django-orchestra-test/orchestra/apps/webapps/models.py

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import os
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import re
from django.core.exceptions import ValidationError
from django.db import models
from django.db.models.signals import pre_save, pre_delete
from django.dispatch import receiver
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from django.utils.functional import cached_property
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from django.utils.translation import ugettext_lazy as _
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from jsonfield import JSONField
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from orchestra.core import validators, services
from orchestra.utils.functional import cached
from . import settings
from .options import AppOption
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from .types import AppType
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class WebApp(models.Model):
""" Represents a web application """
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name = models.CharField(_("name"), max_length=128, validators=[validators.validate_name])
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type = models.CharField(_("type"), max_length=32,
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choices=AppType.get_plugin_choices())
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account = models.ForeignKey('accounts.Account', verbose_name=_("Account"),
related_name='webapps')
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data = JSONField(_("data"), blank=True, default={},
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help_text=_("Extra information dependent of each service."))
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class Meta:
unique_together = ('name', 'account')
verbose_name = _("Web App")
verbose_name_plural = _("Web Apps")
def __unicode__(self):
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return self.name
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def get_description(self):
return self.get_type_display()
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@cached_property
def type_class(self):
return AppType.get_plugin(self.type)
@cached_property
def type_instance(self):
""" Per request lived type_instance """
return self.type_class(self)
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def clean(self):
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apptype = self.type_instance
apptype.validate()
self.data = apptype.clean_data()
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@cached
def get_options(self):
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return {
opt.name: opt.value for opt in self.options.all()
}
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def get_directive(self):
return self.type_instance.get_directive()
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def get_path(self):
context = {
'home': self.get_user().get_home(),
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'app_name': self.name,
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}
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path = settings.WEBAPPS_BASE_ROOT % context
public_root = self.options.filter(name='public-root').first()
if public_root:
path = os.path.join(path, public_root.value)
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return os.path.normpath(path.replace('//', '/'))
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def get_user(self):
return self.account.main_systemuser
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def get_username(self):
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return self.get_user().username
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def get_groupname(self):
return self.get_username()
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class WebAppOption(models.Model):
webapp = models.ForeignKey(WebApp, verbose_name=_("Web application"),
related_name='options')
name = models.CharField(_("name"), max_length=128, choices=AppType.get_options_choices())
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value = models.CharField(_("value"), max_length=256)
class Meta:
unique_together = ('webapp', 'name')
verbose_name = _("option")
verbose_name_plural = _("options")
def __unicode__(self):
return self.name
@cached_property
def option_class(self):
return AppOption.get_plugin(self.name)
@cached_property
def option_instance(self):
""" Per request lived option instance """
return self.option_class(self)
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def clean(self):
self.option_instance.validate()
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services.register(WebApp)
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# Admin bulk deletion doesn't call model.delete()
# So, signals are used instead of model method overriding
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@receiver(pre_save, sender=WebApp, dispatch_uid='webapps.type.save')
def type_save(sender, *args, **kwargs):
instance = kwargs['instance']
instance.type_instance.save()
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@receiver(pre_delete, sender=WebApp, dispatch_uid='webapps.type.delete')
def type_delete(sender, *args, **kwargs):
instance = kwargs['instance']
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try:
instance.type_instance.delete()
except KeyError:
pass