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# $Id$
# Copyright (C) 2014 Dragon Research Labs ("DRL")
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND DRL DISCLAIMS ALL WARRANTIES WITH
# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS. IN NO EVENT SHALL DRL BE LIABLE FOR ANY SPECIAL, DIRECT,
# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.
"""
Global Django ORM database router for the RPKI CA code.
"""
# Reference:
# https://docs.djangoproject.com/en/1.6/topics/db/multi-db/
class RPKIDBRouter(object):
"""
Django ORM database router for RPKI code. rpkid and pubd get their
own databases, named "rpkidb" and "pubdb", respectively. Everything
else goes to the "default" database.
"""
dedicated = ("rpkidb", "pubdb")
def db_for_read(self, model, **hints):
if model._meta.app_label in self.dedicated:
return model._meta.app_label
else:
return "default"
def db_for_write(self, model, **hints):
if model._meta.app_label in self.dedicated:
return model._meta.app_label
else:
return "default"
def allow_relation(self, obj1, obj2, **hints):
if obj1._meta.app_label in self.dedicated and obj1._meta.app_label == obj2._meta.app_label:
return True
elif obj1._meta.app_label not in self.dedicated and obj2._meta.app_label not in self.dedicated:
return True
else:
return None
def allow_syncdb(self, db, model):
if model._meta.app_label in self.dedicated:
return db == model._meta.app_label
else:
return db not in self.dedicated
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