# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import os

import logging

import datetime

import traceback

from collections import defaultdict

from sqlalchemy import *

from sqlalchemy.ext.hybrid import hybrid_property

from sqlalchemy.orm import relationship, joinedload, class_mapper, validates

from beaker.cache import cache_region, region_invalidate

from rhodecode.lib.vcs.utils.lazy import LazyProperty

from rhodecode.lib.utils2 import str2bool, safe_str, get_changeset_safe, \

    safe_unicode

from rhodecode.lib.compat import json

from rhodecode.lib.caching_query import FromCache

URL_SEP = '/'

log = logging.getLogger(__name__)

#==============================================================================

# BASE CLASSES

    def __repr__(self):

        if hasattr(self, '__unicode__'):

            # python repr needs to return str

            return safe_str(self.__unicode__())

        return '<DB:%s>' % (self.__class__.__name__)

class RhodeCodeSetting(Base, BaseModel):

    __tablename__ = 'rhodecode_settings'

    __table_args__ = (

        UniqueConstraint('app_settings_name'),

        {'extend_existing': True, 'mysql_engine':'InnoDB',

         'mysql_charset': 'utf8'}

    def _get_or_create_key(cls, key, prefix, org_key):

        inv_obj = Session.query(cls).filter(cls.cache_key == key).scalar()

        if not inv_obj:

            try:

                inv_obj = CacheInvalidation(key, org_key)

                Session.add(inv_obj)

            except Exception:

                log.error(traceback.format_exc())

                Session.rollback()

        return inv_obj

    @classmethod