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fix: avoid nested django contexts when rendering (#415)

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* fix: avoid nested django contexts when rendering

* refactor: make input for slot context processing more specific

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Juro Oravec 2024-03-30 09:17:55 +01:00 • committed by GitHub
parent 20847b978b
commit 2c8fc6c3a2
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1 changed files with 11 additions and 8 deletions
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19
src/django_components/component.py
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@ -262,14 +262,18 @@ class Component(View, metaclass=SimplifiedInterfaceMediaDefiningClass):
slots_data: Optional[Dict[SlotName, str]] = None,
escape_slots_content: bool = True,
) -> str:
context = Context(context_data)
# NOTE: This if/else is important to avoid nested Contexts,
# See https://github.com/EmilStenstrom/django-components/issues/414
context = context_data if isinstance(context_data, Context) else Context(context_data)
template = self.get_template(context)
if slots_data:
self._fill_slots(slots_data, escape_slots_content)
updated_filled_slots_context: FilledSlotsContext = self._process_template_and_update_filled_slot_context(
context, template
prev_filled_slots_context: Optional[FilledSlotsContext] = context.get(FILLED_SLOTS_CONTENT_CONTEXT_KEY)
updated_filled_slots_context = self._process_template_and_update_filled_slot_context(
template,
prev_filled_slots_context,
)
with context.update({FILLED_SLOTS_CONTENT_CONTEXT_KEY: updated_filled_slots_context}):
return template.render(context)
@ -305,8 +309,8 @@ class Component(View, metaclass=SimplifiedInterfaceMediaDefiningClass):
def _process_template_and_update_filled_slot_context(
self,
context: Context,
template: Template,
slots_context: Optional[FilledSlotsContext],
) -> FilledSlotsContext:
if isinstance(self.fill_content, NodeList):
default_fill_content = (self.fill_content, None)
@ -401,8 +405,7 @@ class Component(View, metaclass=SimplifiedInterfaceMediaDefiningClass):
for slot_name, content_data in slot_name2fill_content.items()
if content_data # Slots whose content is None (i.e. unfilled) are dropped.
}
try:
prev_context: FilledSlotsContext = context[FILLED_SLOTS_CONTENT_CONTEXT_KEY]
return prev_context.new_child(filled_slots_map)
except KeyError:
if slots_context is not None:
return slots_context.new_child(filled_slots_map)
else:
return ChainMap(filled_slots_map)