from django.db import models
from django.contrib.contenttypes import generic


class RevisionModelMixin(models.Model):

    class Meta:
        abstract = True

    _has_revision_support = True

    revision = models.PositiveIntegerField(default=0,
        db_index=True, editable=False)

    versions = generic.GenericRelation('reversion.Version')

    def save(self, *args, **kwargs):
        self.revision += 1
        super(RevisionModelMixin, self).save(*args, **kwargs)

from django.db import models


class RevisionModelMixin(models.Model):

    class Meta:
        abstract = True

    _has_revision_support = True

    revision = models.PositiveIntegerField(default=0,
        db_index=True, editable=False)

    def save(self, *args, **kwargs):
        self.revision += 1
        super(RevisionModelMixin, self).save(*args, **kwargs)

Remove generic relation to reversion.Version from RevisionModelMixin
Remove generic relation to reversion.Version from RevisionModelMixin

  from django.db import models
- from django.contrib.contenttypes import generic
  
  
  class RevisionModelMixin(models.Model):
  
      class Meta:
          abstract = True
  
      _has_revision_support = True
  
      revision = models.PositiveIntegerField(default=0,
          db_index=True, editable=False)
  
-     versions = generic.GenericRelation('reversion.Version')
- 
      def save(self, *args, **kwargs):
          self.revision += 1
          super(RevisionModelMixin, self).save(*args, **kwargs)
  
Remove generic relation to reversion.Version from RevisionModelMixin
## Code Before:
from django.db import models
from django.contrib.contenttypes import generic


class RevisionModelMixin(models.Model):

    class Meta:
        abstract = True

    _has_revision_support = True

    revision = models.PositiveIntegerField(default=0,
        db_index=True, editable=False)

    versions = generic.GenericRelation('reversion.Version')

    def save(self, *args, **kwargs):
        self.revision += 1
        super(RevisionModelMixin, self).save(*args, **kwargs)

## Instruction:
Remove generic relation to reversion.Version from RevisionModelMixin
## Code After:
from django.db import models


class RevisionModelMixin(models.Model):

    class Meta:
        abstract = True

    _has_revision_support = True

    revision = models.PositiveIntegerField(default=0,
        db_index=True, editable=False)

    def save(self, *args, **kwargs):
        self.revision += 1
        super(RevisionModelMixin, self).save(*args, **kwargs)
