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August 7, 2017 18:50
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Render LaTeX code generated with Django templates to a PDF response.
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| \documentclass[a4paper]{article} | |
| % Cyrillic support | |
| \usepackage[T2A]{fontenc} | |
| \usepackage[utf8]{inputenc} | |
| \usepackage[english,russian]{babel} | |
| \DeclareSymbolFont{T2Aletters}{T2A}{cmr}{m}{it} | |
| % PDF search & cut'n'paste | |
| \usepackage{cmap} | |
| % Page options | |
| \usepackage{geometry} | |
| \geometry{left=1cm} | |
| \geometry{right=1cm} | |
| \geometry{top=1cm} | |
| \geometry{bottom=1.25cm} | |
| % Misc options | |
| \setcounter{secnumdepth}{5} | |
| \usepackage[parfill]{parskip} | |
| \nonstopmode | |
| {% block extraheader %}{% endblock %} | |
| \title{% templatetag openbrace %}{% block title %}{% endblock %}} | |
| \author{% templatetag openbrace %}{% block author %}{% endblock %}} | |
| \date{% templatetag openbrace %}{% block date %}{% endblock %}} | |
| \begin{document} | |
| {% block document %}{% endblock %} | |
| \end{document} |
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| from django.template.loader import get_template | |
| from django.template import TemplateDoesNotExist, Context | |
| from django.http import HttpResponse, Http404, HttpResponseNotModified | |
| from django.core.cache import cache | |
| from django.conf import settings | |
| from tempfile import mkdtemp | |
| import subprocess | |
| import os | |
| import shutil | |
| from hashlib import md5 | |
| TEMP_PREFIX = getattr(settings, 'TEX_TEMP_PREFIX', 'render_tex-') | |
| CACHE_PREFIX = getattr(settings, 'TEX_CACHE_PREFIX', 'render-tex') | |
| CACHE_TIMEOUT = getattr(settings, 'TEX_CACHE_TIMEOUT', 86400) # 1 day | |
| def render_tex(request, template, ctx={}): | |
| doc = template.rsplit('/', 1)[-1].rsplit('.', 1)[0] | |
| try: | |
| body = get_template(template).render(Context(ctx)).encode("utf-8") | |
| except TemplateDoesNotExist: | |
| raise Http404() | |
| etag = md5(body).hexdigest() | |
| if request.META.get('HTTP_IF_NONE_MATCH', '') == etag: | |
| return HttpResponseNotModified() | |
| cache_key = "%s:%s:%s" % (CACHE_PREFIX, template, etag) | |
| pdf = cache.get(cache_key) | |
| if pdf is None: | |
| if '\\nonstopmode' not in body: | |
| raise ValueError("\\nonstopmode not present in document, cowardly refusing to process.") | |
| tmp = mkdtemp(prefix=TEMP_PREFIX) | |
| try: | |
| with open("%s/%s.tex" % (tmp, doc), "w") as f: | |
| f.write(body) | |
| del body | |
| error = subprocess.Popen( | |
| ["pdflatex", "%s.tex" % doc], | |
| cwd=tmp, | |
| stdin=open(os.devnull, "r"), | |
| stderr=open(os.devnull, "wb"), | |
| stdout=open(os.devnull, "wb") | |
| ).wait() | |
| if error: | |
| if request.user.is_superuser: | |
| log = open("%s/%s.log" % (tmp, doc)).read() | |
| return HttpResponse(log, mimetype="text/plain") | |
| else: | |
| raise RuntimeError("pdflatex error (code %s) in %s/%s" % (error, tmp, doc)) | |
| pdf = open("%s/%s.pdf" % (tmp, doc)) | |
| finally: | |
| shutil.rmtree(tmp) | |
| if pdf: | |
| cache.set(cache_key, pdf, CACHE_TIMEOUT) | |
| res = HttpResponse(pdf, mimetype="application/pdf") | |
| res['ETag'] = etag | |
| return res |
heu wlwzrd you should put your images in a static folder and define this folder in your settings.py
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Hi, I'm trying to put some pics on the latex doc, but I don't know where I can put the images.
Actually I have something like this:
myapp
----- models.py
----- views.py
----- urls.py
-----TEMPLATES/
----------base.tex
---------- image1.png
So I'm using {graphicx} like this \includegraphics{image1} but this doesn't generate the PDF
please I would like to know how to fix it.