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refactor: Fix #1277 + Cache components' JS/CSS scripts at class creation (#1283)

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* refactor: Cache components' JS and CSS scripts at class creation time

* refactor: add test for no template_rendered signal for component with no template
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Juro Oravec 2025-07-03 12:27:21 +02:00 • committed by GitHub
parent 007009a480
commit c692b7a310
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13 changed files with 138 additions and 58 deletions
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14
src/django_components/component.py
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@ -3486,11 +3486,12 @@ class Component(metaclass=ComponentMeta):
)
)
# Process Component's JS and CSS
cache_component_js(comp_cls)
js_input_hash = cache_component_js_vars(comp_cls, js_data) if js_data else None
# Cache component's JS and CSS scripts, in case they have been evicted from the cache.
cache_component_js(comp_cls, force=False)
cache_component_css(comp_cls, force=False)
cache_component_css(comp_cls)
# Create JS/CSS scripts that will load the JS/CSS variables into the page.
js_input_hash = cache_component_js_vars(comp_cls, js_data) if js_data else None
css_input_hash = cache_component_css_vars(comp_cls, css_data) if css_data else None
#############################################################################
@ -3670,7 +3671,7 @@ class Component(metaclass=ComponentMeta):
# ```
def _gen_component_renderer(
self,
template: Template,
template: Optional[Template],
context: Context,
component_path: List[str],
css_input_hash: Optional[str],
@ -3695,7 +3696,8 @@ class Component(metaclass=ComponentMeta):
component.on_render_before(context, template)
# Emit signal that the template is about to be rendered
template_rendered.send(sender=template, template=template, context=context)
if template is not None:
template_rendered.send(sender=template, template=template, context=context)
# Get the component's HTML
# To access the *final* output (with all its children rendered) from within `Component.on_render()`,