def render(self, request, **kwargs):
"""
Render the template to a PDF file.
Supported template formats:
.tex - Uses django-tex plugin to render LaTeX template against an installed LaTeX engine
.html - Uses django-weasyprint plugin to render HTML template against Weasyprint
"""
filename = kwargs.get('filename', 'report.pdf')
context = self.get_context_data(request)
context['request'] = request
context['user'] = request.user
context['datetime'] = datetime.datetime.now()
if self.extension == '.tex':
# Render LaTeX template to PDF
if settings.LATEX_ENABLED:
# Attempt to render to LaTeX template
# If there is a rendering error, return the (partially rendered) template,
# so at least we can debug what is going on
try:
rendered = render_template_with_context(self.template_name, context)
return render_to_pdf(request, self.template_name, context, filename=filename)
except TexError:
return TexResponse(rendered, filename="error.tex")
else:
return ValidationError("Enable LaTeX support in config.yaml")
elif self.extension in ['.htm', '.html']:
# Render HTML template to PDF
wp = WeasyprintReportMixin(request, self.template_name, **kwargs)
return wp.render_to_response(context, **kwargs)
def test_render_template(self):
template_name = 'tests/test.tex'
context = {
'test': 'a simple test',
'number': Decimal('1000.10'),
'date': datetime.date(2017, 10, 25),
'names': ['Arjen', 'Robert', 'Mats'],
}
output = render_template_with_context(template_name, context)
self.assertIn('\\section{a simple test}', output)
self.assertIn('This is a number: 1000,10.', output)
self.assertIn('And this is a date: 25.10.2017.', output)
self.assertIn('\\item Arjen', output)
def test_render_template(self):
template_name = "tests/test.tex"
context = {
"test": "a simple test",
"number": Decimal("1000.10"),
"date": datetime.date(2017, 10, 25),
"names": ["Arjen", "Robert", "Mats"],
}
output = render_template_with_context(template_name, context)
self.assertIn("\\section{a simple test}", output)
self.assertIn("This is a number: 1000,10.", output)
self.assertIn("And this is a date: 25.10.2017.", output)
self.assertIn("\\item Arjen", output)
def test_render_template_from_custom_directory(self):
template_name = 'custom_directory_test.tex'
context = {'foo': 'bar'}
output = render_template_with_context(template_name, context)
self.assertIn('bar', output)
def test_render_template_from_custom_directory(self):
template_name = "custom_directory_test.tex"
context = {"foo": "bar"}
output = render_template_with_context(template_name, context)
self.assertIn("bar", output)
