def get_filter_form(self, data, view, request):
if not hasattr(view, 'get_queryset') or not hasattr(view, 'filter_backends'):
return
# Infer if this is a list view or not.
paginator = getattr(view, 'paginator', None)
if isinstance(data, list):
pass
elif (paginator is not None and data is not None):
try:
paginator.get_results(data)
except (TypeError, KeyError):
return
elif not isinstance(data, list):
return
queryset = view.get_queryset()
elements = []
for backend in view.filter_backends:
if hasattr(backend, 'to_html'):
html = backend().to_html(request, queryset, view)
if html:
elements.append(html)
if not elements:
return
template = loader.get_template(self.filter_template)
context = {'elements': elements}
return template_render(template, context)
def render(self, data, accepted_media_type=None, renderer_context=None):
renderer_context = renderer_context or {}
response = renderer_context['response']
if response and response.exception:
request = renderer_context['request']
template = self.get_exception_template(response)
context = self.resolve_context(data, request, response)
return template_render(template, context, request=request)
return data
def render(self, data, accepted_media_type=None, renderer_context=None):
"""
Render the HTML for the browsable API representation.
"""
self.accepted_media_type = accepted_media_type or ''
self.renderer_context = renderer_context or {}
template = loader.get_template(self.template)
context = self.get_context(data, accepted_media_type, renderer_context)
ret = template_render(template, context, request=renderer_context['request'])
# Munge DELETE Response code to allow us to return content
# (Do this *after* we've rendered the template so that we include
# the normal deletion response code in the output)
response = renderer_context['response']
if response.status_code == status.HTTP_204_NO_CONTENT:
response.status_code = status.HTTP_200_OK
return ret
def render(self, data, accepted_media_type=None, renderer_context=None):
"""
Render serializer data and return an HTML form, as a string.
"""
form = data.serializer
style = renderer_context.get('style', {})
if 'template_pack' not in style:
style['template_pack'] = self.template_pack
style['renderer'] = self
template_pack = style['template_pack'].strip('/')
template_name = template_pack + '/' + self.base_template
template = loader.get_template(template_name)
context = {
'form': form,
'style': style
}
return template_render(template, context)
def render(self, data, accepted_media_type=None, renderer_context=None):
self.accepted_media_type = accepted_media_type or ''
self.renderer_context = renderer_context or {}
response = renderer_context['response']
request = renderer_context['request']
view = self.renderer_context['view']
if response.status_code == status.HTTP_400_BAD_REQUEST:
# Errors still need to display the list or detail information.
# The only way we can get at that is to simulate a GET request.
self.error_form = self.get_rendered_html_form(data, view, request.method, request)
self.error_title = {'POST': 'Create', 'PUT': 'Edit'}.get(request.method, 'Errors')
with override_method(view, request, 'GET') as request:
response = view.get(request, *view.args, **view.kwargs)
data = response.data
template = loader.get_template(self.template)
context = self.get_context(data, accepted_media_type, renderer_context)
ret = template_render(template, context, request=renderer_context['request'])
# Creation and deletion should use redirects in the admin style.
if (response.status_code == status.HTTP_201_CREATED) and ('Location' in response):
response.status_code = status.HTTP_302_FOUND
response['Location'] = request.build_absolute_uri()
ret = ''
if response.status_code == status.HTTP_204_NO_CONTENT:
response.status_code = status.HTTP_302_FOUND
try:
# Attempt to get the parent breadcrumb URL.
response['Location'] = self.get_breadcrumbs(request)[-2][1]
except KeyError:
# Otherwise reload current URL to get a 'Not Found' page.
response['Location'] = request.full_path
ret = ''
return ret
def render(self, data, accepted_media_type=None, renderer_context=None):
"""
Renders data to HTML, using Django's standard template rendering.
The template name is determined by (in order of preference):
1. An explicit .template_name set on the response.
2. An explicit .template_name set on this class.
3. The return result of calling view.get_template_names().
"""
renderer_context = renderer_context or {}
view = renderer_context['view']
request = renderer_context['request']
response = renderer_context['response']
if response.exception:
template = self.get_exception_template(response)
else:
template_names = self.get_template_names(response, view)
template = self.resolve_template(template_names)
context = self.resolve_context(data, request, response)
return template_render(template, context, request=request)
def render_field(self, field, parent_style):
if isinstance(field._field, serializers.HiddenField):
return ''
style = dict(self.default_style[field])
style.update(field.style)
if 'template_pack' not in style:
style['template_pack'] = parent_style.get('template_pack', self.template_pack)
style['renderer'] = self
# Get a clone of the field with text-only value representation.
field = field.as_form_field()
if style.get('input_type') == 'datetime-local' and isinstance(field.value, six.text_type):
field.value = field.value.rstrip('Z')
if 'template' in style:
template_name = style['template']
else:
template_name = style['template_pack'].strip('/') + '/' + style['base_template']
template = loader.get_template(template_name)
context = {'field': field, 'style': style}
return template_render(template, context)
