django-orchestra-test/orchestra/apps/orders/handlers.py

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from django.contrib.contenttypes.models import ContentType
from django.utils.translation import ugettext_lazy as _
from orchestra.utils import plugins
class ServiceHandler(plugins.Plugin):
model = None
__metaclass__ = plugins.PluginMount
def __init__(self, service):
self.service = service
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def __getattr__(self, attr):
return getattr(self.service, attr)
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@classmethod
def get_plugin_choices(cls):
choices = super(ServiceHandler, cls).get_plugin_choices()
return [('', _("Default"))] + choices
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def get_content_type(self):
if not self.model:
return self.content_type
app_label, model = self.model.split('.')
return ContentType.objects.get_by_natural_key(app_label, model.lower())
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def matches(self, instance):
safe_locals = {
instance._meta.model_name: instance
}
return eval(self.match, safe_locals)
def get_metric(self, instance):
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if self.metric:
safe_locals = {
instance._meta.model_name: instance
}
return eval(self.metric, safe_locals)