old_contents: from dbparti import connection, transaction
  
  
  class BasePartition(object):
      """Base partition class for all backends. All backends should inherit from it."""
      def __init__(self, column_value, column_type, **kwargs):
          self.cursor = connection.cursor()
          self.model = kwargs['object_name']
          self.table = kwargs['db_table']
          self.partition_column = kwargs['partition_column']
          self.column_value = column_value
          self.column_type = column_type
  
      def prepare(self):
          """Prepares everything that is needed to initialize partitioning"""
          raise NotImplementedError('Prepare method not implemented for partition type: {0}'.format(self.__class__.__name__))
  
      def exists(self):
          """Checks if partition exists"""
          raise NotImplementedError('Exists method not implemented for partition type: {0}'.format(self.__class__.__name__))
  
      def create(self):
          """Creates new partition"""
          raise NotImplementedError('Create method not implemented for partition type: {0}'.format(self.__class__.__name__))
  
      def _get_name(self):
          """Defines name for a new partition"""
          raise NotImplementedError('Name method not implemented for partition type: {0}'.format(self.__class__.__name__))
  
      def _get_partition_function(self):
          """Contains a partition function that is used to create new partitions at database level"""
          raise NotImplementedError('Partition function method not implemented for partition type: {0}'.format(self.__class__.__name__))
  
  
  class BasePartitionFilter(object):
      """Base class for all filter types. All filter types should inherit from it."""
      def __init__(self, partition_show, **kwargs):
          self.partition_show = partition_show
          self.model = kwargs['object_name']
          self.table = kwargs['db_table']
          self.partition_column = kwargs['partition_column']
  
      def apply(self):
          """Contains a filter that needs to be applied to queryset"""
          raise NotImplementedError('Filter not implemented for type: {0}'.format(self.__class__.__name__))
  
new_contents: from dbparti import connection, transaction
  
  
  class BasePartition(object):
      """Base partition class for all backends. All backends should inherit from it."""
      def __init__(self, column_value, column_type, **kwargs):
          self.cursor = connection.cursor()
          self.model = kwargs['object_name']
          self.table = kwargs['db_table']
          self.partition_pk = kwargs['pk']
          self.partition_column = kwargs['partition_column']
          self.column_value = column_value
          self.column_type = column_type
  
      def prepare(self):
          """Prepares everything that is needed to initialize partitioning"""
          raise NotImplementedError('Prepare method not implemented for partition type: {0}'.format(self.__class__.__name__))
  
      def exists(self):
          """Checks if partition exists"""
          raise NotImplementedError('Exists method not implemented for partition type: {0}'.format(self.__class__.__name__))
  
      def create(self):
          """Creates new partition"""
          raise NotImplementedError('Create method not implemented for partition type: {0}'.format(self.__class__.__name__))
  
      def _get_name(self):
          """Defines name for a new partition"""
          raise NotImplementedError('Name method not implemented for partition type: {0}'.format(self.__class__.__name__))
  
      def _get_partition_function(self):
          """Contains a partition function that is used to create new partitions at database level"""
          raise NotImplementedError('Partition function method not implemented for partition type: {0}'.format(self.__class__.__name__))
  
  
  class BasePartitionFilter(object):
      """Base class for all filter types. All filter types should inherit from it."""
      def __init__(self, partition_show, **kwargs):
          self.partition_show = partition_show
          self.model = kwargs['object_name']
          self.table = kwargs['db_table']
          self.partition_column = kwargs['partition_column']
  
      def apply(self):
          """Contains a filter that needs to be applied to queryset"""
          raise NotImplementedError('Filter not implemented for type: {0}'.format(self.__class__.__name__))
  
subject: Save PK of the model to be partitioned