34 lines
1.3 KiB
Python
34 lines
1.3 KiB
Python
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from inspect import getfullargspec
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from django.template.library import InclusionNode, parse_bits
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class InclusionAdminNode(InclusionNode):
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"""
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Template tag that allows its template to be overridden per model, per app,
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or globally.
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"""
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def __init__(self, parser, token, func, template_name, takes_context=True):
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self.template_name = template_name
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params, varargs, varkw, defaults, kwonly, kwonly_defaults, _ = getfullargspec(func)
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bits = token.split_contents()
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args, kwargs = parse_bits(
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parser, bits[1:], params, varargs, varkw, defaults, kwonly,
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kwonly_defaults, takes_context, bits[0],
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)
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super().__init__(func, takes_context, args, kwargs, filename=None)
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def render(self, context):
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opts = context['opts']
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app_label = opts.app_label.lower()
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object_name = opts.object_name.lower()
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# Load template for this render call. (Setting self.filename isn't
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# thread-safe.)
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context.render_context[self] = context.template.engine.select_template([
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'admin/%s/%s/%s' % (app_label, object_name, self.template_name),
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'admin/%s/%s' % (app_label, self.template_name),
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'admin/%s' % (self.template_name,),
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])
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return super().render(context)
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