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

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2019-06-23 03:35:23 -07:00
import { IExecuteFunctions } from 'n8n-core';
import {
INodeExecutionData,
INodeType,
INodeTypeDescription,
} from 'n8n-workflow';
import {
get,
set,
unset,
} from 'lodash';
interface IRenameKey {
currentKey: string;
newKey: string;
}
export class RenameKeys implements INodeType {
description: INodeTypeDescription = {
displayName: 'Rename Keys',
name: 'renameKeys',
group: ['transform'],
version: 1,
description: 'Renames keys.',
defaults: {
name: 'Rename Keys',
color: '#772244',
},
inputs: ['main'],
outputs: ['main'],
properties: [
{
displayName: 'Keys',
name: 'keys',
placeholder: 'Add new key',
description: 'Adds a key which should be renamed.',
type: 'fixedCollection',
typeOptions: {
multipleValues: true,
},
default: {},
options: [
{
displayName: 'Key',
name: 'key',
values: [
{
displayName: 'Current Key Name',
name: 'currentKey',
type: 'string',
default: '',
placeholder: 'currentKey',
description: 'The current name of the key. It is also possible to define deep keys by using dot-notation like for example: "level1.level2.currentKey"',
},
{
displayName: 'New Key Name',
name: 'newKey',
type: 'string',
default: '',
placeholder: 'newKey',
description: 'the name the key should be renamed to. It is also possible to define deep keys by using dot-notation like for example: "level1.level2.newKey"',
},
]
},
],
}
]
};
async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
const items = this.getInputData();
let item: INodeExecutionData;
let renameKeys: IRenameKey[];
let value: any; // tslint:disable-line:no-any
for (let itemIndex = 0; itemIndex < items.length; itemIndex++) {
renameKeys = this.getNodeParameter('keys.key', itemIndex, []) as IRenameKey[];
item = items[itemIndex];
renameKeys.forEach((renameKey) => {
if (renameKey.currentKey === '' || renameKey.newKey === '') {
// Ignore all which do not have all the values set
return;
}
value = get(item.json, renameKey.currentKey as string);
if (value === undefined) {
return;
}
set(item.json, renameKey.newKey, value);
unset(item.json, renameKey.currentKey as string);
});
}
return this.prepareOutputData(items);
}
}