# The version of Django Evolution
#
# This is in the format of:
#
#   (Major, Minor, Micro, alpha/beta/rc/final, Release Number, Released)
#
VERSION = (0, 6, 3, 'final', 0, True)


def get_version_string():
    version = '%s.%s' % (VERSION[0], VERSION[1])

    if VERSION[2]:
        version += ".%s" % VERSION[2]

    if VERSION[3] != 'final':
        if VERSION[3] == 'rc':
            version += ' RC%s' % VERSION[4]
        else:
            version += ' %s %s' % (VERSION[3], VERSION[4])

    if not is_release():
        version += " (dev)"

    return version


def get_package_version():
    version = '%s.%s' % (VERSION[0], VERSION[1])

    if VERSION[2]:
        version += ".%s" % VERSION[2]

    if VERSION[3] != 'final':
        version += '%s%s' % (VERSION[3], VERSION[4])

    return version


def is_release():
    return VERSION[5]


__version_info__ = VERSION[:-1]
__version__ = get_package_version()


class EvolutionException(Exception):
    def __init__(self,msg):
        self.msg = msg

    def __str__(self):
        return str(self.msg)


class CannotSimulate(EvolutionException):
    pass


class SimulationFailure(EvolutionException):
    pass


class EvolutionNotImplementedError(EvolutionException, NotImplementedError):
    pass


try:
    from django.db import connections
    __is_multi_db = True
except:
    __is_multi_db = False


def is_multi_db():
    return __is_multi_db