def display_drilldown_as_ul(category, using='categories.Category'):
"""
Render the category with ancestors and children using the
``categories/ul_tree.html`` template.
Example::
{% display_drilldown_as_ul "/Grandparent/Parent" %}
or ::
{% display_drilldown_as_ul category_obj %}
Returns::
<ul>
<li><a href="/categories/">Top</a>
<ul>
<li><a href="/categories/grandparent/">Grandparent</a>
<ul>
<li><a href="/categories/grandparent/parent/">Parent</a>
<ul>
<li><a href="/categories/grandparent/parent/child1">Child1</a></li>
<li><a href="/categories/grandparent/parent/child2">Child2</a></li>
<li><a href="/categories/grandparent/parent/child3">Child3</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
"""
cat = get_category(category, using)
return {'category': cat, 'path': drilldown_tree_for_node(cat) or []}
def render(self, context):
try:
if self.category is not None:
context[self.varname] = drilldown_tree_for_node(self.category)
else:
context[self.varname] = None
except Category.DoesNotExist:
context[self.varname] = None
return ''
def render(self, context):
try:
if self.category is not None:
context[self.varname] = drilldown_tree_for_node(self.category)
else:
context[self.varname] = None
except Category.DoesNotExist:
context[self.varname] = None
return ''
def render(self, context):
try:
category = self.category.resolve(context)
except template.VariableDoesNotExist:
category = self.category.var
try:
if category is not None:
context[self.varname] = drilldown_tree_for_node(category)
else:
context[self.varname] = []
except Category.DoesNotExist:
context[self.varname] = []
return ''
def render(self, context):
try:
category = self.category.resolve(context)
except template.VariableDoesNotExist:
category = self.category.var
try:
if category is not None:
context[self.varname] = drilldown_tree_for_node(category)
else:
context[self.varname] = []
except Category.DoesNotExist:
context[self.varname] = []
return ''
def render(self, context):
"""Render this node."""
category = resolve(self.category, context)
if isinstance(category, CategoryBase):
cat = category
else:
cat = get_category(category, self.model)
try:
context[self.varname] = drilldown_tree_for_node(
cat) if cat is not None else []
except Exception:
context[self.varname] = []
return ""
def render(self, context):
category = resolve(self.category, context)
if isinstance(category, CategoryBase):
cat = category
else:
cat = get_category(category, self.model)
try:
if cat is not None:
context[self.varname] = drilldown_tree_for_node(cat)
else:
context[self.varname] = []
except:
context[self.varname] = []
return ''
def render(self, context):
# Let any VariableDoesNotExist raised bubble up
args = [self.node.resolve(context)]
if self.foreign_key is not None:
app_label, model_name, fk_attr = self.foreign_key.split('.')
cls = get_model(app_label, model_name)
if cls is None:
raise template.TemplateSyntaxError(_('drilldown_tree_for_node tag was given an invalid model: %s') % '.'.join([app_label, model_name]))
try:
cls._meta.get_field(fk_attr)
except FieldDoesNotExist:
raise template.TemplateSyntaxError(_('drilldown_tree_for_node tag was given an invalid model field: %s') % fk_attr)
args.extend([cls, fk_attr, self.count_attr, self.cumulative])
context[self.context_var] = drilldown_tree_for_node(*args)
return ''
def render(self, context):
# Let any VariableDoesNotExist raised bubble up
args = [self.node.resolve(context)]
if self.foreign_key is not None:
app_label, model_name, fk_attr = self.foreign_key.split('.')
cls = get_model(app_label, model_name)
if cls is None:
raise template.TemplateSyntaxError(_('drilldown_tree_for_node tag was given an invalid model: %s') % '.'.join([app_label, model_name]))
try:
cls._meta.get_field(fk_attr)
except FieldDoesNotExist:
raise template.TemplateSyntaxError(_('drilldown_tree_for_node tag was given an invalid model field: %s') % fk_attr)
args.extend([cls, fk_attr, self.count_attr, self.cumulative])
context[self.context_var] = drilldown_tree_for_node(*args)
return ''
def display_drilldown_as_ul(category, using="categories.Category"):
"""
Render the category with ancestors and children using the ``categories/ul_tree.html`` template.
Example:
The template code of::
{% display_drilldown_as_ul "/Grandparent/Parent" %}
or::
{% display_drilldown_as_ul category_obj %}
might render as::
<ul>
<li><a href="/categories/">Top</a>
<ul>
<li><a href="/categories/grandparent/">Grandparent</a>
<ul>
<li><a href="/categories/grandparent/parent/">Parent</a>
<ul>
<li><a href="/categories/grandparent/parent/child1">Child1</a></li>
<li><a href="/categories/grandparent/parent/child2">Child2</a></li>
<li><a href="/categories/grandparent/parent/child3">Child3</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
Args:
category: A variable reference to or the name of the category to display
using: A variable reference to or the name of the category model to search for.
Returns:
The inclusion template
"""
cat = get_category(category, using)
if cat is None:
return {"category": cat, "path": []}
else:
return {"category": cat, "path": drilldown_tree_for_node(cat)}
def retrieve(self, request, pk=None):
try:
uuid.UUID(pk)
except ValueError:
raise Http404
dept = get_object_or_404(Department, uuid=pk)
serializer = self.serializer_class(dept, context=self.get_serializer_context())
include_hierarchy = request.query_params.get('include_hierarchy')
data = serializer.data
if (include_hierarchy is not None
and include_hierarchy.lower() not in ['no', 'false', '0']):
hierarchy = drilldown_tree_for_node(dept)
data['hierarchy'] = self.serializer_class(
hierarchy, many=True, context=self.get_serializer_context()).data
return Response(data)
def retrieve(self, request, pk=None):
try:
uuid.UUID(pk)
except ValueError:
raise Http404
dept = get_object_or_404(Department, uuid=pk)
serializer = self.serializer_class(
dept, context=self.get_serializer_context())
include_hierarchy = request.query_params.get('include_hierarchy')
data = serializer.data
if (include_hierarchy is not None
and include_hierarchy.lower() not in ['no', 'false', '0']):
hierarchy = drilldown_tree_for_node(dept)
data['hierarchy'] = self.serializer_class(
hierarchy, many=True,
context=self.get_serializer_context()).data
return Response(data)
