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import datetime
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import uuid
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import collections
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from django.views.generic import View
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from import_export.fields import Field
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import tablib
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from authentic2.constants import SWITCH_USER_SESSION_KEY
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from authentic2.models import Attribute, PasswordReset
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resource_class = UserResource
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export_prefix = 'users-'
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def get_resource(self):
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'''Subclass default UserResource class to dynamically add field for extra attributes'''
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attrs = collections.OrderedDict()
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for attribute in Attribute.objects.all():
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attrs['attribute_%s' % attribute.name] = Field(attribute='attributes__%s' % attribute.name)
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custom_class = type('UserResourceClass', (self.resource_class,), attrs)
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return custom_class()
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def get_queryset(self):
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'''Prefetch attribute values.'''
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qs = super(UsersExportView, self).get_queryset()
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return qs.prefetch_related('attribute_values', 'attribute_values__attribute')
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@property
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def csv(self):
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return self._dataset.export('csv')
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def get_dataset(self):
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user_resource = UserResource()
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fields = user_resource._meta.export_order + ('email_verified', 'is_active', 'modified')
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attributes = [attr.name for attr in Attribute.objects.all()]
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headers = fields + tuple(['attribute_%s' % attr for attr in attributes])
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def iso(rec):
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if hasattr(rec, 'strftime'):
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if isinstance(rec, datetime.datetime):
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_format = "%Y-%m-%d %H:%M:%S"
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else:
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_format = "%Y-%m-%d"
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return rec.strftime(_format)
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return rec
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def create_record(user):
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record = []
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for field in fields:
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if field == 'roles':
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value = user_resource.dehydrate_roles(user)
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else:
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value = getattr(user, field)
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record.append(value)
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attr_d = user.attributes.values
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for attr in attributes:
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record.append(attr_d.get(attr, ''))
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return map(iso, record)
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self._dataset = tablib.Dataset(headers=headers)
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for user in self.get_data():
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self._dataset.append(create_record(user))
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return self
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users_export = UsersExportView.as_view()
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