: timezoneName,
value: timezoneId,
});
}
return returnData;
},
}
};
async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
const items = this.getInputData();
const length = items.length as unknown as number;
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const returnData: INodeExecutionData[] = [];
const workflowTimezone = this.getTimezone();
let item: INodeExecutionData;
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for (let i = 0; i < length; i++) {
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;
const dataPropertyName = this.getNodeParameter('dataPropertyName', i) as string;
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const toFormat = this.getNodeParameter('toFormat', i) as string;
const options = this.getNodeParameter('options', i) as IDataObject;
let newDate;
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if (currentDate === undefined) {
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continue;
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}
if (options.fromFormat === undefined && !moment(currentDate as string | number).isValid()) {
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throw new Error('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)) {
newDate = moment.unix(currentDate as unknown as number);
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} else {
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if (options.fromTimezone || options.toTimezone) {
const fromTimezone = options.fromTimezone || workflowTimezone;
if (options.fromFormat) {
newDate = moment.tz(currentDate as string, options.fromFormat as string, fromTimezone as string);
} else {
newDate = moment.tz(currentDate as string, fromTimezone as string);
}
} else {
if (options.fromFormat) {
newDate = moment(currentDate as string, options.fromFormat as string);
} else {
newDate = moment(currentDate as string);
}
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}
}
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if (options.toTimezone || options.fromTimezone) {
// If either a source or a target timezone got defined the
// timezone of the date has to be changed. If a target-timezone
// is set use it else fall back to workflow timezone.
newDate = newDate.tz(options.toTimezone as string || workflowTimezone);
}
newDate = newDate.format(toFormat);
let newItem: INodeExecutionData;
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if (dataPropertyName.includes('.')) {
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// Uses dot notation so copy all data
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
newItem = {
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json: { ...item.json },
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};
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}
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if (item.binary !== undefined) {
newItem.binary = item.binary;
}
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set(newItem, `json.${dataPropertyName}`, newDate);
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returnData.push(newItem);
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}
}
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return this.prepareOutputData(returnData);
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}
}