def to_representation(self, instance: OrderPosition):
res = {}
ev = instance.subevent or instance.order.event
# This needs to have some extra performance improvements to avoid creating hundreds of queries when
# we serialize a list.
if 'vars' not in self.context:
self.context['vars'] = get_variables(self.context['request'].event)
for k, f in self.context['vars'].items():
res[k] = f['evaluate'](instance, instance.order, ev)
if not hasattr(ev, '_cached_meta_data'):
ev._cached_meta_data = ev.meta_data
for k, v in ev._cached_meta_data.items():
res['meta:' + k] = v
return res
def get_variables(self):
return get_variables(self.request.event)
def __init__(self, event, override_layout=None, override_background=None):
self.override_layout = override_layout
self.override_background = override_background
self.variables = get_variables(event)
super().__init__(event)
