django-persian-pdf 0.1.3

Django class based views to generate pdf files using html or latex template.

Django Persian PDF is a set of class based views allowing you to generate PDF reports using html or latex templates. Django Persian PDF under the hood uses two compiler to render template and build the actual pdf file:

• Xelatex

• Google Chrome

Using this approach avoids regular overhead for parsing html tags, improving overall response time and memory usage when generating large pdf files. Django Persian PDF follows django class based views and base on the compilers provide 4 generic view classes. The only difference is that these classes render their associated template and return a pdf file as response. Just like django views you can pass queryset or make context to be used in template. Here are the view classes available in django_persian_pdf:

• HTMLToPDFTemplateView is an extension of django TemplateView using .html template to generate pdf file.

• HTMLToPDFDetailView is an extension of django DetailView using .html template to generate pdf file.

• LatexToPDFTemplateView is an extension of django TemplateView using .tex template to generate pdf file.

• LatexToPDFDetailView is an extension of django DetailView using .tex template to generate pdf file.

Status

Dependencies

• Django >= 3.2

• Google Chrome Stable

• xelatex

Install

pip install django-persian-pdf

• Make sure you have installed either google-chrome-stable or texlive-xetex on your machine.

sudo apt install google-chrome-stable
sudo apt install texlive-xetex

Usage

1. Edit settings.py and add django_persian_pdf to your INSTALLED_APPS.

2. Inherit your views from appropriate Template or Detail view classes.

Example #1: Using HTML Template to generate a PDF response

from django_persian_pdf import views as pdf_views

class TemplatePrint(pdf_views.HTMLToPDFTemplateView):
    template_name = 'payment_reports.html'

    def get_context_data(self, **kwargs):
        context = super().get_context_data()
        context['payments'] = Payments.objects.all()
        return context

class DetailPrint(pdf_views.HTMLToPDFDetailView):
    template_name = 'payment_detail.html'
    queryset = Payments.objects.all()

Example #2: Using LaTeX Template to generate a PDF response

from django_persian_pdf import views as pdf_views

class TemplatePrint(pdf_views.LatexToPDFTemplateView):
    template_name = 'payment_reports.tex'

    def get_context_data(self, **kwargs):
        context = super().get_context_data()
        context['payments'] = Payments.objects.all()
        return context

class DetailPrint(pdf_views.LatexToPDFDetailView):
    template_name = 'payment_detail.tex'
    queryset = Payments.objects.all()

Notes on LaTeX

1. Using latex template with persian fonts requires you to have installed your persian fonts in home directory.

mkdir ~/.fonts
cp /path_to_fonts/Vazirmatn.ttf ~/.fonts/
fc-cache -f -v

2. In latex template make sure you have used xepersian package as last package.

3. Define persian fonts in latex template.

4. You can use django template tags in latex template.

Here is an example of latex template for a given view:

\documentclass[a4paper,9pt]{letter}
\usepackage[portrait,margin=0.1in]{geometry}
\usepackage{xepersian}

\settextfont{Vazirmatn}
\setlatintextfont{Vazirmatn}
\setdigitfont[Scale=1.1]{Vazirmatn}


\begin{document}

  {% for payment in payments %}
    {{ payment.trace_code }}
    \newline
    {{ payment.amount }}
    \newline
  {% endfor %}

\end{document}