@geogirafe/lib-geoportal/tools/export/csvmanager.js

GeoGirafe is a flexible application to build online geoportals.

import { download } from './download';
import GirafeSingleton from '../../base/GirafeSingleton';
import ConfigManager from '../configuration/configmanager';
import I18nManager from '../i18n/i18nmanager';
export default class CsvManager extends GirafeSingleton {
    constructor(type) {
        super(type);
        Object.defineProperty(this, "configManager", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: void 0
        });
        Object.defineProperty(this, "i18nManager", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: void 0
        });
        this.i18nManager = I18nManager.getInstance();
        this.configManager = ConfigManager.getInstance();
    }
    get config() {
        return this.configManager.Config;
    }
    /**
     * Generate a CSV.
     * @param data Entries/objects to include in the CSV.
     * @param columnDefs Column definitions.
     * @returns The CSV file as string.
     */
    generateCsv(data, columnDefs) {
        if (data.length == 0 || columnDefs.length == 0) {
            return '';
        }
        const translatedColumnHeaders = columnDefs.map((columnHeader) => this.i18nManager.getTranslation(columnHeader.name));
        const header = this.getRow(translatedColumnHeaders);
        const dataRows = data.map((values) => {
            const rowValues = columnDefs.map((columnHeader) => values[columnHeader.name]);
            return this.getRow(rowValues);
        });
        return this.config.csv.includeHeader ? header + dataRows.join('') : dataRows.join('');
    }
    /**
     * @param values Values.
     * @returns CSV row.
     */
    getRow(values) {
        const matchAllQuotesRegex = new RegExp(this.config.csv.quote, 'g');
        const doubleQuote = this.config.csv.quote + this.config.csv.quote;
        const rowValues = values.map((value) => {
            if (value !== undefined && value !== null) {
                const strValue = `${value}`;
                // wrap each value into quotes and escape quotes with double quotes
                return `${this.config.csv.quote}${strValue.replace(matchAllQuotesRegex, doubleQuote)}${this.config.csv.quote}`;
            }
            else {
                return '';
            }
        });
        return `${rowValues.join(this.config.csv.separator)}\n`;
    }
    /**
     * Generate a CSV and start a download with the generated file.
     * @param data Entries/objects to include in the CSV.
     * @param columnDefs Column definitions.
     * @param fileName The CSV file name, without the extension.
     */
    startDownload(data, columnDefs, fileName) {
        const fileContent = this.generateCsv(data, columnDefs);
        download(fileContent, fileName, `text/csv;charset=${this.config.csv.encoding}`);
    }
}