How to make Pisa friends with Cyrillic?

M

ma3xak2018-06-05 20:35:19

Django

ma3xak, 2018-06-05 20:35:19

Hello everyone, I can’t figure out how to make Pisa with Cyrillic, for printing pdf, I’m trying to connect the font but it doesn’t work.
How to be?

# encoding: utf-8
from io import BytesIO
from django.http import HttpResponse
from django.template.loader import get_template

from xhtml2pdf import pisa 

def render_pdf(url_template, contexto = {}):
  template = get_template(url_template)
  html = template.render(contexto)
  result = BytesIO()
  pdf = pisa.pisaDocument(html.encode('UTF-8'), result, encodind = 'UTF-8')
  if not pdf.err:
    return HttpResponse(result.getvalue(), content_type = "application/pdf")
  return None

from __future__ import unicode_literals

from django.shortcuts import render
from django.views.generic import View
# Create your views here.
from django.http import HttpResponse
from mi_pdf.utileria  import render_pdf 

class PDFPrueba(View):
  '''
  Пишем вывод пдф
  '''
  def get(self, request, *args, **kwargs): 
    pdf = render_pdf("profiles/dogovor/dogovor.html")
    return HttpResponse(pdf ,content_type = "application/pdf")

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Document</title>
  <style>
    @font-face { font-family: Arial; src: url("profiles/dogovor/arial.ttf"); }
    body{
      font-family: Arial;
    }
  </style>

How can I not understand. I get squares in pdf

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1 answer(s)

S

Sergey Gornostaev, 2018-06-05
@ma3xak

The renderer can't load links itself, so it can't get the profiles/dogovor/arial.ttf font. The pisaDocument function has a link_callback parameter, to which you can pass a function that converts http addresses to local paths. For example this one:

def fetch_pdf_resources(uri, rel):
    if uri.find(settings.MEDIA_URL) != -1:
        path = os.path.join(settings.MEDIA_ROOT, uri.replace(settings.MEDIA_URL, ''))
    elif uri.find(settings.STATIC_URL) != -1:
        path = os.path.join(settings.STATIC_ROOT, uri.replace(settings.STATIC_URL, ''))
    else:
        path = None
    return path


pdf = pisa.pisaDocument(BytesIO(template.encode('UTF-8')), result,
                                                           encoding='utf-8',
                                                           link_callback=fetch_pdf_resources)

And of course, the url for the font must be changed to absolute, and the font itself must be available at this url.