Python models.Settings类代码示例

def set_default_language(request, lang_code, global_set=False):
    """
    global_set has different meanings for different users.
    For students, it means their personal default language
    For teachers, it means their personal default language
    For django users, it means the server language.
    """

    # Get lang packs directly, to force reloading, as they may have changed.
    lang_packs = get_installed_language_packs(force=True).keys()
    lang_code = select_best_available_language(lang_code, available_codes=lang_packs)  # Make sure to reload available languages; output is in django_lang format

    if lang_code != request.session.get("default_language"):
        logging.debug("setting session language to %s" % lang_code)
        request.session["default_language"] = lang_code

    if global_set:
        if request.is_django_user and lang_code != Settings.get("default_language"):
            logging.debug("setting server default language to %s" % lang_code)
            Settings.set("default_language", lang_code)
        elif not request.is_django_user and request.is_logged_in and lang_code != request.session["facility_user"].default_language:
            logging.debug("setting user default language to %s" % lang_code)
            request.session["facility_user"].default_language = lang_code
            request.session["facility_user"].save()

    set_request_language(request, lang_code)

 def setUp_fake_device(self):
     """
     Fake the install process, to (quickly) make a key and set up the own_device()
     """
     # Could be a fixture, but safer to simply hard-code.
     Settings.set("public_key", u'MIIBCgKCAQEAlbIPLnQH2dORFBK8i9x7/3E0DR571S01aP7M0TJD8vJf8OrgL8pnru3o2Jaoni1XasCZgizvM4GNImk9geqPP/sFkj0cf/MXSLr1VDKo1SoflST9yTbOi7tzVuhTeL4P3LJL6PO6iNiWkjAdqp9QX3mE/DHh/Q40G68meRw6dPDI4z8pyUcshOpxAHTSh2YQ39LJAxP7YS26yjDX/+9UNhetFxemMrBZO0UKtJYggPYRlMZmlTZLBU4ODMmK6MT26fB4DC4ChA3BD4OFiGDHI/iSy+iYJlcWaldbZtc+YfZlGhvsLnJlrp4WYykJSH5qeBuI7nZLWjYWWvMrDepXowIDAQAB')
     Settings.set("private_key", u'-----BEGIN RSA PRIVATE KEY-----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\n-----END RSA PRIVATE KEY-----\n')
     Device.initialize_own_device()

def load_keys():
    private_key_string = Settings.get("private_key")
    public_key_string = Settings.get("public_key")
    if private_key_string and public_key_string:
        sys.modules[__name__]._own_key = Key(
            public_key_string=public_key_string,
            private_key_string=private_key_string)
    else:
        reset_keys()

    def initialize_default_facility(cls, facility_name=None):
        facility_name = facility_name or settings.INSTALL_FACILITY_NAME

        # Finally, install a facility--would help users get off the ground
        if facility_name:
            facility = get_object_or_None(cls, name=facility_name)
            if not facility:
                facility = Facility(name=facility_name)
                facility.save()
            Settings.set("default_facility", facility.id)

    def setup_fake_device(cls, **kwargs):
        fields = FakeDeviceMixin.DEFAULTS.copy()
        fields.update(kwargs)

        Device.own_device = None

        Settings.set("public_key", fields.get('public_key'))
        Settings.set("private_key", fields.get('private_key'))

        Device.initialize_own_device()

    def setup_server_if_needed(self):
        """Run the setup command, if necessary."""

        try: # Ensure that the database has been synced and a Device has been created
            assert Settings.get("private_key") and Device.objects.count()
        except (DatabaseError, AssertionError): # Otherwise, run the setup command
            self.stdout.write("Setting up KA Lite; this may take a few minutes; please wait!\n")
            call_command("setup", interactive=False)
        # Double check that the setup process successfully created a Device
        assert Settings.get("private_key") and Device.objects.count(), "There was an error configuring the server. Please report the output of this command to Learning Equality."

    def handle(self, *args, **options):
        # Eliminate irrelevant settings
        for opt in BaseCommand.option_list:
            del options[opt.dest]

        # Parse the crappy way that runcherrypy takes args,
        #   or the host/port
        for arg in args:
            if "=" in arg:
                (key,val) = arg.split("=")
                options[key] = val
            elif ":" in arg:
                (options["host"], options["port"]) = arg.split(":")
            elif isnumeric(arg):
                options["port"] = arg
            else:
                raise CommandError("Unexpected argument format: %s" % arg)

        # In order to avoid doing this twice when the autoreloader
        #   loads this process again, only execute the initialization
        #   code if autoreloader won't be run (daemonize), or if
        #   RUN_MAIN is set (autoreloader has started)
        if options["daemonize"] or os.environ.get("RUN_MAIN"):
            self.setup_server_if_needed()

            # we do this on every server request,
            # as we don't know what happens when we're not looking.
            self.reinitialize_server()

        # In case any chronograph threads were interrupted the last time
        # the server was stopped, clear their is_running flags to allow
        # them to be started up again as needed.
        Job.objects.update(is_running=False)


        call_command("collectstatic", interactive=False)

        # set the BUILD_HASH to the current time, so assets get refreshed to their newest versions
        build_hash = str(time.mktime(time.gmtime()))
        logging.debug("Writing %s as BUILD_HASH" % build_hash)
        Settings.set('BUILD_HASH', build_hash)

        if options['startuplock']:
            os.unlink(options['startuplock'])
        
        # Now call the proper command
        if not options["production"]:
            call_command("runserver", "%s:%s" % (options["host"], options["port"]))
        else:
            del options["production"]
            sys.stdout.write("To access KA Lite from another connected computer, try the following address(es):\n")
            for addr in get_ip_addresses():
                sys.stdout.write("\thttp://%s:%s/\n" % (addr, settings.USER_FACING_PORT()))
            call_command("runcherrypyserver", *["%s=%s" % (key,val) for key, val in options.iteritems()])

    def initialize_default_facility(cls, facility_name=None):
        facility_name = facility_name or getattr(settings, "INSTALL_FACILITY_NAME", None) or unicode(_("Default Facility"))

        # Finally, install a facility--would help users get off the ground
        facilities = Facility.objects.filter(name=facility_name)
        if facilities.count() == 0:
            # Create a facility, set it as the default.
            facility = Facility(name=facility_name)
            facility.save()
            Settings.set("default_facility", facility.id)

        elif Settings.get("default_facility") not in [fac.id for fac in facilities.all()]:
            # Use an existing facility as the default, if one of them isn't the default already.
            Settings.set("default_facility", facilities[0].id)

    def setup_server_if_needed(self):
        """Run the setup command, if necessary.
            It's necessary if the Settings model doesn't have a "database_version" or if that version doesn't match
            kalite.version.VERSION, indicating the source has been changed. Then setup is run to create/migrate the db.
        """

        try:
            from kalite.version import VERSION
            assert Settings.get("database_version") == VERSION
        except (DatabaseError, AssertionError):
            logging.info("Setting up KA Lite; this may take a few minutes; please wait!\n")
            call_command("setup", interactive=False)
            # Double check the setup process worked ok.
            assert Settings.get("database_version") == VERSION, "There was an error configuring the server. Please report the output of this command to Learning Equality."

def get_current_unit_settings_value(facility_id):
    """
    Get value of current unit based on facility id.  If none, defaults to 1 and creates an
    entry on the Settings.
    """
    name = get_current_unit_settings_name(facility_id)
    value = Settings.get(name, UNITS[0])
    if value == 0:
        # This may be the first time this facility`s current unit is queried so
        # make sure it has a value at Settings so we can either change it on
        # the admin page or at front-end code later.
        value = 1
        Settings.set(name, value)
    return value

 def handle(self, *args, **options):
     if Settings.get("private_key"):
         self.stderr.write("Error: This device already has an encryption key generated for it; aborting.\n")
         return
     self.stdout.write("Generating 2048-bit RSA encryption key (may take a few minutes; please wait)...\n")
     reset_keys()
     self.stdout.write("Done!\n")

    def facility_from_request_wrapper_fn(request, *args, **kwargs):
        facility = None

        if kwargs.get("facility_id", None):  # avoid using blank
            # Facility passed in directly
            facility = get_object_or_None(Facility, pk=kwargs["facility_id"])
            del kwargs["facility_id"]

        if not facility and "facility" in request.GET:
            # Facility from querystring
            facility = get_object_or_None(Facility, pk=request.GET["facility"])

        if facility:
            pass

        elif settings.CENTRAL_SERVER:  # following options are distributed-only
            facility = None

        elif "facility_user" in request.session:
            # Facility from currently logged-in facility user
            facility = request.session["facility_user"].facility

        elif request.session["facility_count"] == 1:
            # There's only one facility
            facility = Facility.objects.all()[0]

        elif request.session["facility_count"] > 0:
            if Settings.get("default_facility"):
                # There are multiple facilities--try to grab the default
                facility = get_object_or_None(Facility, pk=Settings.get("default_facility"))

            elif Facility.objects.filter(Q(signed_by__isnull=True) | Q(signed_by=Device.get_own_device())).count() == 1:
                # Default to a locally created facility (if there are multiple, and none are specified)
                facility = Facility.objects.filter(Q(signed_by__isnull=True) | Q(signed_by=Device.get_own_device()))[0]

            else:
                facility = None
        else:
            # There's nothing; don't bother even hitting the DB
            facility = None

        if "set_default" in request.GET and request.is_admin and facility:
            Settings.set("default_facility", facility.id)

        if facility or "facility" not in kwargs:  # this syntax allows passed in facility param to work.
            kwargs["facility"] = facility
        return handler(request, *args, **kwargs)

    def setup_server_if_needed(self):
        """Run the setup command, if necessary."""

        try: # Ensure that the database has been synced and a Device has been created
            assert Settings.get("private_key") and Device.objects.count()
        except (DatabaseError, AssertionError): # Otherwise, run the setup command
            self.stdout.write("Setting up KA Lite; this may take a few minutes; please wait!\n")
            call_command("setup", interactive=False)

def set_exam_mode_on(test_object):
    """
    Sets the value of the EXAM_MODE_ON.
    TODO(cpauya): check if user is admin/teacher
    """

    # Figure out what the previous exam was, and then turn off exam mode
    # (to make sure we trigger any exam unsetting events)
    old_test_id = get_exam_mode_on()
    set_exam_mode_off()

    new_test_id = getattr(test_object, "test_id", test_object)

    # only enable exam if it isn't the same one previously enabled
    # (since we for some reason just call the same method to toggle off)
    if old_test_id != new_test_id:
        Settings.set(SETTINGS_KEY_EXAM_MODE, new_test_id)

def set_current_unit_settings_value(facility_id, value):
    """
    Set the value of the current unit on Settings based on the facility id.
    """
    old_unit = get_current_unit_settings_value(facility_id)
    name = get_current_unit_settings_name(facility_id)
    s = Settings.set(name, value)
    unit_switch.send(sender="None", old_unit=old_unit, new_unit=value, facility_id=facility_id)
    return s