def render(self, context):
table = self.table.resolve(context)
if isinstance(table, tables.TableBase):
pass
elif hasattr(table, 'model'):
queryset = table
# We've been given a queryset, create a table using its model and
# render that.
class OnTheFlyTable(tables.Table):
class Meta:
model = queryset.model
table = OnTheFlyTable(queryset)
request = context.get('request')
if request:
RequestConfig(request).configure(table)
else:
klass = type(table).__name__
raise ValueError('Expected table or queryset, not {}'.format(klass))
if self.template:
template = self.template.resolve(context)
else:
template = table.template
if isinstance(template, six.string_types):
template = get_template(template)
else:
# assume some iterable was given
template = select_template(template)
# Contexts are basically a `MergeDict`, when you `update()`, it
# internally just adds a dict to the list to attempt lookups from. This
# is why we're able to `pop()` later.
context.update({'table': table})
try:
# HACK:
# TemplateColumn benefits from being able to use the context
# that the table is rendered in. The current way this is
# achieved is to temporarily attach the context to the table,
# which TemplateColumn then looks for and uses.
table.context = context
return template.render(context.flatten())
finally:
del table.context
context.pop()
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