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@gamariverib/mercados-pecuarios-libs-excel-db-files

v0.2.0

Published

Biblioteca de clases para la creación y manipulación de los archivos de bases de datos en Excel

Downloads

33

Readme

excel-db-files

Biblioteca de clases para la creación y manipulación de los archivos de bases de datos en Excel.

Esta biblioteca proporciona un conjunto de clases orientadas a objetos para construir y manipular archivos de Excel (.xlsx) de una manera estructurada.

Instalación

npm install @gamariverib/mercados-pecuarios-libs-excel-db-files

Uso Básico

La biblioteca ahora se centra en dos clases principales: Workbook y Worksheet.

Crear un nuevo Workbook y añadir Worksheets

Puedes crear un libro de trabajo y añadirle hojas de cálculo de forma fluida.

import { Workbook, Worksheet } from '@gamariverib/mercados-pecuarios-libs-excel-db-files';
import { writeFile } from 'xlsx';

// 1. Crear un nuevo Workbook
const workbook = new Workbook('MiLibroDeTrabajo');

// 2. Crear y configurar una Worksheet
const worksheet1 = new Worksheet('Primera Hoja');
worksheet1
  .addMetadata('Author', 'Gemini')
  .addGlobalTag('Project', 'Modernización')
  .setHeader(['ID', 'Nombre', 'Valor'])
  .addRow([1, 'Producto A', 100])
  .addRow([2, 'Producto B', 200]);

// 3. Añadir la worksheet al workbook
workbook.addWorksheet(worksheet1);

// 4. (Opcional) Convertir a un objeto JSON para serialización
const json = workbook.toJSON();
console.log(JSON.stringify(json, null, 2));

// Para generar el archivo .xlsx, necesitarás una lógica de conversión
// que tome el `IWorkbookData` de `workbook.toJSON()` y lo convierta
// a un objeto `WorkBook` de la librería `xlsx`.
// (Esta parte de la conversión no está actualmente en la API pública de la librería)

Cargar desde un JSON

Puedes crear una instancia de un Workbook a partir de una estructura de datos JSON existente.

import { Workbook, IWorkbookData } from '@gamariverib/mercados-pecuarios-libs-excel-db-files';

const data: IWorkbookData = {
  name: 'LibroDesdeJSON',
  worksheets: [
    {
      name: 'Hoja1',
      metadata: { CreadoPor: 'Test' },
      globalTags: {},
      data: [
        ['Col1', 'Col2'],
        ['a', 'b'],
      ],
    },
  ],
};

const workbook = Workbook.fromJSON(data);

console.log(workbook.name); // "LibroDesdeJSON"
console.log(workbook.worksheets[0].name); // "Hoja1"

API

Clase Worksheet

  • constructor(name: string, data?: Partial<IWorksheetData>)
  • addRow(row: any[], atTop?: boolean): this
  • setHeader(headers: string[]): this
  • addMetadata(key: string, value: any): this
  • addGlobalTag(key: string, value: any): this
  • toJSON(): IWorksheetData
  • static fromJSON(data: IWorksheetData): Worksheet

Clase Workbook

  • constructor(name: string)
  • addWorksheet(worksheet: Worksheet): this
  • toJSON(): IWorkbookData
  • static fromJSON(data: IWorkbookData): Workbook