How to use _assert_active method in localstack

Best Python code snippet using localstack_python

revisions.py

Source:revisions.py

...50    def is_active(self):51        """Returns whether there is an active revision for this thread."""52        return self._depth > 053    54    def _assert_active(self):55        """Checks for an active revision, throwning an exception if none."""56        if not self.is_active():57            raise RevisionManagementError, "There is no active revision for this thread."58        59    def _add(self, obj):60        """61        Adds an object to the current revision.62        63        If `fields` is specified, then only the named fields will be serialized.64        65        If `follow` is specified, then the named foreign relationships will also66        be included in the revision.  `follow` can be specified as a list of67        relationship names, or as a dictionary mapping relationship names to68        a list of fields to be serialized.69        """70        self._assert_active()71        self._versions.add(obj)72        73    def set_user(self, user):74        """Sets the user for the current revision"""75        self._assert_active()76        self._user = user77        78    def get_user(self):79        """Gets the user for the current revision."""80        self._assert_active()81        return self._user82    83    user = property(get_user,84                    set_user,85                    doc="The user for the current revision.")86        87    def set_comment(self, comment):88        """Sets the comment for the current revision"""89        self._assert_active()90        self._comment = comment91        92    def get_comment(self):93        """Gets the comment for the current revision."""94        self._assert_active()95        return self._comment96    97    comment = property(get_comment,98                       set_comment,99                       doc="The comment for the current revision.")100        101    def add_meta(self, cls, **kwargs):102        """Adds a class of mete information to the current revision."""103        self._assert_active()104        self._meta.append((cls, kwargs))105        106    def invalidate(self):107        """Marks this revision as broken, so should not be commited."""108        self._assert_active()109        self._is_invalid = True110        111    def end(self):112        """Ends a revision."""113        self._assert_active()114        self._depth -= 1115        # Handle end of revision conditions here.116        if self._depth == 0:117            try:118                if self._versions and not self._is_invalid:119                    # Save a new revision.120                    revision = Revision.objects.create(user=self._user,121                                                       comment=self._comment)122                    revision_set = set()123                    # Follow relationships.124                    for version in self._versions:125                        add_to_revision(version, revision_set)126                    # Save version models.127                    for obj in revision_set:...

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