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import re
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import json
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from django.utils.translation import ugettext as _
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from django.db import models
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from django.core.exceptions import ImproperlyConfigured, ValidationError
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from tenant_schemas.models import TenantMixin
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from . import app_settings
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class Tenant(TenantMixin):
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name = models.CharField(max_length=100, verbose_name=_('name'))
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created_on = models.DateField(auto_now_add=True, verbose_name=_('created on'))
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is_active = models.BooleanField(default=True, blank=True, verbose_name=_('active'))
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# default true, schema will be automatically created and synced when it is saved
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auto_create_schema = False
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def __unicode__(self):
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return u'%s' % self.schema_name
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class ClientSetting(models.Model):
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NAME_RE = re.compile(r'^[_A-Z][_A-Z0-9]*$')
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tenant = models.ForeignKey('Tenant', verbose_name=_('tenant'))
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name = models.CharField(max_length=100, verbose_name=_('name'))
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value = models.TextField(verbose_name=_('value'), help_text=_('JSON'))
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def get_json(self):
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return json.loads(self.value)
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def set_json(self, json):
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self.value = json.dumps(json)
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json = property(get_json, set_json)
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def clean(self):
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if not re.match(self.NAME_RE, self.name):
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raise ValidationError('name must be an uppercase variable '
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'name')
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try:
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json.loads(self.value)
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except ValueError:
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raise ValidationError('invalid JSON document')
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if self.name in dir(app_settings):
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raise ImproperlyConfigured('The setting %r cannot be overridden by tenants' % self.name)
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