text: # -*- coding: utf-8 -*-
  from south.utils import datetime_utils as datetime
  from south.db import db
  from south.v2 import SchemaMigration
  from django.db import models
  
  
  class Migration(SchemaMigration):
  
      def forwards(self, orm):
          # Deleting field 'Parameter.class_path'
          db.delete_column(u'physical_parameter', 'class_path')
  
          # Adding field 'Parameter.custom_method'
          db.add_column(u'physical_parameter', 'custom_method',
                        self.gf('django.db.models.fields.CharField')(max_length=200, null=True, blank=True),
                        keep_default=False)
  
  
      def backwards(self, orm):
          # Adding field 'Parameter.class_path'
          db.add_column(u'physical_parameter', 'class_path',
                        self.gf('django.db.models.fields.CharField')(max_length=200, null=True, blank=True),
                        keep_default=False)
  
          # Deleting field 'Parameter.custom_method'
          db.delete_column(u'physical_parameter', 'custom_method')
  
  
      models = {
          u'physical.databaseinfra': {
              'Meta': {'object_name': 'DatabaseInfra'},
              'capacity': ('django.db.models.fields.PositiveIntegerField', [], {'default': '1'}),
              'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
              'database_key': ('django.db.models.fields.CharField', [], {'max_length': '255', 'null': 'True', 'blank': 'True'}),
              'disk_offering': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "u'databaseinfras'", 'null': 'True', 'on_delete': 'models.PROTECT', 'to': u"orm['physical.DiskOffering']"}),
              'endpoint': ('django.db.models.fields.CharField', [], {'max_length': '255', 'null': 'True', 'blank': 'True'}),
              'endpoint_dns': ('django.db.models.fields.CharField', [], {'max_length': '255', 'null': 'True', 'blank': 'True'}),
              'engine': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "u'databaseinfras'", 'on_delete': 'models.PROTECT', 'to': u"orm['physical.Engine']"}),
              'environment': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "u'databaseinfras'", 'on_delete': 'models.PROTECT', 'to': u"orm['physical.Environment']"}),
              u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'last_vm_created': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
              'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '100'}),
              'name_prefix': ('django.db.models.fields.CharField', [], {'max_length': '10', 'null': 'True', 'blank': 'True'}),
              'name_stamp': ('django.db.models.fields.CharField', [], {'max_length': '20', 'null': 'True', 'blank': 'True'}),
              'password': ('django.db.models.fields.CharField', [], {'max_length': '406', 'blank': 'True'}),
              'per_database_size_mbytes': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
              'plan': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "u'databaseinfras'", 'on_delete': 'models.PROTECT', 'to': u"orm['physical.Plan']"}),
              'updated_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'}),
              'user': ('django.db.models.fields.CharField', [], {'max_length': '100', 'blank': 'True'})
          },
          u'physical.databaseinfraparameter': {
              'Meta': {'unique_together': "((u'databaseinfra', u'parameter'),)", 'object_name': 'DatabaseInfraParameter'},
              'applied_on_database': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
              'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
              'current_value': ('django.db.models.fields.CharField', [], {'max_length': '200'}),
              'databaseinfra': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['physical.DatabaseInfra']"}),
              u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'parameter': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['physical.Parameter']"}),
              'reset_default_value': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
              'updated_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'}),
              'value': ('django.db.models.fields.CharField', [], {'max_length': '200'})
          },
          u'physical.diskoffering': {
              'Meta': {'object_name': 'DiskOffering'},
              'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
              u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '255'}),
              'size_kb': ('django.db.models.fields.PositiveIntegerField', [], {}),
              'updated_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'})
          },
          u'physical.engine': {
              'Meta': {'ordering': "(u'engine_type__name', u'version')", 'unique_together': "((u'version', u'engine_type'),)", 'object_name': 'Engine'},
              'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
              'engine_type': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "u'engines'", 'on_delete': 'models.PROTECT', 'to': u"orm['physical.EngineType']"}),
              'engine_upgrade_option': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "u'backwards_engine'", 'null': 'True', 'on_delete': 'models.SET_NULL', 'to': u"orm['physical.Engine']"}),
              'has_users': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
              u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'path': ('django.db.models.fields.CharField', [], {'max_length': '255', 'null': 'True', 'blank': 'True'}),
              'read_node_description': ('django.db.models.fields.CharField', [], {'default': "u''", 'max_length': '100', 'null': 'True', 'blank': 'True'}),
              'template_name': ('django.db.models.fields.CharField', [], {'max_length': '200', 'null': 'True', 'blank': 'True'}),
              'updated_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'}),
              'user_data_script': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
              'version': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
              'write_node_description': ('django.db.models.fields.CharField', [], {'default': "u''", 'max_length': '100', 'null': 'True', 'blank': 'True'})
          },
          u'physical.enginetype': {
              'Meta': {'ordering': "(u'name',)", 'object_name': 'EngineType'},
              'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
              u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'is_in_memory': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
              'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '100'}),
              'updated_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'})
          },
          u'physical.environment': {
              'Meta': {'object_name': 'Environment'},
              'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
              u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'min_of_zones': ('django.db.models.fields.PositiveIntegerField', [], {'default': '1'}),
              'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '100'}),
              'updated_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'})
          },
          u'physical.host': {
              'Meta': {'object_name': 'Host'},
              'address': ('django.db.models.fields.CharField', [], {'max_length': '255'}),
              'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
              'future_host': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['physical.Host']", 'null': 'True', 'on_delete': 'models.SET_NULL', 'blank': 'True'}),
              'hostname': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '255'}),
              u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'monitor_url': ('django.db.models.fields.URLField', [], {'max_length': '500', 'null': 'True', 'blank': 'True'}),
              'os_description': ('django.db.models.fields.CharField', [], {'max_length': '255', 'null': 'True', 'blank': 'True'}),
              'updated_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'})
          },
          u'physical.instance': {
              'Meta': {'unique_together': "((u'address', u'port'),)", 'object_name': 'Instance'},
              'address': ('django.db.models.fields.CharField', [], {'max_length': '200'}),
              'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
              'databaseinfra': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "u'instances'", 'to': u"orm['physical.DatabaseInfra']"}),
              'dns': ('django.db.models.fields.CharField', [], {'max_length': '200'}),
              'future_instance': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['physical.Instance']", 'null': 'True', 'on_delete': 'models.SET_NULL', 'blank': 'True'}),
              'hostname': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "u'instances'", 'to': u"orm['physical.Host']"}),
              u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'instance_type': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
              'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
              'port': ('django.db.models.fields.IntegerField', [], {}),
              'read_only': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
              'status': ('django.db.models.fields.IntegerField', [], {'default': '2'}),
              'updated_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'})
          },
          u'physical.parameter': {
              'Meta': {'ordering': "(u'engine_type__name', u'name')", 'unique_together': "((u'name', u'engine_type'),)", 'object_name': 'Parameter'},
              'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
              'custom_method': ('django.db.models.fields.CharField', [], {'max_length': '200', 'null': 'True', 'blank': 'True'}),
              'dynamic': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
              'engine_type': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "u'enginetype'", 'on_delete': 'models.PROTECT', 'to': u"orm['physical.EngineType']"}),
              u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'name': ('django.db.models.fields.CharField', [], {'max_length': '200'}),
              'updated_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'})
          },
          u'physical.plan': {
              'Meta': {'object_name': 'Plan'},
              'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
              'description': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
              'disk_offering': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "u'plans'", 'null': 'True', 'on_delete': 'models.PROTECT', 'to': u"orm['physical.DiskOffering']"}),
              'engine': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "u'plans'", 'to': u"orm['physical.Engine']"}),
              'engine_equivalent_plan': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "u'backwards_plan'", 'null': 'True', 'on_delete': 'models.SET_NULL', 'to': u"orm['physical.Plan']"}),
              'environments': ('django.db.models.fields.related.ManyToManyField', [], {'related_name': "u'plans'", 'symmetrical': 'False', 'to': u"orm['physical.Environment']"}),
              'has_persistence': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
              u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
              'is_ha': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
              'max_db_size': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
              'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '100'}),
              'provider': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
              'replication_topology': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "u'replication_topology'", 'null': 'True', 'to': u"orm['physical.ReplicationTopology']"}),
              'updated_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'})
          },
          u'physical.planattribute': {
              'Meta': {'object_name': 'PlanAttribute'},
              'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
              u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'name': ('django.db.models.fields.CharField', [], {'max_length': '200'}),
              'plan': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "u'plan_attributes'", 'to': u"orm['physical.Plan']"}),
              'updated_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'}),
              'value': ('django.db.models.fields.CharField', [], {'max_length': '200'})
          },
          u'physical.replicationtopology': {
              'Meta': {'object_name': 'ReplicationTopology'},
              'class_path': ('django.db.models.fields.CharField', [], {'max_length': '200'}),
              'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
              'details': ('django.db.models.fields.CharField', [], {'max_length': '200', 'null': 'True', 'blank': 'True'}),
              'engine': ('django.db.models.fields.related.ManyToManyField', [], {'related_name': "u'replication_topologies'", 'symmetrical': 'False', 'to': u"orm['physical.Engine']"}),
              'has_horizontal_scalability': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
              u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'name': ('django.db.models.fields.CharField', [], {'max_length': '200'}),
              'parameter': ('django.db.models.fields.related.ManyToManyField', [], {'symmetrical': 'False', 'related_name': "u'replication_topologies'", 'blank': 'True', 'to': u"orm['physical.Parameter']"}),
              'script': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "u'replication_topologies'", 'null': 'True', 'to': u"orm['physical.Script']"}),
              'updated_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'})
          },
          u'physical.script': {
              'Meta': {'object_name': 'Script'},
              'configuration': ('django.db.models.fields.CharField', [], {'max_length': '300'}),
              'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
              u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'initialization': ('django.db.models.fields.CharField', [], {'max_length': '300'}),
              'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
              'start_database': ('django.db.models.fields.CharField', [], {'max_length': '300'}),
              'start_replication': ('django.db.models.fields.CharField', [], {'max_length': '300', 'null': 'True', 'blank': 'True'}),
              'updated_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'})
          }
      }
  
      complete_apps = ['physical']