def render_html_str(s, context=None, request=None):
""" Use DjangoTemplates() to render a template string.
Returns the rendered content str on success.
"""
template = DjangoTemplates(settings.DJANGO_TEMPLATES_OPTS).from_string(s)
try:
content = template.render(context=context or {}, request=request)
except Exception as ex:
# For trimming the template string, for logging.
max_content_len = 45
log.error(
'\n'.join((
'Cannot render template str: {s}{ellipses}',
' Context: {context}',
' Request: {request}',
' Error: ({errtype}) {errmsg}',
)).format(
s=s[:max_content_len],
ellipses='...' if len(s) > max_content_len else '',
context=context,
request=request,
errtype=type(ex).__name__,
errmsg=ex,
)
)
return ''
return content
def retrieve_template(template_id):
request = get_current_request()
if is_github_remote_enabled(request):
template_slug = template_id
variables = json.loads(
get_github_repo(request).get_file_contents('/' + template_slug + '.defaults').decoded_content.decode())
else:
template_db = Template.objects.get(pk=int(template_id))
template_slug = template_db.slug
variables = {var["name"]: var["initial"] for var in parse_vars(template_db.variables)}
engine = DjangoTemplates(
{
'NAME': 'mail',
'APP_DIRS': False,
'DIRS': [],
'OPTIONS': {
'loaders': [
'events.loaders.MyLoader',
],
},
})
template = engine.get_template(template_slug)
return template, variables
def test_context_has_priority_over_template_context_processors(self):
# See ticket #23789.
engine = DjangoTemplates(
{"DIRS": [], "APP_DIRS": False, "NAME": "django", "OPTIONS": {"context_processors": [test_processor_name]}}
)
template = engine.from_string("{{ processors }}")
request = RequestFactory().get("/")
# Check that context processors run
content = template.render({}, request)
self.assertEqual(content, "yes")
# Check that context overrides context processors
content = template.render({"processors": "no"}, request)
self.assertEqual(content, "no")
def test_render_requires_dict(self):
"""django.Template.render() requires a dict."""
engine = DjangoTemplates({
'DIRS': [],
'APP_DIRS': False,
'NAME': 'django',
'OPTIONS': {},
})
template = engine.from_string('')
context = Context()
request_context = RequestContext(RequestFactory().get('/'), {})
msg = 'context must be a dict rather than Context.'
with self.assertRaisesMessage(TypeError, msg):
template.render(context)
msg = 'context must be a dict rather than RequestContext.'
with self.assertRaisesMessage(TypeError, msg):
template.render(request_context)
def test_context_has_priority_over_template_context_processors(self):
# See ticket #23789.
engine = DjangoTemplates({
'DIRS': [],
'APP_DIRS': False,
'NAME': 'django',
'OPTIONS': {
'context_processors': [test_processor_name],
},
})
template = engine.from_string('{{ processors }}')
request = RequestFactory().get('/')
# Check that context processors run
content = template.render({}, request)
self.assertEqual(content, 'yes')
# Check that context overrides context processors
content = template.render({'processors': 'no'}, request)
self.assertEqual(content, 'no')
