def handler500(request, template_name='500.html'):
t = get_template(template_name)
tt, value, tb = sys.exc_info()
ctx = Context({'exception_value': value,
'value': tt,
'tb': traceback.format_exception(tt, value, tb)})
return HttpResponseServerError(t.render(ctx))
python类Context()的实例源码
def submit_row(context):
"""
Displays the row of buttons for delete and save.
"""
change = context['change']
is_popup = context['is_popup']
save_as = context['save_as']
show_save = context.get('show_save', True)
show_save_and_continue = context.get('show_save_and_continue', True)
ctx = Context(context)
ctx.update({
'show_delete_link': (
not is_popup and context['has_delete_permission'] and
change and context.get('show_delete', True)
),
'show_save_as_new': not is_popup and change and save_as,
'show_save_and_add_another': (
context['has_add_permission'] and not is_popup and
(not save_as or context['add'])
),
'show_save_and_continue': not is_popup and context['has_change_permission'] and show_save_and_continue,
'show_save': show_save,
})
return ctx
def submit_row(context):
"""
Displays the row of buttons for delete and save.
"""
change = context['change']
is_popup = context['is_popup']
save_as = context['save_as']
show_save = context.get('show_save', True)
show_save_and_continue = context.get('show_save_and_continue', True)
ctx = Context(context)
ctx.update({
'show_delete_link': (
not is_popup and context['has_delete_permission'] and
change and context.get('show_delete', True)
),
'show_save_as_new': not is_popup and change and save_as,
'show_save_and_add_another': (
context['has_add_permission'] and not is_popup and
(not save_as or context['add'])
),
'show_save_and_continue': not is_popup and context['has_change_permission'] and show_save_and_continue,
'show_save': show_save,
})
return ctx
def submit_row(context):
"""
Displays the row of buttons for delete and save.
"""
change = context['change']
is_popup = context['is_popup']
save_as = context['save_as']
show_save = context.get('show_save', True)
show_save_and_continue = context.get('show_save_and_continue', True)
ctx = Context(context)
ctx.update({
'show_delete_link': (
not is_popup and context['has_delete_permission'] and
change and context.get('show_delete', True)
),
'show_save_as_new': not is_popup and change and save_as,
'show_save_and_add_another': (
context['has_add_permission'] and not is_popup and
(not save_as or context['add'])
),
'show_save_and_continue': not is_popup and context['has_change_permission'] and show_save_and_continue,
'show_save': show_save,
})
return ctx
def _render(self, context):
"""
Renders the plain and html versions of a template.
Return both in a tuple, where the first element is the plain text
version and the second element is the html version
:return: (str, str,)
"""
if not context:
context = Context({})
plain = self.template_plain.render(context)
html = self.template_html.render(context)
css = get_template(self.template_style).render(Context({}))
p = Pynliner()
html = p.from_string(html).with_cssString(css).run()
return plain, html
def submit_row(context):
"""
Displays the row of buttons for delete and save.
"""
change = context['change']
is_popup = context['is_popup']
save_as = context['save_as']
show_save = context.get('show_save', True)
show_save_and_continue = context.get('show_save_and_continue', True)
ctx = Context(context)
ctx.update({
'show_delete_link': (
not is_popup and context['has_delete_permission'] and
change and context.get('show_delete', True)
),
'show_save_as_new': not is_popup and change and save_as,
'show_save_and_add_another': (
context['has_add_permission'] and not is_popup and
(not save_as or context['add'])
),
'show_save_and_continue': not is_popup and context['has_change_permission'] and show_save_and_continue,
'show_save': show_save,
})
return ctx
def submit_row(context):
"""
Displays the row of buttons for delete and save.
"""
change = context['change']
is_popup = context['is_popup']
save_as = context['save_as']
show_save = context.get('show_save', True)
show_save_and_continue = context.get('show_save_and_continue', True)
ctx = Context(context)
ctx.update({
'show_delete_link': (
not is_popup and context['has_delete_permission'] and
change and context.get('show_delete', True)
),
'show_save_as_new': not is_popup and change and save_as,
'show_save_and_add_another': (
context['has_add_permission'] and not is_popup and
(not save_as or context['add'])
),
'show_save_and_continue': not is_popup and context['has_change_permission'] and show_save_and_continue,
'show_save': show_save,
})
return ctx
def submit_row(context):
"""
Displays the row of buttons for delete and save.
"""
change = context['change']
is_popup = context['is_popup']
save_as = context['save_as']
show_save = context.get('show_save', True)
show_save_and_continue = context.get('show_save_and_continue', True)
ctx = Context(context)
ctx.update({
'show_delete_link': (
not is_popup and context['has_delete_permission'] and
change and context.get('show_delete', True)
),
'show_save_as_new': not is_popup and change and save_as,
'show_save_and_add_another': (
context['has_add_permission'] and not is_popup and
(not save_as or context['add'])
),
'show_save_and_continue': not is_popup and context['has_change_permission'] and show_save_and_continue,
'show_save': show_save,
})
return ctx
def submit_row(context):
"""
Displays the row of buttons for delete and save.
"""
change = context['change']
is_popup = context['is_popup']
save_as = context['save_as']
show_save = context.get('show_save', True)
show_save_and_continue = context.get('show_save_and_continue', True)
ctx = Context(context)
ctx.update({
'show_delete_link': (
not is_popup and context['has_delete_permission'] and
change and context.get('show_delete', True)
),
'show_save_as_new': not is_popup and change and save_as,
'show_save_and_add_another': (
context['has_add_permission'] and not is_popup and
(not save_as or context['add'])
),
'show_save_and_continue': not is_popup and context['has_change_permission'] and show_save_and_continue,
'show_save': show_save,
})
return ctx
def submit_row(context):
"""
Displays the row of buttons for delete and save.
"""
change = context['change']
is_popup = context['is_popup']
save_as = context['save_as']
show_save = context.get('show_save', True)
show_save_and_continue = context.get('show_save_and_continue', True)
ctx = Context(context)
ctx.update({
'show_delete_link': (
not is_popup and context['has_delete_permission'] and
change and context.get('show_delete', True)
),
'show_save_as_new': not is_popup and change and save_as,
'show_save_and_add_another': (
context['has_add_permission'] and not is_popup and
(not save_as or context['add'])
),
'show_save_and_continue': not is_popup and context['has_change_permission'] and show_save_and_continue,
'show_save': show_save,
})
return ctx
def submit_row(context):
"""
Displays the row of buttons for delete and save.
"""
change = context['change']
is_popup = context['is_popup']
save_as = context['save_as']
show_save = context.get('show_save', True)
show_save_and_continue = context.get('show_save_and_continue', True)
ctx = Context(context)
ctx.update({
'show_delete_link': (
not is_popup and context['has_delete_permission'] and
change and context.get('show_delete', True)
),
'show_save_as_new': not is_popup and change and save_as,
'show_save_and_add_another': (
context['has_add_permission'] and not is_popup and
(not save_as or context['add'])
),
'show_save_and_continue': not is_popup and context['has_change_permission'] and show_save_and_continue,
'show_save': show_save,
})
return ctx
def submit_row(context):
"""
Displays the row of buttons for delete and save.
"""
change = context['change']
is_popup = context['is_popup']
save_as = context['save_as']
show_save = context.get('show_save', True)
show_save_and_continue = context.get('show_save_and_continue', True)
ctx = Context(context)
ctx.update({
'show_delete_link': (
not is_popup and context['has_delete_permission'] and
change and context.get('show_delete', True)
),
'show_save_as_new': not is_popup and change and save_as,
'show_save_and_add_another': (
context['has_add_permission'] and not is_popup and
(not save_as or context['add'])
),
'show_save_and_continue': not is_popup and context['has_change_permission'] and show_save_and_continue,
'show_save': show_save,
})
return ctx
def submit_row(context):
"""
Displays the row of buttons for delete and save.
"""
change = context['change']
is_popup = context['is_popup']
save_as = context['save_as']
show_save = context.get('show_save', True)
show_save_and_continue = context.get('show_save_and_continue', True)
ctx = Context(context)
ctx.update({
'show_delete_link': (
not is_popup and context['has_delete_permission'] and
change and context.get('show_delete', True)
),
'show_save_as_new': not is_popup and change and save_as,
'show_save_and_add_another': (
context['has_add_permission'] and not is_popup and
(not save_as or context['add'])
),
'show_save_and_continue': not is_popup and context['has_change_permission'] and show_save_and_continue,
'show_save': show_save,
})
return ctx
def submit_row(context):
"""
Displays the row of buttons for delete and save.
"""
change = context['change']
is_popup = context['is_popup']
save_as = context['save_as']
show_save = context.get('show_save', True)
show_save_and_continue = context.get('show_save_and_continue', True)
ctx = Context(context)
ctx.update({
'show_delete_link': (
not is_popup and context['has_delete_permission'] and
change and context.get('show_delete', True)
),
'show_save_as_new': not is_popup and change and save_as,
'show_save_and_add_another': (
context['has_add_permission'] and not is_popup and
(not save_as or context['add'])
),
'show_save_and_continue': not is_popup and context['has_change_permission'] and show_save_and_continue,
'show_save': show_save,
})
return ctx
def handler404(request, template_name='404.html'):
t = get_template(template_name)
ctx = Context({})
return HttpResponseNotFound(t.render(ctx))
def render(self, context=None, request=None):
# A deprecation path is required here to cover the following usage:
# >>> from django.template import Context
# >>> from django.template.loader import get_template
# >>> template = get_template('hello.html')
# >>> template.render(Context({'name': 'world'}))
# In Django 1.7 get_template() returned a django.template.Template.
# In Django 1.8 it returns a django.template.backends.django.Template.
# In Django 1.10 the isinstance checks should be removed. If passing a
# Context or a RequestContext works by accident, it won't be an issue
# per se, but it won't be officially supported either.
if isinstance(context, RequestContext):
if request is not None and request is not context.request:
raise ValueError(
"render() was called with a RequestContext and a request "
"argument which refer to different requests. Make sure "
"that the context argument is a dict or at least that "
"the two arguments refer to the same request.")
warnings.warn(
"render() must be called with a dict, not a RequestContext.",
RemovedInDjango110Warning, stacklevel=2)
elif isinstance(context, Context):
warnings.warn(
"render() must be called with a dict, not a Context.",
RemovedInDjango110Warning, stacklevel=2)
else:
context = make_context(context, request)
try:
return self.template.render(context)
except TemplateDoesNotExist as exc:
reraise(exc, self.backend)
def render_form(self, step, form):
template = get_template(self.templates.get(step, 'testapp/default_form.html'))
context = Context()
context['form'] = form
return template.render(context)
def render_to_temporary_file(template, context, request=None, mode='w+b',
bufsize=-1, suffix='.html', prefix='tmp',
dir=None, delete=True):
if django.VERSION < (1, 8):
# If using a version of Django prior to 1.8, ensure ``context`` is an
# instance of ``Context``
if not isinstance(context, Context):
if request:
context = RequestContext(request, context)
else:
context = Context(context)
content = template.render(context)
else:
content = template.render(context, request)
content = smart_text(content)
content = make_absolute_paths(content)
try:
# Python3 has 'buffering' arg instead of 'bufsize'
tempfile = NamedTemporaryFile(mode=mode, buffering=bufsize,
suffix=suffix, prefix=prefix,
dir=dir, delete=delete)
except TypeError:
tempfile = NamedTemporaryFile(mode=mode, bufsize=bufsize,
suffix=suffix, prefix=prefix,
dir=dir, delete=delete)
try:
tempfile.write(content.encode('utf-8'))
tempfile.flush()
return tempfile
except:
# Clean-up tempfile if an Exception is raised.
tempfile.close()
raise
def assertFooter(self, context, output,
template='{% admin_footer %}'):
"""
:param template:
:param context:
:param output:
"""
template = base.Template('{% load footer %}' + template)
ctx = Context(context)
self.assertEqual(template.render(ctx), output)
def assertNavigation(self, context, output,
template='{% admin_navigation %}'):
"""
Ensure rendered template is correct.
:param template:
:param context:
:param output:
"""
template = base.Template('{% load navigation %}' + template)
ctx = Context(context)
self.assertEqual(template.render(ctx), output)
def _build_context(self, **kwargs):
"""
Must return an instance of django.template.context.Context
with the template variables set for each implementation
:return: None
"""
# adding full url to logo
kwargs.update({
'logo_url': "{}vaultier/images/logo-email.png".format(
urljoin(settings.SITE_URL, settings.STATIC_URL))
})
return Context(kwargs)
def __str__(self):
tpl = get_template(self.template)
return mark_safe(tpl.render(Context(self.get_context())))
def render_blocks(context, block_context, parent=None, template=None, **kwargs):
if isinstance(block_context, basestring):
try:
app_label, model_name = block_context.split('.')
block_context = apps.get_model(app_label, model_name)
except ValueError:
error = ('First argument to render_blocks must be the block context '
' model, or string in the format "app_label.ModelName"')
raise TemplateSyntaxError(error)
if not issubclass(block_context, BlockContext):
error = ('block_context must be a clubhouse.core.models.BlockContext '
'instance')
raise TemplateSyntaxError(error)
if not parent:
try:
parent = context['page'].get_content_model()
except KeyError:
error = ('Could not find parent for block context, please provide')
raise TemplateSyntaxError(error)
if not template:
template = block_context.get_template()
parent_ct = ContentType.objects.get_for_model(parent)
parent_id = parent.pk
kwargs.update({
'blocks': block_context.objects.filter(parent_type=parent_ct,
parent_id=parent_id).order_by('order'),
'parent': parent,
'context_model': block_context
})
return select_template([template, 'block_context.html'])\
.render(Context(kwargs))
def get_context(self, path=None, page=None):
if not path:
path = self.get_pages_root()
context = {}
request = self.get_request(path, page=page)
context['request'] = request
return Context(context)
def render(self, context=None, request=None):
# A deprecation path is required here to cover the following usage:
# >>> from django.template import Context
# >>> from django.template.loader import get_template
# >>> template = get_template('hello.html')
# >>> template.render(Context({'name': 'world'}))
# In Django 1.7 get_template() returned a django.template.Template.
# In Django 1.8 it returns a django.template.backends.django.Template.
# In Django 1.10 the isinstance checks should be removed. If passing a
# Context or a RequestContext works by accident, it won't be an issue
# per se, but it won't be officially supported either.
if isinstance(context, RequestContext):
if request is not None and request is not context.request:
raise ValueError(
"render() was called with a RequestContext and a request "
"argument which refer to different requests. Make sure "
"that the context argument is a dict or at least that "
"the two arguments refer to the same request.")
warnings.warn(
"render() must be called with a dict, not a RequestContext.",
RemovedInDjango110Warning, stacklevel=2)
elif isinstance(context, Context):
warnings.warn(
"render() must be called with a dict, not a Context.",
RemovedInDjango110Warning, stacklevel=2)
else:
context = make_context(context, request)
try:
return self.template.render(context)
except TemplateDoesNotExist as exc:
reraise(exc, self.backend)
def admin_list_filter(cl, spec):
tpl = get_template(spec.template)
return tpl.render(Context({
'title': spec.title,
'choices' : list(spec.choices(cl)),
'spec': spec,
}))
def __str__(self):
tpl = get_template(self.template)
return mark_safe(tpl.render(Context(self.get_context())))
def render(self, context=None, request=None):
# A deprecation path is required here to cover the following usage:
# >>> from django.template import Context
# >>> from django.template.loader import get_template
# >>> template = get_template('hello.html')
# >>> template.render(Context({'name': 'world'}))
# In Django 1.7 get_template() returned a django.template.Template.
# In Django 1.8 it returns a django.template.backends.django.Template.
# In Django 1.10 the isinstance checks should be removed. If passing a
# Context or a RequestContext works by accident, it won't be an issue
# per se, but it won't be officially supported either.
if isinstance(context, RequestContext):
if request is not None and request is not context.request:
raise ValueError(
"render() was called with a RequestContext and a request "
"argument which refer to different requests. Make sure "
"that the context argument is a dict or at least that "
"the two arguments refer to the same request.")
warnings.warn(
"render() must be called with a dict, not a RequestContext.",
RemovedInDjango110Warning, stacklevel=2)
elif isinstance(context, Context):
warnings.warn(
"render() must be called with a dict, not a Context.",
RemovedInDjango110Warning, stacklevel=2)
else:
context = make_context(context, request)
try:
return self.template.render(context)
except TemplateDoesNotExist as exc:
reraise(exc, self.backend)
def render(self, context=None, request=None):
# A deprecation path is required here to cover the following usage:
# >>> from django.template import Context
# >>> from django.template.loader import get_template
# >>> template = get_template('hello.html')
# >>> template.render(Context({'name': 'world'}))
# In Django 1.7 get_template() returned a django.template.Template.
# In Django 1.8 it returns a django.template.backends.django.Template.
# In Django 2.0 the isinstance checks should be removed. If passing a
# Context or a RequestContext works by accident, it won't be an issue
# per se, but it won't be officially supported either.
if isinstance(context, RequestContext):
if request is not None and request is not context.request:
raise ValueError(
"render() was called with a RequestContext and a request "
"argument which refer to different requests. Make sure "
"that the context argument is a dict or at least that "
"the two arguments refer to the same request.")
warnings.warn(
"render() must be called with a dict, not a RequestContext.",
RemovedInDjango20Warning, stacklevel=2)
elif isinstance(context, Context):
warnings.warn(
"render() must be called with a dict, not a Context.",
RemovedInDjango20Warning, stacklevel=2)
else:
context = make_context(context, request)
return self.template.render(context)
def add_service(request, username, id_string):
data = {}
form = RestServiceForm()
xform = get_object_or_404(
XForm, user__username__iexact=username, id_string__exact=id_string)
if request.method == 'POST':
form = RestServiceForm(request.POST)
restservice = None
if form.is_valid():
service_name = form.cleaned_data['service_name']
service_url = form.cleaned_data['service_url']
try:
rs = RestService(service_url=service_url,
name=service_name, xform=xform)
rs.save()
except IntegrityError:
message = _(u"Service already defined.")
status = 'fail'
else:
status = 'success'
message = (_(u"Successfully added service %(name)s.")
% {'name': service_name})
service_tpl = render_to_string("service.html", {
"sv": rs, "username": xform.user.username,
"id_string": xform.id_string})
restservice = service_tpl
else:
status = 'fail'
message = _(u"Please fill in all required fields")
if form.errors:
for field in form:
message += Template(u"{{ field.errors }}")\
.render(Context({'field': field}))
if request.is_ajax():
response = {'status': status, 'message': message}
if restservice:
response["restservice"] = u"%s" % restservice
return HttpResponse(json.dumps(response))
data['status'] = status
data['message'] = message
data['list_services'] = RestService.objects.filter(xform=xform)
data['form'] = form
data['username'] = username
data['id_string'] = id_string
return render(request, "add-service.html", data)
