You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
127 lines
4.2 KiB
127 lines
4.2 KiB
import {ActiveDoc} from 'app/server/lib/ActiveDoc';
|
|
import {createExcelFormatter} from 'app/server/lib/ExcelFormatter';
|
|
import {ExportData, exportDoc} from 'app/server/lib/Export';
|
|
import {Alignment, Border, Fill, Workbook} from 'exceljs';
|
|
import * as express from 'express';
|
|
import log from 'app/server/lib/log';
|
|
import contentDisposition from 'content-disposition';
|
|
|
|
export interface DownloadXLSXOptions {
|
|
filename: string;
|
|
}
|
|
|
|
/**
|
|
* Converts `activeDoc` to CSV and sends the converted data through `res`.
|
|
*/
|
|
export async function downloadXLSX(activeDoc: ActiveDoc, req: express.Request,
|
|
res: express.Response, {filename}: DownloadXLSXOptions) {
|
|
log.debug(`Generating .xlsx file`);
|
|
const data = await makeXLSX(activeDoc, req);
|
|
res.set('Content-Type', 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
|
|
res.setHeader('Content-Disposition', contentDisposition(filename + '.xlsx'));
|
|
res.send(data);
|
|
log.debug('XLSX file generated');
|
|
}
|
|
|
|
/**
|
|
* Creates excel document with all tables from an active Grist document.
|
|
*/
|
|
export async function makeXLSX(
|
|
activeDoc: ActiveDoc,
|
|
req: express.Request): Promise<ArrayBuffer> {
|
|
const content = await exportDoc(activeDoc, req);
|
|
const data = await convertToExcel(content, req.hostname === 'localhost');
|
|
return data;
|
|
}
|
|
|
|
/**
|
|
* Converts export data to an excel file.
|
|
*/
|
|
async function convertToExcel(tables: ExportData[], testDates: boolean) {
|
|
// Create workbook and add single sheet to it.
|
|
const wb = new Workbook();
|
|
if (testDates) {
|
|
// HACK: for testing, we will keep static dates
|
|
const date = new Date(Date.UTC(2018, 11, 1, 0, 0, 0));
|
|
wb.modified = date;
|
|
wb.created = date;
|
|
wb.lastPrinted = date;
|
|
wb.creator = 'test';
|
|
wb.lastModifiedBy = 'test';
|
|
}
|
|
// Prepare border - some of the cells can have background colors, in that case border will
|
|
// not be visible
|
|
const borderStyle: Border = {
|
|
color: { argb: 'FFE2E2E3' }, // dark gray - default border color for gdrive
|
|
style: 'thin'
|
|
};
|
|
const borders = {
|
|
left: borderStyle,
|
|
right: borderStyle,
|
|
top: borderStyle,
|
|
bottom: borderStyle
|
|
};
|
|
const headerBackground: Fill = {
|
|
type: 'pattern',
|
|
pattern: 'solid',
|
|
fgColor: { argb: 'FFEEEEEE' } // gray
|
|
};
|
|
const headerFontColor = {
|
|
color: {
|
|
argb: 'FF000000' // black
|
|
}
|
|
};
|
|
const centerAlignment: Partial<Alignment> = {
|
|
horizontal: 'center'
|
|
};
|
|
for (const table of tables) {
|
|
const { columns, rowIds, access, tableName } = table;
|
|
const ws = wb.addWorksheet(sanitizeWorksheetName(tableName));
|
|
// Build excel formatters.
|
|
const formatters = columns.map(col => createExcelFormatter(col.type, col.widgetOptions));
|
|
// Generate headers for all columns with correct styles for whole column.
|
|
// Actual header style for a first row will be overwritten later.
|
|
ws.columns = columns.map((col, c) => ({ header: col.label, style: formatters[c].style() }));
|
|
// Populate excel file with data
|
|
rowIds.forEach(row => {
|
|
ws.addRow(access.map((getter, c) => formatters[c].formatAny(getter(row))));
|
|
});
|
|
// style up the header row
|
|
for (let i = 1; i <= columns.length; i++) {
|
|
// apply to all rows (including header)
|
|
ws.getColumn(i).border = borders;
|
|
// apply only to header
|
|
const header = ws.getCell(1, i);
|
|
header.fill = headerBackground;
|
|
header.font = headerFontColor;
|
|
header.alignment = centerAlignment;
|
|
}
|
|
// Make each column a little wider.
|
|
ws.columns.forEach(column => {
|
|
if (!column.header) {
|
|
return;
|
|
}
|
|
// 14 points is about 100 pixels in a default font (point is around 7.5 pixels)
|
|
column.width = column.header.length < 14 ? 14 : column.header.length;
|
|
});
|
|
}
|
|
|
|
return await wb.xlsx.writeBuffer();
|
|
}
|
|
|
|
/**
|
|
* Removes invalid characters, see https://github.com/exceljs/exceljs/pull/1484
|
|
*/
|
|
export function sanitizeWorksheetName(tableName: string): string {
|
|
return tableName
|
|
// Convert invalid characters to spaces
|
|
.replace(/[*?:/\\[\]]/g, ' ')
|
|
|
|
// Collapse multiple spaces into one
|
|
.replace(/\s+/g, ' ')
|
|
|
|
// Trim spaces and single quotes from the ends
|
|
.replace(/^['\s]+/, '')
|
|
.replace(/['\s]+$/, '');
|
|
}
|