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use os.path.join to create paths for pdf files

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Stephan Telling 2017-04-30 11:28:10 +02:00
parent 61b670931c
commit 16eb7cf594
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1 changed files with 17 additions and 13 deletions
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30
src/shop/pdf.py
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@ -3,7 +3,9 @@ from wkhtmltopdf.views import PDFTemplateResponse
from PyPDF2 import PdfFileWriter, PdfFileReader from PyPDF2 import PdfFileWriter, PdfFileReader
from django.test.client import RequestFactory from django.test.client import RequestFactory
from django.conf import settings from django.conf import settings
import io, logging import logging
import io
import os
logger = logging.getLogger("bornhack.%s" % __name__) logger = logging.getLogger("bornhack.%s" % __name__)
@ -13,10 +15,10 @@ def generate_pdf_letter(filename, template, formatdict):
request.user = AnonymousUser() request.user = AnonymousUser()
request.session = {} request.session = {}
### produce text-only PDF from template # produce text-only PDF from template
pdfgenerator = PDFTemplateResponse( pdfgenerator = PDFTemplateResponse(
request=request, request=request,
template=template, template=template,
context=formatdict, context=formatdict,
cmd_options={ cmd_options={
'margin-top': 50, 'margin-top': 50,
@ -26,33 +28,35 @@ def generate_pdf_letter(filename, template, formatdict):
textonlypdf = io.BytesIO() textonlypdf = io.BytesIO()
textonlypdf.write(pdfgenerator.rendered_content) textonlypdf.write(pdfgenerator.rendered_content)
### create a blank pdf to work with # create a blank pdf to work with
finalpdf = PdfFileWriter() finalpdf = PdfFileWriter()
### open the text-only pdf # open the text-only pdf
pdfreader = PdfFileReader(textonlypdf) pdfreader = PdfFileReader(textonlypdf)
### get watermark from watermark file # get watermark from watermark file
watermark = PdfFileReader(open("%s/pdf/%s" % (settings.STATICFILES_DIRS[0], settings.PDF_LETTERHEAD_FILENAME), 'rb')) watermark = PdfFileReader(
open(os.path.join(settings.STATICFILES_DIRS[0], 'pdf', settings.PDF_LETTERHEAD_FILENAME), 'rb')
)
### add the watermark to all pages # add the watermark to all pages
for pagenum in range(pdfreader.getNumPages()): for pagenum in range(pdfreader.getNumPages()):
page = watermark.getPage(0) page = watermark.getPage(0)
try: try:
page.mergePage(pdfreader.getPage(pagenum)) page.mergePage(pdfreader.getPage(pagenum))
except ValueError: except ValueError:
### watermark pdf might be broken? # watermark pdf might be broken?
return False return False
### add page to output # add page to output
finalpdf.addPage(page) finalpdf.addPage(page)
### save the generated pdf to the archive # save the generated pdf to the archive
fullpath = settings.PDF_ARCHIVE_PATH+filename fullpath = os.path.join(settings.PDF_ARCHIVE_PATH, filename)
with open(fullpath, 'wb') as fh: with open(fullpath, 'wb') as fh:
finalpdf.write(fh) finalpdf.write(fh)
logger.info('Saved pdf to archive: %s' % fullpath) logger.info('Saved pdf to archive: %s' % fullpath)
### return a file object with the data # return a file object with the data
returnfile = io.BytesIO() returnfile = io.BytesIO()
finalpdf.write(returnfile) finalpdf.write(returnfile)
return returnfile return returnfile