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76 lines
2.3 KiB
76 lines
2.3 KiB
from django.db import models
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from django.utils.translation import gettext_lazy as _
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from common.db.utils import Encryptor
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from common.utils import get_logger
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logger = get_logger(__name__)
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class Preference(models.Model):
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name = models.CharField(max_length=128, verbose_name=_("Name"))
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category = models.CharField(max_length=128, verbose_name=_('Category'))
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value = models.TextField(verbose_name=_("Value"), default='', blank=True)
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encrypted = models.BooleanField(default=False, verbose_name=_('Encrypted'))
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user = models.ForeignKey(
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'users.User', verbose_name=_("Users"), related_name='preferences', on_delete=models.CASCADE
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)
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def __str__(self):
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return f'{self.name}({self.user.username})'
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@classmethod
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def encrypt(cls, value):
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return Encryptor(value).encrypt()
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@classmethod
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def decrypt(cls, value):
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return Encryptor(value).decrypt()
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@property
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def decrypt_value(self):
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if self.encrypted:
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return self.decrypt(self.value)
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return self.value
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class Meta:
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db_table = "users_preference"
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verbose_name = _("Preference")
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unique_together = [('name', 'user_id')]
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class PreferenceManager:
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def __init__(self, user):
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self.user = user
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def get(self, name, category=None):
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query = {'name': name, 'user': self.user}
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if category:
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query['category'] = category
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return Preference.objects.filter(**query).first()
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def get_value(self, name, category=None, default=None):
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preference = self.get(name, category)
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if preference:
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return preference.decrypt_value
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return default
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def set(self, name, value, category=None, encrypted=False):
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query = {'name': name, 'user': self.user}
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if category:
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query['category'] = category
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if encrypted:
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value = Preference.encrypt(value)
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preference, __ = Preference.objects.update_or_create(
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defaults={'value': value, 'encrypted': encrypted},
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**query
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)
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return preference
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def set_value(self, name, value, category=None, encrypted=False):
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preference = self.set(name, value, category, encrypted)
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return preference.decrypt_value
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def as_dict(self):
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return {pref.name: pref.decrypt_value for pref in self.user.preferences.all()}
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